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v8/test/cctest/test-debug.cc
keuchel@chromium.org 80d1b898fb Fix gcc-4.6 warnings. 
BUG=v8:1806

Review URL: http://codereview.chromium.org/8386072

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9867 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2011-11-03 08:59:01 +00:00

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// Copyright 2011 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifdef ENABLE_DEBUGGER_SUPPORT
#include <stdlib.h>
#include "v8.h"
#include "api.h"
#include "cctest.h"
#include "compilation-cache.h"
#include "debug.h"
#include "deoptimizer.h"
#include "platform.h"
#include "stub-cache.h"
#include "utils.h"
using ::v8::internal::EmbeddedVector;
using ::v8::internal::Object;
using ::v8::internal::OS;
using ::v8::internal::Handle;
using ::v8::internal::Heap;
using ::v8::internal::JSGlobalProxy;
using ::v8::internal::Code;
using ::v8::internal::Debug;
using ::v8::internal::Debugger;
using ::v8::internal::CommandMessage;
using ::v8::internal::CommandMessageQueue;
using ::v8::internal::StepAction;
using ::v8::internal::StepIn; // From StepAction enum
using ::v8::internal::StepNext; // From StepAction enum
using ::v8::internal::StepOut; // From StepAction enum
using ::v8::internal::Vector;
using ::v8::internal::StrLength;
// Size of temp buffer for formatting small strings.
#define SMALL_STRING_BUFFER_SIZE 80
// --- A d d i t i o n a l C h e c k H e l p e r s
// Helper function used by the CHECK_EQ function when given Address
// arguments. Should not be called directly.
static inline void CheckEqualsHelper(const char* file, int line,
const char* expected_source,
::v8::internal::Address expected,
const char* value_source,
::v8::internal::Address value) {
if (expected != value) {
V8_Fatal(file, line, "CHECK_EQ(%s, %s) failed\n# "
"Expected: %i\n# Found: %i",
expected_source, value_source, expected, value);
}
}
// Helper function used by the CHECK_NE function when given Address
// arguments. Should not be called directly.
static inline void CheckNonEqualsHelper(const char* file, int line,
const char* unexpected_source,
::v8::internal::Address unexpected,
const char* value_source,
::v8::internal::Address value) {
if (unexpected == value) {
V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %i",
unexpected_source, value_source, value);
}
}
// Helper function used by the CHECK function when given code
// arguments. Should not be called directly.
static inline void CheckEqualsHelper(const char* file, int line,
const char* expected_source,
const Code* expected,
const char* value_source,
const Code* value) {
if (expected != value) {
V8_Fatal(file, line, "CHECK_EQ(%s, %s) failed\n# "
"Expected: %p\n# Found: %p",
expected_source, value_source, expected, value);
}
}
static inline void CheckNonEqualsHelper(const char* file, int line,
const char* expected_source,
const Code* expected,
const char* value_source,
const Code* value) {
if (expected == value) {
V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %p",
expected_source, value_source, value);
}
}
// --- H e l p e r C l a s s e s
// Helper class for creating a V8 enviromnent for running tests
class DebugLocalContext {
public:
inline DebugLocalContext(
v8::ExtensionConfiguration* extensions = 0,
v8::Handle<v8::ObjectTemplate> global_template =
v8::Handle<v8::ObjectTemplate>(),
v8::Handle<v8::Value> global_object = v8::Handle<v8::Value>())
: context_(v8::Context::New(extensions, global_template, global_object)) {
context_->Enter();
}
inline ~DebugLocalContext() {
context_->Exit();
context_.Dispose();
}
inline v8::Context* operator->() { return *context_; }
inline v8::Context* operator*() { return *context_; }
inline bool IsReady() { return !context_.IsEmpty(); }
void ExposeDebug() {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
// Expose the debug context global object in the global object for testing.
debug->Load();
debug->debug_context()->set_security_token(
v8::Utils::OpenHandle(*context_)->security_token());
Handle<JSGlobalProxy> global(Handle<JSGlobalProxy>::cast(
v8::Utils::OpenHandle(*context_->Global())));
Handle<v8::internal::String> debug_string =
FACTORY->LookupAsciiSymbol("debug");
SetProperty(global, debug_string,
Handle<Object>(debug->debug_context()->global_proxy()), DONT_ENUM,
::v8::internal::kNonStrictMode);
}
private:
v8::Persistent<v8::Context> context_;
};
// --- H e l p e r F u n c t i o n s
// Compile and run the supplied source and return the fequested function.
static v8::Local<v8::Function> CompileFunction(DebugLocalContext* env,
const char* source,
const char* function_name) {
v8::Script::Compile(v8::String::New(source))->Run();
return v8::Local<v8::Function>::Cast(
(*env)->Global()->Get(v8::String::New(function_name)));
}
// Compile and run the supplied source and return the requested function.
static v8::Local<v8::Function> CompileFunction(const char* source,
const char* function_name) {
v8::Script::Compile(v8::String::New(source))->Run();
return v8::Local<v8::Function>::Cast(
v8::Context::GetCurrent()->Global()->Get(v8::String::New(function_name)));
}
// Is there any debug info for the function?
static bool HasDebugInfo(v8::Handle<v8::Function> fun) {
Handle<v8::internal::JSFunction> f = v8::Utils::OpenHandle(*fun);
Handle<v8::internal::SharedFunctionInfo> shared(f->shared());
return Debug::HasDebugInfo(shared);
}
// Set a break point in a function and return the associated break point
// number.
static int SetBreakPoint(Handle<v8::internal::JSFunction> fun, int position) {
static int break_point = 0;
Handle<v8::internal::SharedFunctionInfo> shared(fun->shared());
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
debug->SetBreakPoint(
shared,
Handle<Object>(v8::internal::Smi::FromInt(++break_point)),
&position);
return break_point;
}
// Set a break point in a function and return the associated break point
// number.
static int SetBreakPoint(v8::Handle<v8::Function> fun, int position) {
return SetBreakPoint(v8::Utils::OpenHandle(*fun), position);
}
// Set a break point in a function using the Debug object and return the
// associated break point number.
static int SetBreakPointFromJS(const char* function_name,
int line, int position) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
OS::SNPrintF(buffer,
"debug.Debug.setBreakPoint(%s,%d,%d)",
function_name, line, position);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
v8::Handle<v8::String> str = v8::String::New(buffer.start());
return v8::Script::Compile(str)->Run()->Int32Value();
}
// Set a break point in a script identified by id using the global Debug object.
static int SetScriptBreakPointByIdFromJS(int script_id, int line, int column) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
if (column >= 0) {
// Column specified set script break point on precise location.
OS::SNPrintF(buffer,
"debug.Debug.setScriptBreakPointById(%d,%d,%d)",
script_id, line, column);
} else {
// Column not specified set script break point on line.
OS::SNPrintF(buffer,
"debug.Debug.setScriptBreakPointById(%d,%d)",
script_id, line);
}
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
{
v8::TryCatch try_catch;
v8::Handle<v8::String> str = v8::String::New(buffer.start());
v8::Handle<v8::Value> value = v8::Script::Compile(str)->Run();
CHECK(!try_catch.HasCaught());
return value->Int32Value();
}
}
// Set a break point in a script identified by name using the global Debug
// object.
static int SetScriptBreakPointByNameFromJS(const char* script_name,
int line, int column) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
if (column >= 0) {
// Column specified set script break point on precise location.
OS::SNPrintF(buffer,
"debug.Debug.setScriptBreakPointByName(\"%s\",%d,%d)",
script_name, line, column);
} else {
// Column not specified set script break point on line.
OS::SNPrintF(buffer,
"debug.Debug.setScriptBreakPointByName(\"%s\",%d)",
script_name, line);
}
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
{
v8::TryCatch try_catch;
v8::Handle<v8::String> str = v8::String::New(buffer.start());
v8::Handle<v8::Value> value = v8::Script::Compile(str)->Run();
CHECK(!try_catch.HasCaught());
return value->Int32Value();
}
}
// Clear a break point.
static void ClearBreakPoint(int break_point) {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
debug->ClearBreakPoint(
Handle<Object>(v8::internal::Smi::FromInt(break_point)));
}
// Clear a break point using the global Debug object.
static void ClearBreakPointFromJS(int break_point_number) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
OS::SNPrintF(buffer,
"debug.Debug.clearBreakPoint(%d)",
break_point_number);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
v8::Script::Compile(v8::String::New(buffer.start()))->Run();
}
static void EnableScriptBreakPointFromJS(int break_point_number) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
OS::SNPrintF(buffer,
"debug.Debug.enableScriptBreakPoint(%d)",
break_point_number);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
v8::Script::Compile(v8::String::New(buffer.start()))->Run();
}
static void DisableScriptBreakPointFromJS(int break_point_number) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
OS::SNPrintF(buffer,
"debug.Debug.disableScriptBreakPoint(%d)",
break_point_number);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
v8::Script::Compile(v8::String::New(buffer.start()))->Run();
}
static void ChangeScriptBreakPointConditionFromJS(int break_point_number,
const char* condition) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
OS::SNPrintF(buffer,
"debug.Debug.changeScriptBreakPointCondition(%d, \"%s\")",
break_point_number, condition);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
v8::Script::Compile(v8::String::New(buffer.start()))->Run();
}
static void ChangeScriptBreakPointIgnoreCountFromJS(int break_point_number,
int ignoreCount) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
OS::SNPrintF(buffer,
"debug.Debug.changeScriptBreakPointIgnoreCount(%d, %d)",
break_point_number, ignoreCount);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
v8::Script::Compile(v8::String::New(buffer.start()))->Run();
}
// Change break on exception.
static void ChangeBreakOnException(bool caught, bool uncaught) {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
debug->ChangeBreakOnException(v8::internal::BreakException, caught);
debug->ChangeBreakOnException(v8::internal::BreakUncaughtException, uncaught);
}
// Change break on exception using the global Debug object.
static void ChangeBreakOnExceptionFromJS(bool caught, bool uncaught) {
if (caught) {
v8::Script::Compile(
v8::String::New("debug.Debug.setBreakOnException()"))->Run();
} else {
v8::Script::Compile(
v8::String::New("debug.Debug.clearBreakOnException()"))->Run();
}
if (uncaught) {
v8::Script::Compile(
v8::String::New("debug.Debug.setBreakOnUncaughtException()"))->Run();
} else {
v8::Script::Compile(
v8::String::New("debug.Debug.clearBreakOnUncaughtException()"))->Run();
}
}
// Prepare to step to next break location.
static void PrepareStep(StepAction step_action) {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
debug->PrepareStep(step_action, 1);
}
// This function is in namespace v8::internal to be friend with class
// v8::internal::Debug.
namespace v8 {
namespace internal {
// Collect the currently debugged functions.
Handle<FixedArray> GetDebuggedFunctions() {
Debug* debug = Isolate::Current()->debug();
v8::internal::DebugInfoListNode* node = debug->debug_info_list_;
// Find the number of debugged functions.
int count = 0;
while (node) {
count++;
node = node->next();
}
// Allocate array for the debugged functions
Handle<FixedArray> debugged_functions =
FACTORY->NewFixedArray(count);
// Run through the debug info objects and collect all functions.
count = 0;
while (node) {
debugged_functions->set(count++, *node->debug_info());
node = node->next();
}
return debugged_functions;
}
static Handle<Code> ComputeCallDebugBreak(int argc) {
return Isolate::Current()->stub_cache()->ComputeCallDebugBreak(argc,
Code::CALL_IC);
}
// Check that the debugger has been fully unloaded.
void CheckDebuggerUnloaded(bool check_functions) {
// Check that the debugger context is cleared and that there is no debug
// information stored for the debugger.
CHECK(Isolate::Current()->debug()->debug_context().is_null());
CHECK_EQ(NULL, Isolate::Current()->debug()->debug_info_list_);
// Collect garbage to ensure weak handles are cleared.
HEAP->CollectAllGarbage(Heap::kNoGCFlags);
HEAP->CollectAllGarbage(Heap::kMakeHeapIterableMask);
// Iterate the head and check that there are no debugger related objects left.
HeapIterator iterator;
for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) {
CHECK(!obj->IsDebugInfo());
CHECK(!obj->IsBreakPointInfo());
// If deep check of functions is requested check that no debug break code
// is left in all functions.
if (check_functions) {
if (obj->IsJSFunction()) {
JSFunction* fun = JSFunction::cast(obj);
for (RelocIterator it(fun->shared()->code()); !it.done(); it.next()) {
RelocInfo::Mode rmode = it.rinfo()->rmode();
if (RelocInfo::IsCodeTarget(rmode)) {
CHECK(!Debug::IsDebugBreak(it.rinfo()->target_address()));
} else if (RelocInfo::IsJSReturn(rmode)) {
CHECK(!Debug::IsDebugBreakAtReturn(it.rinfo()));
}
}
}
}
}
}
void ForceUnloadDebugger() {
Isolate::Current()->debugger()->never_unload_debugger_ = false;
Isolate::Current()->debugger()->UnloadDebugger();
}
} } // namespace v8::internal
// Check that the debugger has been fully unloaded.
static void CheckDebuggerUnloaded(bool check_functions = false) {
// Let debugger to unload itself synchronously
v8::Debug::ProcessDebugMessages();
v8::internal::CheckDebuggerUnloaded(check_functions);
}
// Inherit from BreakLocationIterator to get access to protected parts for
// testing.
class TestBreakLocationIterator: public v8::internal::BreakLocationIterator {
public:
explicit TestBreakLocationIterator(Handle<v8::internal::DebugInfo> debug_info)
: BreakLocationIterator(debug_info, v8::internal::SOURCE_BREAK_LOCATIONS) {}
v8::internal::RelocIterator* it() { return reloc_iterator_; }
v8::internal::RelocIterator* it_original() {
return reloc_iterator_original_;
}
};
// Compile a function, set a break point and check that the call at the break
// location in the code is the expected debug_break function.
void CheckDebugBreakFunction(DebugLocalContext* env,
const char* source, const char* name,
int position, v8::internal::RelocInfo::Mode mode,
Code* debug_break) {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
// Create function and set the break point.
Handle<v8::internal::JSFunction> fun = v8::Utils::OpenHandle(
*CompileFunction(env, source, name));
int bp = SetBreakPoint(fun, position);
// Check that the debug break function is as expected.
Handle<v8::internal::SharedFunctionInfo> shared(fun->shared());
CHECK(Debug::HasDebugInfo(shared));
TestBreakLocationIterator it1(Debug::GetDebugInfo(shared));
it1.FindBreakLocationFromPosition(position);
v8::internal::RelocInfo::Mode actual_mode = it1.it()->rinfo()->rmode();
if (actual_mode == v8::internal::RelocInfo::CODE_TARGET_WITH_ID) {
actual_mode = v8::internal::RelocInfo::CODE_TARGET;
}
CHECK_EQ(mode, actual_mode);
if (mode != v8::internal::RelocInfo::JS_RETURN) {
CHECK_EQ(debug_break,
Code::GetCodeFromTargetAddress(it1.it()->rinfo()->target_address()));
} else {
CHECK(Debug::IsDebugBreakAtReturn(it1.it()->rinfo()));
}
// Clear the break point and check that the debug break function is no longer
// there
ClearBreakPoint(bp);
CHECK(!debug->HasDebugInfo(shared));
CHECK(debug->EnsureDebugInfo(shared));
TestBreakLocationIterator it2(Debug::GetDebugInfo(shared));
it2.FindBreakLocationFromPosition(position);
actual_mode = it2.it()->rinfo()->rmode();
if (actual_mode == v8::internal::RelocInfo::CODE_TARGET_WITH_ID) {
actual_mode = v8::internal::RelocInfo::CODE_TARGET;
}
CHECK_EQ(mode, actual_mode);
if (mode == v8::internal::RelocInfo::JS_RETURN) {
CHECK(!Debug::IsDebugBreakAtReturn(it2.it()->rinfo()));
}
}
// --- D e b u g E v e n t H a n d l e r s
// ---
// --- The different tests uses a number of debug event handlers.
// ---
// Source for the JavaScript function which picks out the function
// name of a frame.
const char* frame_function_name_source =
"function frame_function_name(exec_state, frame_number) {"
" return exec_state.frame(frame_number).func().name();"
"}";
v8::Local<v8::Function> frame_function_name;
// Source for the JavaScript function which pick out the name of the
// first argument of a frame.
const char* frame_argument_name_source =
"function frame_argument_name(exec_state, frame_number) {"
" return exec_state.frame(frame_number).argumentName(0);"
"}";
v8::Local<v8::Function> frame_argument_name;
// Source for the JavaScript function which pick out the value of the
// first argument of a frame.
const char* frame_argument_value_source =
"function frame_argument_value(exec_state, frame_number) {"
" return exec_state.frame(frame_number).argumentValue(0).value_;"
"}";
v8::Local<v8::Function> frame_argument_value;
// Source for the JavaScript function which pick out the name of the
// first argument of a frame.
const char* frame_local_name_source =
"function frame_local_name(exec_state, frame_number) {"
" return exec_state.frame(frame_number).localName(0);"
"}";
v8::Local<v8::Function> frame_local_name;
// Source for the JavaScript function which pick out the value of the
// first argument of a frame.
const char* frame_local_value_source =
"function frame_local_value(exec_state, frame_number) {"
" return exec_state.frame(frame_number).localValue(0).value_;"
"}";
v8::Local<v8::Function> frame_local_value;
// Source for the JavaScript function which picks out the source line for the
// top frame.
const char* frame_source_line_source =
"function frame_source_line(exec_state) {"
" return exec_state.frame(0).sourceLine();"
"}";
v8::Local<v8::Function> frame_source_line;
// Source for the JavaScript function which picks out the source column for the
// top frame.
const char* frame_source_column_source =
"function frame_source_column(exec_state) {"
" return exec_state.frame(0).sourceColumn();"
"}";
v8::Local<v8::Function> frame_source_column;
// Source for the JavaScript function which picks out the script name for the
// top frame.
const char* frame_script_name_source =
"function frame_script_name(exec_state) {"
" return exec_state.frame(0).func().script().name();"
"}";
v8::Local<v8::Function> frame_script_name;
// Source for the JavaScript function which picks out the script data for the
// top frame.
const char* frame_script_data_source =
"function frame_script_data(exec_state) {"
" return exec_state.frame(0).func().script().data();"
"}";
v8::Local<v8::Function> frame_script_data;
// Source for the JavaScript function which picks out the script data from
// AfterCompile event
const char* compiled_script_data_source =
"function compiled_script_data(event_data) {"
" return event_data.script().data();"
"}";
v8::Local<v8::Function> compiled_script_data;
// Source for the JavaScript function which returns the number of frames.
static const char* frame_count_source =
"function frame_count(exec_state) {"
" return exec_state.frameCount();"
"}";
v8::Handle<v8::Function> frame_count;
// Global variable to store the last function hit - used by some tests.
char last_function_hit[80];
// Global variable to store the name and data for last script hit - used by some
// tests.
char last_script_name_hit[80];
char last_script_data_hit[80];
// Global variables to store the last source position - used by some tests.
int last_source_line = -1;
int last_source_column = -1;
// Debug event handler which counts the break points which have been hit.
int break_point_hit_count = 0;
int break_point_hit_count_deoptimize = 0;
static void DebugEventBreakPointHitCount(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
Debug* debug = v8::internal::Isolate::Current()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
// Count the number of breaks.
if (event == v8::Break) {
break_point_hit_count++;
if (!frame_function_name.IsEmpty()) {
// Get the name of the function.
const int argc = 2;
v8::Handle<v8::Value> argv[argc] = { exec_state, v8::Integer::New(0) };
v8::Handle<v8::Value> result = frame_function_name->Call(exec_state,
argc, argv);
if (result->IsUndefined()) {
last_function_hit[0] = '\0';
} else {
CHECK(result->IsString());
v8::Handle<v8::String> function_name(result->ToString());
function_name->WriteAscii(last_function_hit);
}
}
if (!frame_source_line.IsEmpty()) {
// Get the source line.
const int argc = 1;
v8::Handle<v8::Value> argv[argc] = { exec_state };
v8::Handle<v8::Value> result = frame_source_line->Call(exec_state,
argc, argv);
CHECK(result->IsNumber());
last_source_line = result->Int32Value();
}
if (!frame_source_column.IsEmpty()) {
// Get the source column.
const int argc = 1;
v8::Handle<v8::Value> argv[argc] = { exec_state };
v8::Handle<v8::Value> result = frame_source_column->Call(exec_state,
argc, argv);
CHECK(result->IsNumber());
last_source_column = result->Int32Value();
}
if (!frame_script_name.IsEmpty()) {
// Get the script name of the function script.
const int argc = 1;
v8::Handle<v8::Value> argv[argc] = { exec_state };
v8::Handle<v8::Value> result = frame_script_name->Call(exec_state,
argc, argv);
if (result->IsUndefined()) {
last_script_name_hit[0] = '\0';
} else {
CHECK(result->IsString());
v8::Handle<v8::String> script_name(result->ToString());
script_name->WriteAscii(last_script_name_hit);
}
}
if (!frame_script_data.IsEmpty()) {
// Get the script data of the function script.
const int argc = 1;
v8::Handle<v8::Value> argv[argc] = { exec_state };
v8::Handle<v8::Value> result = frame_script_data->Call(exec_state,
argc, argv);
if (result->IsUndefined()) {
last_script_data_hit[0] = '\0';
} else {
result = result->ToString();
CHECK(result->IsString());
v8::Handle<v8::String> script_data(result->ToString());
script_data->WriteAscii(last_script_data_hit);
}
}
// Perform a full deoptimization when the specified number of
// breaks have been hit.
if (break_point_hit_count == break_point_hit_count_deoptimize) {
i::Deoptimizer::DeoptimizeAll();
}
} else if (event == v8::AfterCompile && !compiled_script_data.IsEmpty()) {
const int argc = 1;
v8::Handle<v8::Value> argv[argc] = { event_data };
v8::Handle<v8::Value> result = compiled_script_data->Call(exec_state,
argc, argv);
if (result->IsUndefined()) {
last_script_data_hit[0] = '\0';
} else {
result = result->ToString();
CHECK(result->IsString());
v8::Handle<v8::String> script_data(result->ToString());
script_data->WriteAscii(last_script_data_hit);
}
}
}
// Debug event handler which counts a number of events and collects the stack
// height if there is a function compiled for that.
int exception_hit_count = 0;
int uncaught_exception_hit_count = 0;
int last_js_stack_height = -1;
static void DebugEventCounterClear() {
break_point_hit_count = 0;
exception_hit_count = 0;
uncaught_exception_hit_count = 0;
}
static void DebugEventCounter(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
// Count the number of breaks.
if (event == v8::Break) {
break_point_hit_count++;
} else if (event == v8::Exception) {
exception_hit_count++;
// Check whether the exception was uncaught.
v8::Local<v8::String> fun_name = v8::String::New("uncaught");
v8::Local<v8::Function> fun =
v8::Function::Cast(*event_data->Get(fun_name));
v8::Local<v8::Value> result = *fun->Call(event_data, 0, NULL);
if (result->IsTrue()) {
uncaught_exception_hit_count++;
}
}
// Collect the JavsScript stack height if the function frame_count is
// compiled.
if (!frame_count.IsEmpty()) {
static const int kArgc = 1;
v8::Handle<v8::Value> argv[kArgc] = { exec_state };
// Using exec_state as receiver is just to have a receiver.
v8::Handle<v8::Value> result = frame_count->Call(exec_state, kArgc, argv);
last_js_stack_height = result->Int32Value();
}
}
// Debug event handler which evaluates a number of expressions when a break
// point is hit. Each evaluated expression is compared with an expected value.
// For this debug event handler to work the following two global varaibles
// must be initialized.
// checks: An array of expressions and expected results
// evaluate_check_function: A JavaScript function (see below)
// Structure for holding checks to do.
struct EvaluateCheck {
const char* expr; // An expression to evaluate when a break point is hit.
v8::Handle<v8::Value> expected; // The expected result.
};
// Array of checks to do.
struct EvaluateCheck* checks = NULL;
// Source for The JavaScript function which can do the evaluation when a break
// point is hit.
const char* evaluate_check_source =
"function evaluate_check(exec_state, expr, expected) {"
" return exec_state.frame(0).evaluate(expr).value() === expected;"
"}";
v8::Local<v8::Function> evaluate_check_function;
// The actual debug event described by the longer comment above.
static void DebugEventEvaluate(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
if (event == v8::Break) {
for (int i = 0; checks[i].expr != NULL; i++) {
const int argc = 3;
v8::Handle<v8::Value> argv[argc] = { exec_state,
v8::String::New(checks[i].expr),
checks[i].expected };
v8::Handle<v8::Value> result =
evaluate_check_function->Call(exec_state, argc, argv);
if (!result->IsTrue()) {
v8::String::AsciiValue ascii(checks[i].expected->ToString());
V8_Fatal(__FILE__, __LINE__, "%s != %s", checks[i].expr, *ascii);
}
}
}
}
// This debug event listener removes a breakpoint in a function
int debug_event_remove_break_point = 0;
static void DebugEventRemoveBreakPoint(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
if (event == v8::Break) {
break_point_hit_count++;
v8::Handle<v8::Function> fun(v8::Handle<v8::Function>::Cast(data));
ClearBreakPoint(debug_event_remove_break_point);
}
}
// Debug event handler which counts break points hit and performs a step
// afterwards.
StepAction step_action = StepIn; // Step action to perform when stepping.
static void DebugEventStep(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
if (event == v8::Break) {
break_point_hit_count++;
PrepareStep(step_action);
}
}
// Debug event handler which counts break points hit and performs a step
// afterwards. For each call the expected function is checked.
// For this debug event handler to work the following two global varaibles
// must be initialized.
// expected_step_sequence: An array of the expected function call sequence.
// frame_function_name: A JavaScript function (see below).
// String containing the expected function call sequence. Note: this only works
// if functions have name length of one.
const char* expected_step_sequence = NULL;
// The actual debug event described by the longer comment above.
static void DebugEventStepSequence(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
if (event == v8::Break || event == v8::Exception) {
// Check that the current function is the expected.
CHECK(break_point_hit_count <
StrLength(expected_step_sequence));
const int argc = 2;
v8::Handle<v8::Value> argv[argc] = { exec_state, v8::Integer::New(0) };
v8::Handle<v8::Value> result = frame_function_name->Call(exec_state,
argc, argv);
CHECK(result->IsString());
v8::String::AsciiValue function_name(result->ToString());
CHECK_EQ(1, StrLength(*function_name));
CHECK_EQ((*function_name)[0],
expected_step_sequence[break_point_hit_count]);
// Perform step.
break_point_hit_count++;
PrepareStep(step_action);
}
}
// Debug event handler which performs a garbage collection.
static void DebugEventBreakPointCollectGarbage(
v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
// Perform a garbage collection when break point is hit and continue. Based
// on the number of break points hit either scavenge or mark compact
// collector is used.
if (event == v8::Break) {
break_point_hit_count++;
if (break_point_hit_count % 2 == 0) {
// Scavenge.
HEAP->CollectGarbage(v8::internal::NEW_SPACE);
} else {
// Mark sweep compact.
HEAP->CollectAllGarbage(Heap::kNoGCFlags);
}
}
}
// Debug event handler which re-issues a debug break and calls the garbage
// collector to have the heap verified.
static void DebugEventBreak(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
if (event == v8::Break) {
// Count the number of breaks.
break_point_hit_count++;
// Run the garbage collector to enforce heap verification if option
// --verify-heap is set.
HEAP->CollectGarbage(v8::internal::NEW_SPACE);
// Set the break flag again to come back here as soon as possible.
v8::Debug::DebugBreak();
}
}
// Debug event handler which re-issues a debug break until a limit has been
// reached.
int max_break_point_hit_count = 0;
bool terminate_after_max_break_point_hit = false;
static void DebugEventBreakMax(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
if (event == v8::Break) {
if (break_point_hit_count < max_break_point_hit_count) {
// Count the number of breaks.
break_point_hit_count++;
// Collect the JavsScript stack height if the function frame_count is
// compiled.
if (!frame_count.IsEmpty()) {
static const int kArgc = 1;
v8::Handle<v8::Value> argv[kArgc] = { exec_state };
// Using exec_state as receiver is just to have a receiver.
v8::Handle<v8::Value> result =
frame_count->Call(exec_state, kArgc, argv);
last_js_stack_height = result->Int32Value();
}
// Set the break flag again to come back here as soon as possible.
v8::Debug::DebugBreak();
} else if (terminate_after_max_break_point_hit) {
// Terminate execution after the last break if requested.
v8::V8::TerminateExecution();
}
// Perform a full deoptimization when the specified number of
// breaks have been hit.
if (break_point_hit_count == break_point_hit_count_deoptimize) {
i::Deoptimizer::DeoptimizeAll();
}
}
}
// --- M e s s a g e C a l l b a c k
// Message callback which counts the number of messages.
int message_callback_count = 0;
static void MessageCallbackCountClear() {
message_callback_count = 0;
}
static void MessageCallbackCount(v8::Handle<v8::Message> message,
v8::Handle<v8::Value> data) {
message_callback_count++;
}
// --- T h e A c t u a l T e s t s
// Test that the debug break function is the expected one for different kinds
// of break locations.
TEST(DebugStub) {
using ::v8::internal::Builtins;
using ::v8::internal::Isolate;
v8::HandleScope scope;
DebugLocalContext env;
CheckDebugBreakFunction(&env,
"function f1(){}", "f1",
0,
v8::internal::RelocInfo::JS_RETURN,
NULL);
CheckDebugBreakFunction(&env,
"function f2(){x=1;}", "f2",
0,
v8::internal::RelocInfo::CODE_TARGET_CONTEXT,
Isolate::Current()->builtins()->builtin(
Builtins::kStoreIC_DebugBreak));
CheckDebugBreakFunction(&env,
"function f3(){var a=x;}", "f3",
0,
v8::internal::RelocInfo::CODE_TARGET_CONTEXT,
Isolate::Current()->builtins()->builtin(
Builtins::kLoadIC_DebugBreak));
// TODO(1240753): Make the test architecture independent or split
// parts of the debugger into architecture dependent files. This
// part currently disabled as it is not portable between IA32/ARM.
// Currently on ICs for keyed store/load on ARM.
#if !defined (__arm__) && !defined(__thumb__)
CheckDebugBreakFunction(
&env,
"function f4(){var index='propertyName'; var a={}; a[index] = 'x';}",
"f4",
0,
v8::internal::RelocInfo::CODE_TARGET,
Isolate::Current()->builtins()->builtin(
Builtins::kKeyedStoreIC_DebugBreak));
CheckDebugBreakFunction(
&env,
"function f5(){var index='propertyName'; var a={}; return a[index];}",
"f5",
0,
v8::internal::RelocInfo::CODE_TARGET,
Isolate::Current()->builtins()->builtin(
Builtins::kKeyedLoadIC_DebugBreak));
#endif
// Check the debug break code stubs for call ICs with different number of
// parameters.
Handle<Code> debug_break_0 = v8::internal::ComputeCallDebugBreak(0);
Handle<Code> debug_break_1 = v8::internal::ComputeCallDebugBreak(1);
Handle<Code> debug_break_4 = v8::internal::ComputeCallDebugBreak(4);
CheckDebugBreakFunction(&env,
"function f4_0(){x();}", "f4_0",
0,
v8::internal::RelocInfo::CODE_TARGET_CONTEXT,
*debug_break_0);
CheckDebugBreakFunction(&env,
"function f4_1(){x(1);}", "f4_1",
0,
v8::internal::RelocInfo::CODE_TARGET_CONTEXT,
*debug_break_1);
CheckDebugBreakFunction(&env,
"function f4_4(){x(1,2,3,4);}", "f4_4",
0,
v8::internal::RelocInfo::CODE_TARGET_CONTEXT,
*debug_break_4);
}
// Test that the debug info in the VM is in sync with the functions being
// debugged.
TEST(DebugInfo) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a couple of functions for the test.
v8::Local<v8::Function> foo =
CompileFunction(&env, "function foo(){}", "foo");
v8::Local<v8::Function> bar =
CompileFunction(&env, "function bar(){}", "bar");
// Initially no functions are debugged.
CHECK_EQ(0, v8::internal::GetDebuggedFunctions()->length());
CHECK(!HasDebugInfo(foo));
CHECK(!HasDebugInfo(bar));
// One function (foo) is debugged.
int bp1 = SetBreakPoint(foo, 0);
CHECK_EQ(1, v8::internal::GetDebuggedFunctions()->length());
CHECK(HasDebugInfo(foo));
CHECK(!HasDebugInfo(bar));
// Two functions are debugged.
int bp2 = SetBreakPoint(bar, 0);
CHECK_EQ(2, v8::internal::GetDebuggedFunctions()->length());
CHECK(HasDebugInfo(foo));
CHECK(HasDebugInfo(bar));
// One function (bar) is debugged.
ClearBreakPoint(bp1);
CHECK_EQ(1, v8::internal::GetDebuggedFunctions()->length());
CHECK(!HasDebugInfo(foo));
CHECK(HasDebugInfo(bar));
// No functions are debugged.
ClearBreakPoint(bp2);
CHECK_EQ(0, v8::internal::GetDebuggedFunctions()->length());
CHECK(!HasDebugInfo(foo));
CHECK(!HasDebugInfo(bar));
}
// Test that a break point can be set at an IC store location.
TEST(BreakPointICStore) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Script::Compile(v8::String::New("function foo(){bar=0;}"))->Run();
v8::Local<v8::Function> foo =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo")));
// Run without breakpoints.
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint
int bp = SetBreakPoint(foo, 0);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test that a break point can be set at an IC load location.
TEST(BreakPointICLoad) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Script::Compile(v8::String::New("bar=1"))->Run();
v8::Script::Compile(v8::String::New("function foo(){var x=bar;}"))->Run();
v8::Local<v8::Function> foo =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo")));
// Run without breakpoints.
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint.
int bp = SetBreakPoint(foo, 0);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test that a break point can be set at an IC call location.
TEST(BreakPointICCall) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Script::Compile(v8::String::New("function bar(){}"))->Run();
v8::Script::Compile(v8::String::New("function foo(){bar();}"))->Run();
v8::Local<v8::Function> foo =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo")));
// Run without breakpoints.
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint
int bp = SetBreakPoint(foo, 0);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test that a break point can be set at an IC call location and survive a GC.
TEST(BreakPointICCallWithGC) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetDebugEventListener(DebugEventBreakPointCollectGarbage,
v8::Undefined());
v8::Script::Compile(v8::String::New("function bar(){return 1;}"))->Run();
v8::Script::Compile(v8::String::New("function foo(){return bar();}"))->Run();
v8::Local<v8::Function> foo =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo")));
// Run without breakpoints.
CHECK_EQ(1, foo->Call(env->Global(), 0, NULL)->Int32Value());
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint.
int bp = SetBreakPoint(foo, 0);
CHECK_EQ(1, foo->Call(env->Global(), 0, NULL)->Int32Value());
CHECK_EQ(1, break_point_hit_count);
CHECK_EQ(1, foo->Call(env->Global(), 0, NULL)->Int32Value());
CHECK_EQ(2, break_point_hit_count);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test that a break point can be set at an IC call location and survive a GC.
TEST(BreakPointConstructCallWithGC) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetDebugEventListener(DebugEventBreakPointCollectGarbage,
v8::Undefined());
v8::Script::Compile(v8::String::New("function bar(){ this.x = 1;}"))->Run();
v8::Script::Compile(v8::String::New(
"function foo(){return new bar(1).x;}"))->Run();
v8::Local<v8::Function> foo =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo")));
// Run without breakpoints.
CHECK_EQ(1, foo->Call(env->Global(), 0, NULL)->Int32Value());
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint.
int bp = SetBreakPoint(foo, 0);
CHECK_EQ(1, foo->Call(env->Global(), 0, NULL)->Int32Value());
CHECK_EQ(1, break_point_hit_count);
CHECK_EQ(1, foo->Call(env->Global(), 0, NULL)->Int32Value());
CHECK_EQ(2, break_point_hit_count);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test that a break point can be set at a return store location.
TEST(BreakPointReturn) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
// Create a functions for checking the source line and column when hitting
// a break point.
frame_source_line = CompileFunction(&env,
frame_source_line_source,
"frame_source_line");
frame_source_column = CompileFunction(&env,
frame_source_column_source,
"frame_source_column");
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Script::Compile(v8::String::New("function foo(){}"))->Run();
v8::Local<v8::Function> foo =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo")));
// Run without breakpoints.
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint
int bp = SetBreakPoint(foo, 0);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
CHECK_EQ(0, last_source_line);
CHECK_EQ(15, last_source_column);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
CHECK_EQ(0, last_source_line);
CHECK_EQ(15, last_source_column);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
static void CallWithBreakPoints(v8::Local<v8::Object> recv,
v8::Local<v8::Function> f,
int break_point_count,
int call_count) {
break_point_hit_count = 0;
for (int i = 0; i < call_count; i++) {
f->Call(recv, 0, NULL);
CHECK_EQ((i + 1) * break_point_count, break_point_hit_count);
}
}
// Test GC during break point processing.
TEST(GCDuringBreakPointProcessing) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetDebugEventListener(DebugEventBreakPointCollectGarbage,
v8::Undefined());
v8::Local<v8::Function> foo;
// Test IC store break point with garbage collection.
foo = CompileFunction(&env, "function foo(){bar=0;}", "foo");
SetBreakPoint(foo, 0);
CallWithBreakPoints(env->Global(), foo, 1, 10);
// Test IC load break point with garbage collection.
foo = CompileFunction(&env, "bar=1;function foo(){var x=bar;}", "foo");
SetBreakPoint(foo, 0);
CallWithBreakPoints(env->Global(), foo, 1, 10);
// Test IC call break point with garbage collection.
foo = CompileFunction(&env, "function bar(){};function foo(){bar();}", "foo");
SetBreakPoint(foo, 0);
CallWithBreakPoints(env->Global(), foo, 1, 10);
// Test return break point with garbage collection.
foo = CompileFunction(&env, "function foo(){}", "foo");
SetBreakPoint(foo, 0);
CallWithBreakPoints(env->Global(), foo, 1, 25);
// Test debug break slot break point with garbage collection.
foo = CompileFunction(&env, "function foo(){var a;}", "foo");
SetBreakPoint(foo, 0);
CallWithBreakPoints(env->Global(), foo, 1, 25);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Call the function three times with different garbage collections in between
// and make sure that the break point survives.
static void CallAndGC(v8::Local<v8::Object> recv,
v8::Local<v8::Function> f) {
break_point_hit_count = 0;
for (int i = 0; i < 3; i++) {
// Call function.
f->Call(recv, 0, NULL);
CHECK_EQ(1 + i * 3, break_point_hit_count);
// Scavenge and call function.
HEAP->CollectGarbage(v8::internal::NEW_SPACE);
f->Call(recv, 0, NULL);
CHECK_EQ(2 + i * 3, break_point_hit_count);
// Mark sweep (and perhaps compact) and call function.
HEAP->CollectAllGarbage(Heap::kNoGCFlags);
f->Call(recv, 0, NULL);
CHECK_EQ(3 + i * 3, break_point_hit_count);
}
}
// Test that a break point can be set at a return store location.
TEST(BreakPointSurviveGC) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::Function> foo;
// Test IC store break point with garbage collection.
{
v8::Local<v8::Function> bar(
CompileFunction(&env, "function foo(){}", "foo"));
foo = CompileFunction(&env, "function foo(){bar=0;}", "foo");
SetBreakPoint(foo, 0);
}
CallAndGC(env->Global(), foo);
// Test IC load break point with garbage collection.
{
v8::Local<v8::Function> bar(
CompileFunction(&env, "function foo(){}", "foo"));
foo = CompileFunction(&env, "bar=1;function foo(){var x=bar;}", "foo");
SetBreakPoint(foo, 0);
}
CallAndGC(env->Global(), foo);
// Test IC call break point with garbage collection.
{
v8::Local<v8::Function> bar(
CompileFunction(&env, "function foo(){}", "foo"));
foo = CompileFunction(&env,
"function bar(){};function foo(){bar();}",
"foo");
SetBreakPoint(foo, 0);
}
CallAndGC(env->Global(), foo);
// Test return break point with garbage collection.
{
v8::Local<v8::Function> bar(
CompileFunction(&env, "function foo(){}", "foo"));
foo = CompileFunction(&env, "function foo(){}", "foo");
SetBreakPoint(foo, 0);
}
CallAndGC(env->Global(), foo);
// Test non IC break point with garbage collection.
{
v8::Local<v8::Function> bar(
CompileFunction(&env, "function foo(){}", "foo"));
foo = CompileFunction(&env, "function foo(){var bar=0;}", "foo");
SetBreakPoint(foo, 0);
}
CallAndGC(env->Global(), foo);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test that break points can be set using the global Debug object.
TEST(BreakPointThroughJavaScript) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Script::Compile(v8::String::New("function bar(){}"))->Run();
v8::Script::Compile(v8::String::New("function foo(){bar();bar();}"))->Run();
// 012345678901234567890
// 1 2
// Break points are set at position 3 and 9
v8::Local<v8::Script> foo = v8::Script::Compile(v8::String::New("foo()"));
// Run without breakpoints.
foo->Run();
CHECK_EQ(0, break_point_hit_count);
// Run with one breakpoint
int bp1 = SetBreakPointFromJS("foo", 0, 3);
foo->Run();
CHECK_EQ(1, break_point_hit_count);
foo->Run();
CHECK_EQ(2, break_point_hit_count);
// Run with two breakpoints
int bp2 = SetBreakPointFromJS("foo", 0, 9);
foo->Run();
CHECK_EQ(4, break_point_hit_count);
foo->Run();
CHECK_EQ(6, break_point_hit_count);
// Run with one breakpoint
ClearBreakPointFromJS(bp2);
foo->Run();
CHECK_EQ(7, break_point_hit_count);
foo->Run();
CHECK_EQ(8, break_point_hit_count);
// Run without breakpoints.
ClearBreakPointFromJS(bp1);
foo->Run();
CHECK_EQ(8, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
// Make sure that the break point numbers are consecutive.
CHECK_EQ(1, bp1);
CHECK_EQ(2, bp2);
}
// Test that break points on scripts identified by name can be set using the
// global Debug object.
TEST(ScriptBreakPointByNameThroughJavaScript) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::String> script = v8::String::New(
"function f() {\n"
" function h() {\n"
" a = 0; // line 2\n"
" }\n"
" b = 1; // line 4\n"
" return h();\n"
"}\n"
"\n"
"function g() {\n"
" function h() {\n"
" a = 0;\n"
" }\n"
" b = 2; // line 12\n"
" h();\n"
" b = 3; // line 14\n"
" f(); // line 15\n"
"}");
// Compile the script and get the two functions.
v8::ScriptOrigin origin =
v8::ScriptOrigin(v8::String::New("test"));
v8::Script::Compile(script, &origin)->Run();
v8::Local<v8::Function> f =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
v8::Local<v8::Function> g =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("g")));
// Call f and g without break points.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Call f and g with break point on line 12.
int sbp1 = SetScriptBreakPointByNameFromJS("test", 12, 0);
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
// Remove the break point again.
break_point_hit_count = 0;
ClearBreakPointFromJS(sbp1);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Call f and g with break point on line 2.
int sbp2 = SetScriptBreakPointByNameFromJS("test", 2, 0);
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Call f and g with break point on line 2, 4, 12, 14 and 15.
int sbp3 = SetScriptBreakPointByNameFromJS("test", 4, 0);
int sbp4 = SetScriptBreakPointByNameFromJS("test", 12, 0);
int sbp5 = SetScriptBreakPointByNameFromJS("test", 14, 0);
int sbp6 = SetScriptBreakPointByNameFromJS("test", 15, 0);
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(7, break_point_hit_count);
// Remove all the break points again.
break_point_hit_count = 0;
ClearBreakPointFromJS(sbp2);
ClearBreakPointFromJS(sbp3);
ClearBreakPointFromJS(sbp4);
ClearBreakPointFromJS(sbp5);
ClearBreakPointFromJS(sbp6);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
// Make sure that the break point numbers are consecutive.
CHECK_EQ(1, sbp1);
CHECK_EQ(2, sbp2);
CHECK_EQ(3, sbp3);
CHECK_EQ(4, sbp4);
CHECK_EQ(5, sbp5);
CHECK_EQ(6, sbp6);
}
TEST(ScriptBreakPointByIdThroughJavaScript) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::String> source = v8::String::New(
"function f() {\n"
" function h() {\n"
" a = 0; // line 2\n"
" }\n"
" b = 1; // line 4\n"
" return h();\n"
"}\n"
"\n"
"function g() {\n"
" function h() {\n"
" a = 0;\n"
" }\n"
" b = 2; // line 12\n"
" h();\n"
" b = 3; // line 14\n"
" f(); // line 15\n"
"}");
// Compile the script and get the two functions.
v8::ScriptOrigin origin =
v8::ScriptOrigin(v8::String::New("test"));
v8::Local<v8::Script> script = v8::Script::Compile(source, &origin);
script->Run();
v8::Local<v8::Function> f =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
v8::Local<v8::Function> g =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("g")));
// Get the script id knowing that internally it is a 32 integer.
uint32_t script_id = script->Id()->Uint32Value();
// Call f and g without break points.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Call f and g with break point on line 12.
int sbp1 = SetScriptBreakPointByIdFromJS(script_id, 12, 0);
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
// Remove the break point again.
break_point_hit_count = 0;
ClearBreakPointFromJS(sbp1);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Call f and g with break point on line 2.
int sbp2 = SetScriptBreakPointByIdFromJS(script_id, 2, 0);
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Call f and g with break point on line 2, 4, 12, 14 and 15.
int sbp3 = SetScriptBreakPointByIdFromJS(script_id, 4, 0);
int sbp4 = SetScriptBreakPointByIdFromJS(script_id, 12, 0);
int sbp5 = SetScriptBreakPointByIdFromJS(script_id, 14, 0);
int sbp6 = SetScriptBreakPointByIdFromJS(script_id, 15, 0);
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(7, break_point_hit_count);
// Remove all the break points again.
break_point_hit_count = 0;
ClearBreakPointFromJS(sbp2);
ClearBreakPointFromJS(sbp3);
ClearBreakPointFromJS(sbp4);
ClearBreakPointFromJS(sbp5);
ClearBreakPointFromJS(sbp6);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
// Make sure that the break point numbers are consecutive.
CHECK_EQ(1, sbp1);
CHECK_EQ(2, sbp2);
CHECK_EQ(3, sbp3);
CHECK_EQ(4, sbp4);
CHECK_EQ(5, sbp5);
CHECK_EQ(6, sbp6);
}
// Test conditional script break points.
TEST(EnableDisableScriptBreakPoint) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::String> script = v8::String::New(
"function f() {\n"
" a = 0; // line 1\n"
"};");
// Compile the script and get function f.
v8::ScriptOrigin origin =
v8::ScriptOrigin(v8::String::New("test"));
v8::Script::Compile(script, &origin)->Run();
v8::Local<v8::Function> f =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
// Set script break point on line 1 (in function f).
int sbp = SetScriptBreakPointByNameFromJS("test", 1, 0);
// Call f while enabeling and disabling the script break point.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
DisableScriptBreakPointFromJS(sbp);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
EnableScriptBreakPointFromJS(sbp);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
DisableScriptBreakPointFromJS(sbp);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Reload the script and get f again checking that the disabeling survives.
v8::Script::Compile(script, &origin)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
EnableScriptBreakPointFromJS(sbp);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(3, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test conditional script break points.
TEST(ConditionalScriptBreakPoint) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::String> script = v8::String::New(
"count = 0;\n"
"function f() {\n"
" g(count++); // line 2\n"
"};\n"
"function g(x) {\n"
" var a=x; // line 5\n"
"};");
// Compile the script and get function f.
v8::ScriptOrigin origin =
v8::ScriptOrigin(v8::String::New("test"));
v8::Script::Compile(script, &origin)->Run();
v8::Local<v8::Function> f =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
// Set script break point on line 5 (in function g).
int sbp1 = SetScriptBreakPointByNameFromJS("test", 5, 0);
// Call f with different conditions on the script break point.
break_point_hit_count = 0;
ChangeScriptBreakPointConditionFromJS(sbp1, "false");
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
ChangeScriptBreakPointConditionFromJS(sbp1, "true");
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
ChangeScriptBreakPointConditionFromJS(sbp1, "x % 2 == 0");
break_point_hit_count = 0;
for (int i = 0; i < 10; i++) {
f->Call(env->Global(), 0, NULL);
}
CHECK_EQ(5, break_point_hit_count);
// Reload the script and get f again checking that the condition survives.
v8::Script::Compile(script, &origin)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
break_point_hit_count = 0;
for (int i = 0; i < 10; i++) {
f->Call(env->Global(), 0, NULL);
}
CHECK_EQ(5, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test ignore count on script break points.
TEST(ScriptBreakPointIgnoreCount) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::String> script = v8::String::New(
"function f() {\n"
" a = 0; // line 1\n"
"};");
// Compile the script and get function f.
v8::ScriptOrigin origin =
v8::ScriptOrigin(v8::String::New("test"));
v8::Script::Compile(script, &origin)->Run();
v8::Local<v8::Function> f =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
// Set script break point on line 1 (in function f).
int sbp = SetScriptBreakPointByNameFromJS("test", 1, 0);
// Call f with different ignores on the script break point.
break_point_hit_count = 0;
ChangeScriptBreakPointIgnoreCountFromJS(sbp, 1);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
ChangeScriptBreakPointIgnoreCountFromJS(sbp, 5);
break_point_hit_count = 0;
for (int i = 0; i < 10; i++) {
f->Call(env->Global(), 0, NULL);
}
CHECK_EQ(5, break_point_hit_count);
// Reload the script and get f again checking that the ignore survives.
v8::Script::Compile(script, &origin)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
break_point_hit_count = 0;
for (int i = 0; i < 10; i++) {
f->Call(env->Global(), 0, NULL);
}
CHECK_EQ(5, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test that script break points survive when a script is reloaded.
TEST(ScriptBreakPointReload) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::Function> f;
v8::Local<v8::String> script = v8::String::New(
"function f() {\n"
" function h() {\n"
" a = 0; // line 2\n"
" }\n"
" b = 1; // line 4\n"
" return h();\n"
"}");
v8::ScriptOrigin origin_1 = v8::ScriptOrigin(v8::String::New("1"));
v8::ScriptOrigin origin_2 = v8::ScriptOrigin(v8::String::New("2"));
// Set a script break point before the script is loaded.
SetScriptBreakPointByNameFromJS("1", 2, 0);
// Compile the script and get the function.
v8::Script::Compile(script, &origin_1)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
// Call f and check that the script break point is active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
// Compile the script again with a different script data and get the
// function.
v8::Script::Compile(script, &origin_2)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
// Call f and check that no break points are set.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Compile the script again and get the function.
v8::Script::Compile(script, &origin_1)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
// Call f and check that the script break point is active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test when several scripts has the same script data
TEST(ScriptBreakPointMultiple) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::Function> f;
v8::Local<v8::String> script_f = v8::String::New(
"function f() {\n"
" a = 0; // line 1\n"
"}");
v8::Local<v8::Function> g;
v8::Local<v8::String> script_g = v8::String::New(
"function g() {\n"
" b = 0; // line 1\n"
"}");
v8::ScriptOrigin origin =
v8::ScriptOrigin(v8::String::New("test"));
// Set a script break point before the scripts are loaded.
int sbp = SetScriptBreakPointByNameFromJS("test", 1, 0);
// Compile the scripts with same script data and get the functions.
v8::Script::Compile(script_f, &origin)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
v8::Script::Compile(script_g, &origin)->Run();
g = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("g")));
// Call f and g and check that the script break point is active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Clear the script break point.
ClearBreakPointFromJS(sbp);
// Call f and g and check that the script break point is no longer active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Set script break point with the scripts loaded.
sbp = SetScriptBreakPointByNameFromJS("test", 1, 0);
// Call f and g and check that the script break point is active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test the script origin which has both name and line offset.
TEST(ScriptBreakPointLineOffset) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::Function> f;
v8::Local<v8::String> script = v8::String::New(
"function f() {\n"
" a = 0; // line 8 as this script has line offset 7\n"
" b = 0; // line 9 as this script has line offset 7\n"
"}");
// Create script origin both name and line offset.
v8::ScriptOrigin origin(v8::String::New("test.html"),
v8::Integer::New(7));
// Set two script break points before the script is loaded.
int sbp1 = SetScriptBreakPointByNameFromJS("test.html", 8, 0);
int sbp2 = SetScriptBreakPointByNameFromJS("test.html", 9, 0);
// Compile the script and get the function.
v8::Script::Compile(script, &origin)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
// Call f and check that the script break point is active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Clear the script break points.
ClearBreakPointFromJS(sbp1);
ClearBreakPointFromJS(sbp2);
// Call f and check that no script break points are active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Set a script break point with the script loaded.
sbp1 = SetScriptBreakPointByNameFromJS("test.html", 9, 0);
// Call f and check that the script break point is active.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test script break points set on lines.
TEST(ScriptBreakPointLine) {
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
// Create a function for checking the function when hitting a break point.
frame_function_name = CompileFunction(&env,
frame_function_name_source,
"frame_function_name");
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::Function> f;
v8::Local<v8::Function> g;
v8::Local<v8::String> script = v8::String::New(
"a = 0 // line 0\n"
"function f() {\n"
" a = 1; // line 2\n"
"}\n"
" a = 2; // line 4\n"
" /* xx */ function g() { // line 5\n"
" function h() { // line 6\n"
" a = 3; // line 7\n"
" }\n"
" h(); // line 9\n"
" a = 4; // line 10\n"
" }\n"
" a=5; // line 12");
// Set a couple script break point before the script is loaded.
int sbp1 = SetScriptBreakPointByNameFromJS("test.html", 0, -1);
int sbp2 = SetScriptBreakPointByNameFromJS("test.html", 1, -1);
int sbp3 = SetScriptBreakPointByNameFromJS("test.html", 5, -1);
// Compile the script and get the function.
break_point_hit_count = 0;
v8::ScriptOrigin origin(v8::String::New("test.html"), v8::Integer::New(0));
v8::Script::Compile(script, &origin)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
g = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("g")));
// Check that a break point was hit when the script was run.
CHECK_EQ(1, break_point_hit_count);
CHECK_EQ(0, StrLength(last_function_hit));
// Call f and check that the script break point.
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
CHECK_EQ("f", last_function_hit);
// Call g and check that the script break point.
g->Call(env->Global(), 0, NULL);
CHECK_EQ(3, break_point_hit_count);
CHECK_EQ("g", last_function_hit);
// Clear the script break point on g and set one on h.
ClearBreakPointFromJS(sbp3);
int sbp4 = SetScriptBreakPointByNameFromJS("test.html", 6, -1);
// Call g and check that the script break point in h is hit.
g->Call(env->Global(), 0, NULL);
CHECK_EQ(4, break_point_hit_count);
CHECK_EQ("h", last_function_hit);
// Clear break points in f and h. Set a new one in the script between
// functions f and g and test that there is no break points in f and g any
// more.
ClearBreakPointFromJS(sbp2);
ClearBreakPointFromJS(sbp4);
int sbp5 = SetScriptBreakPointByNameFromJS("test.html", 4, -1);
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
g->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Reload the script which should hit two break points.
break_point_hit_count = 0;
v8::Script::Compile(script, &origin)->Run();
CHECK_EQ(2, break_point_hit_count);
CHECK_EQ(0, StrLength(last_function_hit));
// Set a break point in the code after the last function decleration.
int sbp6 = SetScriptBreakPointByNameFromJS("test.html", 12, -1);
// Reload the script which should hit three break points.
break_point_hit_count = 0;
v8::Script::Compile(script, &origin)->Run();
CHECK_EQ(3, break_point_hit_count);
CHECK_EQ(0, StrLength(last_function_hit));
// Clear the last break points, and reload the script which should not hit any
// break points.
ClearBreakPointFromJS(sbp1);
ClearBreakPointFromJS(sbp5);
ClearBreakPointFromJS(sbp6);
break_point_hit_count = 0;
v8::Script::Compile(script, &origin)->Run();
CHECK_EQ(0, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test top level script break points set on lines.
TEST(ScriptBreakPointLineTopLevel) {
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::String> script = v8::String::New(
"function f() {\n"
" a = 1; // line 1\n"
"}\n"
"a = 2; // line 3\n");
v8::Local<v8::Function> f;
{
v8::HandleScope scope;
v8::Script::Compile(script, v8::String::New("test.html"))->Run();
}
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
HEAP->CollectAllGarbage(Heap::kNoGCFlags);
SetScriptBreakPointByNameFromJS("test.html", 3, -1);
// Call f and check that there was no break points.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Recompile and run script and check that break point was hit.
break_point_hit_count = 0;
v8::Script::Compile(script, v8::String::New("test.html"))->Run();
CHECK_EQ(1, break_point_hit_count);
// Call f and check that there are still no break points.
break_point_hit_count = 0;
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
CHECK_EQ(0, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test that it is possible to add and remove break points in a top level
// function which has no references but has not been collected yet.
TEST(ScriptBreakPointTopLevelCrash) {
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Local<v8::String> script_source = v8::String::New(
"function f() {\n"
" return 0;\n"
"}\n"
"f()");
int sbp1 = SetScriptBreakPointByNameFromJS("test.html", 3, -1);
{
v8::HandleScope scope;
break_point_hit_count = 0;
v8::Script::Compile(script_source, v8::String::New("test.html"))->Run();
CHECK_EQ(1, break_point_hit_count);
}
int sbp2 = SetScriptBreakPointByNameFromJS("test.html", 3, -1);
ClearBreakPointFromJS(sbp1);
ClearBreakPointFromJS(sbp2);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test that it is possible to remove the last break point for a function
// inside the break handling of that break point.
TEST(RemoveBreakPointInBreak) {
v8::HandleScope scope;
DebugLocalContext env;
v8::Local<v8::Function> foo =
CompileFunction(&env, "function foo(){a=1;}", "foo");
debug_event_remove_break_point = SetBreakPoint(foo, 0);
// Register the debug event listener pasing the function
v8::Debug::SetDebugEventListener(DebugEventRemoveBreakPoint, foo);
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test that the debugger statement causes a break.
TEST(DebuggerStatement) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Script::Compile(v8::String::New("function bar(){debugger}"))->Run();
v8::Script::Compile(v8::String::New(
"function foo(){debugger;debugger;}"))->Run();
v8::Local<v8::Function> foo =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo")));
v8::Local<v8::Function> bar =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("bar")));
// Run function with debugger statement
bar->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
// Run function with two debugger statement
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(3, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test setting a breakpoint on the debugger statement.
TEST(DebuggerStatementBreakpoint) {
break_point_hit_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
v8::Script::Compile(v8::String::New("function foo(){debugger;}"))->Run();
v8::Local<v8::Function> foo =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo")));
// The debugger statement triggers breakpint hit
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
int bp = SetBreakPoint(foo, 0);
// Set breakpoint does not duplicate hits
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
ClearBreakPoint(bp);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Thest that the evaluation of expressions when a break point is hit generates
// the correct results.
TEST(DebugEvaluate) {
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
// Create a function for checking the evaluation when hitting a break point.
evaluate_check_function = CompileFunction(&env,
evaluate_check_source,
"evaluate_check");
// Register the debug event listener
v8::Debug::SetDebugEventListener(DebugEventEvaluate);
// Different expected vaules of x and a when in a break point (u = undefined,
// d = Hello, world!).
struct EvaluateCheck checks_uu[] = {
{"x", v8::Undefined()},
{"a", v8::Undefined()},
{NULL, v8::Handle<v8::Value>()}
};
struct EvaluateCheck checks_hu[] = {
{"x", v8::String::New("Hello, world!")},
{"a", v8::Undefined()},
{NULL, v8::Handle<v8::Value>()}
};
struct EvaluateCheck checks_hh[] = {
{"x", v8::String::New("Hello, world!")},
{"a", v8::String::New("Hello, world!")},
{NULL, v8::Handle<v8::Value>()}
};
// Simple test function. The "y=0" is in the function foo to provide a break
// location. For "y=0" the "y" is at position 15 in the barbar function
// therefore setting breakpoint at position 15 will break at "y=0" and
// setting it higher will break after.
v8::Local<v8::Function> foo = CompileFunction(&env,
"function foo(x) {"
" var a;"
" y=0;" // To ensure break location 1.
" a=x;"
" y=0;" // To ensure break location 2.
"}",
"foo");
const int foo_break_position_1 = 15;
const int foo_break_position_2 = 29;
// Arguments with one parameter "Hello, world!"
v8::Handle<v8::Value> argv_foo[1] = { v8::String::New("Hello, world!") };
// Call foo with breakpoint set before a=x and undefined as parameter.
int bp = SetBreakPoint(foo, foo_break_position_1);
checks = checks_uu;
foo->Call(env->Global(), 0, NULL);
// Call foo with breakpoint set before a=x and parameter "Hello, world!".
checks = checks_hu;
foo->Call(env->Global(), 1, argv_foo);
// Call foo with breakpoint set after a=x and parameter "Hello, world!".
ClearBreakPoint(bp);
SetBreakPoint(foo, foo_break_position_2);
checks = checks_hh;
foo->Call(env->Global(), 1, argv_foo);
// Test function with an inner function. The "y=0" is in function barbar
// to provide a break location. For "y=0" the "y" is at position 8 in the
// barbar function therefore setting breakpoint at position 8 will break at
// "y=0" and setting it higher will break after.
v8::Local<v8::Function> bar = CompileFunction(&env,
"y = 0;"
"x = 'Goodbye, world!';"
"function bar(x, b) {"
" var a;"
" function barbar() {"
" y=0; /* To ensure break location.*/"
" a=x;"
" };"
" debug.Debug.clearAllBreakPoints();"
" barbar();"
" y=0;a=x;"
"}",
"bar");
const int barbar_break_position = 8;
// Call bar setting breakpoint before a=x in barbar and undefined as
// parameter.
checks = checks_uu;
v8::Handle<v8::Value> argv_bar_1[2] = {
v8::Undefined(),
v8::Number::New(barbar_break_position)
};
bar->Call(env->Global(), 2, argv_bar_1);
// Call bar setting breakpoint before a=x in barbar and parameter
// "Hello, world!".
checks = checks_hu;
v8::Handle<v8::Value> argv_bar_2[2] = {
v8::String::New("Hello, world!"),
v8::Number::New(barbar_break_position)
};
bar->Call(env->Global(), 2, argv_bar_2);
// Call bar setting breakpoint after a=x in barbar and parameter
// "Hello, world!".
checks = checks_hh;
v8::Handle<v8::Value> argv_bar_3[2] = {
v8::String::New("Hello, world!"),
v8::Number::New(barbar_break_position + 1)
};
bar->Call(env->Global(), 2, argv_bar_3);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Copies a C string to a 16-bit string. Does not check for buffer overflow.
// Does not use the V8 engine to convert strings, so it can be used
// in any thread. Returns the length of the string.
int AsciiToUtf16(const char* input_buffer, uint16_t* output_buffer) {
int i;
for (i = 0; input_buffer[i] != '\0'; ++i) {
// ASCII does not use chars > 127, but be careful anyway.
output_buffer[i] = static_cast<unsigned char>(input_buffer[i]);
}
output_buffer[i] = 0;
return i;
}
// Copies a 16-bit string to a C string by dropping the high byte of
// each character. Does not check for buffer overflow.
// Can be used in any thread. Requires string length as an input.
int Utf16ToAscii(const uint16_t* input_buffer, int length,
char* output_buffer, int output_len = -1) {
if (output_len >= 0) {
if (length > output_len - 1) {
length = output_len - 1;
}
}
for (int i = 0; i < length; ++i) {
output_buffer[i] = static_cast<char>(input_buffer[i]);
}
output_buffer[length] = '\0';
return length;
}
// We match parts of the message to get evaluate result int value.
bool GetEvaluateStringResult(char *message, char* buffer, int buffer_size) {
if (strstr(message, "\"command\":\"evaluate\"") == NULL) {
return false;
}
const char* prefix = "\"text\":\"";
char* pos1 = strstr(message, prefix);
if (pos1 == NULL) {
return false;
}
pos1 += strlen(prefix);
char* pos2 = strchr(pos1, '"');
if (pos2 == NULL) {
return false;
}
Vector<char> buf(buffer, buffer_size);
int len = static_cast<int>(pos2 - pos1);
if (len > buffer_size - 1) {
len = buffer_size - 1;
}
OS::StrNCpy(buf, pos1, len);
buffer[buffer_size - 1] = '\0';
return true;
}
struct EvaluateResult {
static const int kBufferSize = 20;
char buffer[kBufferSize];
};
struct DebugProcessDebugMessagesData {
static const int kArraySize = 5;
int counter;
EvaluateResult results[kArraySize];
void reset() {
counter = 0;
}
EvaluateResult* current() {
return &results[counter % kArraySize];
}
void next() {
counter++;
}
};
DebugProcessDebugMessagesData process_debug_messages_data;
static void DebugProcessDebugMessagesHandler(
const uint16_t* message,
int length,
v8::Debug::ClientData* client_data) {
const int kBufferSize = 100000;
char print_buffer[kBufferSize];
Utf16ToAscii(message, length, print_buffer, kBufferSize);
EvaluateResult* array_item = process_debug_messages_data.current();
bool res = GetEvaluateStringResult(print_buffer,
array_item->buffer,
EvaluateResult::kBufferSize);
if (res) {
process_debug_messages_data.next();
}
}
// Test that the evaluation of expressions works even from ProcessDebugMessages
// i.e. with empty stack.
TEST(DebugEvaluateWithoutStack) {
v8::Debug::SetMessageHandler(DebugProcessDebugMessagesHandler);
v8::HandleScope scope;
DebugLocalContext env;
const char* source =
"var v1 = 'Pinguin';\n function getAnimal() { return 'Capy' + 'bara'; }";
v8::Script::Compile(v8::String::New(source))->Run();
v8::Debug::ProcessDebugMessages();
const int kBufferSize = 1000;
uint16_t buffer[kBufferSize];
const char* command_111 = "{\"seq\":111,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{"
" \"global\":true,"
" \"expression\":\"v1\",\"disable_break\":true"
"}}";
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_111, buffer));
const char* command_112 = "{\"seq\":112,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{"
" \"global\":true,"
" \"expression\":\"getAnimal()\",\"disable_break\":true"
"}}";
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_112, buffer));
const char* command_113 = "{\"seq\":113,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{"
" \"global\":true,"
" \"expression\":\"239 + 566\",\"disable_break\":true"
"}}";
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_113, buffer));
v8::Debug::ProcessDebugMessages();
CHECK_EQ(3, process_debug_messages_data.counter);
CHECK_EQ(strcmp("Pinguin", process_debug_messages_data.results[0].buffer), 0);
CHECK_EQ(strcmp("Capybara", process_debug_messages_data.results[1].buffer),
0);
CHECK_EQ(strcmp("805", process_debug_messages_data.results[2].buffer), 0);
v8::Debug::SetMessageHandler(NULL);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Simple test of the stepping mechanism using only store ICs.
TEST(DebugStepLinear) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for testing stepping.
v8::Local<v8::Function> foo = CompileFunction(&env,
"function foo(){a=1;b=1;c=1;}",
"foo");
// Run foo to allow it to get optimized.
CompileRun("a=0; b=0; c=0; foo();");
SetBreakPoint(foo, 3);
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// With stepping all break locations are hit.
CHECK_EQ(4, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
// Register a debug event listener which just counts.
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount);
SetBreakPoint(foo, 3);
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// Without stepping only active break points are hit.
CHECK_EQ(1, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test of the stepping mechanism for keyed load in a loop.
TEST(DebugStepKeyedLoadLoop) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping of keyed load. The statement 'y=1'
// is there to have more than one breakable statement in the loop, TODO(315).
v8::Local<v8::Function> foo = CompileFunction(
&env,
"function foo(a) {\n"
" var x;\n"
" var len = a.length;\n"
" for (var i = 0; i < len; i++) {\n"
" y = 1;\n"
" x = a[i];\n"
" }\n"
"}\n"
"y=0\n",
"foo");
// Create array [0,1,2,3,4,5,6,7,8,9]
v8::Local<v8::Array> a = v8::Array::New(10);
for (int i = 0; i < 10; i++) {
a->Set(v8::Number::New(i), v8::Number::New(i));
}
// Call function without any break points to ensure inlining is in place.
const int kArgc = 1;
v8::Handle<v8::Value> args[kArgc] = { a };
foo->Call(env->Global(), kArgc, args);
// Setup break point and step through the function.
SetBreakPoint(foo, 3);
step_action = StepNext;
break_point_hit_count = 0;
foo->Call(env->Global(), kArgc, args);
// With stepping all break locations are hit.
CHECK_EQ(33, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test of the stepping mechanism for keyed store in a loop.
TEST(DebugStepKeyedStoreLoop) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping of keyed store. The statement 'y=1'
// is there to have more than one breakable statement in the loop, TODO(315).
v8::Local<v8::Function> foo = CompileFunction(
&env,
"function foo(a) {\n"
" var len = a.length;\n"
" for (var i = 0; i < len; i++) {\n"
" y = 1;\n"
" a[i] = 42;\n"
" }\n"
"}\n"
"y=0\n",
"foo");
// Create array [0,1,2,3,4,5,6,7,8,9]
v8::Local<v8::Array> a = v8::Array::New(10);
for (int i = 0; i < 10; i++) {
a->Set(v8::Number::New(i), v8::Number::New(i));
}
// Call function without any break points to ensure inlining is in place.
const int kArgc = 1;
v8::Handle<v8::Value> args[kArgc] = { a };
foo->Call(env->Global(), kArgc, args);
// Setup break point and step through the function.
SetBreakPoint(foo, 3);
step_action = StepNext;
break_point_hit_count = 0;
foo->Call(env->Global(), kArgc, args);
// With stepping all break locations are hit.
CHECK_EQ(32, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test of the stepping mechanism for named load in a loop.
TEST(DebugStepNamedLoadLoop) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping of named load.
v8::Local<v8::Function> foo = CompileFunction(
&env,
"function foo() {\n"
" var a = [];\n"
" var s = \"\";\n"
" for (var i = 0; i < 10; i++) {\n"
" var v = new V(i, i + 1);\n"
" v.y;\n"
" a.length;\n" // Special case: array length.
" s.length;\n" // Special case: string length.
" }\n"
"}\n"
"function V(x, y) {\n"
" this.x = x;\n"
" this.y = y;\n"
"}\n",
"foo");
// Call function without any break points to ensure inlining is in place.
foo->Call(env->Global(), 0, NULL);
// Setup break point and step through the function.
SetBreakPoint(foo, 4);
step_action = StepNext;
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// With stepping all break locations are hit.
CHECK_EQ(53, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
static void DoDebugStepNamedStoreLoop(int expected) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping of named store.
v8::Local<v8::Function> foo = CompileFunction(
&env,
"function foo() {\n"
" var a = {a:1};\n"
" for (var i = 0; i < 10; i++) {\n"
" a.a = 2\n"
" }\n"
"}\n",
"foo");
// Call function without any break points to ensure inlining is in place.
foo->Call(env->Global(), 0, NULL);
// Setup break point and step through the function.
SetBreakPoint(foo, 3);
step_action = StepNext;
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// With stepping all expected break locations are hit.
CHECK_EQ(expected, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test of the stepping mechanism for named load in a loop.
TEST(DebugStepNamedStoreLoop) {
DoDebugStepNamedStoreLoop(22);
}
// Test the stepping mechanism with different ICs.
TEST(DebugStepLinearMixedICs) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping.
v8::Local<v8::Function> foo = CompileFunction(&env,
"function bar() {};"
"function foo() {"
" var x;"
" var index='name';"
" var y = {};"
" a=1;b=2;x=a;y[index]=3;x=y[index];bar();}", "foo");
// Run functions to allow them to get optimized.
CompileRun("a=0; b=0; bar(); foo();");
SetBreakPoint(foo, 0);
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// With stepping all break locations are hit.
CHECK_EQ(11, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
// Register a debug event listener which just counts.
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount);
SetBreakPoint(foo, 0);
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// Without stepping only active break points are hit.
CHECK_EQ(1, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
TEST(DebugStepDeclarations) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const char* src = "function foo() { "
" var a;"
" var b = 1;"
" var c = foo;"
" var d = Math.floor;"
" var e = b + d(1.2);"
"}"
"foo()";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 0);
// Stepping through the declarations.
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(6, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
TEST(DebugStepLocals) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const char* src = "function foo() { "
" var a,b;"
" a = 1;"
" b = a + 2;"
" b = 1 + 2 + 3;"
" a = Math.floor(b);"
"}"
"foo()";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 0);
// Stepping through the declarations.
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(6, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
TEST(DebugStepIf) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const int argc = 1;
const char* src = "function foo(x) { "
" a = 1;"
" if (x) {"
" b = 1;"
" } else {"
" c = 1;"
" d = 1;"
" }"
"}"
"a=0; b=0; c=0; d=0; foo()";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 0);
// Stepping through the true part.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_true[argc] = { v8::True() };
foo->Call(env->Global(), argc, argv_true);
CHECK_EQ(4, break_point_hit_count);
// Stepping through the false part.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_false[argc] = { v8::False() };
foo->Call(env->Global(), argc, argv_false);
CHECK_EQ(5, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
TEST(DebugStepSwitch) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const int argc = 1;
const char* src = "function foo(x) { "
" a = 1;"
" switch (x) {"
" case 1:"
" b = 1;"
" case 2:"
" c = 1;"
" break;"
" case 3:"
" d = 1;"
" e = 1;"
" f = 1;"
" break;"
" }"
"}"
"a=0; b=0; c=0; d=0; e=0; f=0; foo()";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 0);
// One case with fall-through.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_1[argc] = { v8::Number::New(1) };
foo->Call(env->Global(), argc, argv_1);
CHECK_EQ(6, break_point_hit_count);
// Another case.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_2[argc] = { v8::Number::New(2) };
foo->Call(env->Global(), argc, argv_2);
CHECK_EQ(5, break_point_hit_count);
// Last case.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_3[argc] = { v8::Number::New(3) };
foo->Call(env->Global(), argc, argv_3);
CHECK_EQ(7, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
TEST(DebugStepWhile) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const int argc = 1;
const char* src = "function foo(x) { "
" var a = 0;"
" while (a < x) {"
" a++;"
" }"
"}"
"foo()";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 8); // "var a = 0;"
// Looping 10 times.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_10[argc] = { v8::Number::New(10) };
foo->Call(env->Global(), argc, argv_10);
CHECK_EQ(22, break_point_hit_count);
// Looping 100 times.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_100[argc] = { v8::Number::New(100) };
foo->Call(env->Global(), argc, argv_100);
CHECK_EQ(202, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
TEST(DebugStepDoWhile) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const int argc = 1;
const char* src = "function foo(x) { "
" var a = 0;"
" do {"
" a++;"
" } while (a < x)"
"}"
"foo()";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 8); // "var a = 0;"
// Looping 10 times.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_10[argc] = { v8::Number::New(10) };
foo->Call(env->Global(), argc, argv_10);
CHECK_EQ(22, break_point_hit_count);
// Looping 100 times.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_100[argc] = { v8::Number::New(100) };
foo->Call(env->Global(), argc, argv_100);
CHECK_EQ(202, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
TEST(DebugStepFor) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const int argc = 1;
const char* src = "function foo(x) { "
" a = 1;"
" for (i = 0; i < x; i++) {"
" b = 1;"
" }"
"}"
"a=0; b=0; i=0; foo()";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 8); // "a = 1;"
// Looping 10 times.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_10[argc] = { v8::Number::New(10) };
foo->Call(env->Global(), argc, argv_10);
CHECK_EQ(23, break_point_hit_count);
// Looping 100 times.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_100[argc] = { v8::Number::New(100) };
foo->Call(env->Global(), argc, argv_100);
CHECK_EQ(203, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
TEST(DebugStepForContinue) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const int argc = 1;
const char* src = "function foo(x) { "
" var a = 0;"
" var b = 0;"
" var c = 0;"
" for (var i = 0; i < x; i++) {"
" a++;"
" if (a % 2 == 0) continue;"
" b++;"
" c++;"
" }"
" return b;"
"}"
"foo()";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
v8::Handle<v8::Value> result;
SetBreakPoint(foo, 8); // "var a = 0;"
// Each loop generates 4 or 5 steps depending on whether a is equal.
// Looping 10 times.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_10[argc] = { v8::Number::New(10) };
result = foo->Call(env->Global(), argc, argv_10);
CHECK_EQ(5, result->Int32Value());
CHECK_EQ(50, break_point_hit_count);
// Looping 100 times.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_100[argc] = { v8::Number::New(100) };
result = foo->Call(env->Global(), argc, argv_100);
CHECK_EQ(50, result->Int32Value());
CHECK_EQ(455, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
TEST(DebugStepForBreak) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const int argc = 1;
const char* src = "function foo(x) { "
" var a = 0;"
" var b = 0;"
" var c = 0;"
" for (var i = 0; i < 1000; i++) {"
" a++;"
" if (a == x) break;"
" b++;"
" c++;"
" }"
" return b;"
"}"
"foo()";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
v8::Handle<v8::Value> result;
SetBreakPoint(foo, 8); // "var a = 0;"
// Each loop generates 5 steps except for the last (when break is executed)
// which only generates 4.
// Looping 10 times.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_10[argc] = { v8::Number::New(10) };
result = foo->Call(env->Global(), argc, argv_10);
CHECK_EQ(9, result->Int32Value());
CHECK_EQ(53, break_point_hit_count);
// Looping 100 times.
step_action = StepIn;
break_point_hit_count = 0;
v8::Handle<v8::Value> argv_100[argc] = { v8::Number::New(100) };
result = foo->Call(env->Global(), argc, argv_100);
CHECK_EQ(99, result->Int32Value());
CHECK_EQ(503, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
TEST(DebugStepForIn) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
v8::Local<v8::Function> foo;
const char* src_1 = "function foo() { "
" var a = [1, 2];"
" for (x in a) {"
" b = 0;"
" }"
"}"
"foo()";
foo = CompileFunction(&env, src_1, "foo");
SetBreakPoint(foo, 0); // "var a = ..."
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(6, break_point_hit_count);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const char* src_2 = "function foo() { "
" var a = {a:[1, 2, 3]};"
" for (x in a.a) {"
" b = 0;"
" }"
"}"
"foo()";
foo = CompileFunction(&env, src_2, "foo");
SetBreakPoint(foo, 0); // "var a = ..."
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(8, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
TEST(DebugStepWith) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const char* src = "function foo(x) { "
" var a = {};"
" with (a) {}"
" with (b) {}"
"}"
"foo()";
env->Global()->Set(v8::String::New("b"), v8::Object::New());
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
v8::Handle<v8::Value> result;
SetBreakPoint(foo, 8); // "var a = {};"
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(4, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
TEST(DebugConditional) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const char* src = "function foo(x) { "
" var a;"
" a = x ? 1 : 2;"
" return a;"
"}"
"foo()";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 0); // "var a;"
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(5, break_point_hit_count);
step_action = StepIn;
break_point_hit_count = 0;
const int argc = 1;
v8::Handle<v8::Value> argv_true[argc] = { v8::True() };
foo->Call(env->Global(), argc, argv_true);
CHECK_EQ(5, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
TEST(StepInOutSimple) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for checking the function when hitting a break point.
frame_function_name = CompileFunction(&env,
frame_function_name_source,
"frame_function_name");
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStepSequence);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const char* src = "function a() {b();c();}; "
"function b() {c();}; "
"function c() {}; "
"a(); b(); c()";
v8::Local<v8::Function> a = CompileFunction(&env, src, "a");
SetBreakPoint(a, 0);
// Step through invocation of a with step in.
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "abcbaca";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(StrLength(expected_step_sequence),
break_point_hit_count);
// Step through invocation of a with step next.
step_action = StepNext;
break_point_hit_count = 0;
expected_step_sequence = "aaa";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(StrLength(expected_step_sequence),
break_point_hit_count);
// Step through invocation of a with step out.
step_action = StepOut;
break_point_hit_count = 0;
expected_step_sequence = "a";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(StrLength(expected_step_sequence),
break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
TEST(StepInOutTree) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for checking the function when hitting a break point.
frame_function_name = CompileFunction(&env,
frame_function_name_source,
"frame_function_name");
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStepSequence);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const char* src = "function a() {b(c(d()),d());c(d());d()}; "
"function b(x,y) {c();}; "
"function c(x) {}; "
"function d() {}; "
"a(); b(); c(); d()";
v8::Local<v8::Function> a = CompileFunction(&env, src, "a");
SetBreakPoint(a, 0);
// Step through invocation of a with step in.
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "adacadabcbadacada";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(StrLength(expected_step_sequence),
break_point_hit_count);
// Step through invocation of a with step next.
step_action = StepNext;
break_point_hit_count = 0;
expected_step_sequence = "aaaa";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(StrLength(expected_step_sequence),
break_point_hit_count);
// Step through invocation of a with step out.
step_action = StepOut;
break_point_hit_count = 0;
expected_step_sequence = "a";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(StrLength(expected_step_sequence),
break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded(true);
}
TEST(StepInOutBranch) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for checking the function when hitting a break point.
frame_function_name = CompileFunction(&env,
frame_function_name_source,
"frame_function_name");
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStepSequence);
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const char* src = "function a() {b(false);c();}; "
"function b(x) {if(x){c();};}; "
"function c() {}; "
"a(); b(); c()";
v8::Local<v8::Function> a = CompileFunction(&env, src, "a");
SetBreakPoint(a, 0);
// Step through invocation of a.
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "abbaca";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(StrLength(expected_step_sequence),
break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test that step in does not step into native functions.
TEST(DebugStepNatives) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for testing stepping.
v8::Local<v8::Function> foo = CompileFunction(
&env,
"function foo(){debugger;Math.sin(1);}",
"foo");
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// With stepping all break locations are hit.
CHECK_EQ(3, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
// Register a debug event listener which just counts.
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount);
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// Without stepping only active break points are hit.
CHECK_EQ(1, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test that step in works with function.apply.
TEST(DebugStepFunctionApply) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for testing stepping.
v8::Local<v8::Function> foo = CompileFunction(
&env,
"function bar(x, y, z) { if (x == 1) { a = y; b = z; } }"
"function foo(){ debugger; bar.apply(this, [1,2,3]); }",
"foo");
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// With stepping all break locations are hit.
CHECK_EQ(7, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
// Register a debug event listener which just counts.
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount);
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// Without stepping only the debugger statement is hit.
CHECK_EQ(1, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test that step in works with function.call.
TEST(DebugStepFunctionCall) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for testing stepping.
v8::Local<v8::Function> foo = CompileFunction(
&env,
"function bar(x, y, z) { if (x == 1) { a = y; b = z; } }"
"function foo(a){ debugger;"
" if (a) {"
" bar.call(this, 1, 2, 3);"
" } else {"
" bar.call(this, 0);"
" }"
"}",
"foo");
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStep);
step_action = StepIn;
// Check stepping where the if condition in bar is false.
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(6, break_point_hit_count);
// Check stepping where the if condition in bar is true.
break_point_hit_count = 0;
const int argc = 1;
v8::Handle<v8::Value> argv[argc] = { v8::True() };
foo->Call(env->Global(), argc, argv);
CHECK_EQ(8, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
// Register a debug event listener which just counts.
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount);
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
// Without stepping only the debugger statement is hit.
CHECK_EQ(1, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Tests that breakpoint will be hit if it's set in script.
TEST(PauseInScript) {
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
// Register a debug event listener which counts.
v8::Debug::SetDebugEventListener(DebugEventCounter);
// Create a script that returns a function.
const char* src = "(function (evt) {})";
const char* script_name = "StepInHandlerTest";
// Set breakpoint in the script.
SetScriptBreakPointByNameFromJS(script_name, 0, -1);
break_point_hit_count = 0;
v8::ScriptOrigin origin(v8::String::New(script_name), v8::Integer::New(0));
v8::Handle<v8::Script> script = v8::Script::Compile(v8::String::New(src),
&origin);
v8::Local<v8::Value> r = script->Run();
CHECK(r->IsFunction());
CHECK_EQ(1, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test break on exceptions. For each exception break combination the number
// of debug event exception callbacks and message callbacks are collected. The
// number of debug event exception callbacks are used to check that the
// debugger is called correctly and the number of message callbacks is used to
// check that uncaught exceptions are still returned even if there is a break
// for them.
TEST(BreakOnException) {
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::internal::Isolate::Current()->TraceException(false);
// Create functions for testing break on exception.
v8::Local<v8::Function> throws(
CompileFunction(&env, "function throws(){throw 1;}", "throws"));
v8::Local<v8::Function> caught =
CompileFunction(&env,
"function caught(){try {throws();} catch(e) {};}",
"caught");
v8::Local<v8::Function> notCaught =
CompileFunction(&env, "function notCaught(){throws();}", "notCaught");
v8::V8::AddMessageListener(MessageCallbackCount);
v8::Debug::SetDebugEventListener(DebugEventCounter);
// Initial state should be no break on exceptions.
DebugEventCounterClear();
MessageCallbackCountClear();
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// No break on exception
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnException(false, false);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// Break on uncaught exception
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnException(false, true);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(1, exception_hit_count);
CHECK_EQ(1, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// Break on exception and uncaught exception
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnException(true, true);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(1, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(2, exception_hit_count);
CHECK_EQ(1, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// Break on exception
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnException(true, false);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(1, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(2, exception_hit_count);
CHECK_EQ(1, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// No break on exception using JavaScript
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnExceptionFromJS(false, false);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// Break on uncaught exception using JavaScript
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnExceptionFromJS(false, true);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(1, exception_hit_count);
CHECK_EQ(1, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// Break on exception and uncaught exception using JavaScript
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnExceptionFromJS(true, true);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(1, exception_hit_count);
CHECK_EQ(0, message_callback_count);
CHECK_EQ(0, uncaught_exception_hit_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(2, exception_hit_count);
CHECK_EQ(1, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
// Break on exception using JavaScript
DebugEventCounterClear();
MessageCallbackCountClear();
ChangeBreakOnExceptionFromJS(true, false);
caught->Call(env->Global(), 0, NULL);
CHECK_EQ(1, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
notCaught->Call(env->Global(), 0, NULL);
CHECK_EQ(2, exception_hit_count);
CHECK_EQ(1, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
v8::V8::RemoveMessageListeners(MessageCallbackCount);
}
// Test break on exception from compiler errors. When compiling using
// v8::Script::Compile there is no JavaScript stack whereas when compiling using
// eval there are JavaScript frames.
TEST(BreakOnCompileException) {
v8::HandleScope scope;
DebugLocalContext env;
// For this test, we want to break on uncaught exceptions:
ChangeBreakOnException(false, true);
v8::internal::Isolate::Current()->TraceException(false);
// Create a function for checking the function when hitting a break point.
frame_count = CompileFunction(&env, frame_count_source, "frame_count");
v8::V8::AddMessageListener(MessageCallbackCount);
v8::Debug::SetDebugEventListener(DebugEventCounter);
DebugEventCounterClear();
MessageCallbackCountClear();
// Check initial state.
CHECK_EQ(0, exception_hit_count);
CHECK_EQ(0, uncaught_exception_hit_count);
CHECK_EQ(0, message_callback_count);
CHECK_EQ(-1, last_js_stack_height);
// Throws SyntaxError: Unexpected end of input
v8::Script::Compile(v8::String::New("+++"));
CHECK_EQ(1, exception_hit_count);
CHECK_EQ(1, uncaught_exception_hit_count);
CHECK_EQ(1, message_callback_count);
CHECK_EQ(0, last_js_stack_height); // No JavaScript stack.
// Throws SyntaxError: Unexpected identifier
v8::Script::Compile(v8::String::New("x x"));
CHECK_EQ(2, exception_hit_count);
CHECK_EQ(2, uncaught_exception_hit_count);
CHECK_EQ(2, message_callback_count);
CHECK_EQ(0, last_js_stack_height); // No JavaScript stack.
// Throws SyntaxError: Unexpected end of input
v8::Script::Compile(v8::String::New("eval('+++')"))->Run();
CHECK_EQ(3, exception_hit_count);
CHECK_EQ(3, uncaught_exception_hit_count);
CHECK_EQ(3, message_callback_count);
CHECK_EQ(1, last_js_stack_height);
// Throws SyntaxError: Unexpected identifier
v8::Script::Compile(v8::String::New("eval('x x')"))->Run();
CHECK_EQ(4, exception_hit_count);
CHECK_EQ(4, uncaught_exception_hit_count);
CHECK_EQ(4, message_callback_count);
CHECK_EQ(1, last_js_stack_height);
}
TEST(StepWithException) {
v8::HandleScope scope;
DebugLocalContext env;
// For this test, we want to break on uncaught exceptions:
ChangeBreakOnException(false, true);
// Create a function for checking the function when hitting a break point.
frame_function_name = CompileFunction(&env,
frame_function_name_source,
"frame_function_name");
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventStepSequence);
// Create functions for testing stepping.
const char* src = "function a() { n(); }; "
"function b() { c(); }; "
"function c() { n(); }; "
"function d() { x = 1; try { e(); } catch(x) { x = 2; } }; "
"function e() { n(); }; "
"function f() { x = 1; try { g(); } catch(x) { x = 2; } }; "
"function g() { h(); }; "
"function h() { x = 1; throw 1; }; ";
// Step through invocation of a.
v8::Local<v8::Function> a = CompileFunction(&env, src, "a");
SetBreakPoint(a, 0);
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "aa";
a->Call(env->Global(), 0, NULL);
CHECK_EQ(StrLength(expected_step_sequence),
break_point_hit_count);
// Step through invocation of b + c.
v8::Local<v8::Function> b = CompileFunction(&env, src, "b");
SetBreakPoint(b, 0);
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "bcc";
b->Call(env->Global(), 0, NULL);
CHECK_EQ(StrLength(expected_step_sequence),
break_point_hit_count);
// Step through invocation of d + e.
v8::Local<v8::Function> d = CompileFunction(&env, src, "d");
SetBreakPoint(d, 0);
ChangeBreakOnException(false, true);
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "ddedd";
d->Call(env->Global(), 0, NULL);
CHECK_EQ(StrLength(expected_step_sequence),
break_point_hit_count);
// Step through invocation of d + e now with break on caught exceptions.
ChangeBreakOnException(true, true);
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "ddeedd";
d->Call(env->Global(), 0, NULL);
CHECK_EQ(StrLength(expected_step_sequence),
break_point_hit_count);
// Step through invocation of f + g + h.
v8::Local<v8::Function> f = CompileFunction(&env, src, "f");
SetBreakPoint(f, 0);
ChangeBreakOnException(false, true);
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "ffghhff";
f->Call(env->Global(), 0, NULL);
CHECK_EQ(StrLength(expected_step_sequence),
break_point_hit_count);
// Step through invocation of f + g + h now with break on caught exceptions.
ChangeBreakOnException(true, true);
step_action = StepIn;
break_point_hit_count = 0;
expected_step_sequence = "ffghhhff";
f->Call(env->Global(), 0, NULL);
CHECK_EQ(StrLength(expected_step_sequence),
break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
TEST(DebugBreak) {
v8::HandleScope scope;
DebugLocalContext env;
// This test should be run with option --verify-heap. As --verify-heap is
// only available in debug mode only check for it in that case.
#ifdef DEBUG
CHECK(v8::internal::FLAG_verify_heap);
#endif
// Register a debug event listener which sets the break flag and counts.
v8::Debug::SetDebugEventListener(DebugEventBreak);
// Create a function for testing stepping.
const char* src = "function f0() {}"
"function f1(x1) {}"
"function f2(x1,x2) {}"
"function f3(x1,x2,x3) {}";
v8::Local<v8::Function> f0 = CompileFunction(&env, src, "f0");
v8::Local<v8::Function> f1 = CompileFunction(&env, src, "f1");
v8::Local<v8::Function> f2 = CompileFunction(&env, src, "f2");
v8::Local<v8::Function> f3 = CompileFunction(&env, src, "f3");
// Call the function to make sure it is compiled.
v8::Handle<v8::Value> argv[] = { v8::Number::New(1),
v8::Number::New(1),
v8::Number::New(1),
v8::Number::New(1) };
// Call all functions to make sure that they are compiled.
f0->Call(env->Global(), 0, NULL);
f1->Call(env->Global(), 0, NULL);
f2->Call(env->Global(), 0, NULL);
f3->Call(env->Global(), 0, NULL);
// Set the debug break flag.
v8::Debug::DebugBreak();
// Call all functions with different argument count.
break_point_hit_count = 0;
for (unsigned int i = 0; i < ARRAY_SIZE(argv); i++) {
f0->Call(env->Global(), i, argv);
f1->Call(env->Global(), i, argv);
f2->Call(env->Global(), i, argv);
f3->Call(env->Global(), i, argv);
}
// One break for each function called.
CHECK_EQ(4 * ARRAY_SIZE(argv), break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Test to ensure that JavaScript code keeps running while the debug break
// through the stack limit flag is set but breaks are disabled.
TEST(DisableBreak) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which sets the break flag and counts.
v8::Debug::SetDebugEventListener(DebugEventCounter);
// Create a function for testing stepping.
const char* src = "function f() {g()};function g(){i=0; while(i<10){i++}}";
v8::Local<v8::Function> f = CompileFunction(&env, src, "f");
// Set the debug break flag.
v8::Debug::DebugBreak();
// Call all functions with different argument count.
break_point_hit_count = 0;
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
{
v8::Debug::DebugBreak();
v8::internal::DisableBreak disable_break(true);
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
}
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
static const char* kSimpleExtensionSource =
"(function Foo() {"
" return 4;"
"})() ";
// http://crbug.com/28933
// Test that debug break is disabled when bootstrapper is active.
TEST(NoBreakWhenBootstrapping) {
v8::HandleScope scope;
// Register a debug event listener which sets the break flag and counts.
v8::Debug::SetDebugEventListener(DebugEventCounter);
// Set the debug break flag.
v8::Debug::DebugBreak();
break_point_hit_count = 0;
{
// Create a context with an extension to make sure that some JavaScript
// code is executed during bootstrapping.
v8::RegisterExtension(new v8::Extension("simpletest",
kSimpleExtensionSource));
const char* extension_names[] = { "simpletest" };
v8::ExtensionConfiguration extensions(1, extension_names);
v8::Persistent<v8::Context> context = v8::Context::New(&extensions);
context.Dispose();
}
// Check that no DebugBreak events occured during the context creation.
CHECK_EQ(0, break_point_hit_count);
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
static v8::Handle<v8::Array> NamedEnum(const v8::AccessorInfo&) {
v8::Handle<v8::Array> result = v8::Array::New(3);
result->Set(v8::Integer::New(0), v8::String::New("a"));
result->Set(v8::Integer::New(1), v8::String::New("b"));
result->Set(v8::Integer::New(2), v8::String::New("c"));
return result;
}
static v8::Handle<v8::Array> IndexedEnum(const v8::AccessorInfo&) {
v8::Handle<v8::Array> result = v8::Array::New(2);
result->Set(v8::Integer::New(0), v8::Number::New(1));
result->Set(v8::Integer::New(1), v8::Number::New(10));
return result;
}
static v8::Handle<v8::Value> NamedGetter(v8::Local<v8::String> name,
const v8::AccessorInfo& info) {
v8::String::AsciiValue n(name);
if (strcmp(*n, "a") == 0) {
return v8::String::New("AA");
} else if (strcmp(*n, "b") == 0) {
return v8::String::New("BB");
} else if (strcmp(*n, "c") == 0) {
return v8::String::New("CC");
} else {
return v8::Undefined();
}
return name;
}
static v8::Handle<v8::Value> IndexedGetter(uint32_t index,
const v8::AccessorInfo& info) {
return v8::Number::New(index + 1);
}
TEST(InterceptorPropertyMirror) {
// Create a V8 environment with debug access.
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
// Create object with named interceptor.
v8::Handle<v8::ObjectTemplate> named = v8::ObjectTemplate::New();
named->SetNamedPropertyHandler(NamedGetter, NULL, NULL, NULL, NamedEnum);
env->Global()->Set(v8::String::New("intercepted_named"),
named->NewInstance());
// Create object with indexed interceptor.
v8::Handle<v8::ObjectTemplate> indexed = v8::ObjectTemplate::New();
indexed->SetIndexedPropertyHandler(IndexedGetter,
NULL,
NULL,
NULL,
IndexedEnum);
env->Global()->Set(v8::String::New("intercepted_indexed"),
indexed->NewInstance());
// Create object with both named and indexed interceptor.
v8::Handle<v8::ObjectTemplate> both = v8::ObjectTemplate::New();
both->SetNamedPropertyHandler(NamedGetter, NULL, NULL, NULL, NamedEnum);
both->SetIndexedPropertyHandler(IndexedGetter, NULL, NULL, NULL, IndexedEnum);
env->Global()->Set(v8::String::New("intercepted_both"), both->NewInstance());
// Get mirrors for the three objects with interceptor.
CompileRun(
"named_mirror = debug.MakeMirror(intercepted_named);"
"indexed_mirror = debug.MakeMirror(intercepted_indexed);"
"both_mirror = debug.MakeMirror(intercepted_both)");
CHECK(CompileRun(
"named_mirror instanceof debug.ObjectMirror")->BooleanValue());
CHECK(CompileRun(
"indexed_mirror instanceof debug.ObjectMirror")->BooleanValue());
CHECK(CompileRun(
"both_mirror instanceof debug.ObjectMirror")->BooleanValue());
// Get the property names from the interceptors
CompileRun(
"named_names = named_mirror.propertyNames();"
"indexed_names = indexed_mirror.propertyNames();"
"both_names = both_mirror.propertyNames()");
CHECK_EQ(3, CompileRun("named_names.length")->Int32Value());
CHECK_EQ(2, CompileRun("indexed_names.length")->Int32Value());
CHECK_EQ(5, CompileRun("both_names.length")->Int32Value());
// Check the expected number of properties.
const char* source;
source = "named_mirror.properties().length";
CHECK_EQ(3, CompileRun(source)->Int32Value());
source = "indexed_mirror.properties().length";
CHECK_EQ(2, CompileRun(source)->Int32Value());
source = "both_mirror.properties().length";
CHECK_EQ(5, CompileRun(source)->Int32Value());
// 1 is PropertyKind.Named;
source = "both_mirror.properties(1).length";
CHECK_EQ(3, CompileRun(source)->Int32Value());
// 2 is PropertyKind.Indexed;
source = "both_mirror.properties(2).length";
CHECK_EQ(2, CompileRun(source)->Int32Value());
// 3 is PropertyKind.Named | PropertyKind.Indexed;
source = "both_mirror.properties(3).length";
CHECK_EQ(5, CompileRun(source)->Int32Value());
// Get the interceptor properties for the object with only named interceptor.
CompileRun("named_values = named_mirror.properties()");
// Check that the properties are interceptor properties.
for (int i = 0; i < 3; i++) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
OS::SNPrintF(buffer,
"named_values[%d] instanceof debug.PropertyMirror", i);
CHECK(CompileRun(buffer.start())->BooleanValue());
// 5 is PropertyType.Interceptor
OS::SNPrintF(buffer, "named_values[%d].propertyType()", i);
CHECK_EQ(5, CompileRun(buffer.start())->Int32Value());
OS::SNPrintF(buffer, "named_values[%d].isNative()", i);
CHECK(CompileRun(buffer.start())->BooleanValue());
}
// Get the interceptor properties for the object with only indexed
// interceptor.
CompileRun("indexed_values = indexed_mirror.properties()");
// Check that the properties are interceptor properties.
for (int i = 0; i < 2; i++) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
OS::SNPrintF(buffer,
"indexed_values[%d] instanceof debug.PropertyMirror", i);
CHECK(CompileRun(buffer.start())->BooleanValue());
}
// Get the interceptor properties for the object with both types of
// interceptors.
CompileRun("both_values = both_mirror.properties()");
// Check that the properties are interceptor properties.
for (int i = 0; i < 5; i++) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
OS::SNPrintF(buffer, "both_values[%d] instanceof debug.PropertyMirror", i);
CHECK(CompileRun(buffer.start())->BooleanValue());
}
// Check the property names.
source = "both_values[0].name() == 'a'";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[1].name() == 'b'";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[2].name() == 'c'";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[3].name() == 1";
CHECK(CompileRun(source)->BooleanValue());
source = "both_values[4].name() == 10";
CHECK(CompileRun(source)->BooleanValue());
}
TEST(HiddenPrototypePropertyMirror) {
// Create a V8 environment with debug access.
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Handle<v8::FunctionTemplate> t0 = v8::FunctionTemplate::New();
t0->InstanceTemplate()->Set(v8::String::New("x"), v8::Number::New(0));
v8::Handle<v8::FunctionTemplate> t1 = v8::FunctionTemplate::New();
t1->SetHiddenPrototype(true);
t1->InstanceTemplate()->Set(v8::String::New("y"), v8::Number::New(1));
v8::Handle<v8::FunctionTemplate> t2 = v8::FunctionTemplate::New();
t2->SetHiddenPrototype(true);
t2->InstanceTemplate()->Set(v8::String::New("z"), v8::Number::New(2));
v8::Handle<v8::FunctionTemplate> t3 = v8::FunctionTemplate::New();
t3->InstanceTemplate()->Set(v8::String::New("u"), v8::Number::New(3));
// Create object and set them on the global object.
v8::Handle<v8::Object> o0 = t0->GetFunction()->NewInstance();
env->Global()->Set(v8::String::New("o0"), o0);
v8::Handle<v8::Object> o1 = t1->GetFunction()->NewInstance();
env->Global()->Set(v8::String::New("o1"), o1);
v8::Handle<v8::Object> o2 = t2->GetFunction()->NewInstance();
env->Global()->Set(v8::String::New("o2"), o2);
v8::Handle<v8::Object> o3 = t3->GetFunction()->NewInstance();
env->Global()->Set(v8::String::New("o3"), o3);
// Get mirrors for the four objects.
CompileRun(
"o0_mirror = debug.MakeMirror(o0);"
"o1_mirror = debug.MakeMirror(o1);"
"o2_mirror = debug.MakeMirror(o2);"
"o3_mirror = debug.MakeMirror(o3)");
CHECK(CompileRun("o0_mirror instanceof debug.ObjectMirror")->BooleanValue());
CHECK(CompileRun("o1_mirror instanceof debug.ObjectMirror")->BooleanValue());
CHECK(CompileRun("o2_mirror instanceof debug.ObjectMirror")->BooleanValue());
CHECK(CompileRun("o3_mirror instanceof debug.ObjectMirror")->BooleanValue());
// Check that each object has one property.
CHECK_EQ(1, CompileRun(
"o0_mirror.propertyNames().length")->Int32Value());
CHECK_EQ(1, CompileRun(
"o1_mirror.propertyNames().length")->Int32Value());
CHECK_EQ(1, CompileRun(
"o2_mirror.propertyNames().length")->Int32Value());
CHECK_EQ(1, CompileRun(
"o3_mirror.propertyNames().length")->Int32Value());
// Set o1 as prototype for o0. o1 has the hidden prototype flag so all
// properties on o1 should be seen on o0.
o0->Set(v8::String::New("__proto__"), o1);
CHECK_EQ(2, CompileRun(
"o0_mirror.propertyNames().length")->Int32Value());
CHECK_EQ(0, CompileRun(
"o0_mirror.property('x').value().value()")->Int32Value());
CHECK_EQ(1, CompileRun(
"o0_mirror.property('y').value().value()")->Int32Value());
// Set o2 as prototype for o0 (it will end up after o1 as o1 has the hidden
// prototype flag. o2 also has the hidden prototype flag so all properties
// on o2 should be seen on o0 as well as properties on o1.
o0->Set(v8::String::New("__proto__"), o2);
CHECK_EQ(3, CompileRun(
"o0_mirror.propertyNames().length")->Int32Value());
CHECK_EQ(0, CompileRun(
"o0_mirror.property('x').value().value()")->Int32Value());
CHECK_EQ(1, CompileRun(
"o0_mirror.property('y').value().value()")->Int32Value());
CHECK_EQ(2, CompileRun(
"o0_mirror.property('z').value().value()")->Int32Value());
// Set o3 as prototype for o0 (it will end up after o1 and o2 as both o1 and
// o2 has the hidden prototype flag. o3 does not have the hidden prototype
// flag so properties on o3 should not be seen on o0 whereas the properties
// from o1 and o2 should still be seen on o0.
// Final prototype chain: o0 -> o1 -> o2 -> o3
// Hidden prototypes: ^^ ^^
o0->Set(v8::String::New("__proto__"), o3);
CHECK_EQ(3, CompileRun(
"o0_mirror.propertyNames().length")->Int32Value());
CHECK_EQ(1, CompileRun(
"o3_mirror.propertyNames().length")->Int32Value());
CHECK_EQ(0, CompileRun(
"o0_mirror.property('x').value().value()")->Int32Value());
CHECK_EQ(1, CompileRun(
"o0_mirror.property('y').value().value()")->Int32Value());
CHECK_EQ(2, CompileRun(
"o0_mirror.property('z').value().value()")->Int32Value());
CHECK(CompileRun("o0_mirror.property('u').isUndefined()")->BooleanValue());
// The prototype (__proto__) for o0 should be o3 as o1 and o2 are hidden.
CHECK(CompileRun("o0_mirror.protoObject() == o3_mirror")->BooleanValue());
}
static v8::Handle<v8::Value> ProtperyXNativeGetter(
v8::Local<v8::String> property, const v8::AccessorInfo& info) {
return v8::Integer::New(10);
}
TEST(NativeGetterPropertyMirror) {
// Create a V8 environment with debug access.
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Handle<v8::String> name = v8::String::New("x");
// Create object with named accessor.
v8::Handle<v8::ObjectTemplate> named = v8::ObjectTemplate::New();
named->SetAccessor(name, &ProtperyXNativeGetter, NULL,
v8::Handle<v8::Value>(), v8::DEFAULT, v8::None);
// Create object with named property getter.
env->Global()->Set(v8::String::New("instance"), named->NewInstance());
CHECK_EQ(10, CompileRun("instance.x")->Int32Value());
// Get mirror for the object with property getter.
CompileRun("instance_mirror = debug.MakeMirror(instance);");
CHECK(CompileRun(
"instance_mirror instanceof debug.ObjectMirror")->BooleanValue());
CompileRun("named_names = instance_mirror.propertyNames();");
CHECK_EQ(1, CompileRun("named_names.length")->Int32Value());
CHECK(CompileRun("named_names[0] == 'x'")->BooleanValue());
CHECK(CompileRun(
"instance_mirror.property('x').value().isNumber()")->BooleanValue());
CHECK(CompileRun(
"instance_mirror.property('x').value().value() == 10")->BooleanValue());
}
static v8::Handle<v8::Value> ProtperyXNativeGetterThrowingError(
v8::Local<v8::String> property, const v8::AccessorInfo& info) {
return CompileRun("throw new Error('Error message');");
}
TEST(NativeGetterThrowingErrorPropertyMirror) {
// Create a V8 environment with debug access.
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
v8::Handle<v8::String> name = v8::String::New("x");
// Create object with named accessor.
v8::Handle<v8::ObjectTemplate> named = v8::ObjectTemplate::New();
named->SetAccessor(name, &ProtperyXNativeGetterThrowingError, NULL,
v8::Handle<v8::Value>(), v8::DEFAULT, v8::None);
// Create object with named property getter.
env->Global()->Set(v8::String::New("instance"), named->NewInstance());
// Get mirror for the object with property getter.
CompileRun("instance_mirror = debug.MakeMirror(instance);");
CHECK(CompileRun(
"instance_mirror instanceof debug.ObjectMirror")->BooleanValue());
CompileRun("named_names = instance_mirror.propertyNames();");
CHECK_EQ(1, CompileRun("named_names.length")->Int32Value());
CHECK(CompileRun("named_names[0] == 'x'")->BooleanValue());
CHECK(CompileRun(
"instance_mirror.property('x').value().isError()")->BooleanValue());
// Check that the message is that passed to the Error constructor.
CHECK(CompileRun(
"instance_mirror.property('x').value().message() == 'Error message'")->
BooleanValue());
}
// Test that hidden properties object is not returned as an unnamed property
// among regular properties.
// See http://crbug.com/26491
TEST(NoHiddenProperties) {
// Create a V8 environment with debug access.
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
// Create an object in the global scope.
const char* source = "var obj = {a: 1};";
v8::Script::Compile(v8::String::New(source))->Run();
v8::Local<v8::Object> obj = v8::Local<v8::Object>::Cast(
env->Global()->Get(v8::String::New("obj")));
// Set a hidden property on the object.
obj->SetHiddenValue(v8::String::New("v8::test-debug::a"),
v8::Int32::New(11));
// Get mirror for the object with property getter.
CompileRun("var obj_mirror = debug.MakeMirror(obj);");
CHECK(CompileRun(
"obj_mirror instanceof debug.ObjectMirror")->BooleanValue());
CompileRun("var named_names = obj_mirror.propertyNames();");
// There should be exactly one property. But there is also an unnamed
// property whose value is hidden properties dictionary. The latter
// property should not be in the list of reguar properties.
CHECK_EQ(1, CompileRun("named_names.length")->Int32Value());
CHECK(CompileRun("named_names[0] == 'a'")->BooleanValue());
CHECK(CompileRun(
"obj_mirror.property('a').value().value() == 1")->BooleanValue());
// Object created by t0 will become hidden prototype of object 'obj'.
v8::Handle<v8::FunctionTemplate> t0 = v8::FunctionTemplate::New();
t0->InstanceTemplate()->Set(v8::String::New("b"), v8::Number::New(2));
t0->SetHiddenPrototype(true);
v8::Handle<v8::FunctionTemplate> t1 = v8::FunctionTemplate::New();
t1->InstanceTemplate()->Set(v8::String::New("c"), v8::Number::New(3));
// Create proto objects, add hidden properties to them and set them on
// the global object.
v8::Handle<v8::Object> protoObj = t0->GetFunction()->NewInstance();
protoObj->SetHiddenValue(v8::String::New("v8::test-debug::b"),
v8::Int32::New(12));
env->Global()->Set(v8::String::New("protoObj"), protoObj);
v8::Handle<v8::Object> grandProtoObj = t1->GetFunction()->NewInstance();
grandProtoObj->SetHiddenValue(v8::String::New("v8::test-debug::c"),
v8::Int32::New(13));
env->Global()->Set(v8::String::New("grandProtoObj"), grandProtoObj);
// Setting prototypes: obj->protoObj->grandProtoObj
protoObj->Set(v8::String::New("__proto__"), grandProtoObj);
obj->Set(v8::String::New("__proto__"), protoObj);
// Get mirror for the object with property getter.
CompileRun("var obj_mirror = debug.MakeMirror(obj);");
CHECK(CompileRun(
"obj_mirror instanceof debug.ObjectMirror")->BooleanValue());
CompileRun("var named_names = obj_mirror.propertyNames();");
// There should be exactly two properties - one from the object itself and
// another from its hidden prototype.
CHECK_EQ(2, CompileRun("named_names.length")->Int32Value());
CHECK(CompileRun("named_names.sort(); named_names[0] == 'a' &&"
"named_names[1] == 'b'")->BooleanValue());
CHECK(CompileRun(
"obj_mirror.property('a').value().value() == 1")->BooleanValue());
CHECK(CompileRun(
"obj_mirror.property('b').value().value() == 2")->BooleanValue());
}
// Multithreaded tests of JSON debugger protocol
// Support classes
// Provides synchronization between k threads, where k is an input to the
// constructor. The Wait() call blocks a thread until it is called for the
// k'th time, then all calls return. Each ThreadBarrier object can only
// be used once.
class ThreadBarrier {
public:
explicit ThreadBarrier(int num_threads);
~ThreadBarrier();
void Wait();
private:
int num_threads_;
int num_blocked_;
v8::internal::Mutex* lock_;
v8::internal::Semaphore* sem_;
bool invalid_;
};
ThreadBarrier::ThreadBarrier(int num_threads)
: num_threads_(num_threads), num_blocked_(0) {
lock_ = OS::CreateMutex();
sem_ = OS::CreateSemaphore(0);
invalid_ = false; // A barrier may only be used once. Then it is invalid.
}
// Do not call, due to race condition with Wait().
// Could be resolved with Pthread condition variables.
ThreadBarrier::~ThreadBarrier() {
lock_->Lock();
delete lock_;
delete sem_;
}
void ThreadBarrier::Wait() {
lock_->Lock();
CHECK(!invalid_);
if (num_blocked_ == num_threads_ - 1) {
// Signal and unblock all waiting threads.
for (int i = 0; i < num_threads_ - 1; ++i) {
sem_->Signal();
}
invalid_ = true;
printf("BARRIER\n\n");
fflush(stdout);
lock_->Unlock();
} else { // Wait for the semaphore.
++num_blocked_;
lock_->Unlock(); // Potential race condition with destructor because
sem_->Wait(); // these two lines are not atomic.
}
}
// A set containing enough barriers and semaphores for any of the tests.
class Barriers {
public:
Barriers();
void Initialize();
ThreadBarrier barrier_1;
ThreadBarrier barrier_2;
ThreadBarrier barrier_3;
ThreadBarrier barrier_4;
ThreadBarrier barrier_5;
v8::internal::Semaphore* semaphore_1;
v8::internal::Semaphore* semaphore_2;
};
Barriers::Barriers() : barrier_1(2), barrier_2(2),
barrier_3(2), barrier_4(2), barrier_5(2) {}
void Barriers::Initialize() {
semaphore_1 = OS::CreateSemaphore(0);
semaphore_2 = OS::CreateSemaphore(0);
}
// We match parts of the message to decide if it is a break message.
bool IsBreakEventMessage(char *message) {
const char* type_event = "\"type\":\"event\"";
const char* event_break = "\"event\":\"break\"";
// Does the message contain both type:event and event:break?
return strstr(message, type_event) != NULL &&
strstr(message, event_break) != NULL;
}
// We match parts of the message to decide if it is a exception message.
bool IsExceptionEventMessage(char *message) {
const char* type_event = "\"type\":\"event\"";
const char* event_exception = "\"event\":\"exception\"";
// Does the message contain both type:event and event:exception?
return strstr(message, type_event) != NULL &&
strstr(message, event_exception) != NULL;
}
// We match the message wether it is an evaluate response message.
bool IsEvaluateResponseMessage(char* message) {
const char* type_response = "\"type\":\"response\"";
const char* command_evaluate = "\"command\":\"evaluate\"";
// Does the message contain both type:response and command:evaluate?
return strstr(message, type_response) != NULL &&
strstr(message, command_evaluate) != NULL;
}
static int StringToInt(const char* s) {
return atoi(s); // NOLINT
}
// We match parts of the message to get evaluate result int value.
int GetEvaluateIntResult(char *message) {
const char* value = "\"value\":";
char* pos = strstr(message, value);
if (pos == NULL) {
return -1;
}
int res = -1;
res = StringToInt(pos + strlen(value));
return res;
}
// We match parts of the message to get hit breakpoint id.
int GetBreakpointIdFromBreakEventMessage(char *message) {
const char* breakpoints = "\"breakpoints\":[";
char* pos = strstr(message, breakpoints);
if (pos == NULL) {
return -1;
}
int res = -1;
res = StringToInt(pos + strlen(breakpoints));
return res;
}
// We match parts of the message to get total frames number.
int GetTotalFramesInt(char *message) {
const char* prefix = "\"totalFrames\":";
char* pos = strstr(message, prefix);
if (pos == NULL) {
return -1;
}
pos += strlen(prefix);
int res = StringToInt(pos);
return res;
}
// We match parts of the message to get source line.
int GetSourceLineFromBreakEventMessage(char *message) {
const char* source_line = "\"sourceLine\":";
char* pos = strstr(message, source_line);
if (pos == NULL) {
return -1;
}
int res = -1;
res = StringToInt(pos + strlen(source_line));
return res;
}
/* Test MessageQueues */
/* Tests the message queues that hold debugger commands and
* response messages to the debugger. Fills queues and makes
* them grow.
*/
Barriers message_queue_barriers;
// This is the debugger thread, that executes no v8 calls except
// placing JSON debugger commands in the queue.
class MessageQueueDebuggerThread : public v8::internal::Thread {
public:
MessageQueueDebuggerThread()
: Thread("MessageQueueDebuggerThread") { }
void Run();
};
static void MessageHandler(const uint16_t* message, int length,
v8::Debug::ClientData* client_data) {
static char print_buffer[1000];
Utf16ToAscii(message, length, print_buffer);
if (IsBreakEventMessage(print_buffer)) {
// Lets test script wait until break occurs to send commands.
// Signals when a break is reported.
message_queue_barriers.semaphore_2->Signal();
}
// Allow message handler to block on a semaphore, to test queueing of
// messages while blocked.
message_queue_barriers.semaphore_1->Wait();
}
void MessageQueueDebuggerThread::Run() {
const int kBufferSize = 1000;
uint16_t buffer_1[kBufferSize];
uint16_t buffer_2[kBufferSize];
const char* command_1 =
"{\"seq\":117,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"1+2\"}}";
const char* command_2 =
"{\"seq\":118,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"1+a\"}}";
const char* command_3 =
"{\"seq\":119,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"c.d * b\"}}";
const char* command_continue =
"{\"seq\":106,"
"\"type\":\"request\","
"\"command\":\"continue\"}";
const char* command_single_step =
"{\"seq\":107,"
"\"type\":\"request\","
"\"command\":\"continue\","
"\"arguments\":{\"stepaction\":\"next\"}}";
/* Interleaved sequence of actions by the two threads:*/
// Main thread compiles and runs source_1
message_queue_barriers.semaphore_1->Signal();
message_queue_barriers.barrier_1.Wait();
// Post 6 commands, filling the command queue and making it expand.
// These calls return immediately, but the commands stay on the queue
// until the execution of source_2.
// Note: AsciiToUtf16 executes before SendCommand, so command is copied
// to buffer before buffer is sent to SendCommand.
v8::Debug::SendCommand(buffer_1, AsciiToUtf16(command_1, buffer_1));
v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_2, buffer_2));
v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_3, buffer_2));
v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_3, buffer_2));
v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_3, buffer_2));
message_queue_barriers.barrier_2.Wait();
// Main thread compiles and runs source_2.
// Queued commands are executed at the start of compilation of source_2(
// beforeCompile event).
// Free the message handler to process all the messages from the queue. 7
// messages are expected: 2 afterCompile events and 5 responses.
// All the commands added so far will fail to execute as long as call stack
// is empty on beforeCompile event.
for (int i = 0; i < 6 ; ++i) {
message_queue_barriers.semaphore_1->Signal();
}
message_queue_barriers.barrier_3.Wait();
// Main thread compiles and runs source_3.
// Don't stop in the afterCompile handler.
message_queue_barriers.semaphore_1->Signal();
// source_3 includes a debugger statement, which causes a break event.
// Wait on break event from hitting "debugger" statement
message_queue_barriers.semaphore_2->Wait();
// These should execute after the "debugger" statement in source_2
v8::Debug::SendCommand(buffer_1, AsciiToUtf16(command_1, buffer_1));
v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_2, buffer_2));
v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_3, buffer_2));
v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_single_step, buffer_2));
// Run after 2 break events, 4 responses.
for (int i = 0; i < 6 ; ++i) {
message_queue_barriers.semaphore_1->Signal();
}
// Wait on break event after a single step executes.
message_queue_barriers.semaphore_2->Wait();
v8::Debug::SendCommand(buffer_1, AsciiToUtf16(command_2, buffer_1));
v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_continue, buffer_2));
// Run after 2 responses.
for (int i = 0; i < 2 ; ++i) {
message_queue_barriers.semaphore_1->Signal();
}
// Main thread continues running source_3 to end, waits for this thread.
}
// This thread runs the v8 engine.
TEST(MessageQueues) {
MessageQueueDebuggerThread message_queue_debugger_thread;
// Create a V8 environment
v8::HandleScope scope;
DebugLocalContext env;
message_queue_barriers.Initialize();
v8::Debug::SetMessageHandler(MessageHandler);
message_queue_debugger_thread.Start();
const char* source_1 = "a = 3; b = 4; c = new Object(); c.d = 5;";
const char* source_2 = "e = 17;";
const char* source_3 = "a = 4; debugger; a = 5; a = 6; a = 7;";
// See MessageQueueDebuggerThread::Run for interleaved sequence of
// API calls and events in the two threads.
CompileRun(source_1);
message_queue_barriers.barrier_1.Wait();
message_queue_barriers.barrier_2.Wait();
CompileRun(source_2);
message_queue_barriers.barrier_3.Wait();
CompileRun(source_3);
message_queue_debugger_thread.Join();
fflush(stdout);
}
class TestClientData : public v8::Debug::ClientData {
public:
TestClientData() {
constructor_call_counter++;
}
virtual ~TestClientData() {
destructor_call_counter++;
}
static void ResetCounters() {
constructor_call_counter = 0;
destructor_call_counter = 0;
}
static int constructor_call_counter;
static int destructor_call_counter;
};
int TestClientData::constructor_call_counter = 0;
int TestClientData::destructor_call_counter = 0;
// Tests that MessageQueue doesn't destroy client data when expands and
// does destroy when it dies.
TEST(MessageQueueExpandAndDestroy) {
TestClientData::ResetCounters();
{ // Create a scope for the queue.
CommandMessageQueue queue(1);
queue.Put(CommandMessage::New(Vector<uint16_t>::empty(),
new TestClientData()));
queue.Put(CommandMessage::New(Vector<uint16_t>::empty(),
new TestClientData()));
queue.Put(CommandMessage::New(Vector<uint16_t>::empty(),
new TestClientData()));
CHECK_EQ(0, TestClientData::destructor_call_counter);
queue.Get().Dispose();
CHECK_EQ(1, TestClientData::destructor_call_counter);
queue.Put(CommandMessage::New(Vector<uint16_t>::empty(),
new TestClientData()));
queue.Put(CommandMessage::New(Vector<uint16_t>::empty(),
new TestClientData()));
queue.Put(CommandMessage::New(Vector<uint16_t>::empty(),
new TestClientData()));
queue.Put(CommandMessage::New(Vector<uint16_t>::empty(),
new TestClientData()));
queue.Put(CommandMessage::New(Vector<uint16_t>::empty(),
new TestClientData()));
CHECK_EQ(1, TestClientData::destructor_call_counter);
queue.Get().Dispose();
CHECK_EQ(2, TestClientData::destructor_call_counter);
}
// All the client data should be destroyed when the queue is destroyed.
CHECK_EQ(TestClientData::destructor_call_counter,
TestClientData::destructor_call_counter);
}
static int handled_client_data_instances_count = 0;
static void MessageHandlerCountingClientData(
const v8::Debug::Message& message) {
if (message.GetClientData() != NULL) {
handled_client_data_instances_count++;
}
}
// Tests that all client data passed to the debugger are sent to the handler.
TEST(SendClientDataToHandler) {
// Create a V8 environment
v8::HandleScope scope;
DebugLocalContext env;
TestClientData::ResetCounters();
handled_client_data_instances_count = 0;
v8::Debug::SetMessageHandler2(MessageHandlerCountingClientData);
const char* source_1 = "a = 3; b = 4; c = new Object(); c.d = 5;";
const int kBufferSize = 1000;
uint16_t buffer[kBufferSize];
const char* command_1 =
"{\"seq\":117,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"1+2\"}}";
const char* command_2 =
"{\"seq\":118,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"1+a\"}}";
const char* command_continue =
"{\"seq\":106,"
"\"type\":\"request\","
"\"command\":\"continue\"}";
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_1, buffer),
new TestClientData());
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_2, buffer), NULL);
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_2, buffer),
new TestClientData());
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_2, buffer),
new TestClientData());
// All the messages will be processed on beforeCompile event.
CompileRun(source_1);
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_continue, buffer));
CHECK_EQ(3, TestClientData::constructor_call_counter);
CHECK_EQ(TestClientData::constructor_call_counter,
handled_client_data_instances_count);
CHECK_EQ(TestClientData::constructor_call_counter,
TestClientData::destructor_call_counter);
}
/* Test ThreadedDebugging */
/* This test interrupts a running infinite loop that is
* occupying the v8 thread by a break command from the
* debugger thread. It then changes the value of a
* global object, to make the loop terminate.
*/
Barriers threaded_debugging_barriers;
class V8Thread : public v8::internal::Thread {
public:
V8Thread() : Thread("V8Thread") { }
void Run();
};
class DebuggerThread : public v8::internal::Thread {
public:
DebuggerThread() : Thread("DebuggerThread") { }
void Run();
};
static v8::Handle<v8::Value> ThreadedAtBarrier1(const v8::Arguments& args) {
threaded_debugging_barriers.barrier_1.Wait();
return v8::Undefined();
}
static void ThreadedMessageHandler(const v8::Debug::Message& message) {
static char print_buffer[1000];
v8::String::Value json(message.GetJSON());
Utf16ToAscii(*json, json.length(), print_buffer);
if (IsBreakEventMessage(print_buffer)) {
// Check that we are inside the while loop.
int source_line = GetSourceLineFromBreakEventMessage(print_buffer);
CHECK(8 <= source_line && source_line <= 13);
threaded_debugging_barriers.barrier_2.Wait();
}
}
void V8Thread::Run() {
const char* source =
"flag = true;\n"
"function bar( new_value ) {\n"
" flag = new_value;\n"
" return \"Return from bar(\" + new_value + \")\";\n"
"}\n"
"\n"
"function foo() {\n"
" var x = 1;\n"
" while ( flag == true ) {\n"
" if ( x == 1 ) {\n"
" ThreadedAtBarrier1();\n"
" }\n"
" x = x + 1;\n"
" }\n"
"}\n"
"\n"
"foo();\n";
v8::V8::Initialize();
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetMessageHandler2(&ThreadedMessageHandler);
v8::Handle<v8::ObjectTemplate> global_template = v8::ObjectTemplate::New();
global_template->Set(v8::String::New("ThreadedAtBarrier1"),
v8::FunctionTemplate::New(ThreadedAtBarrier1));
v8::Handle<v8::Context> context = v8::Context::New(NULL, global_template);
v8::Context::Scope context_scope(context);
CompileRun(source);
}
void DebuggerThread::Run() {
const int kBufSize = 1000;
uint16_t buffer[kBufSize];
const char* command_1 = "{\"seq\":102,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"bar(false)\"}}";
const char* command_2 = "{\"seq\":103,"
"\"type\":\"request\","
"\"command\":\"continue\"}";
threaded_debugging_barriers.barrier_1.Wait();
v8::Debug::DebugBreak();
threaded_debugging_barriers.barrier_2.Wait();
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_1, buffer));
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_2, buffer));
}
TEST(ThreadedDebugging) {
DebuggerThread debugger_thread;
V8Thread v8_thread;
// Create a V8 environment
threaded_debugging_barriers.Initialize();
v8_thread.Start();
debugger_thread.Start();
v8_thread.Join();
debugger_thread.Join();
}
/* Test RecursiveBreakpoints */
/* In this test, the debugger evaluates a function with a breakpoint, after
* hitting a breakpoint in another function. We do this with both values
* of the flag enabling recursive breakpoints, and verify that the second
* breakpoint is hit when enabled, and missed when disabled.
*/
class BreakpointsV8Thread : public v8::internal::Thread {
public:
BreakpointsV8Thread() : Thread("BreakpointsV8Thread") { }
void Run();
};
class BreakpointsDebuggerThread : public v8::internal::Thread {
public:
explicit BreakpointsDebuggerThread(bool global_evaluate)
: Thread("BreakpointsDebuggerThread"),
global_evaluate_(global_evaluate) {}
void Run();
private:
bool global_evaluate_;
};
Barriers* breakpoints_barriers;
int break_event_breakpoint_id;
int evaluate_int_result;
static void BreakpointsMessageHandler(const v8::Debug::Message& message) {
static char print_buffer[1000];
v8::String::Value json(message.GetJSON());
Utf16ToAscii(*json, json.length(), print_buffer);
if (IsBreakEventMessage(print_buffer)) {
break_event_breakpoint_id =
GetBreakpointIdFromBreakEventMessage(print_buffer);
breakpoints_barriers->semaphore_1->Signal();
} else if (IsEvaluateResponseMessage(print_buffer)) {
evaluate_int_result = GetEvaluateIntResult(print_buffer);
breakpoints_barriers->semaphore_1->Signal();
}
}
void BreakpointsV8Thread::Run() {
const char* source_1 = "var y_global = 3;\n"
"function cat( new_value ) {\n"
" var x = new_value;\n"
" y_global = y_global + 4;\n"
" x = 3 * x + 1;\n"
" y_global = y_global + 5;\n"
" return x;\n"
"}\n"
"\n"
"function dog() {\n"
" var x = 1;\n"
" x = y_global;"
" var z = 3;"
" x += 100;\n"
" return x;\n"
"}\n"
"\n";
const char* source_2 = "cat(17);\n"
"cat(19);\n";
v8::V8::Initialize();
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetMessageHandler2(&BreakpointsMessageHandler);
CompileRun(source_1);
breakpoints_barriers->barrier_1.Wait();
breakpoints_barriers->barrier_2.Wait();
CompileRun(source_2);
}
void BreakpointsDebuggerThread::Run() {
const int kBufSize = 1000;
uint16_t buffer[kBufSize];
const char* command_1 = "{\"seq\":101,"
"\"type\":\"request\","
"\"command\":\"setbreakpoint\","
"\"arguments\":{\"type\":\"function\",\"target\":\"cat\",\"line\":3}}";
const char* command_2 = "{\"seq\":102,"
"\"type\":\"request\","
"\"command\":\"setbreakpoint\","
"\"arguments\":{\"type\":\"function\",\"target\":\"dog\",\"line\":3}}";
const char* command_3;
if (this->global_evaluate_) {
command_3 = "{\"seq\":103,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"dog()\",\"disable_break\":false,"
"\"global\":true}}";
} else {
command_3 = "{\"seq\":103,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"dog()\",\"disable_break\":false}}";
}
const char* command_4;
if (this->global_evaluate_) {
command_4 = "{\"seq\":104,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"100 + 8\",\"disable_break\":true,"
"\"global\":true}}";
} else {
command_4 = "{\"seq\":104,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"x + 1\",\"disable_break\":true}}";
}
const char* command_5 = "{\"seq\":105,"
"\"type\":\"request\","
"\"command\":\"continue\"}";
const char* command_6 = "{\"seq\":106,"
"\"type\":\"request\","
"\"command\":\"continue\"}";
const char* command_7;
if (this->global_evaluate_) {
command_7 = "{\"seq\":107,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"dog()\",\"disable_break\":true,"
"\"global\":true}}";
} else {
command_7 = "{\"seq\":107,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"dog()\",\"disable_break\":true}}";
}
const char* command_8 = "{\"seq\":108,"
"\"type\":\"request\","
"\"command\":\"continue\"}";
// v8 thread initializes, runs source_1
breakpoints_barriers->barrier_1.Wait();
// 1:Set breakpoint in cat() (will get id 1).
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_1, buffer));
// 2:Set breakpoint in dog() (will get id 2).
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_2, buffer));
breakpoints_barriers->barrier_2.Wait();
// V8 thread starts compiling source_2.
// Automatic break happens, to run queued commands
// breakpoints_barriers->semaphore_1->Wait();
// Commands 1 through 3 run, thread continues.
// v8 thread runs source_2 to breakpoint in cat().
// message callback receives break event.
breakpoints_barriers->semaphore_1->Wait();
// Must have hit breakpoint #1.
CHECK_EQ(1, break_event_breakpoint_id);
// 4:Evaluate dog() (which has a breakpoint).
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_3, buffer));
// V8 thread hits breakpoint in dog().
breakpoints_barriers->semaphore_1->Wait(); // wait for break event
// Must have hit breakpoint #2.
CHECK_EQ(2, break_event_breakpoint_id);
// 5:Evaluate (x + 1).
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_4, buffer));
// Evaluate (x + 1) finishes.
breakpoints_barriers->semaphore_1->Wait();
// Must have result 108.
CHECK_EQ(108, evaluate_int_result);
// 6:Continue evaluation of dog().
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_5, buffer));
// Evaluate dog() finishes.
breakpoints_barriers->semaphore_1->Wait();
// Must have result 107.
CHECK_EQ(107, evaluate_int_result);
// 7:Continue evaluation of source_2, finish cat(17), hit breakpoint
// in cat(19).
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_6, buffer));
// Message callback gets break event.
breakpoints_barriers->semaphore_1->Wait(); // wait for break event
// Must have hit breakpoint #1.
CHECK_EQ(1, break_event_breakpoint_id);
// 8: Evaluate dog() with breaks disabled.
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_7, buffer));
// Evaluate dog() finishes.
breakpoints_barriers->semaphore_1->Wait();
// Must have result 116.
CHECK_EQ(116, evaluate_int_result);
// 9: Continue evaluation of source2, reach end.
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_8, buffer));
}
void TestRecursiveBreakpointsGeneric(bool global_evaluate) {
i::FLAG_debugger_auto_break = true;
BreakpointsDebuggerThread breakpoints_debugger_thread(global_evaluate);
BreakpointsV8Thread breakpoints_v8_thread;
// Create a V8 environment
Barriers stack_allocated_breakpoints_barriers;
stack_allocated_breakpoints_barriers.Initialize();
breakpoints_barriers = &stack_allocated_breakpoints_barriers;
breakpoints_v8_thread.Start();
breakpoints_debugger_thread.Start();
breakpoints_v8_thread.Join();
breakpoints_debugger_thread.Join();
}
TEST(RecursiveBreakpoints) {
TestRecursiveBreakpointsGeneric(false);
}
TEST(RecursiveBreakpointsGlobal) {
TestRecursiveBreakpointsGeneric(true);
}
static void DummyDebugEventListener(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
}
TEST(SetDebugEventListenerOnUninitializedVM) {
v8::Debug::SetDebugEventListener(DummyDebugEventListener);
}
static void DummyMessageHandler(const v8::Debug::Message& message) {
}
TEST(SetMessageHandlerOnUninitializedVM) {
v8::Debug::SetMessageHandler2(DummyMessageHandler);
}
TEST(DebugBreakOnUninitializedVM) {
v8::Debug::DebugBreak();
}
TEST(SendCommandToUninitializedVM) {
const char* dummy_command = "{}";
uint16_t dummy_buffer[80];
int dummy_length = AsciiToUtf16(dummy_command, dummy_buffer);
v8::Debug::SendCommand(dummy_buffer, dummy_length);
}
// Source for a JavaScript function which returns the data parameter of a
// function called in the context of the debugger. If no data parameter is
// passed it throws an exception.
static const char* debugger_call_with_data_source =
"function debugger_call_with_data(exec_state, data) {"
" if (data) return data;"
" throw 'No data!'"
"}";
v8::Handle<v8::Function> debugger_call_with_data;
// Source for a JavaScript function which returns the data parameter of a
// function called in the context of the debugger. If no data parameter is
// passed it throws an exception.
static const char* debugger_call_with_closure_source =
"var x = 3;"
"(function (exec_state) {"
" if (exec_state.y) return x - 1;"
" exec_state.y = x;"
" return exec_state.y"
"})";
v8::Handle<v8::Function> debugger_call_with_closure;
// Function to retrieve the number of JavaScript frames by calling a JavaScript
// in the debugger.
static v8::Handle<v8::Value> CheckFrameCount(const v8::Arguments& args) {
CHECK(v8::Debug::Call(frame_count)->IsNumber());
CHECK_EQ(args[0]->Int32Value(),
v8::Debug::Call(frame_count)->Int32Value());
return v8::Undefined();
}
// Function to retrieve the source line of the top JavaScript frame by calling a
// JavaScript function in the debugger.
static v8::Handle<v8::Value> CheckSourceLine(const v8::Arguments& args) {
CHECK(v8::Debug::Call(frame_source_line)->IsNumber());
CHECK_EQ(args[0]->Int32Value(),
v8::Debug::Call(frame_source_line)->Int32Value());
return v8::Undefined();
}
// Function to test passing an additional parameter to a JavaScript function
// called in the debugger. It also tests that functions called in the debugger
// can throw exceptions.
static v8::Handle<v8::Value> CheckDataParameter(const v8::Arguments& args) {
v8::Handle<v8::String> data = v8::String::New("Test");
CHECK(v8::Debug::Call(debugger_call_with_data, data)->IsString());
CHECK(v8::Debug::Call(debugger_call_with_data).IsEmpty());
CHECK(v8::Debug::Call(debugger_call_with_data).IsEmpty());
v8::TryCatch catcher;
v8::Debug::Call(debugger_call_with_data);
CHECK(catcher.HasCaught());
CHECK(catcher.Exception()->IsString());
return v8::Undefined();
}
// Function to test using a JavaScript with closure in the debugger.
static v8::Handle<v8::Value> CheckClosure(const v8::Arguments& args) {
CHECK(v8::Debug::Call(debugger_call_with_closure)->IsNumber());
CHECK_EQ(3, v8::Debug::Call(debugger_call_with_closure)->Int32Value());
return v8::Undefined();
}
// Test functions called through the debugger.
TEST(CallFunctionInDebugger) {
// Create and enter a context with the functions CheckFrameCount,
// CheckSourceLine and CheckDataParameter installed.
v8::HandleScope scope;
v8::Handle<v8::ObjectTemplate> global_template = v8::ObjectTemplate::New();
global_template->Set(v8::String::New("CheckFrameCount"),
v8::FunctionTemplate::New(CheckFrameCount));
global_template->Set(v8::String::New("CheckSourceLine"),
v8::FunctionTemplate::New(CheckSourceLine));
global_template->Set(v8::String::New("CheckDataParameter"),
v8::FunctionTemplate::New(CheckDataParameter));
global_template->Set(v8::String::New("CheckClosure"),
v8::FunctionTemplate::New(CheckClosure));
v8::Handle<v8::Context> context = v8::Context::New(NULL, global_template);
v8::Context::Scope context_scope(context);
// Compile a function for checking the number of JavaScript frames.
v8::Script::Compile(v8::String::New(frame_count_source))->Run();
frame_count = v8::Local<v8::Function>::Cast(
context->Global()->Get(v8::String::New("frame_count")));
// Compile a function for returning the source line for the top frame.
v8::Script::Compile(v8::String::New(frame_source_line_source))->Run();
frame_source_line = v8::Local<v8::Function>::Cast(
context->Global()->Get(v8::String::New("frame_source_line")));
// Compile a function returning the data parameter.
v8::Script::Compile(v8::String::New(debugger_call_with_data_source))->Run();
debugger_call_with_data = v8::Local<v8::Function>::Cast(
context->Global()->Get(v8::String::New("debugger_call_with_data")));
// Compile a function capturing closure.
debugger_call_with_closure = v8::Local<v8::Function>::Cast(
v8::Script::Compile(
v8::String::New(debugger_call_with_closure_source))->Run());
// Calling a function through the debugger returns 0 frames if there are
// no JavaScript frames.
CHECK_EQ(v8::Integer::New(0), v8::Debug::Call(frame_count));
// Test that the number of frames can be retrieved.
v8::Script::Compile(v8::String::New("CheckFrameCount(1)"))->Run();
v8::Script::Compile(v8::String::New("function f() {"
" CheckFrameCount(2);"
"}; f()"))->Run();
// Test that the source line can be retrieved.
v8::Script::Compile(v8::String::New("CheckSourceLine(0)"))->Run();
v8::Script::Compile(v8::String::New("function f() {\n"
" CheckSourceLine(1)\n"
" CheckSourceLine(2)\n"
" CheckSourceLine(3)\n"
"}; f()"))->Run();
// Test that a parameter can be passed to a function called in the debugger.
v8::Script::Compile(v8::String::New("CheckDataParameter()"))->Run();
// Test that a function with closure can be run in the debugger.
v8::Script::Compile(v8::String::New("CheckClosure()"))->Run();
// Test that the source line is correct when there is a line offset.
v8::ScriptOrigin origin(v8::String::New("test"),
v8::Integer::New(7));
v8::Script::Compile(v8::String::New("CheckSourceLine(7)"), &origin)->Run();
v8::Script::Compile(v8::String::New("function f() {\n"
" CheckSourceLine(8)\n"
" CheckSourceLine(9)\n"
" CheckSourceLine(10)\n"
"}; f()"), &origin)->Run();
}
// Debugger message handler which counts the number of breaks.
static void SendContinueCommand();
static void MessageHandlerBreakPointHitCount(
const v8::Debug::Message& message) {
if (message.IsEvent() && message.GetEvent() == v8::Break) {
// Count the number of breaks.
break_point_hit_count++;
SendContinueCommand();
}
}
// Test that clearing the debug event listener actually clears all break points
// and related information.
TEST(DebuggerUnload) {
DebugLocalContext env;
// Check debugger is unloaded before it is used.
CheckDebuggerUnloaded();
// Set a debug event listener.
break_point_hit_count = 0;
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
{
v8::HandleScope scope;
// Create a couple of functions for the test.
v8::Local<v8::Function> foo =
CompileFunction(&env, "function foo(){x=1}", "foo");
v8::Local<v8::Function> bar =
CompileFunction(&env, "function bar(){y=2}", "bar");
// Set some break points.
SetBreakPoint(foo, 0);
SetBreakPoint(foo, 4);
SetBreakPoint(bar, 0);
SetBreakPoint(bar, 4);
// Make sure that the break points are there.
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
bar->Call(env->Global(), 0, NULL);
CHECK_EQ(4, break_point_hit_count);
}
// Remove the debug event listener without clearing breakpoints. Do this
// outside a handle scope.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded(true);
// Now set a debug message handler.
break_point_hit_count = 0;
v8::Debug::SetMessageHandler2(MessageHandlerBreakPointHitCount);
{
v8::HandleScope scope;
// Get the test functions again.
v8::Local<v8::Function> foo(v8::Local<v8::Function>::Cast(
env->Global()->Get(v8::String::New("foo"))));
v8::Local<v8::Function> bar(v8::Local<v8::Function>::Cast(
env->Global()->Get(v8::String::New("foo"))));
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(0, break_point_hit_count);
// Set break points and run again.
SetBreakPoint(foo, 0);
SetBreakPoint(foo, 4);
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
}
// Remove the debug message handler without clearing breakpoints. Do this
// outside a handle scope.
v8::Debug::SetMessageHandler2(NULL);
CheckDebuggerUnloaded(true);
}
// Sends continue command to the debugger.
static void SendContinueCommand() {
const int kBufferSize = 1000;
uint16_t buffer[kBufferSize];
const char* command_continue =
"{\"seq\":0,"
"\"type\":\"request\","
"\"command\":\"continue\"}";
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_continue, buffer));
}
// Debugger message handler which counts the number of times it is called.
static int message_handler_hit_count = 0;
static void MessageHandlerHitCount(const v8::Debug::Message& message) {
message_handler_hit_count++;
static char print_buffer[1000];
v8::String::Value json(message.GetJSON());
Utf16ToAscii(*json, json.length(), print_buffer);
if (IsExceptionEventMessage(print_buffer)) {
// Send a continue command for exception events.
SendContinueCommand();
}
}
// Test clearing the debug message handler.
TEST(DebuggerClearMessageHandler) {
v8::HandleScope scope;
DebugLocalContext env;
// Check debugger is unloaded before it is used.
CheckDebuggerUnloaded();
// Set a debug message handler.
v8::Debug::SetMessageHandler2(MessageHandlerHitCount);
// Run code to throw a unhandled exception. This should end up in the message
// handler.
CompileRun("throw 1");
// The message handler should be called.
CHECK_GT(message_handler_hit_count, 0);
// Clear debug message handler.
message_handler_hit_count = 0;
v8::Debug::SetMessageHandler(NULL);
// Run code to throw a unhandled exception. This should end up in the message
// handler.
CompileRun("throw 1");
// The message handler should not be called more.
CHECK_EQ(0, message_handler_hit_count);
CheckDebuggerUnloaded(true);
}
// Debugger message handler which clears the message handler while active.
static void MessageHandlerClearingMessageHandler(
const v8::Debug::Message& message) {
message_handler_hit_count++;
// Clear debug message handler.
v8::Debug::SetMessageHandler(NULL);
}
// Test clearing the debug message handler while processing a debug event.
TEST(DebuggerClearMessageHandlerWhileActive) {
v8::HandleScope scope;
DebugLocalContext env;
// Check debugger is unloaded before it is used.
CheckDebuggerUnloaded();
// Set a debug message handler.
v8::Debug::SetMessageHandler2(MessageHandlerClearingMessageHandler);
// Run code to throw a unhandled exception. This should end up in the message
// handler.
CompileRun("throw 1");
// The message handler should be called.
CHECK_EQ(1, message_handler_hit_count);
CheckDebuggerUnloaded(true);
}
/* Test DebuggerHostDispatch */
/* In this test, the debugger waits for a command on a breakpoint
* and is dispatching host commands while in the infinite loop.
*/
class HostDispatchV8Thread : public v8::internal::Thread {
public:
HostDispatchV8Thread() : Thread("HostDispatchV8Thread") { }
void Run();
};
class HostDispatchDebuggerThread : public v8::internal::Thread {
public:
HostDispatchDebuggerThread() : Thread("HostDispatchDebuggerThread") { }
void Run();
};
Barriers* host_dispatch_barriers;
static void HostDispatchMessageHandler(const v8::Debug::Message& message) {
static char print_buffer[1000];
v8::String::Value json(message.GetJSON());
Utf16ToAscii(*json, json.length(), print_buffer);
}
static void HostDispatchDispatchHandler() {
host_dispatch_barriers->semaphore_1->Signal();
}
void HostDispatchV8Thread::Run() {
const char* source_1 = "var y_global = 3;\n"
"function cat( new_value ) {\n"
" var x = new_value;\n"
" y_global = 4;\n"
" x = 3 * x + 1;\n"
" y_global = 5;\n"
" return x;\n"
"}\n"
"\n";
const char* source_2 = "cat(17);\n";
v8::V8::Initialize();
v8::HandleScope scope;
DebugLocalContext env;
// Setup message and host dispatch handlers.
v8::Debug::SetMessageHandler2(HostDispatchMessageHandler);
v8::Debug::SetHostDispatchHandler(HostDispatchDispatchHandler, 10 /* ms */);
CompileRun(source_1);
host_dispatch_barriers->barrier_1.Wait();
host_dispatch_barriers->barrier_2.Wait();
CompileRun(source_2);
}
void HostDispatchDebuggerThread::Run() {
const int kBufSize = 1000;
uint16_t buffer[kBufSize];
const char* command_1 = "{\"seq\":101,"
"\"type\":\"request\","
"\"command\":\"setbreakpoint\","
"\"arguments\":{\"type\":\"function\",\"target\":\"cat\",\"line\":3}}";
const char* command_2 = "{\"seq\":102,"
"\"type\":\"request\","
"\"command\":\"continue\"}";
// v8 thread initializes, runs source_1
host_dispatch_barriers->barrier_1.Wait();
// 1: Set breakpoint in cat().
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_1, buffer));
host_dispatch_barriers->barrier_2.Wait();
// v8 thread starts compiling source_2.
// Break happens, to run queued commands and host dispatches.
// Wait for host dispatch to be processed.
host_dispatch_barriers->semaphore_1->Wait();
// 2: Continue evaluation
v8::Debug::SendCommand(buffer, AsciiToUtf16(command_2, buffer));
}
TEST(DebuggerHostDispatch) {
HostDispatchDebuggerThread host_dispatch_debugger_thread;
HostDispatchV8Thread host_dispatch_v8_thread;
i::FLAG_debugger_auto_break = true;
// Create a V8 environment
Barriers stack_allocated_host_dispatch_barriers;
stack_allocated_host_dispatch_barriers.Initialize();
host_dispatch_barriers = &stack_allocated_host_dispatch_barriers;
host_dispatch_v8_thread.Start();
host_dispatch_debugger_thread.Start();
host_dispatch_v8_thread.Join();
host_dispatch_debugger_thread.Join();
}
/* Test DebugMessageDispatch */
/* In this test, the V8 thread waits for a message from the debug thread.
* The DebugMessageDispatchHandler is executed from the debugger thread
* which signals the V8 thread to wake up.
*/
class DebugMessageDispatchV8Thread : public v8::internal::Thread {
public:
DebugMessageDispatchV8Thread() : Thread("DebugMessageDispatchV8Thread") { }
void Run();
};
class DebugMessageDispatchDebuggerThread : public v8::internal::Thread {
public:
DebugMessageDispatchDebuggerThread()
: Thread("DebugMessageDispatchDebuggerThread") { }
void Run();
};
Barriers* debug_message_dispatch_barriers;
static void DebugMessageHandler() {
debug_message_dispatch_barriers->semaphore_1->Signal();
}
void DebugMessageDispatchV8Thread::Run() {
v8::V8::Initialize();
v8::HandleScope scope;
DebugLocalContext env;
// Setup debug message dispatch handler.
v8::Debug::SetDebugMessageDispatchHandler(DebugMessageHandler);
CompileRun("var y = 1 + 2;\n");
debug_message_dispatch_barriers->barrier_1.Wait();
debug_message_dispatch_barriers->semaphore_1->Wait();
debug_message_dispatch_barriers->barrier_2.Wait();
}
void DebugMessageDispatchDebuggerThread::Run() {
debug_message_dispatch_barriers->barrier_1.Wait();
SendContinueCommand();
debug_message_dispatch_barriers->barrier_2.Wait();
}
TEST(DebuggerDebugMessageDispatch) {
DebugMessageDispatchDebuggerThread debug_message_dispatch_debugger_thread;
DebugMessageDispatchV8Thread debug_message_dispatch_v8_thread;
i::FLAG_debugger_auto_break = true;
// Create a V8 environment
Barriers stack_allocated_debug_message_dispatch_barriers;
stack_allocated_debug_message_dispatch_barriers.Initialize();
debug_message_dispatch_barriers =
&stack_allocated_debug_message_dispatch_barriers;
debug_message_dispatch_v8_thread.Start();
debug_message_dispatch_debugger_thread.Start();
debug_message_dispatch_v8_thread.Join();
debug_message_dispatch_debugger_thread.Join();
}
TEST(DebuggerAgent) {
v8::V8::Initialize();
i::Debugger* debugger = i::Isolate::Current()->debugger();
// Make sure these ports is not used by other tests to allow tests to run in
// parallel.
const int kPort1 = 5858;
const int kPort2 = 5857;
const int kPort3 = 5856;
// Make a string with the port2 number.
const int kPortBufferLen = 6;
char port2_str[kPortBufferLen];
OS::SNPrintF(i::Vector<char>(port2_str, kPortBufferLen), "%d", kPort2);
bool ok;
// Initialize the socket library.
i::Socket::Setup();
// Test starting and stopping the agent without any client connection.
debugger->StartAgent("test", kPort1);
debugger->StopAgent();
// Test starting the agent, connecting a client and shutting down the agent
// with the client connected.
ok = debugger->StartAgent("test", kPort2);
CHECK(ok);
debugger->WaitForAgent();
i::Socket* client = i::OS::CreateSocket();
ok = client->Connect("localhost", port2_str);
CHECK(ok);
// It is important to wait for a message from the agent. Otherwise,
// we can close the server socket during "accept" syscall, making it failing
// (at least on Linux), and the test will work incorrectly.
char buf;
ok = client->Receive(&buf, 1) == 1;
CHECK(ok);
debugger->StopAgent();
delete client;
// Test starting and stopping the agent with the required port already
// occoupied.
i::Socket* server = i::OS::CreateSocket();
server->Bind(kPort3);
debugger->StartAgent("test", kPort3);
debugger->StopAgent();
delete server;
}
class DebuggerAgentProtocolServerThread : public i::Thread {
public:
explicit DebuggerAgentProtocolServerThread(int port)
: Thread("DebuggerAgentProtocolServerThread"),
port_(port),
server_(NULL),
client_(NULL),
listening_(OS::CreateSemaphore(0)) {
}
~DebuggerAgentProtocolServerThread() {
// Close both sockets.
delete client_;
delete server_;
delete listening_;
}
void Run();
void WaitForListening() { listening_->Wait(); }
char* body() { return *body_; }
private:
int port_;
i::SmartArrayPointer<char> body_;
i::Socket* server_; // Server socket used for bind/accept.
i::Socket* client_; // Single client connection used by the test.
i::Semaphore* listening_; // Signalled when the server is in listen mode.
};
void DebuggerAgentProtocolServerThread::Run() {
bool ok;
// Create the server socket and bind it to the requested port.
server_ = i::OS::CreateSocket();
CHECK(server_ != NULL);
ok = server_->Bind(port_);
CHECK(ok);
// Listen for new connections.
ok = server_->Listen(1);
CHECK(ok);
listening_->Signal();
// Accept a connection.
client_ = server_->Accept();
CHECK(client_ != NULL);
// Receive a debugger agent protocol message.
i::DebuggerAgentUtil::ReceiveMessage(client_);
}
TEST(DebuggerAgentProtocolOverflowHeader) {
// Make sure this port is not used by other tests to allow tests to run in
// parallel.
const int kPort = 5860;
static const char* kLocalhost = "localhost";
// Make a string with the port number.
const int kPortBufferLen = 6;
char port_str[kPortBufferLen];
OS::SNPrintF(i::Vector<char>(port_str, kPortBufferLen), "%d", kPort);
// Initialize the socket library.
i::Socket::Setup();
// Create a socket server to receive a debugger agent message.
DebuggerAgentProtocolServerThread* server =
new DebuggerAgentProtocolServerThread(kPort);
server->Start();
server->WaitForListening();
// Connect.
i::Socket* client = i::OS::CreateSocket();
CHECK(client != NULL);
bool ok = client->Connect(kLocalhost, port_str);
CHECK(ok);
// Send headers which overflow the receive buffer.
static const int kBufferSize = 1000;
char buffer[kBufferSize];
// Long key and short value: XXXX....XXXX:0\r\n.
for (int i = 0; i < kBufferSize - 4; i++) {
buffer[i] = 'X';
}
buffer[kBufferSize - 4] = ':';
buffer[kBufferSize - 3] = '0';
buffer[kBufferSize - 2] = '\r';
buffer[kBufferSize - 1] = '\n';
client->Send(buffer, kBufferSize);
// Short key and long value: X:XXXX....XXXX\r\n.
buffer[0] = 'X';
buffer[1] = ':';
for (int i = 2; i < kBufferSize - 2; i++) {
buffer[i] = 'X';
}
buffer[kBufferSize - 2] = '\r';
buffer[kBufferSize - 1] = '\n';
client->Send(buffer, kBufferSize);
// Add empty body to request.
const char* content_length_zero_header = "Content-Length:0\r\n";
client->Send(content_length_zero_header,
StrLength(content_length_zero_header));
client->Send("\r\n", 2);
// Wait until data is received.
server->Join();
// Check for empty body.
CHECK(server->body() == NULL);
// Close the client before the server to avoid TIME_WAIT issues.
client->Shutdown();
delete client;
delete server;
}
// Test for issue http://code.google.com/p/v8/issues/detail?id=289.
// Make sure that DebugGetLoadedScripts doesn't return scripts
// with disposed external source.
class EmptyExternalStringResource : public v8::String::ExternalStringResource {
public:
EmptyExternalStringResource() { empty_[0] = 0; }
virtual ~EmptyExternalStringResource() {}
virtual size_t length() const { return empty_.length(); }
virtual const uint16_t* data() const { return empty_.start(); }
private:
::v8::internal::EmbeddedVector<uint16_t, 1> empty_;
};
TEST(DebugGetLoadedScripts) {
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
EmptyExternalStringResource source_ext_str;
v8::Local<v8::String> source = v8::String::NewExternal(&source_ext_str);
v8::Handle<v8::Script> evil_script(v8::Script::Compile(source));
Handle<i::ExternalTwoByteString> i_source(
i::ExternalTwoByteString::cast(*v8::Utils::OpenHandle(*source)));
// This situation can happen if source was an external string disposed
// by its owner.
i_source->set_resource(0);
bool allow_natives_syntax = i::FLAG_allow_natives_syntax;
i::FLAG_allow_natives_syntax = true;
CompileRun(
"var scripts = %DebugGetLoadedScripts();"
"var count = scripts.length;"
"for (var i = 0; i < count; ++i) {"
" scripts[i].line_ends;"
"}");
// Must not crash while accessing line_ends.
i::FLAG_allow_natives_syntax = allow_natives_syntax;
// Some scripts are retrieved - at least the number of native scripts.
CHECK_GT((*env)->Global()->Get(v8::String::New("count"))->Int32Value(), 8);
}
// Test script break points set on lines.
TEST(ScriptNameAndData) {
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
// Create functions for retrieving script name and data for the function on
// the top frame when hitting a break point.
frame_script_name = CompileFunction(&env,
frame_script_name_source,
"frame_script_name");
frame_script_data = CompileFunction(&env,
frame_script_data_source,
"frame_script_data");
compiled_script_data = CompileFunction(&env,
compiled_script_data_source,
"compiled_script_data");
v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount,
v8::Undefined());
// Test function source.
v8::Local<v8::String> script = v8::String::New(
"function f() {\n"
" debugger;\n"
"}\n");
v8::ScriptOrigin origin1 = v8::ScriptOrigin(v8::String::New("name"));
v8::Handle<v8::Script> script1 = v8::Script::Compile(script, &origin1);
script1->SetData(v8::String::New("data"));
script1->Run();
v8::Local<v8::Function> f;
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
f->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
CHECK_EQ("name", last_script_name_hit);
CHECK_EQ("data", last_script_data_hit);
// Compile the same script again without setting data. As the compilation
// cache is disabled when debugging expect the data to be missing.
v8::Script::Compile(script, &origin1)->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, break_point_hit_count);
CHECK_EQ("name", last_script_name_hit);
CHECK_EQ("", last_script_data_hit); // Undefined results in empty string.
v8::Local<v8::String> data_obj_source = v8::String::New(
"({ a: 'abc',\n"
" b: 123,\n"
" toString: function() { return this.a + ' ' + this.b; }\n"
"})\n");
v8::Local<v8::Value> data_obj = v8::Script::Compile(data_obj_source)->Run();
v8::ScriptOrigin origin2 = v8::ScriptOrigin(v8::String::New("new name"));
v8::Handle<v8::Script> script2 = v8::Script::Compile(script, &origin2);
script2->Run();
script2->SetData(data_obj->ToString());
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
f->Call(env->Global(), 0, NULL);
CHECK_EQ(3, break_point_hit_count);
CHECK_EQ("new name", last_script_name_hit);
CHECK_EQ("abc 123", last_script_data_hit);
v8::Handle<v8::Script> script3 =
v8::Script::Compile(script, &origin2, NULL,
v8::String::New("in compile"));
CHECK_EQ("in compile", last_script_data_hit);
script3->Run();
f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
f->Call(env->Global(), 0, NULL);
CHECK_EQ(4, break_point_hit_count);
CHECK_EQ("in compile", last_script_data_hit);
}
static v8::Persistent<v8::Context> expected_context;
static v8::Handle<v8::Value> expected_context_data;
// Check that the expected context is the one generating the debug event.
static void ContextCheckMessageHandler(const v8::Debug::Message& message) {
CHECK(message.GetEventContext() == expected_context);
CHECK(message.GetEventContext()->GetData()->StrictEquals(
expected_context_data));
message_handler_hit_count++;
static char print_buffer[1000];
v8::String::Value json(message.GetJSON());
Utf16ToAscii(*json, json.length(), print_buffer);
// Send a continue command for break events.
if (IsBreakEventMessage(print_buffer)) {
SendContinueCommand();
}
}
// Test which creates two contexts and sets different embedder data on each.
// Checks that this data is set correctly and that when the debug message
// handler is called the expected context is the one active.
TEST(ContextData) {
v8::HandleScope scope;
v8::Debug::SetMessageHandler2(ContextCheckMessageHandler);
// Create two contexts.
v8::Persistent<v8::Context> context_1;
v8::Persistent<v8::Context> context_2;
v8::Handle<v8::ObjectTemplate> global_template =
v8::Handle<v8::ObjectTemplate>();
v8::Handle<v8::Value> global_object = v8::Handle<v8::Value>();
context_1 = v8::Context::New(NULL, global_template, global_object);
context_2 = v8::Context::New(NULL, global_template, global_object);
// Default data value is undefined.
CHECK(context_1->GetData()->IsUndefined());
CHECK(context_2->GetData()->IsUndefined());
// Set and check different data values.
v8::Handle<v8::String> data_1 = v8::String::New("1");
v8::Handle<v8::String> data_2 = v8::String::New("2");
context_1->SetData(data_1);
context_2->SetData(data_2);
CHECK(context_1->GetData()->StrictEquals(data_1));
CHECK(context_2->GetData()->StrictEquals(data_2));
// Simple test function which causes a break.
const char* source = "function f() { debugger; }";
// Enter and run function in the first context.
{
v8::Context::Scope context_scope(context_1);
expected_context = context_1;
expected_context_data = data_1;
v8::Local<v8::Function> f = CompileFunction(source, "f");
f->Call(context_1->Global(), 0, NULL);
}
// Enter and run function in the second context.
{
v8::Context::Scope context_scope(context_2);
expected_context = context_2;
expected_context_data = data_2;
v8::Local<v8::Function> f = CompileFunction(source, "f");
f->Call(context_2->Global(), 0, NULL);
}
// Two times compile event and two times break event.
CHECK_GT(message_handler_hit_count, 4);
v8::Debug::SetMessageHandler2(NULL);
CheckDebuggerUnloaded();
}
// Debug message handler which issues a debug break when it hits a break event.
static int message_handler_break_hit_count = 0;
static void DebugBreakMessageHandler(const v8::Debug::Message& message) {
// Schedule a debug break for break events.
if (message.IsEvent() && message.GetEvent() == v8::Break) {
message_handler_break_hit_count++;
if (message_handler_break_hit_count == 1) {
v8::Debug::DebugBreak();
}
}
// Issue a continue command if this event will not cause the VM to start
// running.
if (!message.WillStartRunning()) {
SendContinueCommand();
}
}
// Test that a debug break can be scheduled while in a message handler.
TEST(DebugBreakInMessageHandler) {
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetMessageHandler2(DebugBreakMessageHandler);
// Test functions.
const char* script = "function f() { debugger; g(); } function g() { }";
CompileRun(script);
v8::Local<v8::Function> f =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
v8::Local<v8::Function> g =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("g")));
// Call f then g. The debugger statement in f will casue a break which will
// cause another break.
f->Call(env->Global(), 0, NULL);
CHECK_EQ(2, message_handler_break_hit_count);
// Calling g will not cause any additional breaks.
g->Call(env->Global(), 0, NULL);
CHECK_EQ(2, message_handler_break_hit_count);
}
#ifndef V8_INTERPRETED_REGEXP
// Debug event handler which gets the function on the top frame and schedules a
// break a number of times.
static void DebugEventDebugBreak(
v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
if (event == v8::Break) {
break_point_hit_count++;
// Get the name of the top frame function.
if (!frame_function_name.IsEmpty()) {
// Get the name of the function.
const int argc = 2;
v8::Handle<v8::Value> argv[argc] = { exec_state, v8::Integer::New(0) };
v8::Handle<v8::Value> result = frame_function_name->Call(exec_state,
argc, argv);
if (result->IsUndefined()) {
last_function_hit[0] = '\0';
} else {
CHECK(result->IsString());
v8::Handle<v8::String> function_name(result->ToString());
function_name->WriteAscii(last_function_hit);
}
}
// Keep forcing breaks.
if (break_point_hit_count < 20) {
v8::Debug::DebugBreak();
}
}
}
TEST(RegExpDebugBreak) {
// This test only applies to native regexps.
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for checking the function when hitting a break point.
frame_function_name = CompileFunction(&env,
frame_function_name_source,
"frame_function_name");
// Test RegExp which matches white spaces and comments at the begining of a
// source line.
const char* script =
"var sourceLineBeginningSkip = /^(?:[ \\v\\h]*(?:\\/\\*.*?\\*\\/)*)*/;\n"
"function f(s) { return s.match(sourceLineBeginningSkip)[0].length; }";
v8::Local<v8::Function> f = CompileFunction(script, "f");
const int argc = 1;
v8::Handle<v8::Value> argv[argc] = { v8::String::New(" /* xxx */ a=0;") };
v8::Local<v8::Value> result = f->Call(env->Global(), argc, argv);
CHECK_EQ(12, result->Int32Value());
v8::Debug::SetDebugEventListener(DebugEventDebugBreak);
v8::Debug::DebugBreak();
result = f->Call(env->Global(), argc, argv);
// Check that there was only one break event. Matching RegExp should not
// cause Break events.
CHECK_EQ(1, break_point_hit_count);
CHECK_EQ("f", last_function_hit);
}
#endif // V8_INTERPRETED_REGEXP
// Common part of EvalContextData and NestedBreakEventContextData tests.
static void ExecuteScriptForContextCheck() {
// Create a context.
v8::Persistent<v8::Context> context_1;
v8::Handle<v8::ObjectTemplate> global_template =
v8::Handle<v8::ObjectTemplate>();
context_1 = v8::Context::New(NULL, global_template);
// Default data value is undefined.
CHECK(context_1->GetData()->IsUndefined());
// Set and check a data value.
v8::Handle<v8::String> data_1 = v8::String::New("1");
context_1->SetData(data_1);
CHECK(context_1->GetData()->StrictEquals(data_1));
// Simple test function with eval that causes a break.
const char* source = "function f() { eval('debugger;'); }";
// Enter and run function in the context.
{
v8::Context::Scope context_scope(context_1);
expected_context = context_1;
expected_context_data = data_1;
v8::Local<v8::Function> f = CompileFunction(source, "f");
f->Call(context_1->Global(), 0, NULL);
}
}
// Test which creates a context and sets embedder data on it. Checks that this
// data is set correctly and that when the debug message handler is called for
// break event in an eval statement the expected context is the one returned by
// Message.GetEventContext.
TEST(EvalContextData) {
v8::HandleScope scope;
v8::Debug::SetMessageHandler2(ContextCheckMessageHandler);
ExecuteScriptForContextCheck();
// One time compile event and one time break event.
CHECK_GT(message_handler_hit_count, 2);
v8::Debug::SetMessageHandler2(NULL);
CheckDebuggerUnloaded();
}
static bool sent_eval = false;
static int break_count = 0;
static int continue_command_send_count = 0;
// Check that the expected context is the one generating the debug event
// including the case of nested break event.
static void DebugEvalContextCheckMessageHandler(
const v8::Debug::Message& message) {
CHECK(message.GetEventContext() == expected_context);
CHECK(message.GetEventContext()->GetData()->StrictEquals(
expected_context_data));
message_handler_hit_count++;
static char print_buffer[1000];
v8::String::Value json(message.GetJSON());
Utf16ToAscii(*json, json.length(), print_buffer);
if (IsBreakEventMessage(print_buffer)) {
break_count++;
if (!sent_eval) {
sent_eval = true;
const int kBufferSize = 1000;
uint16_t buffer[kBufferSize];
const char* eval_command =
"{\"seq\":0,"
"\"type\":\"request\","
"\"command\":\"evaluate\","
"\"arguments\":{\"expression\":\"debugger;\","
"\"global\":true,\"disable_break\":false}}";
// Send evaluate command.
v8::Debug::SendCommand(buffer, AsciiToUtf16(eval_command, buffer));
return;
} else {
// It's a break event caused by the evaluation request above.
SendContinueCommand();
continue_command_send_count++;
}
} else if (IsEvaluateResponseMessage(print_buffer) &&
continue_command_send_count < 2) {
// Response to the evaluation request. We're still on the breakpoint so
// send continue.
SendContinueCommand();
continue_command_send_count++;
}
}
// Tests that context returned for break event is correct when the event occurs
// in 'evaluate' debugger request.
TEST(NestedBreakEventContextData) {
v8::HandleScope scope;
break_count = 0;
message_handler_hit_count = 0;
v8::Debug::SetMessageHandler2(DebugEvalContextCheckMessageHandler);
ExecuteScriptForContextCheck();
// One time compile event and two times break event.
CHECK_GT(message_handler_hit_count, 3);
// One break from the source and another from the evaluate request.
CHECK_EQ(break_count, 2);
v8::Debug::SetMessageHandler2(NULL);
CheckDebuggerUnloaded();
}
// Debug event listener which counts the script collected events.
int script_collected_count = 0;
static void DebugEventScriptCollectedEvent(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
// Count the number of breaks.
if (event == v8::ScriptCollected) {
script_collected_count++;
}
}
// Test that scripts collected are reported through the debug event listener.
TEST(ScriptCollectedEvent) {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
break_point_hit_count = 0;
script_collected_count = 0;
v8::HandleScope scope;
DebugLocalContext env;
// Request the loaded scripts to initialize the debugger script cache.
debug->GetLoadedScripts();
// Do garbage collection to ensure that only the script in this test will be
// collected afterwards.
HEAP->CollectAllGarbage(Heap::kNoGCFlags);
script_collected_count = 0;
v8::Debug::SetDebugEventListener(DebugEventScriptCollectedEvent,
v8::Undefined());
{
v8::Script::Compile(v8::String::New("eval('a=1')"))->Run();
v8::Script::Compile(v8::String::New("eval('a=2')"))->Run();
}
// Do garbage collection to collect the script above which is no longer
// referenced.
HEAP->CollectAllGarbage(Heap::kNoGCFlags);
CHECK_EQ(2, script_collected_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
// Debug event listener which counts the script collected events.
int script_collected_message_count = 0;
static void ScriptCollectedMessageHandler(const v8::Debug::Message& message) {
// Count the number of scripts collected.
if (message.IsEvent() && message.GetEvent() == v8::ScriptCollected) {
script_collected_message_count++;
v8::Handle<v8::Context> context = message.GetEventContext();
CHECK(context.IsEmpty());
}
}
// Test that GetEventContext doesn't fail and return empty handle for
// ScriptCollected events.
TEST(ScriptCollectedEventContext) {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
script_collected_message_count = 0;
v8::HandleScope scope;
{ // Scope for the DebugLocalContext.
DebugLocalContext env;
// Request the loaded scripts to initialize the debugger script cache.
debug->GetLoadedScripts();
// Do garbage collection to ensure that only the script in this test will be
// collected afterwards.
HEAP->CollectAllGarbage(Heap::kNoGCFlags);
v8::Debug::SetMessageHandler2(ScriptCollectedMessageHandler);
{
v8::Script::Compile(v8::String::New("eval('a=1')"))->Run();
v8::Script::Compile(v8::String::New("eval('a=2')"))->Run();
}
}
// Do garbage collection to collect the script above which is no longer
// referenced.
HEAP->CollectAllGarbage(Heap::kNoGCFlags);
CHECK_EQ(2, script_collected_message_count);
v8::Debug::SetMessageHandler2(NULL);
}
// Debug event listener which counts the after compile events.
int after_compile_message_count = 0;
static void AfterCompileMessageHandler(const v8::Debug::Message& message) {
// Count the number of scripts collected.
if (message.IsEvent()) {
if (message.GetEvent() == v8::AfterCompile) {
after_compile_message_count++;
} else if (message.GetEvent() == v8::Break) {
SendContinueCommand();
}
}
}
// Tests that after compile event is sent as many times as there are scripts
// compiled.
TEST(AfterCompileMessageWhenMessageHandlerIsReset) {
v8::HandleScope scope;
DebugLocalContext env;
after_compile_message_count = 0;
const char* script = "var a=1";
v8::Debug::SetMessageHandler2(AfterCompileMessageHandler);
v8::Script::Compile(v8::String::New(script))->Run();
v8::Debug::SetMessageHandler2(NULL);
v8::Debug::SetMessageHandler2(AfterCompileMessageHandler);
v8::Debug::DebugBreak();
v8::Script::Compile(v8::String::New(script))->Run();
// Setting listener to NULL should cause debugger unload.
v8::Debug::SetMessageHandler2(NULL);
CheckDebuggerUnloaded();
// Compilation cache should be disabled when debugger is active.
CHECK_EQ(2, after_compile_message_count);
}
// Tests that break event is sent when message handler is reset.
TEST(BreakMessageWhenMessageHandlerIsReset) {
v8::HandleScope scope;
DebugLocalContext env;
after_compile_message_count = 0;
const char* script = "function f() {};";
v8::Debug::SetMessageHandler2(AfterCompileMessageHandler);
v8::Script::Compile(v8::String::New(script))->Run();
v8::Debug::SetMessageHandler2(NULL);
v8::Debug::SetMessageHandler2(AfterCompileMessageHandler);
v8::Debug::DebugBreak();
v8::Local<v8::Function> f =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
f->Call(env->Global(), 0, NULL);
// Setting message handler to NULL should cause debugger unload.
v8::Debug::SetMessageHandler2(NULL);
CheckDebuggerUnloaded();
// Compilation cache should be disabled when debugger is active.
CHECK_EQ(1, after_compile_message_count);
}
static int exception_event_count = 0;
static void ExceptionMessageHandler(const v8::Debug::Message& message) {
if (message.IsEvent() && message.GetEvent() == v8::Exception) {
exception_event_count++;
SendContinueCommand();
}
}
// Tests that exception event is sent when message handler is reset.
TEST(ExceptionMessageWhenMessageHandlerIsReset) {
v8::HandleScope scope;
DebugLocalContext env;
// For this test, we want to break on uncaught exceptions:
ChangeBreakOnException(false, true);
exception_event_count = 0;
const char* script = "function f() {throw new Error()};";
v8::Debug::SetMessageHandler2(AfterCompileMessageHandler);
v8::Script::Compile(v8::String::New(script))->Run();
v8::Debug::SetMessageHandler2(NULL);
v8::Debug::SetMessageHandler2(ExceptionMessageHandler);
v8::Local<v8::Function> f =
v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f")));
f->Call(env->Global(), 0, NULL);
// Setting message handler to NULL should cause debugger unload.
v8::Debug::SetMessageHandler2(NULL);
CheckDebuggerUnloaded();
CHECK_EQ(1, exception_event_count);
}
// Tests after compile event is sent when there are some provisional
// breakpoints out of the scripts lines range.
TEST(ProvisionalBreakpointOnLineOutOfRange) {
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
const char* script = "function f() {};";
const char* resource_name = "test_resource";
// Set a couple of provisional breakpoint on lines out of the script lines
// range.
int sbp1 = SetScriptBreakPointByNameFromJS(resource_name, 3,
-1 /* no column */);
int sbp2 = SetScriptBreakPointByNameFromJS(resource_name, 5, 5);
after_compile_message_count = 0;
v8::Debug::SetMessageHandler2(AfterCompileMessageHandler);
v8::ScriptOrigin origin(
v8::String::New(resource_name),
v8::Integer::New(10),
v8::Integer::New(1));
// Compile a script whose first line number is greater than the breakpoints'
// lines.
v8::Script::Compile(v8::String::New(script), &origin)->Run();
// If the script is compiled successfully there is exactly one after compile
// event. In case of an exception in debugger code after compile event is not
// sent.
CHECK_EQ(1, after_compile_message_count);
ClearBreakPointFromJS(sbp1);
ClearBreakPointFromJS(sbp2);
v8::Debug::SetMessageHandler2(NULL);
}
static void BreakMessageHandler(const v8::Debug::Message& message) {
i::Isolate* isolate = i::Isolate::Current();
if (message.IsEvent() && message.GetEvent() == v8::Break) {
// Count the number of breaks.
break_point_hit_count++;
v8::HandleScope scope;
v8::Handle<v8::String> json(message.GetJSON());
SendContinueCommand();
} else if (message.IsEvent() && message.GetEvent() == v8::AfterCompile) {
v8::HandleScope scope;
bool is_debug_break = isolate->stack_guard()->IsDebugBreak();
// Force DebugBreak flag while serializer is working.
isolate->stack_guard()->DebugBreak();
// Force serialization to trigger some internal JS execution.
v8::Handle<v8::String> json(message.GetJSON());
// Restore previous state.
if (is_debug_break) {
isolate->stack_guard()->DebugBreak();
} else {
isolate->stack_guard()->Continue(i::DEBUGBREAK);
}
}
}
// Test that if DebugBreak is forced it is ignored when code from
// debug-delay.js is executed.
TEST(NoDebugBreakInAfterCompileMessageHandler) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which sets the break flag and counts.
v8::Debug::SetMessageHandler2(BreakMessageHandler);
// Set the debug break flag.
v8::Debug::DebugBreak();
// Create a function for testing stepping.
const char* src = "function f() { eval('var x = 10;'); } ";
v8::Local<v8::Function> f = CompileFunction(&env, src, "f");
// There should be only one break event.
CHECK_EQ(1, break_point_hit_count);
// Set the debug break flag again.
v8::Debug::DebugBreak();
f->Call(env->Global(), 0, NULL);
// There should be one more break event when the script is evaluated in 'f'.
CHECK_EQ(2, break_point_hit_count);
// Get rid of the debug message handler.
v8::Debug::SetMessageHandler2(NULL);
CheckDebuggerUnloaded();
}
static int counting_message_handler_counter;
static void CountingMessageHandler(const v8::Debug::Message& message) {
counting_message_handler_counter++;
}
// Test that debug messages get processed when ProcessDebugMessages is called.
TEST(ProcessDebugMessages) {
v8::HandleScope scope;
DebugLocalContext env;
counting_message_handler_counter = 0;
v8::Debug::SetMessageHandler2(CountingMessageHandler);
const int kBufferSize = 1000;
uint16_t buffer[kBufferSize];
const char* scripts_command =
"{\"seq\":0,"
"\"type\":\"request\","
"\"command\":\"scripts\"}";
// Send scripts command.
v8::Debug::SendCommand(buffer, AsciiToUtf16(scripts_command, buffer));
CHECK_EQ(0, counting_message_handler_counter);
v8::Debug::ProcessDebugMessages();
// At least one message should come
CHECK_GE(counting_message_handler_counter, 1);
counting_message_handler_counter = 0;
v8::Debug::SendCommand(buffer, AsciiToUtf16(scripts_command, buffer));
v8::Debug::SendCommand(buffer, AsciiToUtf16(scripts_command, buffer));
CHECK_EQ(0, counting_message_handler_counter);
v8::Debug::ProcessDebugMessages();
// At least two messages should come
CHECK_GE(counting_message_handler_counter, 2);
// Get rid of the debug message handler.
v8::Debug::SetMessageHandler2(NULL);
CheckDebuggerUnloaded();
}
struct BacktraceData {
static int frame_counter;
static void MessageHandler(const v8::Debug::Message& message) {
char print_buffer[1000];
v8::String::Value json(message.GetJSON());
Utf16ToAscii(*json, json.length(), print_buffer, 1000);
if (strstr(print_buffer, "backtrace") == NULL) {
return;
}
frame_counter = GetTotalFramesInt(print_buffer);
}
};
int BacktraceData::frame_counter;
// Test that debug messages get processed when ProcessDebugMessages is called.
TEST(Backtrace) {
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetMessageHandler2(BacktraceData::MessageHandler);
const int kBufferSize = 1000;
uint16_t buffer[kBufferSize];
const char* scripts_command =
"{\"seq\":0,"
"\"type\":\"request\","
"\"command\":\"backtrace\"}";
// Check backtrace from ProcessDebugMessages.
BacktraceData::frame_counter = -10;
v8::Debug::SendCommand(buffer, AsciiToUtf16(scripts_command, buffer));
v8::Debug::ProcessDebugMessages();
CHECK_EQ(BacktraceData::frame_counter, 0);
v8::Handle<v8::String> void0 = v8::String::New("void(0)");
v8::Handle<v8::Script> script = v8::Script::Compile(void0, void0);
// Check backtrace from "void(0)" script.
BacktraceData::frame_counter = -10;
v8::Debug::SendCommand(buffer, AsciiToUtf16(scripts_command, buffer));
script->Run();
CHECK_EQ(BacktraceData::frame_counter, 1);
// Get rid of the debug message handler.
v8::Debug::SetMessageHandler2(NULL);
CheckDebuggerUnloaded();
}
TEST(GetMirror) {
v8::HandleScope scope;
DebugLocalContext env;
v8::Handle<v8::Value> obj = v8::Debug::GetMirror(v8::String::New("hodja"));
v8::Handle<v8::Function> run_test = v8::Handle<v8::Function>::Cast(
v8::Script::New(
v8::String::New(
"function runTest(mirror) {"
" return mirror.isString() && (mirror.length() == 5);"
"}"
""
"runTest;"))->Run());
v8::Handle<v8::Value> result = run_test->Call(env->Global(), 1, &obj);
CHECK(result->IsTrue());
}
// Test that the debug break flag works with function.apply.
TEST(DebugBreakFunctionApply) {
v8::HandleScope scope;
DebugLocalContext env;
// Create a function for testing breaking in apply.
v8::Local<v8::Function> foo = CompileFunction(
&env,
"function baz(x) { }"
"function bar(x) { baz(); }"
"function foo(){ bar.apply(this, [1]); }",
"foo");
// Register a debug event listener which steps and counts.
v8::Debug::SetDebugEventListener(DebugEventBreakMax);
// Set the debug break flag before calling the code using function.apply.
v8::Debug::DebugBreak();
// Limit the number of debug breaks. This is a regression test for issue 493
// where this test would enter an infinite loop.
break_point_hit_count = 0;
max_break_point_hit_count = 10000; // 10000 => infinite loop.
foo->Call(env->Global(), 0, NULL);
// When keeping the debug break several break will happen.
CHECK_EQ(3, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
v8::Handle<v8::Context> debugee_context;
v8::Handle<v8::Context> debugger_context;
// Property getter that checks that current and calling contexts
// are both the debugee contexts.
static v8::Handle<v8::Value> NamedGetterWithCallingContextCheck(
v8::Local<v8::String> name,
const v8::AccessorInfo& info) {
CHECK_EQ(0, strcmp(*v8::String::AsciiValue(name), "a"));
v8::Handle<v8::Context> current = v8::Context::GetCurrent();
CHECK(current == debugee_context);
CHECK(current != debugger_context);
v8::Handle<v8::Context> calling = v8::Context::GetCalling();
CHECK(calling == debugee_context);
CHECK(calling != debugger_context);
return v8::Int32::New(1);
}
// Debug event listener that checks if the first argument of a function is
// an object with property 'a' == 1. If the property has custom accessor
// this handler will eventually invoke it.
static void DebugEventGetAtgumentPropertyValue(
v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
if (event == v8::Break) {
break_point_hit_count++;
CHECK(debugger_context == v8::Context::GetCurrent());
v8::Handle<v8::Function> func(v8::Function::Cast(*CompileRun(
"(function(exec_state) {\n"
" return (exec_state.frame(0).argumentValue(0).property('a').\n"
" value().value() == 1);\n"
"})")));
const int argc = 1;
v8::Handle<v8::Value> argv[argc] = { exec_state };
v8::Handle<v8::Value> result = func->Call(exec_state, argc, argv);
CHECK(result->IsTrue());
}
}
TEST(CallingContextIsNotDebugContext) {
v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug();
// Create and enter a debugee context.
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
// Save handles to the debugger and debugee contexts to be used in
// NamedGetterWithCallingContextCheck.
debugee_context = v8::Local<v8::Context>(*env);
debugger_context = v8::Utils::ToLocal(debug->debug_context());
// Create object with 'a' property accessor.
v8::Handle<v8::ObjectTemplate> named = v8::ObjectTemplate::New();
named->SetAccessor(v8::String::New("a"),
NamedGetterWithCallingContextCheck);
env->Global()->Set(v8::String::New("obj"),
named->NewInstance());
// Register the debug event listener
v8::Debug::SetDebugEventListener(DebugEventGetAtgumentPropertyValue);
// Create a function that invokes debugger.
v8::Local<v8::Function> foo = CompileFunction(
&env,
"function bar(x) { debugger; }"
"function foo(){ bar(obj); }",
"foo");
break_point_hit_count = 0;
foo->Call(env->Global(), 0, NULL);
CHECK_EQ(1, break_point_hit_count);
v8::Debug::SetDebugEventListener(NULL);
debugee_context = v8::Handle<v8::Context>();
debugger_context = v8::Handle<v8::Context>();
CheckDebuggerUnloaded();
}
TEST(DebugContextIsPreservedBetweenAccesses) {
v8::HandleScope scope;
v8::Local<v8::Context> context1 = v8::Debug::GetDebugContext();
v8::Local<v8::Context> context2 = v8::Debug::GetDebugContext();
CHECK_EQ(*context1, *context2);
}
static v8::Handle<v8::Value> expected_callback_data;
static void DebugEventContextChecker(const v8::Debug::EventDetails& details) {
CHECK(details.GetEventContext() == expected_context);
CHECK_EQ(expected_callback_data, details.GetCallbackData());
}
// Check that event details contain context where debug event occured.
TEST(DebugEventContext) {
v8::HandleScope scope;
expected_callback_data = v8::Int32::New(2010);
v8::Debug::SetDebugEventListener2(DebugEventContextChecker,
expected_callback_data);
expected_context = v8::Context::New();
v8::Context::Scope context_scope(expected_context);
v8::Script::Compile(v8::String::New("(function(){debugger;})();"))->Run();
expected_context.Dispose();
expected_context.Clear();
v8::Debug::SetDebugEventListener(NULL);
expected_context_data = v8::Handle<v8::Value>();
CheckDebuggerUnloaded();
}
static void* expected_break_data;
static bool was_debug_break_called;
static bool was_debug_event_called;
static void DebugEventBreakDataChecker(const v8::Debug::EventDetails& details) {
if (details.GetEvent() == v8::BreakForCommand) {
CHECK_EQ(expected_break_data, details.GetClientData());
was_debug_event_called = true;
} else if (details.GetEvent() == v8::Break) {
was_debug_break_called = true;
}
}
// Check that event details contain context where debug event occured.
TEST(DebugEventBreakData) {
v8::HandleScope scope;
DebugLocalContext env;
v8::Debug::SetDebugEventListener2(DebugEventBreakDataChecker);
TestClientData::constructor_call_counter = 0;
TestClientData::destructor_call_counter = 0;
expected_break_data = NULL;
was_debug_event_called = false;
was_debug_break_called = false;
v8::Debug::DebugBreakForCommand();
v8::Script::Compile(v8::String::New("(function(x){return x;})(1);"))->Run();
CHECK(was_debug_event_called);
CHECK(!was_debug_break_called);
TestClientData* data1 = new TestClientData();
expected_break_data = data1;
was_debug_event_called = false;
was_debug_break_called = false;
v8::Debug::DebugBreakForCommand(data1);
v8::Script::Compile(v8::String::New("(function(x){return x+1;})(1);"))->Run();
CHECK(was_debug_event_called);
CHECK(!was_debug_break_called);
expected_break_data = NULL;
was_debug_event_called = false;
was_debug_break_called = false;
v8::Debug::DebugBreak();
v8::Script::Compile(v8::String::New("(function(x){return x+2;})(1);"))->Run();
CHECK(!was_debug_event_called);
CHECK(was_debug_break_called);
TestClientData* data2 = new TestClientData();
expected_break_data = data2;
was_debug_event_called = false;
was_debug_break_called = false;
v8::Debug::DebugBreak();
v8::Debug::DebugBreakForCommand(data2);
v8::Script::Compile(v8::String::New("(function(x){return x+3;})(1);"))->Run();
CHECK(was_debug_event_called);
CHECK(was_debug_break_called);
CHECK_EQ(2, TestClientData::constructor_call_counter);
CHECK_EQ(TestClientData::constructor_call_counter,
TestClientData::destructor_call_counter);
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
static bool debug_event_break_deoptimize_done = false;
static void DebugEventBreakDeoptimize(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
if (event == v8::Break) {
if (!frame_function_name.IsEmpty()) {
// Get the name of the function.
const int argc = 2;
v8::Handle<v8::Value> argv[argc] = { exec_state, v8::Integer::New(0) };
v8::Handle<v8::Value> result =
frame_function_name->Call(exec_state, argc, argv);
if (!result->IsUndefined()) {
char fn[80];
CHECK(result->IsString());
v8::Handle<v8::String> function_name(result->ToString());
function_name->WriteAscii(fn);
if (strcmp(fn, "bar") == 0) {
i::Deoptimizer::DeoptimizeAll();
debug_event_break_deoptimize_done = true;
}
}
}
v8::Debug::DebugBreak();
}
}
// Test deoptimization when execution is broken using the debug break stack
// check interrupt.
TEST(DeoptimizeDuringDebugBreak) {
v8::HandleScope scope;
DebugLocalContext env;
env.ExposeDebug();
// Create a function for checking the function when hitting a break point.
frame_function_name = CompileFunction(&env,
frame_function_name_source,
"frame_function_name");
// Set a debug event listener which will keep interrupting execution until
// debug break. When inside function bar it will deoptimize all functions.
// This tests lazy deoptimization bailout for the stack check, as the first
// time in function bar when using debug break and no break points will be at
// the initial stack check.
v8::Debug::SetDebugEventListener(DebugEventBreakDeoptimize,
v8::Undefined());
// Compile and run function bar which will optimize it for some flag settings.
v8::Script::Compile(v8::String::New("function bar(){}; bar()"))->Run();
// Set debug break and call bar again.
v8::Debug::DebugBreak();
v8::Script::Compile(v8::String::New("bar()"))->Run();
CHECK(debug_event_break_deoptimize_done);
v8::Debug::SetDebugEventListener(NULL);
}
static void DebugEventBreakWithOptimizedStack(v8::DebugEvent event,
v8::Handle<v8::Object> exec_state,
v8::Handle<v8::Object> event_data,
v8::Handle<v8::Value> data) {
if (event == v8::Break) {
if (!frame_function_name.IsEmpty()) {
for (int i = 0; i < 2; i++) {
const int argc = 2;
v8::Handle<v8::Value> argv[argc] = { exec_state, v8::Integer::New(i) };
// Get the name of the function in frame i.
v8::Handle<v8::Value> result =
frame_function_name->Call(exec_state, argc, argv);
CHECK(result->IsString());
v8::Handle<v8::String> function_name(result->ToString());
CHECK(function_name->Equals(v8::String::New("loop")));
// Get the name of the first argument in frame i.
result = frame_argument_name->Call(exec_state, argc, argv);
CHECK(result->IsString());
v8::Handle<v8::String> argument_name(result->ToString());
CHECK(argument_name->Equals(v8::String::New("count")));
// Get the value of the first argument in frame i. If the
// funtion is optimized the value will be undefined, otherwise
// the value will be '1 - i'.
//
// TODO(3141533): We should be able to get the real value for
// optimized frames.
result = frame_argument_value->Call(exec_state, argc, argv);
CHECK(result->IsUndefined() || (result->Int32Value() == 1 - i));
// Get the name of the first local variable.
result = frame_local_name->Call(exec_state, argc, argv);
CHECK(result->IsString());
v8::Handle<v8::String> local_name(result->ToString());
CHECK(local_name->Equals(v8::String::New("local")));
// Get the value of the first local variable. If the function
// is optimized the value will be undefined, otherwise it will
// be 42.
//
// TODO(3141533): We should be able to get the real value for
// optimized frames.
result = frame_local_value->Call(exec_state, argc, argv);
CHECK(result->IsUndefined() || (result->Int32Value() == 42));
}
}
}
}
static v8::Handle<v8::Value> ScheduleBreak(const v8::Arguments& args) {
v8::Debug::SetDebugEventListener(DebugEventBreakWithOptimizedStack,
v8::Undefined());
v8::Debug::DebugBreak();
return v8::Undefined();
}
TEST(DebugBreakStackInspection) {
v8::HandleScope scope;
DebugLocalContext env;
frame_function_name =
CompileFunction(&env, frame_function_name_source, "frame_function_name");
frame_argument_name =
CompileFunction(&env, frame_argument_name_source, "frame_argument_name");
frame_argument_value = CompileFunction(&env,
frame_argument_value_source,
"frame_argument_value");
frame_local_name =
CompileFunction(&env, frame_local_name_source, "frame_local_name");
frame_local_value =
CompileFunction(&env, frame_local_value_source, "frame_local_value");
v8::Handle<v8::FunctionTemplate> schedule_break_template =
v8::FunctionTemplate::New(ScheduleBreak);
v8::Handle<v8::Function> schedule_break =
schedule_break_template->GetFunction();
env->Global()->Set(v8_str("scheduleBreak"), schedule_break);
const char* src =
"function loop(count) {"
" var local = 42;"
" if (count < 1) { scheduleBreak(); loop(count + 1); }"
"}"
"loop(0);";
v8::Script::Compile(v8::String::New(src))->Run();
}
// Test that setting the terminate execution flag during debug break processing.
static void TestDebugBreakInLoop(const char* loop_head,
const char** loop_bodies,
const char* loop_tail) {
// Receive 100 breaks for each test and then terminate JavaScript execution.
static const int kBreaksPerTest = 100;
for (int i = 0; i < 1 && loop_bodies[i] != NULL; i++) {
// Perform a lazy deoptimization after various numbers of breaks
// have been hit.
for (int j = 0; j < 10; j++) {
break_point_hit_count_deoptimize = j;
if (j == 10) {
break_point_hit_count_deoptimize = kBreaksPerTest;
}
break_point_hit_count = 0;
max_break_point_hit_count = kBreaksPerTest;
terminate_after_max_break_point_hit = true;
EmbeddedVector<char, 1024> buffer;
OS::SNPrintF(buffer,
"function f() {%s%s%s}",
loop_head, loop_bodies[i], loop_tail);
// Function with infinite loop.
CompileRun(buffer.start());
// Set the debug break to enter the debugger as soon as possible.
v8::Debug::DebugBreak();
// Call function with infinite loop.
CompileRun("f();");
CHECK_EQ(kBreaksPerTest, break_point_hit_count);
CHECK(!v8::V8::IsExecutionTerminating());
}
}
}
TEST(DebugBreakLoop) {
v8::HandleScope scope;
DebugLocalContext env;
// Register a debug event listener which sets the break flag and counts.
v8::Debug::SetDebugEventListener(DebugEventBreakMax);
// Create a function for getting the frame count when hitting the break.
frame_count = CompileFunction(&env, frame_count_source, "frame_count");
CompileRun("var a = 1;");
CompileRun("function g() { }");
CompileRun("function h() { }");
const char* loop_bodies[] = {
"",
"g()",
"if (a == 0) { g() }",
"if (a == 1) { g() }",
"if (a == 0) { g() } else { h() }",
"if (a == 0) { continue }",
"if (a == 1) { continue }",
"switch (a) { case 1: g(); }",
"switch (a) { case 1: continue; }",
"switch (a) { case 1: g(); break; default: h() }",
"switch (a) { case 1: continue; break; default: h() }",
NULL
};
TestDebugBreakInLoop("while (true) {", loop_bodies, "}");
TestDebugBreakInLoop("while (a == 1) {", loop_bodies, "}");
TestDebugBreakInLoop("do {", loop_bodies, "} while (true)");
TestDebugBreakInLoop("do {", loop_bodies, "} while (a == 1)");
TestDebugBreakInLoop("for (;;) {", loop_bodies, "}");
TestDebugBreakInLoop("for (;a == 1;) {", loop_bodies, "}");
// Get rid of the debug event listener.
v8::Debug::SetDebugEventListener(NULL);
CheckDebuggerUnloaded();
}
#endif // ENABLE_DEBUGGER_SUPPORT
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