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v8/test/cctest/compiler/test-run-bytecode-graph-builder.cc
Ross McIlroy fdfb8c9efb [TurboFan] Add support for generic lowering of StringConcat bytecode. 
Adds support for lowering of ToPrimitiveToString and StringConcat bytecodes
to the corresponding builtins. As part of this, moves the interpreter
implementation of these operations into the appropriate builtin generators
and add builtin support for them.

Also adds TailCallRuntimeN operator to code-assembler which enables tail calling
a runtime function when the arguments have already been pushed onto the stack.

BUG=v8:6243

Change-Id: Id5c851bc42e4ff490d9a23a8990ae331c7eac73e
Reviewed-on: https://chromium-review.googlesource.com/515362
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45756}
2017-06-07 11:46:55 +00:00

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// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <utility>
#include "src/compilation-info.h"
#include "src/compiler/pipeline.h"
#include "src/debug/debug-interface.h"
#include "src/execution.h"
#include "src/handles.h"
#include "src/interpreter/bytecode-array-builder.h"
#include "src/interpreter/interpreter.h"
#include "src/objects-inl.h"
#include "src/parsing/parse-info.h"
#include "test/cctest/cctest.h"
namespace v8 {
namespace internal {
namespace compiler {
#define SHARD_TEST_BY_2(x) \
TEST(x##_0) { Test##x(0); } \
TEST(x##_1) { Test##x(1); }
#define SHARD_TEST_BY_4(x) \
TEST(x##_0) { Test##x(0); } \
TEST(x##_1) { Test##x(1); } \
TEST(x##_2) { Test##x(2); } \
TEST(x##_3) { Test##x(3); }
static const char kFunctionName[] = "f";
static const Token::Value kCompareOperators[] = {
Token::Value::EQ, Token::Value::NE, Token::Value::EQ_STRICT,
Token::Value::NE_STRICT, Token::Value::LT, Token::Value::LTE,
Token::Value::GT, Token::Value::GTE};
static const int SMI_MAX = (1 << 30) - 1;
static const int SMI_MIN = -(1 << 30);
static MaybeHandle<Object> CallFunction(Isolate* isolate,
Handle<JSFunction> function) {
return Execution::Call(isolate, function,
isolate->factory()->undefined_value(), 0, nullptr);
}
template <class... A>
static MaybeHandle<Object> CallFunction(Isolate* isolate,
Handle<JSFunction> function,
A... args) {
Handle<Object> argv[] = {args...};
return Execution::Call(isolate, function,
isolate->factory()->undefined_value(), sizeof...(args),
argv);
}
template <class... A>
class BytecodeGraphCallable {
public:
BytecodeGraphCallable(Isolate* isolate, Handle<JSFunction> function)
: isolate_(isolate), function_(function) {}
virtual ~BytecodeGraphCallable() {}
MaybeHandle<Object> operator()(A... args) {
return CallFunction(isolate_, function_, args...);
}
private:
Isolate* isolate_;
Handle<JSFunction> function_;
};
class BytecodeGraphTester {
public:
BytecodeGraphTester(Isolate* isolate, const char* script,
const char* filter = kFunctionName)
: isolate_(isolate), script_(script) {
i::FLAG_ignition = true;
i::FLAG_always_opt = false;
i::FLAG_allow_natives_syntax = true;
i::FLAG_loop_assignment_analysis = false;
}
virtual ~BytecodeGraphTester() {}
template <class... A>
BytecodeGraphCallable<A...> GetCallable(
const char* functionName = kFunctionName) {
return BytecodeGraphCallable<A...>(isolate_, GetFunction(functionName));
}
Local<Message> CheckThrowsReturnMessage() {
TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate_));
auto callable = GetCallable<>();
MaybeHandle<Object> no_result = callable();
CHECK(isolate_->has_pending_exception());
CHECK(try_catch.HasCaught());
CHECK(no_result.is_null());
isolate_->OptionalRescheduleException(true);
CHECK(!try_catch.Message().IsEmpty());
return try_catch.Message();
}
static Handle<Object> NewObject(const char* script) {
return v8::Utils::OpenHandle(*CompileRun(script));
}
private:
Isolate* isolate_;
const char* script_;
Handle<JSFunction> GetFunction(const char* functionName) {
CompileRun(script_);
Local<Function> api_function = Local<Function>::Cast(
CcTest::global()
->Get(CcTest::isolate()->GetCurrentContext(), v8_str(functionName))
.ToLocalChecked());
Handle<JSFunction> function =
Handle<JSFunction>::cast(v8::Utils::OpenHandle(*api_function));
CHECK(function->shared()->HasBytecodeArray());
// TODO(mstarzinger): We should be able to prime CompilationInfo without
// having to instantiate a ParseInfo first. Fix this!
ParseInfo parse_info(handle(function->shared()));
CompilationInfo compilation_info(parse_info.zone(), &parse_info,
function->GetIsolate(), function);
compilation_info.SetOptimizing();
compilation_info.MarkAsDeoptimizationEnabled();
compilation_info.MarkAsOptimizeFromBytecode();
Handle<Code> code = Pipeline::GenerateCodeForTesting(&compilation_info);
function->ReplaceCode(*code);
return function;
}
DISALLOW_COPY_AND_ASSIGN(BytecodeGraphTester);
};
#define SPACE()
#define REPEAT_2(SEP, ...) __VA_ARGS__ SEP() __VA_ARGS__
#define REPEAT_4(SEP, ...) \
REPEAT_2(SEP, __VA_ARGS__) SEP() REPEAT_2(SEP, __VA_ARGS__)
#define REPEAT_8(SEP, ...) \
REPEAT_4(SEP, __VA_ARGS__) SEP() REPEAT_4(SEP, __VA_ARGS__)
#define REPEAT_16(SEP, ...) \
REPEAT_8(SEP, __VA_ARGS__) SEP() REPEAT_8(SEP, __VA_ARGS__)
#define REPEAT_32(SEP, ...) \
REPEAT_16(SEP, __VA_ARGS__) SEP() REPEAT_16(SEP, __VA_ARGS__)
#define REPEAT_64(SEP, ...) \
REPEAT_32(SEP, __VA_ARGS__) SEP() REPEAT_32(SEP, __VA_ARGS__)
#define REPEAT_128(SEP, ...) \
REPEAT_64(SEP, __VA_ARGS__) SEP() REPEAT_64(SEP, __VA_ARGS__)
#define REPEAT_256(SEP, ...) \
REPEAT_128(SEP, __VA_ARGS__) SEP() REPEAT_128(SEP, __VA_ARGS__)
#define REPEAT_127(SEP, ...) \
REPEAT_64(SEP, __VA_ARGS__) \
SEP() \
REPEAT_32(SEP, __VA_ARGS__) \
SEP() \
REPEAT_16(SEP, __VA_ARGS__) \
SEP() \
REPEAT_8(SEP, __VA_ARGS__) \
SEP() \
REPEAT_4(SEP, __VA_ARGS__) SEP() REPEAT_2(SEP, __VA_ARGS__) SEP() __VA_ARGS__
template <int N, typename T = Handle<Object>>
struct ExpectedSnippet {
const char* code_snippet;
T return_value_and_parameters[N + 1];
inline T return_value() const { return return_value_and_parameters[0]; }
inline T parameter(int i) const {
CHECK_GE(i, 0);
CHECK_LT(i, N);
return return_value_and_parameters[1 + i];
}
};
TEST(BytecodeGraphBuilderReturnStatements) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"return;", {factory->undefined_value()}},
{"return null;", {factory->null_value()}},
{"return true;", {factory->true_value()}},
{"return false;", {factory->false_value()}},
{"return 0;", {factory->NewNumberFromInt(0)}},
{"return +1;", {factory->NewNumberFromInt(1)}},
{"return -1;", {factory->NewNumberFromInt(-1)}},
{"return +127;", {factory->NewNumberFromInt(127)}},
{"return -128;", {factory->NewNumberFromInt(-128)}},
{"return 0.001;", {factory->NewNumber(0.001)}},
{"return 3.7e-60;", {factory->NewNumber(3.7e-60)}},
{"return -3.7e60;", {factory->NewNumber(-3.7e60)}},
{"return '';", {factory->NewStringFromStaticChars("")}},
{"return 'catfood';", {factory->NewStringFromStaticChars("catfood")}},
{"return NaN;", {factory->nan_value()}}};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderPrimitiveExpressions) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"return 1 + 1;", {factory->NewNumberFromInt(2)}},
{"return 20 - 30;", {factory->NewNumberFromInt(-10)}},
{"return 4 * 100;", {factory->NewNumberFromInt(400)}},
{"return 100 / 5;", {factory->NewNumberFromInt(20)}},
{"return 25 % 7;", {factory->NewNumberFromInt(4)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderTwoParameterTests) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<2> snippets[] = {
// Integers
{"return p1 + p2;",
{factory->NewNumberFromInt(-70), factory->NewNumberFromInt(3),
factory->NewNumberFromInt(-73)}},
{"return p1 + p2 + 3;",
{factory->NewNumberFromInt(1139044), factory->NewNumberFromInt(300),
factory->NewNumberFromInt(1138741)}},
{"return p1 - p2;",
{factory->NewNumberFromInt(1100), factory->NewNumberFromInt(1000),
factory->NewNumberFromInt(-100)}},
{"return p1 * p2;",
{factory->NewNumberFromInt(-100000), factory->NewNumberFromInt(1000),
factory->NewNumberFromInt(-100)}},
{"return p1 / p2;",
{factory->NewNumberFromInt(-10), factory->NewNumberFromInt(1000),
factory->NewNumberFromInt(-100)}},
{"return p1 % p2;",
{factory->NewNumberFromInt(5), factory->NewNumberFromInt(373),
factory->NewNumberFromInt(16)}},
// Doubles
{"return p1 + p2;",
{factory->NewHeapNumber(9.999), factory->NewHeapNumber(3.333),
factory->NewHeapNumber(6.666)}},
{"return p1 - p2;",
{factory->NewHeapNumber(-3.333), factory->NewHeapNumber(3.333),
factory->NewHeapNumber(6.666)}},
{"return p1 * p2;",
{factory->NewHeapNumber(3.333 * 6.666), factory->NewHeapNumber(3.333),
factory->NewHeapNumber(6.666)}},
{"return p1 / p2;",
{factory->NewHeapNumber(2.25), factory->NewHeapNumber(9),
factory->NewHeapNumber(4)}},
// Strings
{"return p1 + p2;",
{factory->NewStringFromStaticChars("abcdef"),
factory->NewStringFromStaticChars("abc"),
factory->NewStringFromStaticChars("def")}}};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1, p2) { %s }\n%s(0, 0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>, Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0), snippets[i].parameter(1))
.ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
class OneByteResource : public v8::String::ExternalOneByteStringResource {
public:
OneByteResource(const char* data, size_t length)
: data_(data), length_(length) {}
~OneByteResource() { i::DeleteArray(data_); }
virtual const char* data() const { return data_; }
virtual size_t length() const { return length_; }
private:
const char* data_;
size_t length_;
};
TEST(BytecodeGraphBuilderStringConcat) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
v8::Isolate* ext_isolate = reinterpret_cast<v8::Isolate*>(isolate);
Factory* factory = isolate->factory();
uc16 array1[] = {2001, 2002, 2003};
Vector<const uc16> two_byte_str_1(array1);
uc16 array2[] = {1001, 1002, 1003, 1004, 1005, 1006};
Vector<const uc16> two_byte_str_2(array2);
uc16 array3[] = {1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009};
Vector<const uc16> two_byte_str_3(array3);
OneByteResource* external_resource =
new OneByteResource(StrDup("external"), 8);
v8::Local<v8::String> ext_string_local =
v8::String::NewExternalOneByte(ext_isolate, external_resource)
.ToLocalChecked();
Handle<String> external_string = v8::Utils::OpenHandle(*ext_string_local);
Handle<String> thin_string =
factory->NewStringFromAsciiChecked("thin_string");
factory->InternalizeString(thin_string);
DCHECK_IMPLIES(FLAG_thin_strings, thin_string->IsThinString());
Handle<String> sliced_string =
factory->NewStringFromAsciiChecked("string that is going to be sliced");
sliced_string = factory->NewProperSubString(sliced_string, 2, 27);
DCHECK_IMPLIES(FLAG_string_slices, sliced_string->IsSlicedString());
Handle<String> inputs[] = {
factory->NewStringFromAsciiChecked(""),
factory->NewStringFromAsciiChecked("a"),
factory->NewStringFromAsciiChecked("abc"),
factory->NewStringFromAsciiChecked("underconsmin"),
factory->NewStringFromAsciiChecked("long string over cons min length"),
factory->NewStringFromTwoByte(two_byte_str_1).ToHandleChecked(),
factory->NewStringFromTwoByte(two_byte_str_2).ToHandleChecked(),
factory->NewStringFromTwoByte(two_byte_str_3).ToHandleChecked(),
factory
->NewConsString(factory->NewStringFromAsciiChecked("foo"),
factory->NewStringFromAsciiChecked("bar"))
.ToHandleChecked(),
factory
->NewConsString(factory->empty_string(),
factory->NewStringFromAsciiChecked("bar"))
.ToHandleChecked(),
factory
->NewConsString(factory->NewStringFromAsciiChecked("foo"),
factory->empty_string())
.ToHandleChecked(),
external_string,
thin_string,
sliced_string,
};
for (size_t i = 0; i < arraysize(inputs); i++) {
for (size_t j = 0; j < arraysize(inputs); j++) {
ScopedVector<char> script(1024);
SNPrintF(script,
"function %s(p1, p2) { return 'abc' + p1 + p2; }\n;"
"%s('a', 'b');",
kFunctionName, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>, Handle<Object>>();
Handle<Object> return_value =
callable(inputs[i], inputs[j]).ToHandleChecked();
Handle<String> expected =
factory
->NewConsString(
factory
->NewConsString(factory->NewStringFromAsciiChecked("abc"),
inputs[i])
.ToHandleChecked(),
inputs[j])
.ToHandleChecked();
CHECK(return_value->SameValue(*expected));
}
}
}
TEST(BytecodeGraphBuilderNamedLoad) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return p1.val;",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"return p1[\"name\"];",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({name : 'abc'})")}},
{"'use strict'; return p1.val;",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10 })")}},
{"'use strict'; return p1[\"val\"];",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10, name : 'abc'})")}},
{"var b;\n" REPEAT_127(SPACE, " b = p1.name; ") " return p1.name;\n",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({name : 'abc'})")}},
{"'use strict'; var b;\n"
REPEAT_127(SPACE, " b = p1.name; ")
"return p1.name;\n",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({ name : 'abc'})")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1) { %s };\n%s(0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderKeyedLoad) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<2> snippets[] = {
{"return p1[p2];",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10})"),
factory->NewStringFromStaticChars("val")}},
{"return p1[100];",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(0)}},
{"var b = 100; return p1[b];",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(0)}},
{"'use strict'; return p1[p2];",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10 })"),
factory->NewStringFromStaticChars("val")}},
{"'use strict'; return p1[100];",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({100 : 10})"),
factory->NewNumberFromInt(0)}},
{"'use strict'; var b = p2; return p1[b];",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(100)}},
{"var b;\n" REPEAT_127(SPACE, " b = p1[p2]; ") " return p1[p2];\n",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(100)}},
{"'use strict'; var b;\n" REPEAT_127(SPACE,
" b = p1[p2]; ") "return p1[p2];\n",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({ 100 : 'abc'})"),
factory->NewNumberFromInt(100)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1, p2) { %s };\n%s(0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>, Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0), snippets[i].parameter(1))
.ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
void TestBytecodeGraphBuilderNamedStore(size_t shard) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return p1.val = 20;",
{factory->NewNumberFromInt(20),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"p1.type = 'int'; return p1.type;",
{factory->NewStringFromStaticChars("int"),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"p1.name = 'def'; return p1[\"name\"];",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({name : 'abc'})")}},
{"'use strict'; p1.val = 20; return p1.val;",
{factory->NewNumberFromInt(20),
BytecodeGraphTester::NewObject("({val : 10 })")}},
{"'use strict'; return p1.type = 'int';",
{factory->NewStringFromStaticChars("int"),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"'use strict'; p1.val = 20; return p1[\"val\"];",
{factory->NewNumberFromInt(20),
BytecodeGraphTester::NewObject("({val : 10, name : 'abc'})")}},
{"var b = 'abc';\n" REPEAT_127(
SPACE, " p1.name = b; ") " p1.name = 'def'; return p1.name;\n",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({name : 'abc'})")}},
{"'use strict'; var b = 'def';\n" REPEAT_127(
SPACE, " p1.name = 'abc'; ") "p1.name = b; return p1.name;\n",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({ name : 'abc'})")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
if ((i % 2) != shard) continue;
ScopedVector<char> script(3072);
SNPrintF(script, "function %s(p1) { %s };\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
SHARD_TEST_BY_2(BytecodeGraphBuilderNamedStore)
void TestBytecodeGraphBuilderKeyedStore(size_t shard) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<2> snippets[] = {
{"p1[p2] = 20; return p1[p2];",
{factory->NewNumberFromInt(20),
BytecodeGraphTester::NewObject("({val : 10})"),
factory->NewStringFromStaticChars("val")}},
{"return p1[100] = 'def';",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(0)}},
{"var b = 100; p1[b] = 'def'; return p1[b];",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(0)}},
{"'use strict'; p1[p2] = 20; return p1[p2];",
{factory->NewNumberFromInt(20),
BytecodeGraphTester::NewObject("({val : 10 })"),
factory->NewStringFromStaticChars("val")}},
{"'use strict'; return p1[100] = 20;",
{factory->NewNumberFromInt(20),
BytecodeGraphTester::NewObject("({100 : 10})"),
factory->NewNumberFromInt(0)}},
{"'use strict'; var b = p2; p1[b] = 'def'; return p1[b];",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(100)}},
{"var b;\n" REPEAT_127(
SPACE, " b = p1[p2]; ") " p1[p2] = 'def'; return p1[p2];\n",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({100 : 'abc'})"),
factory->NewNumberFromInt(100)}},
{"'use strict'; var b;\n" REPEAT_127(
SPACE, " b = p1[p2]; ") " p1[p2] = 'def'; return p1[p2];\n",
{factory->NewStringFromStaticChars("def"),
BytecodeGraphTester::NewObject("({ 100 : 'abc'})"),
factory->NewNumberFromInt(100)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
if ((i % 2) != shard) continue;
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1, p2) { %s };\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
SHARD_TEST_BY_2(BytecodeGraphBuilderKeyedStore)
TEST(BytecodeGraphBuilderPropertyCall) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return p1.func();",
{factory->NewNumberFromInt(25),
BytecodeGraphTester::NewObject("({func() { return 25; }})")}},
{"return p1.func('abc');",
{factory->NewStringFromStaticChars("abc"),
BytecodeGraphTester::NewObject("({func(a) { return a; }})")}},
{"return p1.func(1, 2, 3, 4, 5, 6, 7, 8);",
{factory->NewNumberFromInt(36),
BytecodeGraphTester::NewObject(
"({func(a, b, c, d, e, f, g, h) {\n"
" return a + b + c + d + e + f + g + h;}})")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1) { %s };\n%s({func() {}});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCallNew) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"function counter() { this.count = 20; }\n"
"function f() {\n"
" var c = new counter();\n"
" return c.count;\n"
"}; f()",
{factory->NewNumberFromInt(20)}},
{"function counter(arg0) { this.count = 17; this.x = arg0; }\n"
"function f() {\n"
" var c = new counter(6);\n"
" return c.count + c.x;\n"
"}; f()",
{factory->NewNumberFromInt(23)}},
{"function counter(arg0, arg1) {\n"
" this.count = 17; this.x = arg0; this.y = arg1;\n"
"}\n"
"function f() {\n"
" var c = new counter(3, 5);\n"
" return c.count + c.x + c.y;\n"
"}; f()",
{factory->NewNumberFromInt(25)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
BytecodeGraphTester tester(isolate, snippets[i].code_snippet);
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCreateClosure) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"function f() {\n"
" function counter() { this.count = 20; }\n"
" var c = new counter();\n"
" return c.count;\n"
"}; f()",
{factory->NewNumberFromInt(20)}},
{"function f() {\n"
" function counter(arg0) { this.count = 17; this.x = arg0; }\n"
" var c = new counter(6);\n"
" return c.count + c.x;\n"
"}; f()",
{factory->NewNumberFromInt(23)}},
{"function f() {\n"
" function counter(arg0, arg1) {\n"
" this.count = 17; this.x = arg0; this.y = arg1;\n"
" }\n"
" var c = new counter(3, 5);\n"
" return c.count + c.x + c.y;\n"
"}; f()",
{factory->NewNumberFromInt(25)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
BytecodeGraphTester tester(isolate, snippets[i].code_snippet);
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCallRuntime) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"function f(arg0) { return %MaxSmi(); }\nf()",
{factory->NewNumberFromInt(Smi::kMaxValue), factory->undefined_value()}},
{"function f(arg0) { return %IsArray(arg0) }\nf(undefined)",
{factory->true_value(), BytecodeGraphTester::NewObject("[1, 2, 3]")}},
{"function f(arg0) { return %Add(arg0, 2) }\nf(1)",
{factory->NewNumberFromInt(5), factory->NewNumberFromInt(3)}},
{"function f(arg0) { return %spread_arguments(arg0).length }\nf([])",
{factory->NewNumberFromInt(3),
BytecodeGraphTester::NewObject("[1, 2, 3]")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
BytecodeGraphTester tester(isolate, snippets[i].code_snippet);
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderInvokeIntrinsic) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"function f(arg0) { return %_IsJSReceiver(arg0); }\nf()",
{factory->false_value(), factory->NewNumberFromInt(1)}},
{"function f(arg0) { return %_IsArray(arg0) }\nf(undefined)",
{factory->true_value(), BytecodeGraphTester::NewObject("[1, 2, 3]")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
BytecodeGraphTester tester(isolate, snippets[i].code_snippet);
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
void TestBytecodeGraphBuilderGlobals(size_t shard) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var global = 321;\n function f() { return global; };\n f();",
{factory->NewNumberFromInt(321)}},
{"var global = 321;\n"
"function f() { global = 123; return global };\n f();",
{factory->NewNumberFromInt(123)}},
{"var global = function() { return 'abc'};\n"
"function f() { return global(); };\n f();",
{factory->NewStringFromStaticChars("abc")}},
{"var global = 456;\n"
"function f() { 'use strict'; return global; };\n f();",
{factory->NewNumberFromInt(456)}},
{"var global = 987;\n"
"function f() { 'use strict'; global = 789; return global };\n f();",
{factory->NewNumberFromInt(789)}},
{"var global = function() { return 'xyz'};\n"
"function f() { 'use strict'; return global(); };\n f();",
{factory->NewStringFromStaticChars("xyz")}},
{"var global = 'abc'; var global_obj = {val:123};\n"
"function f() {\n" REPEAT_127(
SPACE, " var b = global_obj.name;\n") "return global; };\n f();\n",
{factory->NewStringFromStaticChars("abc")}},
{"var global = 'abc'; var global_obj = {val:123};\n"
"function f() { 'use strict';\n" REPEAT_127(
SPACE, " var b = global_obj.name;\n") "global = 'xyz'; return "
"global };\n f();\n",
{factory->NewStringFromStaticChars("xyz")}},
{"function f() { return typeof(undeclared_var); }\n; f();\n",
{factory->NewStringFromStaticChars("undefined")}},
{"var defined_var = 10; function f() { return typeof(defined_var); }\n; "
"f();\n",
{factory->NewStringFromStaticChars("number")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
if ((i % 2) != shard) continue;
BytecodeGraphTester tester(isolate, snippets[i].code_snippet);
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
SHARD_TEST_BY_2(BytecodeGraphBuilderGlobals)
TEST(BytecodeGraphBuilderToObject) {
// TODO(mythria): tests for ToObject. Needs ForIn.
}
TEST(BytecodeGraphBuilderToName) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var a = 'val'; var obj = {[a] : 10}; return obj.val;",
{factory->NewNumberFromInt(10)}},
{"var a = 20; var obj = {[a] : 10}; return obj['20'];",
{factory->NewNumberFromInt(10)}},
{"var a = 20; var obj = {[a] : 10}; return obj[20];",
{factory->NewNumberFromInt(10)}},
{"var a = {val:23}; var obj = {[a] : 10}; return obj[a];",
{factory->NewNumberFromInt(10)}},
{"var a = {val:23}; var obj = {[a] : 10}; return obj['[object Object]'];",
{factory->NewNumberFromInt(10)}},
{"var a = {toString : function() { return 'x'}};\n"
"var obj = {[a] : 10};\n"
"return obj.x;",
{factory->NewNumberFromInt(10)}},
{"var a = {valueOf : function() { return 'x'}};\n"
"var obj = {[a] : 10};\n"
"return obj.x;",
{factory->undefined_value()}},
{"var a = {[Symbol.toPrimitive] : function() { return 'x'}};\n"
"var obj = {[a] : 10};\n"
"return obj.x;",
{factory->NewNumberFromInt(10)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderLogicalNot) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return !p1;",
{factory->false_value(),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"return !p1;", {factory->true_value(), factory->NewNumberFromInt(0)}},
{"return !p1;", {factory->true_value(), factory->undefined_value()}},
{"return !p1;", {factory->false_value(), factory->NewNumberFromInt(10)}},
{"return !p1;", {factory->false_value(), factory->true_value()}},
{"return !p1;",
{factory->false_value(), factory->NewStringFromStaticChars("abc")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1) { %s }\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderTypeOf) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return typeof p1;",
{factory->NewStringFromStaticChars("object"),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"return typeof p1;",
{factory->NewStringFromStaticChars("undefined"),
factory->undefined_value()}},
{"return typeof p1;",
{factory->NewStringFromStaticChars("number"),
factory->NewNumberFromInt(10)}},
{"return typeof p1;",
{factory->NewStringFromStaticChars("boolean"), factory->true_value()}},
{"return typeof p1;",
{factory->NewStringFromStaticChars("string"),
factory->NewStringFromStaticChars("abc")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1) { %s }\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCompareTypeOf) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return typeof p1 === 'number';",
{factory->true_value(), factory->NewNumber(1.1)}},
{"return typeof p1 === 'string';",
{factory->false_value(), factory->NewNumber(1.1)}},
{"return typeof p1 === 'string';",
{factory->true_value(), factory->NewStringFromStaticChars("string")}},
{"return typeof p1 === 'string';",
{factory->false_value(), factory->undefined_value()}},
{"return typeof p1 === 'undefined';",
{factory->true_value(), factory->undefined_value()}},
{"return typeof p1 === 'object';",
{factory->true_value(), factory->null_value()}},
{"return typeof p1 === 'object';",
{factory->true_value(), BytecodeGraphTester::NewObject("({val : 10})")}},
{"return typeof p1 === 'function';",
{factory->false_value(),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"return typeof p1 === 'symbol';",
{factory->true_value(), factory->NewSymbol()}},
{"return typeof p1 === 'symbol';",
{factory->false_value(), factory->NewStringFromStaticChars("string")}},
{"return typeof p1 === 'other';",
{factory->false_value(), factory->NewNumber(1.1)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1) { %s }\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCountOperation) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return ++p1;",
{factory->NewNumberFromInt(11), factory->NewNumberFromInt(10)}},
{"return p1++;",
{factory->NewNumberFromInt(10), factory->NewNumberFromInt(10)}},
{"return p1++ + 10;",
{factory->NewHeapNumber(15.23), factory->NewHeapNumber(5.23)}},
{"return 20 + ++p1;",
{factory->NewHeapNumber(27.23), factory->NewHeapNumber(6.23)}},
{"return --p1;",
{factory->NewHeapNumber(9.8), factory->NewHeapNumber(10.8)}},
{"return p1--;",
{factory->NewHeapNumber(10.8), factory->NewHeapNumber(10.8)}},
{"return p1-- + 10;",
{factory->NewNumberFromInt(20), factory->NewNumberFromInt(10)}},
{"return 20 + --p1;",
{factory->NewNumberFromInt(29), factory->NewNumberFromInt(10)}},
{"return p1.val--;",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"return ++p1['val'];",
{factory->NewNumberFromInt(11),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"return ++p1[1];",
{factory->NewNumberFromInt(11),
BytecodeGraphTester::NewObject("({1 : 10})")}},
{" function inner() { return p1 } return --p1;",
{factory->NewNumberFromInt(9), factory->NewNumberFromInt(10)}},
{" function inner() { return p1 } return p1--;",
{factory->NewNumberFromInt(10), factory->NewNumberFromInt(10)}},
{"return ++p1;",
{factory->nan_value(), factory->NewStringFromStaticChars("String")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1) { %s }\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderDelete) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return delete p1.val;",
{factory->true_value(), BytecodeGraphTester::NewObject("({val : 10})")}},
{"delete p1.val; return p1.val;",
{factory->undefined_value(),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"delete p1.name; return p1.val;",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10, name:'abc'})")}},
{"'use strict'; return delete p1.val;",
{factory->true_value(), BytecodeGraphTester::NewObject("({val : 10})")}},
{"'use strict'; delete p1.val; return p1.val;",
{factory->undefined_value(),
BytecodeGraphTester::NewObject("({val : 10})")}},
{"'use strict'; delete p1.name; return p1.val;",
{factory->NewNumberFromInt(10),
BytecodeGraphTester::NewObject("({val : 10, name:'abc'})")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1) { %s }\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderDeleteGlobal) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var obj = {val : 10, type : 'int'};"
"function f() {return delete obj;};",
{factory->false_value()}},
{"function f() {return delete this;};", {factory->true_value()}},
{"var obj = {val : 10, type : 'int'};"
"function f() {return delete obj.val;};",
{factory->true_value()}},
{"var obj = {val : 10, type : 'int'};"
"function f() {'use strict'; return delete obj.val;};",
{factory->true_value()}},
{"var obj = {val : 10, type : 'int'};"
"function f() {delete obj.val; return obj.val;};",
{factory->undefined_value()}},
{"var obj = {val : 10, type : 'int'};"
"function f() {'use strict'; delete obj.val; return obj.val;};",
{factory->undefined_value()}},
{"var obj = {1 : 10, 2 : 20};"
"function f() { return delete obj[1]; };",
{factory->true_value()}},
{"var obj = {1 : 10, 2 : 20};"
"function f() { 'use strict'; return delete obj[1];};",
{factory->true_value()}},
{"obj = {1 : 10, 2 : 20};"
"function f() { delete obj[1]; return obj[2];};",
{factory->NewNumberFromInt(20)}},
{"function f() {"
" var obj = {1 : 10, 2 : 20};"
" function inner() { return obj[1]; };"
" return delete obj[1];"
"}",
{factory->true_value()}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s %s({});", snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderDeleteLookupSlot) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
// TODO(mythria): Add more tests when we have support for LdaLookupSlot.
const char* function_prologue = "var f;"
"var x = 1;"
"y = 10;"
"var obj = {val:10};"
"var z = 30;"
"function f1() {"
" var z = 20;"
" eval(\"function t() {";
const char* function_epilogue = " }; f = t; t();\");"
"}"
"f1();";
ExpectedSnippet<0> snippets[] = {
{"return delete y;", {factory->true_value()}},
{"return delete z;", {factory->false_value()}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s %s %s", function_prologue, snippets[i].code_snippet,
function_epilogue);
BytecodeGraphTester tester(isolate, script.start(), "t");
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderLookupSlot) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
const char* function_prologue = "var f;"
"var x = 12;"
"y = 10;"
"var obj = {val:3.1414};"
"var z = 30;"
"function f1() {"
" var z = 20;"
" eval(\"function t() {";
const char* function_epilogue = " }; f = t; t();\");"
"}"
"f1();";
ExpectedSnippet<0> snippets[] = {
{"return x;", {factory->NewNumber(12)}},
{"return obj.val;", {factory->NewNumber(3.1414)}},
{"return typeof x;", {factory->NewStringFromStaticChars("number")}},
{"return typeof dummy;",
{factory->NewStringFromStaticChars("undefined")}},
{"x = 23; return x;", {factory->NewNumber(23)}},
{"'use strict'; obj.val = 23.456; return obj.val;",
{factory->NewNumber(23.456)}}};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s %s %s", function_prologue, snippets[i].code_snippet,
function_epilogue);
BytecodeGraphTester tester(isolate, script.start(), "t");
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderLookupContextSlot) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
// Testing with eval called in the current context.
const char* inner_eval_prologue = "var x = 0; function inner() {";
const char* inner_eval_epilogue = "}; return inner();";
ExpectedSnippet<0> inner_eval_snippets[] = {
{"eval(''); return x;", {factory->NewNumber(0)}},
{"eval('var x = 1'); return x;", {factory->NewNumber(1)}},
{"'use strict'; eval('var x = 1'); return x;", {factory->NewNumber(0)}}};
for (size_t i = 0; i < arraysize(inner_eval_snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1) { %s %s %s } ; %s() ;", kFunctionName,
inner_eval_prologue, inner_eval_snippets[i].code_snippet,
inner_eval_epilogue, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*inner_eval_snippets[i].return_value()));
}
// Testing with eval called in a parent context.
const char* outer_eval_prologue = "";
const char* outer_eval_epilogue =
"function inner() { return x; }; return inner();";
ExpectedSnippet<0> outer_eval_snippets[] = {
{"var x = 0; eval('');", {factory->NewNumber(0)}},
{"var x = 0; eval('var x = 1');", {factory->NewNumber(1)}},
{"'use strict'; var x = 0; eval('var x = 1');", {factory->NewNumber(0)}}};
for (size_t i = 0; i < arraysize(outer_eval_snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s %s %s } ; %s() ;", kFunctionName,
outer_eval_prologue, outer_eval_snippets[i].code_snippet,
outer_eval_epilogue, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*outer_eval_snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderLookupGlobalSlot) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
// Testing with eval called in the current context.
const char* inner_eval_prologue = "x = 0; function inner() {";
const char* inner_eval_epilogue = "}; return inner();";
ExpectedSnippet<0> inner_eval_snippets[] = {
{"eval(''); return x;", {factory->NewNumber(0)}},
{"eval('var x = 1'); return x;", {factory->NewNumber(1)}},
{"'use strict'; eval('var x = 1'); return x;", {factory->NewNumber(0)}}};
for (size_t i = 0; i < arraysize(inner_eval_snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1) { %s %s %s } ; %s() ;", kFunctionName,
inner_eval_prologue, inner_eval_snippets[i].code_snippet,
inner_eval_epilogue, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*inner_eval_snippets[i].return_value()));
}
// Testing with eval called in a parent context.
const char* outer_eval_prologue = "";
const char* outer_eval_epilogue =
"function inner() { return x; }; return inner();";
ExpectedSnippet<0> outer_eval_snippets[] = {
{"x = 0; eval('');", {factory->NewNumber(0)}},
{"x = 0; eval('var x = 1');", {factory->NewNumber(1)}},
{"'use strict'; x = 0; eval('var x = 1');", {factory->NewNumber(0)}}};
for (size_t i = 0; i < arraysize(outer_eval_snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s %s %s } ; %s() ;", kFunctionName,
outer_eval_prologue, outer_eval_snippets[i].code_snippet,
outer_eval_epilogue, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*outer_eval_snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderLookupSlotWide) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
const char* function_prologue =
"var f;"
"var x = 12;"
"y = 10;"
"var obj = {val:3.1414};"
"var z = 30;"
"function f1() {"
" var z = 20;"
" eval(\"function t() {";
const char* function_epilogue =
" }; f = t; t();\");"
"}"
"f1();";
ExpectedSnippet<0> snippets[] = {
{"var y = 2.3;" REPEAT_256(SPACE, "y = 2.3;") "return x;",
{factory->NewNumber(12)}},
{"var y = 2.3;" REPEAT_256(SPACE, "y = 2.3;") "return typeof x;",
{factory->NewStringFromStaticChars("number")}},
{"var y = 2.3;" REPEAT_256(SPACE, "y = 2.3;") "return x = 23;",
{factory->NewNumber(23)}},
{"'use strict';" REPEAT_256(SPACE, "y = 2.3;") "return obj.val = 23.456;",
{factory->NewNumber(23.456)}}};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(3072);
SNPrintF(script, "%s %s %s", function_prologue, snippets[i].code_snippet,
function_epilogue);
BytecodeGraphTester tester(isolate, script.start(), "t");
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCallLookupSlot) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
ExpectedSnippet<0> snippets[] = {
{"g = function(){ return 2 }; eval(''); return g();",
{handle(Smi::FromInt(2), isolate)}},
{"g = function(){ return 2 }; eval('g = function() {return 3}');\n"
"return g();",
{handle(Smi::FromInt(3), isolate)}},
{"g = { x: function(){ return this.y }, y: 20 };\n"
"eval('g = { x: g.x, y: 30 }');\n"
"return g.x();",
{handle(Smi::FromInt(30), isolate)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderEval) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"return eval('1;');", {handle(Smi::FromInt(1), isolate)}},
{"return eval('100 * 20;');", {handle(Smi::FromInt(2000), isolate)}},
{"var x = 10; return eval('x + 20;');",
{handle(Smi::FromInt(30), isolate)}},
{"var x = 10; eval('x = 33;'); return x;",
{handle(Smi::FromInt(33), isolate)}},
{"'use strict'; var x = 20; var z = 0;\n"
"eval('var x = 33; z = x;'); return x + z;",
{handle(Smi::FromInt(53), isolate)}},
{"eval('var x = 33;'); eval('var y = x + 20'); return x + y;",
{handle(Smi::FromInt(86), isolate)}},
{"var x = 1; eval('for(i = 0; i < 10; i++) x = x + 1;'); return x",
{handle(Smi::FromInt(11), isolate)}},
{"var x = 10; eval('var x = 20;'); return x;",
{handle(Smi::FromInt(20), isolate)}},
{"var x = 1; eval('\"use strict\"; var x = 2;'); return x;",
{handle(Smi::FromInt(1), isolate)}},
{"'use strict'; var x = 1; eval('var x = 2;'); return x;",
{handle(Smi::FromInt(1), isolate)}},
{"var x = 10; eval('x + 20;'); return typeof x;",
{factory->NewStringFromStaticChars("number")}},
{"eval('var y = 10;'); return typeof unallocated;",
{factory->NewStringFromStaticChars("undefined")}},
{"'use strict'; eval('var y = 10;'); return typeof unallocated;",
{factory->NewStringFromStaticChars("undefined")}},
{"eval('var x = 10;'); return typeof x;",
{factory->NewStringFromStaticChars("number")}},
{"var x = {}; eval('var x = 10;'); return typeof x;",
{factory->NewStringFromStaticChars("number")}},
{"'use strict'; var x = {}; eval('var x = 10;'); return typeof x;",
{factory->NewStringFromStaticChars("object")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderEvalParams) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
ExpectedSnippet<1> snippets[] = {
{"var x = 10; return eval('x + p1;');",
{handle(Smi::FromInt(30), isolate), handle(Smi::FromInt(20), isolate)}},
{"var x = 10; eval('p1 = x;'); return p1;",
{handle(Smi::FromInt(10), isolate), handle(Smi::FromInt(20), isolate)}},
{"var a = 10;"
"function inner() { return eval('a + p1;');}"
"return inner();",
{handle(Smi::FromInt(30), isolate), handle(Smi::FromInt(20), isolate)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1) { %s }\n%s(0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderEvalGlobal) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"function add_global() { eval('function f() { z = 33; }; f()'); };"
"function f() { add_global(); return z; }; f();",
{handle(Smi::FromInt(33), isolate)}},
{"function add_global() {\n"
" eval('\"use strict\"; function f() { y = 33; };"
" try { f() } catch(e) {}');\n"
"}\n"
"function f() { add_global(); return typeof y; } f();",
{factory->NewStringFromStaticChars("undefined")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
BytecodeGraphTester tester(isolate, snippets[i].code_snippet);
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
bool get_compare_result(Token::Value opcode, Handle<Object> lhs_value,
Handle<Object> rhs_value) {
switch (opcode) {
case Token::Value::EQ:
return Object::Equals(lhs_value, rhs_value).FromJust();
case Token::Value::NE:
return !Object::Equals(lhs_value, rhs_value).FromJust();
case Token::Value::EQ_STRICT:
return lhs_value->StrictEquals(*rhs_value);
case Token::Value::NE_STRICT:
return !lhs_value->StrictEquals(*rhs_value);
case Token::Value::LT:
return Object::LessThan(lhs_value, rhs_value).FromJust();
case Token::Value::LTE:
return Object::LessThanOrEqual(lhs_value, rhs_value).FromJust();
case Token::Value::GT:
return Object::GreaterThan(lhs_value, rhs_value).FromJust();
case Token::Value::GTE:
return Object::GreaterThanOrEqual(lhs_value, rhs_value).FromJust();
default:
UNREACHABLE();
}
}
const char* get_code_snippet(Token::Value opcode) {
switch (opcode) {
case Token::Value::EQ:
return "return p1 == p2;";
case Token::Value::NE:
return "return p1 != p2;";
case Token::Value::EQ_STRICT:
return "return p1 === p2;";
case Token::Value::NE_STRICT:
return "return p1 !== p2;";
case Token::Value::LT:
return "return p1 < p2;";
case Token::Value::LTE:
return "return p1 <= p2;";
case Token::Value::GT:
return "return p1 > p2;";
case Token::Value::GTE:
return "return p1 >= p2;";
default:
UNREACHABLE();
}
}
TEST(BytecodeGraphBuilderCompare) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
Handle<Object> lhs_values[] = {
factory->NewNumberFromInt(10), factory->NewHeapNumber(3.45),
factory->NewStringFromStaticChars("abc"),
factory->NewNumberFromInt(SMI_MAX), factory->NewNumberFromInt(SMI_MIN)};
Handle<Object> rhs_values[] = {factory->NewNumberFromInt(10),
factory->NewStringFromStaticChars("10"),
factory->NewNumberFromInt(20),
factory->NewStringFromStaticChars("abc"),
factory->NewHeapNumber(3.45),
factory->NewNumberFromInt(SMI_MAX),
factory->NewNumberFromInt(SMI_MIN)};
for (size_t i = 0; i < arraysize(kCompareOperators); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1, p2) { %s }\n%s({}, {});", kFunctionName,
get_code_snippet(kCompareOperators[i]), kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>, Handle<Object>>();
for (size_t j = 0; j < arraysize(lhs_values); j++) {
for (size_t k = 0; k < arraysize(rhs_values); k++) {
Handle<Object> return_value =
callable(lhs_values[j], rhs_values[k]).ToHandleChecked();
bool result = get_compare_result(kCompareOperators[i], lhs_values[j],
rhs_values[k]);
CHECK(return_value->SameValue(*factory->ToBoolean(result)));
}
}
}
}
TEST(BytecodeGraphBuilderTestIn) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<2> snippets[] = {
{"return p2 in p1;",
{factory->true_value(), BytecodeGraphTester::NewObject("({val : 10})"),
factory->NewStringFromStaticChars("val")}},
{"return p2 in p1;",
{factory->true_value(), BytecodeGraphTester::NewObject("[]"),
factory->NewStringFromStaticChars("length")}},
{"return p2 in p1;",
{factory->true_value(), BytecodeGraphTester::NewObject("[]"),
factory->NewStringFromStaticChars("toString")}},
{"return p2 in p1;",
{factory->true_value(), BytecodeGraphTester::NewObject("({val : 10})"),
factory->NewStringFromStaticChars("toString")}},
{"return p2 in p1;",
{factory->false_value(), BytecodeGraphTester::NewObject("({val : 10})"),
factory->NewStringFromStaticChars("abc")}},
{"return p2 in p1;",
{factory->false_value(), BytecodeGraphTester::NewObject("({val : 10})"),
factory->NewNumberFromInt(10)}},
{"return p2 in p1;",
{factory->true_value(), BytecodeGraphTester::NewObject("({10 : 'val'})"),
factory->NewNumberFromInt(10)}},
{"return p2 in p1;",
{factory->false_value(),
BytecodeGraphTester::NewObject("({10 : 'val'})"),
factory->NewNumberFromInt(1)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1, p2) { %s }\n%s({}, {});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>, Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0), snippets[i].parameter(1))
.ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderTestInstanceOf) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return p1 instanceof Object;",
{factory->true_value(), BytecodeGraphTester::NewObject("({val : 10})")}},
{"return p1 instanceof String;",
{factory->false_value(), factory->NewStringFromStaticChars("string")}},
{"var cons = function() {};"
"var obj = new cons();"
"return obj instanceof cons;",
{factory->true_value(), factory->undefined_value()}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s(p1) { %s }\n%s({});", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderTryCatch) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
ExpectedSnippet<0> snippets[] = {
{"var a = 1; try { a = 2 } catch(e) { a = 3 }; return a;",
{handle(Smi::FromInt(2), isolate)}},
{"var a; try { undef.x } catch(e) { a = 2 }; return a;",
{handle(Smi::FromInt(2), isolate)}},
{"var a; try { throw 1 } catch(e) { a = e + 2 }; return a;",
{handle(Smi::FromInt(3), isolate)}},
{"var a; try { throw 1 } catch(e) { a = e + 2 };"
" try { throw a } catch(e) { a = e + 3 }; return a;",
{handle(Smi::FromInt(6), isolate)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderTryFinally1) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
ExpectedSnippet<0> snippets[] = {
{"var a = 1; try { a = a + 1; } finally { a = a + 2; }; return a;",
{handle(Smi::FromInt(4), isolate)}},
{"var a = 1; try { a = 2; return 23; } finally { a = 3 }; return a;",
{handle(Smi::FromInt(23), isolate)}},
{"var a = 1; try { a = 2; throw 23; } finally { return a; };",
{handle(Smi::FromInt(2), isolate)}},
{"var a = 1; for (var i = 10; i < 20; i += 5) {"
" try { a = 2; break; } finally { a = 3; }"
"} return a + i;",
{handle(Smi::FromInt(13), isolate)}},
{"var a = 1; for (var i = 10; i < 20; i += 5) {"
" try { a = 2; continue; } finally { a = 3; }"
"} return a + i;",
{handle(Smi::FromInt(23), isolate)}},
{"var a = 1; try { a = 2;"
" try { a = 3; throw 23; } finally { a = 4; }"
"} catch(e) { a = a + e; } return a;",
{handle(Smi::FromInt(27), isolate)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderTryFinally2) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
ExpectedSnippet<0, const char*> snippets[] = {
{"var a = 1; try { a = 2; throw 23; } finally { a = 3 }; return a;",
{"Uncaught 23"}},
{"var a = 1; try { a = 2; throw 23; } finally { throw 42; };",
{"Uncaught 42"}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
v8::Local<v8::String> message = tester.CheckThrowsReturnMessage()->Get();
v8::Local<v8::String> expected_string = v8_str(snippets[i].return_value());
CHECK(
message->Equals(CcTest::isolate()->GetCurrentContext(), expected_string)
.FromJust());
}
}
TEST(BytecodeGraphBuilderThrow) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
// TODO(mythria): Add more tests when real try-catch and deoptimization
// information are supported.
ExpectedSnippet<0, const char*> snippets[] = {
{"throw undefined;", {"Uncaught undefined"}},
{"throw 1;", {"Uncaught 1"}},
{"throw 'Error';", {"Uncaught Error"}},
{"throw 'Error1'; throw 'Error2'", {"Uncaught Error1"}},
{"var a = true; if (a) { throw 'Error'; }", {"Uncaught Error"}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
v8::Local<v8::String> message = tester.CheckThrowsReturnMessage()->Get();
v8::Local<v8::String> expected_string = v8_str(snippets[i].return_value());
CHECK(
message->Equals(CcTest::isolate()->GetCurrentContext(), expected_string)
.FromJust());
}
}
TEST(BytecodeGraphBuilderContext) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var x = 'outer';"
"function f() {"
" 'use strict';"
" {"
" let x = 'inner';"
" (function() {x});"
" }"
"return(x);"
"}"
"f();",
{factory->NewStringFromStaticChars("outer")}},
{"var x = 'outer';"
"function f() {"
" 'use strict';"
" {"
" let x = 'inner ';"
" var innerFunc = function() {return x};"
" }"
"return(innerFunc() + x);"
"}"
"f();",
{factory->NewStringFromStaticChars("inner outer")}},
{"var x = 'outer';"
"function f() {"
" 'use strict';"
" {"
" let x = 'inner ';"
" var innerFunc = function() {return x;};"
" {"
" let x = 'innermost ';"
" var innerMostFunc = function() {return x + innerFunc();};"
" }"
" x = 'inner_changed ';"
" }"
" return(innerMostFunc() + x);"
"}"
"f();",
{factory->NewStringFromStaticChars("innermost inner_changed outer")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s", snippets[i].code_snippet);
BytecodeGraphTester tester(isolate, script.start(), "f");
auto callable = tester.GetCallable<>("f");
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderLoadContext) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"function Outer() {"
" var outerVar = 2;"
" function Inner(innerArg) {"
" this.innerFunc = function () {"
" return outerVar * innerArg;"
" };"
" };"
" this.getInnerFunc = function GetInner() {"
" return new Inner(3).innerFunc;"
" }"
"}"
"var f = new Outer().getInnerFunc();"
"f();",
{factory->NewNumberFromInt(6), factory->undefined_value()}},
{"function Outer() {"
" var outerVar = 2;"
" function Inner(innerArg) {"
" this.innerFunc = function () {"
" outerVar = innerArg; return outerVar;"
" };"
" };"
" this.getInnerFunc = function GetInner() {"
" return new Inner(10).innerFunc;"
" }"
"}"
"var f = new Outer().getInnerFunc();"
"f();",
{factory->NewNumberFromInt(10), factory->undefined_value()}},
{"function testOuter(outerArg) {"
" this.testinnerFunc = function testInner(innerArg) {"
" return innerArg + outerArg;"
" }"
"}"
"var f = new testOuter(10).testinnerFunc;"
"f(0);",
{factory->NewNumberFromInt(14), factory->NewNumberFromInt(4)}},
{"function testOuter(outerArg) {"
" var outerVar = outerArg * 2;"
" this.testinnerFunc = function testInner(innerArg) {"
" outerVar = outerVar + innerArg; return outerVar;"
" }"
"}"
"var f = new testOuter(10).testinnerFunc;"
"f(0);",
{factory->NewNumberFromInt(24), factory->NewNumberFromInt(4)}}};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s", snippets[i].code_snippet);
BytecodeGraphTester tester(isolate, script.start(), "*");
auto callable = tester.GetCallable<Handle<Object>>("f");
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCreateArgumentsNoParameters) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"function f() {return arguments[0];}", {factory->undefined_value()}},
{"function f(a) {return arguments[0];}", {factory->undefined_value()}},
{"function f() {'use strict'; return arguments[0];}",
{factory->undefined_value()}},
{"function f(a) {'use strict'; return arguments[0];}",
{factory->undefined_value()}},
{"function f(...restArgs) {return restArgs[0];}",
{factory->undefined_value()}},
{"function f(a, ...restArgs) {return restArgs[0];}",
{factory->undefined_value()}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s\n%s();", snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCreateArguments) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<3> snippets[] = {
{"function f(a, b, c) {return arguments[0];}",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, b, c) {return arguments[3];}",
{factory->undefined_value(), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, b, c) { b = c; return arguments[1];}",
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, b, c) {'use strict'; return arguments[0];}",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, b, c) {'use strict'; return arguments[3];}",
{factory->undefined_value(), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, b, c) {'use strict'; b = c; return arguments[1];}",
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function inline_func(a, b) { return arguments[0] }"
"function f(a, b, c) {return inline_func(b, c) + arguments[0];}",
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(30)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s\n%s();", snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable =
tester.GetCallable<Handle<Object>, Handle<Object>, Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0), snippets[i].parameter(1),
snippets[i].parameter(2))
.ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderCreateRestArguments) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<3> snippets[] = {
{"function f(...restArgs) {return restArgs[0];}",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, b, ...restArgs) {return restArgs[0];}",
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, b, ...restArgs) {return arguments[2];}",
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, ...restArgs) { return restArgs[2];}",
{factory->undefined_value(), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function f(a, ...restArgs) { return arguments[0] + restArgs[1];}",
{factory->NewNumberFromInt(4), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{"function inline_func(a, ...restArgs) { return restArgs[0] }"
"function f(a, b, c) {return inline_func(b, c) + arguments[0];}",
{factory->NewNumberFromInt(31), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2), factory->NewNumberFromInt(30)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s\n%s();", snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable =
tester.GetCallable<Handle<Object>, Handle<Object>, Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0), snippets[i].parameter(1),
snippets[i].parameter(2))
.ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderRegExpLiterals) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"return /abd/.exec('cccabbdd');", {factory->null_value()}},
{"return /ab+d/.exec('cccabbdd')[0];",
{factory->NewStringFromStaticChars("abbd")}},
{"var a = 3.1414;"
REPEAT_256(SPACE, "a = 3.1414;")
"return /ab+d/.exec('cccabbdd')[0];",
{factory->NewStringFromStaticChars("abbd")}},
{"return /ab+d/.exec('cccabbdd')[1];", {factory->undefined_value()}},
{"return /AbC/i.exec('ssaBC')[0];",
{factory->NewStringFromStaticChars("aBC")}},
{"return 'ssaBC'.match(/AbC/i)[0];",
{factory->NewStringFromStaticChars("aBC")}},
{"return 'ssaBCtAbC'.match(/(AbC)/gi)[1];",
{factory->NewStringFromStaticChars("AbC")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(4096);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderArrayLiterals) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"return [][0];", {factory->undefined_value()}},
{"return [1, 3, 2][1];", {factory->NewNumberFromInt(3)}},
{"var a;" REPEAT_256(SPACE, "a = 9.87;") "return [1, 3, 2][1];",
{factory->NewNumberFromInt(3)}},
{"return ['a', 'b', 'c'][2];", {factory->NewStringFromStaticChars("c")}},
{"var a = 100; return [a, a++, a + 2, a + 3][2];",
{factory->NewNumberFromInt(103)}},
{"var a = 100; return [a, ++a, a + 2, a + 3][1];",
{factory->NewNumberFromInt(101)}},
{"var a = 9.2;"
REPEAT_256(SPACE, "a = 9.34;")
"return [a, ++a, a + 2, a + 3][2];",
{factory->NewHeapNumber(12.34)}},
{"return [[1, 2, 3], ['a', 'b', 'c']][1][0];",
{factory->NewStringFromStaticChars("a")}},
{"var t = 't'; return [[t, t + 'est'], [1 + t]][0][1];",
{factory->NewStringFromStaticChars("test")}},
{"var t = 't'; return [[t, t + 'est'], [1 + t]][1][0];",
{factory->NewStringFromStaticChars("1t")}}};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(4096);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderObjectLiterals) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"return { }.name;", {factory->undefined_value()}},
{"return { name: 'string', val: 9.2 }.name;",
{factory->NewStringFromStaticChars("string")}},
{"var a;\n"
REPEAT_256(SPACE, "a = 1.23;\n")
"return { name: 'string', val: 9.2 }.name;",
{factory->NewStringFromStaticChars("string")}},
{"return { name: 'string', val: 9.2 }['name'];",
{factory->NewStringFromStaticChars("string")}},
{"var a = 15; return { name: 'string', val: a }.val;",
{factory->NewNumberFromInt(15)}},
{"var a;"
REPEAT_256(SPACE, "a = 1.23;")
"return { name: 'string', val: a }.val;",
{factory->NewHeapNumber(1.23)}},
{"var a = 15; var b = 'val'; return { name: 'string', val: a }[b];",
{factory->NewNumberFromInt(15)}},
{"var a = 5; return { val: a, val: a + 1 }.val;",
{factory->NewNumberFromInt(6)}},
{"return { func: function() { return 'test' } }.func();",
{factory->NewStringFromStaticChars("test")}},
{"return { func(a) { return a + 'st'; } }.func('te');",
{factory->NewStringFromStaticChars("test")}},
{"return { get a() { return 22; } }.a;", {factory->NewNumberFromInt(22)}},
{"var a = { get b() { return this.x + 't'; },\n"
" set b(val) { this.x = val + 's' } };\n"
"a.b = 'te';\n"
"return a.b;",
{factory->NewStringFromStaticChars("test")}},
{"var a = 123; return { 1: a }[1];", {factory->NewNumberFromInt(123)}},
{"return Object.getPrototypeOf({ __proto__: null });",
{factory->null_value()}},
{"var a = 'test'; return { [a]: 1 }.test;",
{factory->NewNumberFromInt(1)}},
{"var a = 'test'; return { b: a, [a]: a + 'ing' }['test']",
{factory->NewStringFromStaticChars("testing")}},
{"var a = 'proto_str';\n"
"var b = { [a]: 1, __proto__: { var : a } };\n"
"return Object.getPrototypeOf(b).var",
{factory->NewStringFromStaticChars("proto_str")}},
{"var n = 'name';\n"
"return { [n]: 'val', get a() { return 987 } }['a'];",
{factory->NewNumberFromInt(987)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(4096);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderIf) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"if (p1 > 1) return 1;\n"
"return -1;",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(2)}},
{"if (p1 > 1) return 1;\n"
"return -1;",
{factory->NewNumberFromInt(-1), factory->NewNumberFromInt(1)}},
{"if (p1 > 1) { return 1; } else { return -1; }",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(2)}},
{"if (p1 > 1) { return 1; } else { return -1; }",
{factory->NewNumberFromInt(-1), factory->NewNumberFromInt(1)}},
{"if (p1 > 50) {\n"
" return 1;\n"
"} else if (p1 < 10) {\n"
" return 10;\n"
"} else {\n"
" return -10;\n"
"}",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(51)}},
{"if (p1 > 50) {\n"
" return 1;\n"
"} else if (p1 < 10) {\n"
" return 10;\n"
"} else {\n"
" return 100;\n"
"}",
{factory->NewNumberFromInt(10), factory->NewNumberFromInt(9)}},
{"if (p1 > 50) {\n"
" return 1;\n"
"} else if (p1 < 10) {\n"
" return 10;\n"
"} else {\n"
" return 100;\n"
"}",
{factory->NewNumberFromInt(100), factory->NewNumberFromInt(10)}},
{"if (p1 >= 0) {\n"
" if (p1 > 10) { return 2; } else { return 1; }\n"
"} else {\n"
" if (p1 < -10) { return -2; } else { return -1; }\n"
"}",
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(100)}},
{"if (p1 >= 0) {\n"
" if (p1 > 10) { return 2; } else { return 1; }\n"
"} else {\n"
" if (p1 < -10) { return -2; } else { return -1; }\n"
"}",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(10)}},
{"if (p1 >= 0) {\n"
" if (p1 > 10) { return 2; } else { return 1; }\n"
"} else {\n"
" if (p1 < -10) { return -2; } else { return -1; }\n"
"}",
{factory->NewNumberFromInt(-2), factory->NewNumberFromInt(-11)}},
{"if (p1 >= 0) {\n"
" if (p1 > 10) { return 2; } else { return 1; }\n"
"} else {\n"
" if (p1 < -10) { return -2; } else { return -1; }\n"
"}",
{factory->NewNumberFromInt(-1), factory->NewNumberFromInt(-10)}},
{"var b = 20, c;"
"if (p1 >= 0) {\n"
" if (b > 0) { c = 2; } else { c = 3; }\n"
"} else {\n"
" if (b < -10) { c = -2; } else { c = -1; }\n"
"}"
"return c;",
{factory->NewNumberFromInt(-1), factory->NewNumberFromInt(-1)}},
{"var b = 20, c = 10;"
"if (p1 >= 0) {\n"
" if (b < 0) { c = 2; }\n"
"} else {\n"
" if (b < -10) { c = -2; } else { c = -1; }\n"
"}"
"return c;",
{factory->NewNumberFromInt(10), factory->NewNumberFromInt(1)}},
{"var x = 2, a = 10, b = 20, c, d;"
"x = 0;"
"if (a) {\n"
" b = x;"
" if (b > 0) { c = 2; } else { c = 3; }\n"
" x = 4; d = 2;"
"} else {\n"
" d = 3;\n"
"}"
"x = d;"
"function f1() {x}"
"return x + c;",
{factory->NewNumberFromInt(5), factory->NewNumberFromInt(-1)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1) { %s };\n%s(0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderConditionalOperator) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<1> snippets[] = {
{"return (p1 > 1) ? 1 : -1;",
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(2)}},
{"return (p1 > 1) ? 1 : -1;",
{factory->NewNumberFromInt(-1), factory->NewNumberFromInt(0)}},
{"return (p1 > 50) ? 1 : ((p1 < 10) ? 10 : -10);",
{factory->NewNumberFromInt(10), factory->NewNumberFromInt(2)}},
{"return (p1 > 50) ? 1 : ((p1 < 10) ? 10 : -10);",
{factory->NewNumberFromInt(-10), factory->NewNumberFromInt(20)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1) { %s };\n%s(0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderSwitch) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
const char* switch_code =
"switch (p1) {\n"
" case 1: return 0;\n"
" case 2: return 1;\n"
" case 3:\n"
" case 4: return 2;\n"
" case 9: break;\n"
" default: return 3;\n"
"}\n"
"return 9;";
ExpectedSnippet<1> snippets[] = {
{switch_code,
{factory->NewNumberFromInt(0), factory->NewNumberFromInt(1)}},
{switch_code,
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(2)}},
{switch_code,
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{switch_code,
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(4)}},
{switch_code,
{factory->NewNumberFromInt(9), factory->NewNumberFromInt(9)}},
{switch_code,
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(5)}},
{switch_code,
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(6)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1) { %s };\n%s(0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderSwitchMerge) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
const char* switch_code =
"var x = 10;"
"switch (p1) {\n"
" case 1: x = 0;\n"
" case 2: x = 1;\n"
" case 3:\n"
" case 4: x = 2; break;\n"
" case 5: x = 3;\n"
" case 9: break;\n"
" default: x = 4;\n"
"}\n"
"return x;";
ExpectedSnippet<1> snippets[] = {
{switch_code,
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(1)}},
{switch_code,
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(2)}},
{switch_code,
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(3)}},
{switch_code,
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(4)}},
{switch_code,
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(5)}},
{switch_code,
{factory->NewNumberFromInt(10), factory->NewNumberFromInt(9)}},
{switch_code,
{factory->NewNumberFromInt(4), factory->NewNumberFromInt(6)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1) { %s };\n%s(0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0)).ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderNestedSwitch) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
const char* switch_code =
"switch (p1) {\n"
" case 0: {"
" switch (p2) { case 0: return 0; case 1: return 1; case 2: break; }\n"
" return -1;"
" }\n"
" case 1: {"
" switch (p2) { case 0: return 2; case 1: return 3; }\n"
" }\n"
" case 2: break;"
" }\n"
"return -2;";
ExpectedSnippet<2> snippets[] = {
{switch_code,
{factory->NewNumberFromInt(0), factory->NewNumberFromInt(0),
factory->NewNumberFromInt(0)}},
{switch_code,
{factory->NewNumberFromInt(1), factory->NewNumberFromInt(0),
factory->NewNumberFromInt(1)}},
{switch_code,
{factory->NewNumberFromInt(-1), factory->NewNumberFromInt(0),
factory->NewNumberFromInt(2)}},
{switch_code,
{factory->NewNumberFromInt(-1), factory->NewNumberFromInt(0),
factory->NewNumberFromInt(3)}},
{switch_code,
{factory->NewNumberFromInt(2), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(0)}},
{switch_code,
{factory->NewNumberFromInt(3), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(1)}},
{switch_code,
{factory->NewNumberFromInt(-2), factory->NewNumberFromInt(1),
factory->NewNumberFromInt(2)}},
{switch_code,
{factory->NewNumberFromInt(-2), factory->NewNumberFromInt(2),
factory->NewNumberFromInt(0)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(2048);
SNPrintF(script, "function %s(p1, p2) { %s };\n%s(0, 0);", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<Handle<Object>, Handle<Object>>();
Handle<Object> return_value =
callable(snippets[i].parameter(0), snippets[i].parameter(1))
.ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderBreakableBlocks) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var x = 0;\n"
"my_heart: {\n"
" x = x + 1;\n"
" break my_heart;\n"
" x = x + 2;\n"
"}\n"
"return x;\n",
{factory->NewNumberFromInt(1)}},
{"var sum = 0;\n"
"outta_here: {\n"
" for (var x = 0; x < 10; ++x) {\n"
" for (var y = 0; y < 3; ++y) {\n"
" ++sum;\n"
" if (x + y == 12) { break outta_here; }\n"
" }\n"
" }\n"
"}\n"
"return sum;",
{factory->NewNumber(30)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderWhile) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var x = 1; while (x < 1) { x *= 100; } return x;",
{factory->NewNumberFromInt(1)}},
{"var x = 1, y = 0; while (x < 7) { y += x * x; x += 1; } return y;",
{factory->NewNumberFromInt(91)}},
{"var x = 1; while (true) { x += 1; if (x == 10) break; } return x;",
{factory->NewNumberFromInt(10)}},
{"var x = 1; while (false) { x += 1; } return x;",
{factory->NewNumberFromInt(1)}},
{"var x = 0;\n"
"while (true) {\n"
" while (x < 10) {\n"
" x = x * x + 1;\n"
" }"
" x += 1;\n"
" break;\n"
"}\n"
"return x;",
{factory->NewNumberFromInt(27)}},
{"var x = 1, y = 0;\n"
"while (x < 7) {\n"
" x += 1;\n"
" if (x == 2) continue;\n"
" if (x == 3) continue;\n"
" y += x * x;\n"
" if (x == 4) break;\n"
"}\n"
"return y;",
{factory->NewNumberFromInt(16)}}};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderDo) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var x = 1; do { x *= 100; } while (x < 100); return x;",
{factory->NewNumberFromInt(100)}},
{"var x = 1; do { x = x * x + 1; } while (x < 7) return x;",
{factory->NewNumberFromInt(26)}},
{"var x = 1; do { x += 1; } while (false); return x;",
{factory->NewNumberFromInt(2)}},
{"var x = 1, y = 0;\n"
"do {\n"
" x += 1;\n"
" if (x == 2) continue;\n"
" if (x == 3) continue;\n"
" y += x * x;\n"
" if (x == 4) break;\n"
"} while (x < 7);\n"
"return y;",
{factory->NewNumberFromInt(16)}},
{"var x = 0, sum = 0;\n"
"do {\n"
" do {\n"
" ++sum;\n"
" ++x;\n"
" } while (sum < 1 || x < 2)\n"
" do {\n"
" ++x;\n"
" } while (x < 1)\n"
"} while (sum < 3)\n"
"return sum;",
{factory->NewNumber(3)}}};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderFor) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"for (var x = 0;; x = 2 * x + 1) { if (x > 10) return x; }",
{factory->NewNumberFromInt(15)}},
{"for (var x = 0; true; x = 2 * x + 1) { if (x > 100) return x; }",
{factory->NewNumberFromInt(127)}},
{"for (var x = 0; false; x = 2 * x + 1) { if (x > 100) return x; } "
"return 0;",
{factory->NewNumberFromInt(0)}},
{"for (var x = 0; x < 200; x = 2 * x + 1) { x = x; } return x;",
{factory->NewNumberFromInt(255)}},
{"for (var x = 0; x < 200; x = 2 * x + 1) {} return x;",
{factory->NewNumberFromInt(255)}},
{"var sum = 0;\n"
"for (var x = 0; x < 200; x += 1) {\n"
" if (x % 2) continue;\n"
" if (sum > 10) break;\n"
" sum += x;\n"
"}\n"
"return sum;",
{factory->NewNumberFromInt(12)}},
{"var sum = 0;\n"
"for (var w = 0; w < 2; w++) {\n"
" for (var x = 0; x < 200; x += 1) {\n"
" if (x % 2) continue;\n"
" if (x > 4) break;\n"
" sum += x + w;\n"
" }\n"
"}\n"
"return sum;",
{factory->NewNumberFromInt(15)}},
{"var sum = 0;\n"
"for (var w = 0; w < 2; w++) {\n"
" if (w == 1) break;\n"
" for (var x = 0; x < 200; x += 1) {\n"
" if (x % 2) continue;\n"
" if (x > 4) break;\n"
" sum += x + w;\n"
" }\n"
"}\n"
"return sum;",
{factory->NewNumberFromInt(6)}},
{"var sum = 0;\n"
"for (var w = 0; w < 3; w++) {\n"
" if (w == 1) continue;\n"
" for (var x = 0; x < 200; x += 1) {\n"
" if (x % 2) continue;\n"
" if (x > 4) break;\n"
" sum += x + w;\n"
" }\n"
"}\n"
"return sum;",
{factory->NewNumberFromInt(18)}},
{"var sum = 0;\n"
"for (var x = 1; x < 10; x += 2) {\n"
" for (var y = x; y < x + 2; y++) {\n"
" sum += y * y;\n"
" }\n"
"}\n"
"return sum;",
{factory->NewNumberFromInt(385)}},
{"var sum = 0;\n"
"for (var x = 0; x < 5; x++) {\n"
" for (var y = 0; y < 5; y++) {\n"
" ++sum;\n"
" }\n"
"}\n"
"for (var x = 0; x < 5; x++) {\n"
" for (var y = 0; y < 5; y++) {\n"
" ++sum;\n"
" }\n"
"}\n"
"return sum;",
{factory->NewNumberFromInt(50)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderForIn) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var sum = 0;\n"
"var empty = null;\n"
"for (var x in empty) { sum++; }\n"
"return sum;",
{factory->NewNumberFromInt(0)}},
{"var sum = 100;\n"
"var empty = 1;\n"
"for (var x in empty) { sum++; }\n"
"return sum;",
{factory->NewNumberFromInt(100)}},
{"for (var x in [ 10, 20, 30 ]) {}\n"
"return 2;",
{factory->NewNumberFromInt(2)}},
{"var last = 0;\n"
"for (var x in [ 10, 20, 30 ]) {\n"
" last = x;\n"
"}\n"
"return +last;",
{factory->NewNumberFromInt(2)}},
{"var first = -1;\n"
"for (var x in [ 10, 20, 30 ]) {\n"
" first = +x;\n"
" if (first > 0) break;\n"
"}\n"
"return first;",
{factory->NewNumberFromInt(1)}},
{"var first = -1;\n"
"for (var x in [ 10, 20, 30 ]) {\n"
" if (first >= 0) continue;\n"
" first = x;\n"
"}\n"
"return +first;",
{factory->NewNumberFromInt(0)}},
{"var sum = 0;\n"
"for (var x in [ 10, 20, 30 ]) {\n"
" for (var y in [ 11, 22, 33, 44, 55, 66, 77 ]) {\n"
" sum += 1;\n"
" }\n"
"}\n"
"return sum;",
{factory->NewNumberFromInt(21)}},
{"var sum = 0;\n"
"for (var x in [ 10, 20, 30 ]) {\n"
" for (var y in [ 11, 22, 33, 44, 55, 66, 77 ]) {\n"
" if (sum == 7) break;\n"
" if (sum == 6) continue;\n"
" sum += 1;\n"
" }\n"
"}\n"
"return sum;",
{factory->NewNumberFromInt(6)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderForOf) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{" var r = 0;\n"
" for (var a of [0,6,7,9]) { r += a; }\n"
" return r;\n",
{handle(Smi::FromInt(22), isolate)}},
{" var r = '';\n"
" for (var a of 'foobar') { r = a + r; }\n"
" return r;\n",
{factory->NewStringFromStaticChars("raboof")}},
{" var a = [1, 2, 3];\n"
" a.name = 4;\n"
" var r = 0;\n"
" for (var x of a) { r += x; }\n"
" return r;\n",
{handle(Smi::FromInt(6), isolate)}},
{" var r = '';\n"
" var data = [1, 2, 3]; \n"
" for (a of data) { delete data[0]; r += a; } return r;",
{factory->NewStringFromStaticChars("123")}},
{" var r = '';\n"
" var data = [1, 2, 3]; \n"
" for (a of data) { delete data[2]; r += a; } return r;",
{factory->NewStringFromStaticChars("12undefined")}},
{" var r = '';\n"
" var data = [1, 2, 3]; \n"
" for (a of data) { delete data; r += a; } return r;",
{factory->NewStringFromStaticChars("123")}},
{" var r = '';\n"
" var input = 'foobar';\n"
" for (var a of input) {\n"
" if (a == 'b') break;\n"
" r += a;\n"
" }\n"
" return r;\n",
{factory->NewStringFromStaticChars("foo")}},
{" var r = '';\n"
" var input = 'foobar';\n"
" for (var a of input) {\n"
" if (a == 'b') continue;\n"
" r += a;\n"
" }\n"
" return r;\n",
{factory->NewStringFromStaticChars("fooar")}},
{" var r = '';\n"
" var data = [1, 2, 3, 4]; \n"
" for (a of data) { data[2] = 567; r += a; }\n"
" return r;\n",
{factory->NewStringFromStaticChars("125674")}},
{" var r = '';\n"
" var data = [1, 2, 3, 4]; \n"
" for (a of data) { data[4] = 567; r += a; }\n"
" return r;\n",
{factory->NewStringFromStaticChars("1234567")}},
{" var r = '';\n"
" var data = [1, 2, 3, 4]; \n"
" for (a of data) { data[5] = 567; r += a; }\n"
" return r;\n",
{factory->NewStringFromStaticChars("1234undefined567")}},
{" var r = '';\n"
" var obj = new Object();\n"
" obj[Symbol.iterator] = function() { return {\n"
" index: 3,\n"
" data: ['a', 'b', 'c', 'd'],"
" next: function() {"
" return {"
" done: this.index == -1,\n"
" value: this.index < 0 ? undefined : this.data[this.index--]\n"
" }\n"
" }\n"
" }}\n"
" for (a of obj) { r += a }\n"
" return r;\n",
{factory->NewStringFromStaticChars("dcba")}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
void TestJumpWithConstantsAndWideConstants(size_t shard) {
const int kStep = 46;
int start = static_cast<int>(7 + 17 * shard);
for (int constants = start; constants < 300; constants += kStep) {
std::stringstream filler_os;
// Generate a string that consumes constant pool entries and
// spread out branch distances in script below.
for (int i = 0; i < constants; i++) {
filler_os << "var x_ = 'x_" << i << "';\n";
}
std::string filler(filler_os.str());
std::stringstream script_os;
script_os << "function " << kFunctionName << "(a) {\n";
script_os << " " << filler;
script_os << " for (var i = a; i < 2; i++) {\n";
script_os << " " << filler;
script_os << " if (i == 0) { " << filler << "i = 10; continue; }\n";
script_os << " else if (i == a) { " << filler << "i = 12; break; }\n";
script_os << " else { " << filler << " }\n";
script_os << " }\n";
script_os << " return i;\n";
script_os << "}\n";
script_os << kFunctionName << "(0);\n";
std::string script(script_os.str());
HandleAndZoneScope scope;
auto isolate = scope.main_isolate();
auto factory = isolate->factory();
BytecodeGraphTester tester(isolate, script.c_str());
auto callable = tester.GetCallable<Handle<Object>>();
for (int a = 0; a < 3; a++) {
Handle<Object> return_val =
callable(factory->NewNumberFromInt(a)).ToHandleChecked();
static const int results[] = {11, 12, 2};
CHECK_EQ(Handle<Smi>::cast(return_val)->value(), results[a]);
}
}
}
SHARD_TEST_BY_4(JumpWithConstantsAndWideConstants)
TEST(BytecodeGraphBuilderDoExpressions) {
bool old_flag = FLAG_harmony_do_expressions;
FLAG_harmony_do_expressions = true;
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"var a = do {}; return a;", {factory->undefined_value()}},
{"var a = do { var x = 100; }; return a;", {factory->undefined_value()}},
{"var a = do { var x = 100; }; return a;", {factory->undefined_value()}},
{"var a = do { var x = 100; x++; }; return a;",
{handle(Smi::FromInt(100), isolate)}},
{"var i = 0; for (; i < 5;) { i = do { if (i == 3) { break; }; i + 1; }};"
"return i;",
{handle(Smi::FromInt(3), isolate)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
FLAG_harmony_do_expressions = old_flag;
}
TEST(BytecodeGraphBuilderWithStatement) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
ExpectedSnippet<0> snippets[] = {
{"with({x:42}) return x;", {handle(Smi::FromInt(42), isolate)}},
{"with({}) { var y = 10; return y;}",
{handle(Smi::FromInt(10), isolate)}},
{"var y = {x:42};"
" function inner() {"
" var x = 20;"
" with(y) return x;"
"}"
"return inner();",
{handle(Smi::FromInt(42), isolate)}},
{"var y = {x:42};"
" function inner(o) {"
" var x = 20;"
" with(o) return x;"
"}"
"return inner(y);",
{handle(Smi::FromInt(42), isolate)}},
};
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderConstDeclaration) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"const x = 3; return x;", {handle(Smi::FromInt(3), isolate)}},
{"let x = 10; x = x + 20; return x;",
{handle(Smi::FromInt(30), isolate)}},
{"let x = 10; x = 20; return x;", {handle(Smi::FromInt(20), isolate)}},
{"let x; x = 20; return x;", {handle(Smi::FromInt(20), isolate)}},
{"let x; return x;", {factory->undefined_value()}},
{"var x = 10; { let x = 30; } return x;",
{handle(Smi::FromInt(10), isolate)}},
{"let x = 10; { let x = 20; } return x;",
{handle(Smi::FromInt(10), isolate)}},
{"var x = 10; eval('let x = 20;'); return x;",
{handle(Smi::FromInt(10), isolate)}},
{"var x = 10; eval('const x = 20;'); return x;",
{handle(Smi::FromInt(10), isolate)}},
{"var x = 10; { const x = 20; } return x;",
{handle(Smi::FromInt(10), isolate)}},
{"var x = 10; { const x = 20; return x;} return -1;",
{handle(Smi::FromInt(20), isolate)}},
{"var a = 10;\n"
"for (var i = 0; i < 10; ++i) {\n"
" const x = i;\n" // const declarations are block scoped.
" a = a + x;\n"
"}\n"
"return a;\n",
{handle(Smi::FromInt(55), isolate)}},
};
// Tests for sloppy mode.
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
// Tests for strict mode.
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() {'use strict'; %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderConstDeclarationLookupSlots) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
Factory* factory = isolate->factory();
ExpectedSnippet<0> snippets[] = {
{"const x = 3; function f1() {return x;}; return x;",
{handle(Smi::FromInt(3), isolate)}},
{"let x = 10; x = x + 20; function f1() {return x;}; return x;",
{handle(Smi::FromInt(30), isolate)}},
{"let x; x = 20; function f1() {return x;}; return x;",
{handle(Smi::FromInt(20), isolate)}},
{"let x; function f1() {return x;}; return x;",
{factory->undefined_value()}},
};
// Tests for sloppy mode.
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
// Tests for strict mode.
for (size_t i = 0; i < arraysize(snippets); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() {'use strict'; %s }\n%s();", kFunctionName,
snippets[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*snippets[i].return_value()));
}
}
TEST(BytecodeGraphBuilderConstInLookupContextChain) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
const char* prologue =
"function OuterMost() {\n"
" const outerConst = 10;\n"
" let outerLet = 20;\n"
" function Outer() {\n"
" function Inner() {\n"
" this.innerFunc = function() { ";
const char* epilogue =
" }\n"
" }\n"
" this.getInnerFunc ="
" function() {return new Inner().innerFunc;}\n"
" }\n"
" this.getOuterFunc ="
" function() {return new Outer().getInnerFunc();}"
"}\n"
"var f = new OuterMost().getOuterFunc();\n"
"f();\n";
// Tests for let / constant.
ExpectedSnippet<0> const_decl[] = {
{"return outerConst;", {handle(Smi::FromInt(10), isolate)}},
{"return outerLet;", {handle(Smi::FromInt(20), isolate)}},
{"outerLet = 30; return outerLet;", {handle(Smi::FromInt(30), isolate)}},
{"var outerLet = 40; return outerLet;",
{handle(Smi::FromInt(40), isolate)}},
{"var outerConst = 50; return outerConst;",
{handle(Smi::FromInt(50), isolate)}},
{"try { outerConst = 30 } catch(e) { return -1; }",
{handle(Smi::FromInt(-1), isolate)}}};
for (size_t i = 0; i < arraysize(const_decl); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "%s %s %s", prologue, const_decl[i].code_snippet,
epilogue);
BytecodeGraphTester tester(isolate, script.start(), "*");
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
CHECK(return_value->SameValue(*const_decl[i].return_value()));
}
}
TEST(BytecodeGraphBuilderIllegalConstDeclaration) {
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
ExpectedSnippet<0, const char*> illegal_const_decl[] = {
{"const x = x = 10 + 3; return x;",
{"Uncaught ReferenceError: x is not defined"}},
{"const x = 10; x = 20; return x;",
{"Uncaught TypeError: Assignment to constant variable."}},
{"const x = 10; { x = 20; } return x;",
{"Uncaught TypeError: Assignment to constant variable."}},
{"const x = 10; eval('x = 20;'); return x;",
{"Uncaught TypeError: Assignment to constant variable."}},
{"let x = x + 10; return x;",
{"Uncaught ReferenceError: x is not defined"}},
{"'use strict'; (function f1() { f1 = 123; })() ",
{"Uncaught TypeError: Assignment to constant variable."}},
};
// Tests for sloppy mode.
for (size_t i = 0; i < arraysize(illegal_const_decl); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() { %s }\n%s();", kFunctionName,
illegal_const_decl[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
v8::Local<v8::String> message = tester.CheckThrowsReturnMessage()->Get();
v8::Local<v8::String> expected_string =
v8_str(illegal_const_decl[i].return_value());
CHECK(
message->Equals(CcTest::isolate()->GetCurrentContext(), expected_string)
.FromJust());
}
// Tests for strict mode.
for (size_t i = 0; i < arraysize(illegal_const_decl); i++) {
ScopedVector<char> script(1024);
SNPrintF(script, "function %s() {'use strict'; %s }\n%s();", kFunctionName,
illegal_const_decl[i].code_snippet, kFunctionName);
BytecodeGraphTester tester(isolate, script.start());
v8::Local<v8::String> message = tester.CheckThrowsReturnMessage()->Get();
v8::Local<v8::String> expected_string =
v8_str(illegal_const_decl[i].return_value());
CHECK(
message->Equals(CcTest::isolate()->GetCurrentContext(), expected_string)
.FromJust());
}
}
class CountBreakDebugDelegate : public v8::debug::DebugDelegate {
public:
void BreakProgramRequested(v8::Local<v8::Context> paused_context,
v8::Local<v8::Object> exec_state,
v8::Local<v8::Value> break_points_hit) override {
debug_break_count++;
}
int debug_break_count = 0;
};
TEST(BytecodeGraphBuilderDebuggerStatement) {
CountBreakDebugDelegate delegate;
HandleAndZoneScope scope;
Isolate* isolate = scope.main_isolate();
v8::debug::SetDebugDelegate(CcTest::isolate(), &delegate);
ExpectedSnippet<0> snippet = {
"function f() {"
" debugger;"
"}"
"f();",
{isolate->factory()->undefined_value()}};
BytecodeGraphTester tester(isolate, snippet.code_snippet);
auto callable = tester.GetCallable<>();
Handle<Object> return_value = callable().ToHandleChecked();
v8::debug::SetDebugDelegate(CcTest::isolate(), nullptr);
CHECK(return_value.is_identical_to(snippet.return_value()));
CHECK_EQ(2, delegate.debug_break_count);
}
} // namespace compiler
} // namespace internal
} // namespace v8
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