2d0c43ad09
- Added automatic loading of test suites git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@375 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
259 lines
9.0 KiB
C++
259 lines
9.0 KiB
C++
// Copyright 2008 the V8 project authors. All rights reserved.
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above
|
|
// copyright notice, this list of conditions and the following
|
|
// disclaimer in the documentation and/or other materials provided
|
|
// with the distribution.
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
// contributors may be used to endorse or promote products derived
|
|
// from this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
#include <v8.h>
|
|
#include <cstring>
|
|
#include <cstdio>
|
|
#include <cstdlib>
|
|
|
|
|
|
void RunShell(v8::Handle<v8::Context> context);
|
|
bool ExecuteString(v8::Handle<v8::String> source,
|
|
v8::Handle<v8::Value> name,
|
|
bool print_result,
|
|
bool report_exceptions);
|
|
v8::Handle<v8::Value> Print(const v8::Arguments& args);
|
|
v8::Handle<v8::Value> Load(const v8::Arguments& args);
|
|
v8::Handle<v8::Value> Quit(const v8::Arguments& args);
|
|
v8::Handle<v8::Value> Version(const v8::Arguments& args);
|
|
v8::Handle<v8::String> ReadFile(const char* name);
|
|
void ReportException(v8::TryCatch* handler);
|
|
|
|
|
|
int main(int argc, char* argv[]) {
|
|
v8::V8::SetFlagsFromCommandLine(&argc, argv, true);
|
|
v8::HandleScope handle_scope;
|
|
// Create a template for the global object.
|
|
v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New();
|
|
// Bind the global 'print' function to the C++ Print callback.
|
|
global->Set(v8::String::New("print"), v8::FunctionTemplate::New(Print));
|
|
// Bind the global 'load' function to the C++ Load callback.
|
|
global->Set(v8::String::New("load"), v8::FunctionTemplate::New(Load));
|
|
// Bind the 'quit' function
|
|
global->Set(v8::String::New("quit"), v8::FunctionTemplate::New(Quit));
|
|
// Bind the 'version' function
|
|
global->Set(v8::String::New("version"), v8::FunctionTemplate::New(Version));
|
|
// Create a new execution environment containing the built-in
|
|
// functions
|
|
v8::Handle<v8::Context> context = v8::Context::New(NULL, global);
|
|
// Enter the newly created execution environment.
|
|
v8::Context::Scope context_scope(context);
|
|
bool run_shell = (argc == 1);
|
|
for (int i = 1; i < argc; i++) {
|
|
const char* str = argv[i];
|
|
if (strcmp(str, "--shell") == 0) {
|
|
run_shell = true;
|
|
} else if (strcmp(str, "-f") == 0) {
|
|
// Ignore any -f flags for compatibility with the other stand-
|
|
// alone JavaScript engines.
|
|
continue;
|
|
} else if (strncmp(str, "--", 2) == 0) {
|
|
printf("Warning: unknown flag %s.\n", str);
|
|
} else if (strcmp(str, "-e") == 0 && i + 1 < argc) {
|
|
// Execute argument given to -e option directly
|
|
v8::HandleScope handle_scope;
|
|
v8::Handle<v8::String> file_name = v8::String::New("unnamed");
|
|
v8::Handle<v8::String> source = v8::String::New(argv[i + 1]);
|
|
if (!ExecuteString(source, file_name, false, true))
|
|
return 1;
|
|
i++;
|
|
} else {
|
|
// Use all other arguments as names of files to load and run.
|
|
v8::HandleScope handle_scope;
|
|
v8::Handle<v8::String> file_name = v8::String::New(str);
|
|
v8::Handle<v8::String> source = ReadFile(str);
|
|
if (source.IsEmpty()) {
|
|
printf("Error reading '%s'\n", str);
|
|
return 1;
|
|
}
|
|
if (!ExecuteString(source, file_name, false, true))
|
|
return 1;
|
|
}
|
|
}
|
|
if (run_shell) RunShell(context);
|
|
return 0;
|
|
}
|
|
|
|
|
|
// The callback that is invoked by v8 whenever the JavaScript 'print'
|
|
// function is called. Prints its arguments on stdout separated by
|
|
// spaces and ending with a newline.
|
|
v8::Handle<v8::Value> Print(const v8::Arguments& args) {
|
|
bool first = true;
|
|
for (int i = 0; i < args.Length(); i++) {
|
|
v8::HandleScope handle_scope;
|
|
if (first) {
|
|
first = false;
|
|
} else {
|
|
printf(" ");
|
|
}
|
|
v8::String::Utf8Value str(args[i]);
|
|
printf("%s", *str);
|
|
}
|
|
printf("\n");
|
|
return v8::Undefined();
|
|
}
|
|
|
|
|
|
// The callback that is invoked by v8 whenever the JavaScript 'load'
|
|
// function is called. Loads, compiles and executes its argument
|
|
// JavaScript file.
|
|
v8::Handle<v8::Value> Load(const v8::Arguments& args) {
|
|
for (int i = 0; i < args.Length(); i++) {
|
|
v8::HandleScope handle_scope;
|
|
v8::String::Utf8Value file(args[i]);
|
|
v8::Handle<v8::String> source = ReadFile(*file);
|
|
if (source.IsEmpty()) {
|
|
return v8::ThrowException(v8::String::New("Error loading file"));
|
|
}
|
|
if (!ExecuteString(source, v8::String::New(*file), false, false)) {
|
|
return v8::ThrowException(v8::String::New("Error executing file"));
|
|
}
|
|
}
|
|
return v8::Undefined();
|
|
}
|
|
|
|
|
|
// The callback that is invoked by v8 whenever the JavaScript 'quit'
|
|
// function is called. Quits.
|
|
v8::Handle<v8::Value> Quit(const v8::Arguments& args) {
|
|
// If not arguments are given args[0] will yield undefined which
|
|
// converts to the integer value 0.
|
|
int exit_code = args[0]->Int32Value();
|
|
exit(exit_code);
|
|
return v8::Undefined();
|
|
}
|
|
|
|
|
|
v8::Handle<v8::Value> Version(const v8::Arguments& args) {
|
|
return v8::String::New(v8::V8::GetVersion());
|
|
}
|
|
|
|
|
|
// Reads a file into a v8 string.
|
|
v8::Handle<v8::String> ReadFile(const char* name) {
|
|
FILE* file = fopen(name, "rb");
|
|
if (file == NULL) return v8::Handle<v8::String>();
|
|
|
|
fseek(file, 0, SEEK_END);
|
|
int size = ftell(file);
|
|
rewind(file);
|
|
|
|
char* chars = new char[size + 1];
|
|
chars[size] = '\0';
|
|
for (int i = 0; i < size;) {
|
|
int read = fread(&chars[i], 1, size - i, file);
|
|
i += read;
|
|
}
|
|
fclose(file);
|
|
v8::Handle<v8::String> result = v8::String::New(chars, size);
|
|
delete[] chars;
|
|
return result;
|
|
}
|
|
|
|
|
|
// The read-eval-execute loop of the shell.
|
|
void RunShell(v8::Handle<v8::Context> context) {
|
|
printf("V8 version %s\n", v8::V8::GetVersion());
|
|
static const int kBufferSize = 256;
|
|
while (true) {
|
|
char buffer[kBufferSize];
|
|
printf("> ");
|
|
char* str = fgets(buffer, kBufferSize, stdin);
|
|
if (str == NULL) break;
|
|
v8::HandleScope handle_scope;
|
|
ExecuteString(v8::String::New(str),
|
|
v8::String::New("(shell)"),
|
|
true,
|
|
true);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
|
|
// Executes a string within the current v8 context.
|
|
bool ExecuteString(v8::Handle<v8::String> source,
|
|
v8::Handle<v8::Value> name,
|
|
bool print_result,
|
|
bool report_exceptions) {
|
|
v8::HandleScope handle_scope;
|
|
v8::TryCatch try_catch;
|
|
v8::Handle<v8::Script> script = v8::Script::Compile(source, name);
|
|
if (script.IsEmpty()) {
|
|
// Print errors that happened during compilation.
|
|
if (report_exceptions)
|
|
ReportException(&try_catch);
|
|
return false;
|
|
} else {
|
|
v8::Handle<v8::Value> result = script->Run();
|
|
if (result.IsEmpty()) {
|
|
// Print errors that happened during execution.
|
|
if (report_exceptions)
|
|
ReportException(&try_catch);
|
|
return false;
|
|
} else {
|
|
if (print_result && !result->IsUndefined()) {
|
|
// If all went well and the result wasn't undefined then print
|
|
// the returned value.
|
|
v8::String::Utf8Value str(result);
|
|
printf("%s\n", *str);
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void ReportException(v8::TryCatch* try_catch) {
|
|
v8::HandleScope handle_scope;
|
|
v8::String::Utf8Value exception(try_catch->Exception());
|
|
v8::Handle<v8::Message> message = try_catch->Message();
|
|
if (message.IsEmpty()) {
|
|
// V8 didn't provide any extra information about this error; just
|
|
// print the exception.
|
|
printf("%s\n", *exception);
|
|
} else {
|
|
// Print (filename):(line number): (message).
|
|
v8::String::Utf8Value filename(message->GetScriptResourceName());
|
|
int linenum = message->GetLineNumber();
|
|
printf("%s:%i: %s\n", *filename, linenum, *exception);
|
|
// Print line of source code.
|
|
v8::String::Utf8Value sourceline(message->GetSourceLine());
|
|
printf("%s\n", *sourceline);
|
|
// Print wavy underline (GetUnderline is deprecated).
|
|
int start = message->GetStartColumn();
|
|
for (int i = 0; i < start; i++) {
|
|
printf(" ");
|
|
}
|
|
int end = message->GetEndColumn();
|
|
for (int i = start; i < end; i++) {
|
|
printf("^");
|
|
}
|
|
printf("\n");
|
|
}
|
|
}
|