70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
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// Copyright 2015 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "include/libplatform/libplatform.h"
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#include "include/v8.h"
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using namespace v8;
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class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
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public:
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virtual void* Allocate(size_t length) {
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void* data = AllocateUninitialized(length);
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return data == NULL ? data : memset(data, 0, length);
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}
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virtual void* AllocateUninitialized(size_t length) { return malloc(length); }
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virtual void Free(void* data, size_t) { free(data); }
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};
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int main(int argc, char* argv[]) {
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// Initialize V8.
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V8::InitializeICU();
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Platform* platform = platform::CreateDefaultPlatform();
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V8::InitializePlatform(platform);
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V8::Initialize();
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// Create a new Isolate and make it the current one.
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ArrayBufferAllocator allocator;
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Isolate::CreateParams create_params;
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create_params.array_buffer_allocator = &allocator;
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Isolate* isolate = Isolate::New(create_params);
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{
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Isolate::Scope isolate_scope(isolate);
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// Create a stack-allocated handle scope.
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HandleScope handle_scope(isolate);
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// Create a new context.
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Local<Context> context = Context::New(isolate);
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// Enter the context for compiling and running the hello world script.
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Context::Scope context_scope(context);
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// Create a string containing the JavaScript source code.
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Local<String> source = String::NewFromUtf8(isolate, "'Hello' + ', World!'");
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// Compile the source code.
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Local<Script> script = Script::Compile(source);
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// Run the script to get the result.
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Local<Value> result = script->Run();
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// Convert the result to an UTF8 string and print it.
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String::Utf8Value utf8(result);
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printf("%s\n", *utf8);
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}
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// Dispose the isolate and tear down V8.
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isolate->Dispose();
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V8::Dispose();
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V8::ShutdownPlatform();
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delete platform;
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return 0;
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}
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