Created
August 11, 2022 03:14
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For v8 test, modify #include of https://chromium.googlesource.com/v8/v8/+/refs/tags/10.6.140/samples/hello-world.cc
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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 <stdio.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include "libplatform/libplatform.h" | |
#include "v8-context.h" | |
#include "v8-initialization.h" | |
#include "v8-isolate.h" | |
#include "v8-local-handle.h" | |
#include "v8-primitive.h" | |
#include "v8-script.h" | |
int main(int argc, char* argv[]) { | |
// Initialize V8. | |
v8::V8::InitializeICUDefaultLocation(argv[0]); | |
v8::V8::InitializeExternalStartupData(argv[0]); | |
std::unique_ptr<v8::Platform> platform = v8::platform::NewDefaultPlatform(); | |
v8::V8::InitializePlatform(platform.get()); | |
v8::V8::Initialize(); | |
// Create a new Isolate and make it the current one. | |
v8::Isolate::CreateParams create_params; | |
create_params.array_buffer_allocator = | |
v8::ArrayBuffer::Allocator::NewDefaultAllocator(); | |
v8::Isolate* isolate = v8::Isolate::New(create_params); | |
{ | |
v8::Isolate::Scope isolate_scope(isolate); | |
// Create a stack-allocated handle scope. | |
v8::HandleScope handle_scope(isolate); | |
// Create a new context. | |
v8::Local<v8::Context> context = v8::Context::New(isolate); | |
// Enter the context for compiling and running the hello world script. | |
v8::Context::Scope context_scope(context); | |
{ | |
// Create a string containing the JavaScript source code. | |
v8::Local<v8::String> source = | |
v8::String::NewFromUtf8Literal(isolate, "'Hello' + ', World!'"); | |
// Compile the source code. | |
v8::Local<v8::Script> script = | |
v8::Script::Compile(context, source).ToLocalChecked(); | |
// Run the script to get the result. | |
v8::Local<v8::Value> result = script->Run(context).ToLocalChecked(); | |
// Convert the result to an UTF8 string and print it. | |
v8::String::Utf8Value utf8(isolate, result); | |
printf("%s\n", *utf8); | |
} | |
{ | |
// Use the JavaScript API to generate a WebAssembly module. | |
// | |
// |bytes| contains the binary format for the following module: | |
// | |
// (func (export "add") (param i32 i32) (result i32) | |
// get_local 0 | |
// get_local 1 | |
// i32.add) | |
// | |
const char csource[] = R"( | |
let bytes = new Uint8Array([ | |
0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00, 0x01, 0x07, 0x01, | |
0x60, 0x02, 0x7f, 0x7f, 0x01, 0x7f, 0x03, 0x02, 0x01, 0x00, 0x07, | |
0x07, 0x01, 0x03, 0x61, 0x64, 0x64, 0x00, 0x00, 0x0a, 0x09, 0x01, | |
0x07, 0x00, 0x20, 0x00, 0x20, 0x01, 0x6a, 0x0b | |
]); | |
let module = new WebAssembly.Module(bytes); | |
let instance = new WebAssembly.Instance(module); | |
instance.exports.add(3, 4); | |
)"; | |
// Create a string containing the JavaScript source code. | |
v8::Local<v8::String> source = | |
v8::String::NewFromUtf8Literal(isolate, csource); | |
// Compile the source code. | |
v8::Local<v8::Script> script = | |
v8::Script::Compile(context, source).ToLocalChecked(); | |
// Run the script to get the result. | |
v8::Local<v8::Value> result = script->Run(context).ToLocalChecked(); | |
// Convert the result to a uint32 and print it. | |
uint32_t number = result->Uint32Value(context).ToChecked(); | |
printf("3 + 4 = %u\n", number); | |
} | |
} | |
// Dispose the isolate and tear down V8. | |
isolate->Dispose(); | |
v8::V8::Dispose(); | |
v8::V8::DisposePlatform(); | |
delete create_params.array_buffer_allocator; | |
return 0; | |
} |
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