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- // Copyright 2014 The Chromium 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 "gin/shell_runner.h"
- #include <memory>
- #include "gin/converter.h"
- #include "gin/per_context_data.h"
- #include "gin/public/context_holder.h"
- #include "gin/try_catch.h"
- #include "v8/include/v8-script.h"
- using v8::Context;
- using v8::HandleScope;
- using v8::Isolate;
- using v8::Object;
- using v8::ObjectTemplate;
- using v8::Script;
- namespace gin {
- ShellRunnerDelegate::ShellRunnerDelegate() = default;
- ShellRunnerDelegate::~ShellRunnerDelegate() = default;
- v8::Local<ObjectTemplate> ShellRunnerDelegate::GetGlobalTemplate(
- ShellRunner* runner,
- v8::Isolate* isolate) {
- return v8::Local<ObjectTemplate>();
- }
- void ShellRunnerDelegate::DidCreateContext(ShellRunner* runner) {
- }
- void ShellRunnerDelegate::WillRunScript(ShellRunner* runner) {
- }
- void ShellRunnerDelegate::DidRunScript(ShellRunner* runner) {
- }
- void ShellRunnerDelegate::UnhandledException(ShellRunner* runner,
- TryCatch& try_catch) {
- CHECK(false) << try_catch.GetStackTrace();
- }
- ShellRunner::ShellRunner(ShellRunnerDelegate* delegate, Isolate* isolate)
- : delegate_(delegate) {
- v8::Isolate::Scope isolate_scope(isolate);
- HandleScope handle_scope(isolate);
- v8::Local<v8::Context> context =
- Context::New(isolate, NULL, delegate_->GetGlobalTemplate(this, isolate));
- context_holder_ = std::make_unique<ContextHolder>(isolate);
- context_holder_->SetContext(context);
- PerContextData::From(context)->set_runner(this);
- v8::Context::Scope scope(context);
- delegate_->DidCreateContext(this);
- }
- ShellRunner::~ShellRunner() = default;
- v8::MaybeLocal<v8::Value> ShellRunner::Run(const std::string& source,
- const std::string& resource_name) {
- v8::Isolate* isolate = GetContextHolder()->isolate();
- TryCatch try_catch(isolate);
- v8::ScriptOrigin origin(isolate, StringToV8(isolate, resource_name));
- auto maybe_script = Script::Compile(GetContextHolder()->context(),
- StringToV8(isolate, source), &origin);
- v8::Local<Script> script;
- if (!maybe_script.ToLocal(&script)) {
- delegate_->UnhandledException(this, try_catch);
- return v8::MaybeLocal<v8::Value>();
- }
- return Run(script);
- }
- ContextHolder* ShellRunner::GetContextHolder() {
- return context_holder_.get();
- }
- v8::MaybeLocal<v8::Value> ShellRunner::Run(v8::Local<Script> script) {
- TryCatch try_catch(GetContextHolder()->isolate());
- delegate_->WillRunScript(this);
- auto maybe = script->Run(GetContextHolder()->context());
- delegate_->DidRunScript(this);
- if (maybe.IsEmpty()) {
- delegate_->UnhandledException(this, try_catch);
- }
- return maybe;
- }
- } // namespace gin
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