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// Copyright 2016 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 "src/flags.h"
#include "test/cctest/cctest.h"
namespace {
using v8::Context;
using v8::HandleScope;
using v8::Isolate;
using v8::Local;
using v8::MaybeLocal;
using v8::Module;
using v8::ScriptCompiler;
using v8::ScriptOrigin;
using v8::String;
using v8::Value;
MaybeLocal<Module> AlwaysEmptyResolveCallback(Local<Context> context,
Local<String> specifier,
Local<Module> referrer,
Local<Value> data) {
return MaybeLocal<Module>();
}
static int g_count = 0;
MaybeLocal<Module> FailOnSecondCallResolveCallback(Local<Context> context,
Local<String> specifier,
Local<Module> referrer,
Local<Value> data) {
if (g_count++ > 0) return MaybeLocal<Module>();
Local<String> source_text = v8_str("");
ScriptOrigin origin(v8_str("module.js"));
ScriptCompiler::Source source(source_text, origin);
return ScriptCompiler::CompileModule(CcTest::isolate(), &source)
.ToLocalChecked();
}
TEST(ModuleInstantiationFailures) {
Isolate* isolate = CcTest::isolate();
HandleScope scope(isolate);
LocalContext env;
Local<String> source_text = v8_str(
"import './foo.js';"
"export {} from './bar.js';");
ScriptOrigin origin(v8_str("file.js"));
ScriptCompiler::Source source(source_text, origin);
Local<Module> module =
ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
CHECK_EQ(2, module->GetModuleRequestsLength());
CHECK(v8_str("./foo.js")->StrictEquals(module->GetModuleRequest(0)));
CHECK(v8_str("./bar.js")->StrictEquals(module->GetModuleRequest(1)));
// Instantiation should fail.
CHECK(!module->Instantiate(env.local(), AlwaysEmptyResolveCallback));
// Start over again...
module = ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
// Instantiation should fail if a sub-module fails to resolve.
g_count = 0;
CHECK(!module->Instantiate(env.local(), FailOnSecondCallResolveCallback));
}
static MaybeLocal<Module> CompileSpecifierAsModuleResolveCallback(
Local<Context> context, Local<String> specifier, Local<Module> referrer,
Local<Value> data) {
ScriptOrigin origin(v8_str("module.js"));
ScriptCompiler::Source source(specifier, origin);
return ScriptCompiler::CompileModule(CcTest::isolate(), &source)
.ToLocalChecked();
}
TEST(ModuleEvaluation) {
Isolate* isolate = CcTest::isolate();
HandleScope scope(isolate);
LocalContext env;
Local<String> source_text = v8_str(
"import 'Object.expando = 5';"
"import 'Object.expando *= 2';");
ScriptOrigin origin(v8_str("file.js"));
ScriptCompiler::Source source(source_text, origin);
Local<Module> module =
ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
CHECK(module->Instantiate(env.local(),
CompileSpecifierAsModuleResolveCallback));
CHECK(!module->Evaluate(env.local()).IsEmpty());
ExpectInt32("Object.expando", 10);
}
TEST(EmbedderData) {
Isolate* isolate = CcTest::isolate();
HandleScope scope(isolate);
LocalContext env;
Local<String> source_text = v8_str("");
ScriptOrigin origin(v8_str("file.js"));
ScriptCompiler::Source source(source_text, origin);
Local<Module> module =
ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
CHECK(module->GetEmbedderData()->IsUndefined());
module->SetEmbedderData(v8_num(42));
CHECK_EQ(42, Local<v8::Int32>::Cast(module->GetEmbedderData())->Value());
}
} // anonymous namespace
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