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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;
ScriptOrigin ModuleOrigin(Local<v8::Value> resource_name, Isolate* isolate) {
ScriptOrigin origin(resource_name, Local<v8::Integer>(), Local<v8::Integer>(),
Local<v8::Boolean>(), Local<v8::Integer>(),
Local<v8::Value>(), Local<v8::Boolean>(),
Local<v8::Boolean>(), True(isolate));
return origin;
}
static Local<Module> dep1;
static Local<Module> dep2;
MaybeLocal<Module> ResolveCallback(Local<Context> context,
Local<String> specifier,
Local<Module> referrer) {
Isolate* isolate = CcTest::isolate();
if (specifier->StrictEquals(v8_str("./dep1.js"))) {
return dep1;
} else if (specifier->StrictEquals(v8_str("./dep2.js"))) {
return dep2;
} else {
isolate->ThrowException(v8_str("boom"));
return MaybeLocal<Module>();
}
}
TEST(ModuleInstantiationFailures1) {
Isolate* isolate = CcTest::isolate();
HandleScope scope(isolate);
LocalContext env;
v8::TryCatch try_catch(isolate);
Local<Module> module;
{
Local<String> source_text = v8_str(
"import './foo.js';\n"
"export {} from './bar.js';");
ScriptOrigin origin = ModuleOrigin(v8_str("file.js"), CcTest::isolate());
ScriptCompiler::Source source(source_text, origin);
module = ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
CHECK_EQ(Module::kUninstantiated, module->GetStatus());
CHECK_EQ(2, module->GetModuleRequestsLength());
CHECK(v8_str("./foo.js")->StrictEquals(module->GetModuleRequest(0)));
v8::Location loc = module->GetModuleRequestLocation(0);
CHECK_EQ(0, loc.GetLineNumber());
CHECK_EQ(7, loc.GetColumnNumber());
CHECK(v8_str("./bar.js")->StrictEquals(module->GetModuleRequest(1)));
loc = module->GetModuleRequestLocation(1);
CHECK_EQ(1, loc.GetLineNumber());
CHECK_EQ(15, loc.GetColumnNumber());
}
// Instantiation should fail.
{
v8::TryCatch inner_try_catch(isolate);
CHECK(module->InstantiateModule(env.local(), ResolveCallback).IsNothing());
CHECK(inner_try_catch.HasCaught());
CHECK(inner_try_catch.Exception()->StrictEquals(v8_str("boom")));
CHECK_EQ(Module::kUninstantiated, module->GetStatus());
}
// Start over again...
{
Local<String> source_text = v8_str(
"import './dep1.js';\n"
"export {} from './bar.js';");
ScriptOrigin origin = ModuleOrigin(v8_str("file.js"), CcTest::isolate());
ScriptCompiler::Source source(source_text, origin);
module = ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
}
// dep1.js
{
Local<String> source_text = v8_str("");
ScriptOrigin origin = ModuleOrigin(v8_str("dep1.js"), CcTest::isolate());
ScriptCompiler::Source source(source_text, origin);
dep1 = ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
}
// Instantiation should fail because a sub-module fails to resolve.
{
v8::TryCatch inner_try_catch(isolate);
CHECK(module->InstantiateModule(env.local(), ResolveCallback).IsNothing());
CHECK(inner_try_catch.HasCaught());
CHECK(inner_try_catch.Exception()->StrictEquals(v8_str("boom")));
CHECK_EQ(Module::kUninstantiated, module->GetStatus());
}
CHECK(!try_catch.HasCaught());
}
TEST(ModuleInstantiationFailures2) {
Isolate* isolate = CcTest::isolate();
HandleScope scope(isolate);
LocalContext env;
v8::TryCatch try_catch(isolate);
// root1.js
Local<Module> root;
{
Local<String> source_text =
v8_str("import './dep1.js'; import './dep2.js'");
ScriptOrigin origin = ModuleOrigin(v8_str("root1.js"), CcTest::isolate());
ScriptCompiler::Source source(source_text, origin);
root = ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
}
// dep1.js
{
Local<String> source_text = v8_str("export let x = 42");
ScriptOrigin origin = ModuleOrigin(v8_str("dep1.js"), CcTest::isolate());
ScriptCompiler::Source source(source_text, origin);
dep1 = ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
}
// dep2.js
{
Local<String> source_text = v8_str("import {foo} from './dep3.js'");
ScriptOrigin origin = ModuleOrigin(v8_str("dep2.js"), CcTest::isolate());
ScriptCompiler::Source source(source_text, origin);
dep2 = ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
}
{
v8::TryCatch inner_try_catch(isolate);
CHECK(root->InstantiateModule(env.local(), ResolveCallback).IsNothing());
CHECK(inner_try_catch.HasCaught());
CHECK(inner_try_catch.Exception()->StrictEquals(v8_str("boom")));
CHECK_EQ(Module::kUninstantiated, root->GetStatus());
CHECK_EQ(Module::kUninstantiated, dep1->GetStatus());
CHECK_EQ(Module::kUninstantiated, dep2->GetStatus());
}
// Change dep2.js
{
Local<String> source_text = v8_str("import {foo} from './dep2.js'");
ScriptOrigin origin = ModuleOrigin(v8_str("dep2.js"), CcTest::isolate());
ScriptCompiler::Source source(source_text, origin);
dep2 = ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
}
{
v8::TryCatch inner_try_catch(isolate);
CHECK(root->InstantiateModule(env.local(), ResolveCallback).IsNothing());
CHECK(inner_try_catch.HasCaught());
CHECK(!inner_try_catch.Exception()->StrictEquals(v8_str("boom")));
CHECK_EQ(Module::kUninstantiated, root->GetStatus());
CHECK_EQ(Module::kInstantiated, dep1->GetStatus());
CHECK_EQ(Module::kUninstantiated, dep2->GetStatus());
}
// Change dep2.js again
{
Local<String> source_text = v8_str("import {foo} from './dep3.js'");
ScriptOrigin origin = ModuleOrigin(v8_str("dep2.js"), CcTest::isolate());
ScriptCompiler::Source source(source_text, origin);
dep2 = ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
}
{
v8::TryCatch inner_try_catch(isolate);
CHECK(root->InstantiateModule(env.local(), ResolveCallback).IsNothing());
CHECK(inner_try_catch.HasCaught());
CHECK(inner_try_catch.Exception()->StrictEquals(v8_str("boom")));
CHECK_EQ(Module::kUninstantiated, root->GetStatus());
CHECK_EQ(Module::kInstantiated, dep1->GetStatus());
CHECK_EQ(Module::kUninstantiated, dep2->GetStatus());
}
}
static MaybeLocal<Module> CompileSpecifierAsModuleResolveCallback(
Local<Context> context, Local<String> specifier, Local<Module> referrer) {
ScriptOrigin origin = ModuleOrigin(v8_str("module.js"), CcTest::isolate());
ScriptCompiler::Source source(specifier, origin);
return ScriptCompiler::CompileModule(CcTest::isolate(), &source)
.ToLocalChecked();
}
TEST(ModuleEvaluation) {
Isolate* isolate = CcTest::isolate();
HandleScope scope(isolate);
LocalContext env;
v8::TryCatch try_catch(isolate);
Local<String> source_text = v8_str(
"import 'Object.expando = 5';"
"import 'Object.expando *= 2';");
ScriptOrigin origin = ModuleOrigin(v8_str("file.js"), CcTest::isolate());
ScriptCompiler::Source source(source_text, origin);
Local<Module> module =
ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
CHECK_EQ(Module::kUninstantiated, module->GetStatus());
CHECK(module
->InstantiateModule(env.local(),
CompileSpecifierAsModuleResolveCallback)
.FromJust());
CHECK_EQ(Module::kInstantiated, module->GetStatus());
CHECK(!module->Evaluate(env.local()).IsEmpty());
CHECK_EQ(Module::kEvaluated, module->GetStatus());
ExpectInt32("Object.expando", 10);
CHECK(!try_catch.HasCaught());
}
TEST(ModuleEvaluationError) {
Isolate* isolate = CcTest::isolate();
HandleScope scope(isolate);
LocalContext env;
v8::TryCatch try_catch(isolate);
Local<String> source_text =
v8_str("Object.x = (Object.x || 0) + 1; throw 'boom';");
ScriptOrigin origin = ModuleOrigin(v8_str("file.js"), CcTest::isolate());
ScriptCompiler::Source source(source_text, origin);
Local<Module> module =
ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
CHECK_EQ(Module::kUninstantiated, module->GetStatus());
CHECK(module
->InstantiateModule(env.local(),
CompileSpecifierAsModuleResolveCallback)
.FromJust());
CHECK_EQ(Module::kInstantiated, module->GetStatus());
{
v8::TryCatch inner_try_catch(isolate);
CHECK(module->Evaluate(env.local()).IsEmpty());
CHECK(inner_try_catch.HasCaught());
CHECK(inner_try_catch.Exception()->StrictEquals(v8_str("boom")));
CHECK_EQ(Module::kErrored, module->GetStatus());
Local<Value> exception = module->GetException();
CHECK(exception->StrictEquals(v8_str("boom")));
ExpectInt32("Object.x", 1);
}
{
v8::TryCatch inner_try_catch(isolate);
CHECK(module->Evaluate(env.local()).IsEmpty());
CHECK(inner_try_catch.HasCaught());
CHECK(inner_try_catch.Exception()->StrictEquals(v8_str("boom")));
CHECK_EQ(Module::kErrored, module->GetStatus());
Local<Value> exception = module->GetException();
CHECK(exception->StrictEquals(v8_str("boom")));
ExpectInt32("Object.x", 1);
}
CHECK(!try_catch.HasCaught());
}
TEST(ModuleEvaluationCompletion1) {
Isolate* isolate = CcTest::isolate();
HandleScope scope(isolate);
LocalContext env;
v8::TryCatch try_catch(isolate);
const char* sources[] = {
"",
"var a = 1",
"import '42'",
"export * from '42'",
"export {} from '42'",
"export {}",
"var a = 1; export {a}",
"export function foo() {}",
"export class C extends null {}",
"export let a = 1",
"export default 1",
"export default function foo() {}",
"export default function () {}",
"export default (function () {})",
"export default class C extends null {}",
"export default (class C extends null {})",
"for (var i = 0; i < 5; ++i) {}",
};
for (auto src : sources) {
Local<String> source_text = v8_str(src);
ScriptOrigin origin = ModuleOrigin(v8_str("file.js"), CcTest::isolate());
ScriptCompiler::Source source(source_text, origin);
Local<Module> module =
ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
CHECK_EQ(Module::kUninstantiated, module->GetStatus());
CHECK(module
->InstantiateModule(env.local(),
CompileSpecifierAsModuleResolveCallback)
.FromJust());
CHECK_EQ(Module::kInstantiated, module->GetStatus());
CHECK(module->Evaluate(env.local()).ToLocalChecked()->IsUndefined());
CHECK_EQ(Module::kEvaluated, module->GetStatus());
CHECK(module->Evaluate(env.local()).ToLocalChecked()->IsUndefined());
CHECK_EQ(Module::kEvaluated, module->GetStatus());
}
CHECK(!try_catch.HasCaught());
}
TEST(ModuleEvaluationCompletion2) {
Isolate* isolate = CcTest::isolate();
HandleScope scope(isolate);
LocalContext env;
v8::TryCatch try_catch(isolate);
const char* sources[] = {
"'gaga'; ",
"'gaga'; var a = 1",
"'gaga'; import '42'",
"'gaga'; export * from '42'",
"'gaga'; export {} from '42'",
"'gaga'; export {}",
"'gaga'; var a = 1; export {a}",
"'gaga'; export function foo() {}",
"'gaga'; export class C extends null {}",
"'gaga'; export let a = 1",
"'gaga'; export default 1",
"'gaga'; export default function foo() {}",
"'gaga'; export default function () {}",
"'gaga'; export default (function () {})",
"'gaga'; export default class C extends null {}",
"'gaga'; export default (class C extends null {})",
};
for (auto src : sources) {
Local<String> source_text = v8_str(src);
ScriptOrigin origin = ModuleOrigin(v8_str("file.js"), CcTest::isolate());
ScriptCompiler::Source source(source_text, origin);
Local<Module> module =
ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
CHECK_EQ(Module::kUninstantiated, module->GetStatus());
CHECK(module
->InstantiateModule(env.local(),
CompileSpecifierAsModuleResolveCallback)
.FromJust());
CHECK_EQ(Module::kInstantiated, module->GetStatus());
CHECK(module->Evaluate(env.local())
.ToLocalChecked()
->StrictEquals(v8_str("gaga")));
CHECK_EQ(Module::kEvaluated, module->GetStatus());
CHECK(module->Evaluate(env.local()).ToLocalChecked()->IsUndefined());
CHECK_EQ(Module::kEvaluated, module->GetStatus());
}
CHECK(!try_catch.HasCaught());
}
TEST(ModuleNamespace) {
Isolate* isolate = CcTest::isolate();
HandleScope scope(isolate);
LocalContext env;
v8::TryCatch try_catch(isolate);
Local<v8::Object> ReferenceError =
CompileRun("ReferenceError")->ToObject(env.local()).ToLocalChecked();
Local<String> source_text = v8_str(
"import {a, b} from 'export var a = 1; export let b = 2';"
"export function geta() {return a};"
"export function getb() {return b};"
"export let radio = 3;"
"export var gaga = 4;");
ScriptOrigin origin = ModuleOrigin(v8_str("file.js"), CcTest::isolate());
ScriptCompiler::Source source(source_text, origin);
Local<Module> module =
ScriptCompiler::CompileModule(isolate, &source).ToLocalChecked();
CHECK_EQ(Module::kUninstantiated, module->GetStatus());
CHECK(module
->InstantiateModule(env.local(),
CompileSpecifierAsModuleResolveCallback)
.FromJust());
CHECK_EQ(Module::kInstantiated, module->GetStatus());
Local<Value> ns = module->GetModuleNamespace();
CHECK_EQ(Module::kInstantiated, module->GetStatus());
Local<v8::Object> nsobj = ns->ToObject(env.local()).ToLocalChecked();
// a, b
CHECK(nsobj->Get(env.local(), v8_str("a")).ToLocalChecked()->IsUndefined());
CHECK(nsobj->Get(env.local(), v8_str("b")).ToLocalChecked()->IsUndefined());
// geta
{
auto geta = nsobj->Get(env.local(), v8_str("geta")).ToLocalChecked();
auto a = geta.As<v8::Function>()
->Call(env.local(), geta, 0, nullptr)
.ToLocalChecked();
CHECK(a->IsUndefined());
}
// getb
{
v8::TryCatch inner_try_catch(isolate);
auto getb = nsobj->Get(env.local(), v8_str("getb")).ToLocalChecked();
CHECK(
getb.As<v8::Function>()->Call(env.local(), getb, 0, nullptr).IsEmpty());
CHECK(inner_try_catch.HasCaught());
CHECK(inner_try_catch.Exception()
->InstanceOf(env.local(), ReferenceError)
.FromJust());
}
// radio
{
v8::TryCatch inner_try_catch(isolate);
// https://bugs.chromium.org/p/v8/issues/detail?id=7235
// CHECK(nsobj->Get(env.local(), v8_str("radio")).IsEmpty());
CHECK(nsobj->Get(env.local(), v8_str("radio"))
.ToLocalChecked()
->IsUndefined());
CHECK(inner_try_catch.HasCaught());
CHECK(inner_try_catch.Exception()
->InstanceOf(env.local(), ReferenceError)
.FromJust());
}
// gaga
{
auto gaga = nsobj->Get(env.local(), v8_str("gaga")).ToLocalChecked();
CHECK(gaga->IsUndefined());
}
CHECK(!try_catch.HasCaught());
CHECK_EQ(Module::kInstantiated, module->GetStatus());
module->Evaluate(env.local()).ToLocalChecked();
CHECK_EQ(Module::kEvaluated, module->GetStatus());
// geta
{
auto geta = nsobj->Get(env.local(), v8_str("geta")).ToLocalChecked();
auto a = geta.As<v8::Function>()
->Call(env.local(), geta, 0, nullptr)
.ToLocalChecked();
CHECK_EQ(1, a->Int32Value(env.local()).FromJust());
}
// getb
{
auto getb = nsobj->Get(env.local(), v8_str("getb")).ToLocalChecked();
auto b = getb.As<v8::Function>()
->Call(env.local(), getb, 0, nullptr)
.ToLocalChecked();
CHECK_EQ(2, b->Int32Value(env.local()).FromJust());
}
// radio
{
auto radio = nsobj->Get(env.local(), v8_str("radio")).ToLocalChecked();
CHECK_EQ(3, radio->Int32Value(env.local()).FromJust());
}
// gaga
{
auto gaga = nsobj->Get(env.local(), v8_str("gaga")).ToLocalChecked();
CHECK_EQ(4, gaga->Int32Value(env.local()).FromJust());
}
CHECK(!try_catch.HasCaught());
}
} // anonymous namespace