1a64b02dcf
This implements correct semantics for "extensible" top level lexical scope. The entire lexical scope is represented at runtime by GlobalContextTable, reachable from native context and accumulating global contexts from every script loaded into the context. When the new script starts executing, it does the following validation: - checks the GlobalContextTable and global object (non-configurable own) properties against the set of declarations it introduces and reports potential conflicts. - invalidates the conflicting PropertyCells on global object, so that any code depending on them will miss/deopt causing any contextual lookups to be reexecuted under the new bindings - adds the lexical bindings it introduces to the GlobalContextTable Loads and stores for contextual lookups are modified so that they check the GlobalContextTable before looking up properties on global object, thus implementing the shadowing of global object properties by lexical declarations. R=adamk@chromium.org, rossberg@chromium.org Review URL: https://codereview.chromium.org/705663004 Cr-Commit-Position: refs/heads/master@{#25220} git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25220 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
865 lines
25 KiB
C++
865 lines
25 KiB
C++
// Copyright 2007-2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <stdlib.h>
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#include "src/v8.h"
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#include "src/heap/heap.h"
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#include "test/cctest/cctest.h"
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using namespace v8;
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enum Expectations {
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EXPECT_RESULT,
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EXPECT_EXCEPTION,
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EXPECT_ERROR
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};
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// A DeclarationContext holds a reference to a v8::Context and keeps
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// track of various declaration related counters to make it easier to
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// track if global declarations in the presence of interceptors behave
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// the right way.
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class DeclarationContext {
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public:
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DeclarationContext();
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virtual ~DeclarationContext() {
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if (is_initialized_) {
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Isolate* isolate = CcTest::isolate();
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HandleScope scope(isolate);
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Local<Context> context = Local<Context>::New(isolate, context_);
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context->Exit();
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context_.Reset();
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}
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}
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void Check(const char* source,
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int get, int set, int has,
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Expectations expectations,
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v8::Handle<Value> value = Local<Value>());
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int get_count() const { return get_count_; }
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int set_count() const { return set_count_; }
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int query_count() const { return query_count_; }
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protected:
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virtual v8::Handle<Value> Get(Local<String> key);
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virtual v8::Handle<Value> Set(Local<String> key, Local<Value> value);
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virtual v8::Handle<Integer> Query(Local<String> key);
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void InitializeIfNeeded();
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// Perform optional initialization steps on the context after it has
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// been created. Defaults to none but may be overwritten.
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virtual void PostInitializeContext(Handle<Context> context) {}
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// Get the holder for the interceptor. Default to the instance template
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// but may be overwritten.
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virtual Local<ObjectTemplate> GetHolder(Local<FunctionTemplate> function) {
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return function->InstanceTemplate();
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}
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// The handlers are called as static functions that forward
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// to the instance specific virtual methods.
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static void HandleGet(Local<String> key,
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const v8::PropertyCallbackInfo<v8::Value>& info);
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static void HandleSet(Local<String> key,
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Local<Value> value,
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const v8::PropertyCallbackInfo<v8::Value>& info);
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static void HandleQuery(Local<String> key,
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const v8::PropertyCallbackInfo<v8::Integer>& info);
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v8::Isolate* isolate() const { return CcTest::isolate(); }
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private:
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bool is_initialized_;
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Persistent<Context> context_;
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int get_count_;
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int set_count_;
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int query_count_;
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static DeclarationContext* GetInstance(Local<Value> data);
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};
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DeclarationContext::DeclarationContext()
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: is_initialized_(false), get_count_(0), set_count_(0), query_count_(0) {
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// Do nothing.
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}
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void DeclarationContext::InitializeIfNeeded() {
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if (is_initialized_) return;
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Isolate* isolate = CcTest::isolate();
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HandleScope scope(isolate);
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Local<FunctionTemplate> function = FunctionTemplate::New(isolate);
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Local<Value> data = External::New(CcTest::isolate(), this);
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GetHolder(function)->SetNamedPropertyHandler(&HandleGet,
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&HandleSet,
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&HandleQuery,
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0, 0,
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data);
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Local<Context> context = Context::New(isolate,
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0,
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function->InstanceTemplate(),
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Local<Value>());
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context_.Reset(isolate, context);
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context->Enter();
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is_initialized_ = true;
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PostInitializeContext(context);
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}
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void DeclarationContext::Check(const char* source,
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int get, int set, int query,
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Expectations expectations,
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v8::Handle<Value> value) {
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InitializeIfNeeded();
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// A retry after a GC may pollute the counts, so perform gc now
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// to avoid that.
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CcTest::heap()->CollectGarbage(v8::internal::NEW_SPACE);
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HandleScope scope(CcTest::isolate());
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TryCatch catcher;
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catcher.SetVerbose(true);
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Local<Script> script =
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Script::Compile(String::NewFromUtf8(CcTest::isolate(), source));
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if (expectations == EXPECT_ERROR) {
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CHECK(script.IsEmpty());
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return;
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}
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CHECK(!script.IsEmpty());
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Local<Value> result = script->Run();
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CHECK_EQ(get, get_count());
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CHECK_EQ(set, set_count());
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CHECK_EQ(query, query_count());
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if (expectations == EXPECT_RESULT) {
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CHECK(!catcher.HasCaught());
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if (!value.IsEmpty()) {
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CHECK_EQ(value, result);
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}
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} else {
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CHECK(expectations == EXPECT_EXCEPTION);
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CHECK(catcher.HasCaught());
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if (!value.IsEmpty()) {
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CHECK_EQ(value, catcher.Exception());
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}
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}
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// Clean slate for the next test.
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CcTest::heap()->CollectAllAvailableGarbage();
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}
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void DeclarationContext::HandleGet(
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Local<String> key,
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const v8::PropertyCallbackInfo<v8::Value>& info) {
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DeclarationContext* context = GetInstance(info.Data());
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context->get_count_++;
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info.GetReturnValue().Set(context->Get(key));
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}
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void DeclarationContext::HandleSet(
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Local<String> key,
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Local<Value> value,
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const v8::PropertyCallbackInfo<v8::Value>& info) {
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DeclarationContext* context = GetInstance(info.Data());
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context->set_count_++;
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info.GetReturnValue().Set(context->Set(key, value));
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}
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void DeclarationContext::HandleQuery(
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Local<String> key,
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const v8::PropertyCallbackInfo<v8::Integer>& info) {
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DeclarationContext* context = GetInstance(info.Data());
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context->query_count_++;
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info.GetReturnValue().Set(context->Query(key));
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}
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DeclarationContext* DeclarationContext::GetInstance(Local<Value> data) {
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void* value = Local<External>::Cast(data)->Value();
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return static_cast<DeclarationContext*>(value);
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}
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v8::Handle<Value> DeclarationContext::Get(Local<String> key) {
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return v8::Handle<Value>();
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}
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v8::Handle<Value> DeclarationContext::Set(Local<String> key,
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Local<Value> value) {
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return v8::Handle<Value>();
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}
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v8::Handle<Integer> DeclarationContext::Query(Local<String> key) {
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return v8::Handle<Integer>();
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}
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// Test global declaration of a property the interceptor doesn't know
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// about and doesn't handle.
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TEST(Unknown) {
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HandleScope scope(CcTest::isolate());
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v8::V8::Initialize();
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{ DeclarationContext context;
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context.Check("var x; x",
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1, // access
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0, 0, EXPECT_RESULT, Undefined(CcTest::isolate()));
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}
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{ DeclarationContext context;
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context.Check("var x = 0; x",
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1, // access
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1, // initialization
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0, EXPECT_RESULT, Number::New(CcTest::isolate(), 0));
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}
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{ DeclarationContext context;
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context.Check("function x() { }; x",
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1, // access
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0,
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0,
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EXPECT_RESULT);
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}
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{ DeclarationContext context;
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context.Check("const x; x",
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1, // access
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0, 0, EXPECT_RESULT, Undefined(CcTest::isolate()));
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}
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{ DeclarationContext context;
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context.Check("const x = 0; x",
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1, // access
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0,
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0,
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EXPECT_RESULT, Number::New(CcTest::isolate(), 0));
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}
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}
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class AbsentPropertyContext: public DeclarationContext {
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protected:
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virtual v8::Handle<Integer> Query(Local<String> key) {
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return v8::Handle<Integer>();
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}
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};
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TEST(Absent) {
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v8::Isolate* isolate = CcTest::isolate();
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v8::V8::Initialize();
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HandleScope scope(isolate);
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{ AbsentPropertyContext context;
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context.Check("var x; x",
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1, // access
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0, 0, EXPECT_RESULT, Undefined(isolate));
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}
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{ AbsentPropertyContext context;
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context.Check("var x = 0; x",
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1, // access
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1, // initialization
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0, EXPECT_RESULT, Number::New(isolate, 0));
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}
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{ AbsentPropertyContext context;
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context.Check("function x() { }; x",
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1, // access
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0,
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0,
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EXPECT_RESULT);
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}
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{ AbsentPropertyContext context;
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context.Check("const x; x",
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1, // access
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0, 0, EXPECT_RESULT, Undefined(isolate));
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}
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{ AbsentPropertyContext context;
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context.Check("const x = 0; x",
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1, // access
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0, 0, EXPECT_RESULT, Number::New(isolate, 0));
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}
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{ AbsentPropertyContext context;
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context.Check("if (false) { var x = 0 }; x",
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1, // access
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0, 0, EXPECT_RESULT, Undefined(isolate));
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}
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}
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class AppearingPropertyContext: public DeclarationContext {
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public:
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enum State {
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DECLARE,
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INITIALIZE_IF_ASSIGN,
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UNKNOWN
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};
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AppearingPropertyContext() : state_(DECLARE) { }
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protected:
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virtual v8::Handle<Integer> Query(Local<String> key) {
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switch (state_) {
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case DECLARE:
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// Force declaration by returning that the
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// property is absent.
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state_ = INITIALIZE_IF_ASSIGN;
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return Handle<Integer>();
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case INITIALIZE_IF_ASSIGN:
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// Return that the property is present so we only get the
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// setter called when initializing with a value.
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state_ = UNKNOWN;
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return Integer::New(isolate(), v8::None);
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default:
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CHECK(state_ == UNKNOWN);
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break;
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}
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// Do the lookup in the object.
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return v8::Handle<Integer>();
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}
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private:
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State state_;
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};
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TEST(Appearing) {
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v8::V8::Initialize();
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HandleScope scope(CcTest::isolate());
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{ AppearingPropertyContext context;
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context.Check("var x; x",
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1, // access
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0, 0, EXPECT_RESULT, Undefined(CcTest::isolate()));
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}
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{ AppearingPropertyContext context;
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context.Check("var x = 0; x",
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1, // access
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1, // initialization
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0, EXPECT_RESULT, Number::New(CcTest::isolate(), 0));
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}
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{ AppearingPropertyContext context;
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context.Check("function x() { }; x",
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1, // access
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0,
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0,
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EXPECT_RESULT);
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}
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{ AppearingPropertyContext context;
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context.Check("const x; x",
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1, // access
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0, 0, EXPECT_RESULT, Undefined(CcTest::isolate()));
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}
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{ AppearingPropertyContext context;
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context.Check("const x = 0; x",
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1, // access
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0, 0, EXPECT_RESULT, Number::New(CcTest::isolate(), 0));
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}
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}
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class ExistsInPrototypeContext: public DeclarationContext {
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public:
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ExistsInPrototypeContext() { InitializeIfNeeded(); }
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protected:
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virtual v8::Handle<Integer> Query(Local<String> key) {
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// Let it seem that the property exists in the prototype object.
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return Integer::New(isolate(), v8::None);
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}
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// Use the prototype as the holder for the interceptors.
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virtual Local<ObjectTemplate> GetHolder(Local<FunctionTemplate> function) {
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return function->PrototypeTemplate();
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}
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};
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TEST(ExistsInPrototype) {
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HandleScope scope(CcTest::isolate());
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// Sanity check to make sure that the holder of the interceptor
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// really is the prototype object.
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{ ExistsInPrototypeContext context;
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context.Check("this.x = 87; this.x", 0, 0, 1, EXPECT_RESULT,
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Number::New(CcTest::isolate(), 87));
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}
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{ ExistsInPrototypeContext context;
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context.Check("var x; x",
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0,
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0,
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0,
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EXPECT_RESULT, Undefined(CcTest::isolate()));
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}
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{ ExistsInPrototypeContext context;
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context.Check("var x = 0; x",
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0,
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0,
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0,
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EXPECT_RESULT, Number::New(CcTest::isolate(), 0));
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}
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{ ExistsInPrototypeContext context;
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context.Check("const x; x",
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0,
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0,
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0,
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EXPECT_RESULT, Undefined(CcTest::isolate()));
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}
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{ ExistsInPrototypeContext context;
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context.Check("const x = 0; x",
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0,
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0,
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0,
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EXPECT_RESULT, Number::New(CcTest::isolate(), 0));
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}
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}
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class AbsentInPrototypeContext: public DeclarationContext {
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protected:
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virtual v8::Handle<Integer> Query(Local<String> key) {
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// Let it seem that the property is absent in the prototype object.
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return Handle<Integer>();
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}
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// Use the prototype as the holder for the interceptors.
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virtual Local<ObjectTemplate> GetHolder(Local<FunctionTemplate> function) {
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return function->PrototypeTemplate();
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}
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};
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TEST(AbsentInPrototype) {
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v8::V8::Initialize();
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HandleScope scope(CcTest::isolate());
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{ AbsentInPrototypeContext context;
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context.Check("if (false) { var x = 0; }; x",
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0,
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0,
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0,
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EXPECT_RESULT, Undefined(CcTest::isolate()));
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}
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}
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class ExistsInHiddenPrototypeContext: public DeclarationContext {
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public:
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ExistsInHiddenPrototypeContext() {
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hidden_proto_ = FunctionTemplate::New(CcTest::isolate());
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hidden_proto_->SetHiddenPrototype(true);
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}
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protected:
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virtual v8::Handle<Integer> Query(Local<String> key) {
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// Let it seem that the property exists in the hidden prototype object.
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return Integer::New(isolate(), v8::None);
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}
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// Install the hidden prototype after the global object has been created.
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virtual void PostInitializeContext(Handle<Context> context) {
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Local<Object> global_object = context->Global();
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Local<Object> hidden_proto = hidden_proto_->GetFunction()->NewInstance();
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Local<Object> inner_global =
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Local<Object>::Cast(global_object->GetPrototype());
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inner_global->SetPrototype(hidden_proto);
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}
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// Use the hidden prototype as the holder for the interceptors.
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virtual Local<ObjectTemplate> GetHolder(Local<FunctionTemplate> function) {
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return hidden_proto_->InstanceTemplate();
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}
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private:
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Local<FunctionTemplate> hidden_proto_;
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};
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TEST(ExistsInHiddenPrototype) {
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HandleScope scope(CcTest::isolate());
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{ ExistsInHiddenPrototypeContext context;
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context.Check("var x; x", 0, 0, 0, EXPECT_RESULT,
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Undefined(CcTest::isolate()));
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}
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{ ExistsInHiddenPrototypeContext context;
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context.Check("var x = 0; x", 0, 0, 0, EXPECT_RESULT,
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Number::New(CcTest::isolate(), 0));
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}
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{ ExistsInHiddenPrototypeContext context;
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context.Check("function x() { }; x",
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0,
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0,
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0,
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EXPECT_RESULT);
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}
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// TODO(mstarzinger): The semantics of global const is vague.
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{ ExistsInHiddenPrototypeContext context;
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context.Check("const x; x", 0, 0, 0, EXPECT_RESULT,
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Undefined(CcTest::isolate()));
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}
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// TODO(mstarzinger): The semantics of global const is vague.
|
|
{ ExistsInHiddenPrototypeContext context;
|
|
context.Check("const x = 0; x", 0, 0, 0, EXPECT_RESULT,
|
|
Number::New(CcTest::isolate(), 0));
|
|
}
|
|
}
|
|
|
|
|
|
|
|
class SimpleContext {
|
|
public:
|
|
SimpleContext()
|
|
: handle_scope_(CcTest::isolate()),
|
|
context_(Context::New(CcTest::isolate())) {
|
|
context_->Enter();
|
|
}
|
|
|
|
~SimpleContext() {
|
|
context_->Exit();
|
|
}
|
|
|
|
void Check(const char* source,
|
|
Expectations expectations,
|
|
v8::Handle<Value> value = Local<Value>()) {
|
|
HandleScope scope(context_->GetIsolate());
|
|
TryCatch catcher;
|
|
catcher.SetVerbose(true);
|
|
Local<Script> script =
|
|
Script::Compile(String::NewFromUtf8(context_->GetIsolate(), source));
|
|
if (expectations == EXPECT_ERROR) {
|
|
CHECK(script.IsEmpty());
|
|
return;
|
|
}
|
|
CHECK(!script.IsEmpty());
|
|
Local<Value> result = script->Run();
|
|
if (expectations == EXPECT_RESULT) {
|
|
CHECK(!catcher.HasCaught());
|
|
if (!value.IsEmpty()) {
|
|
CHECK_EQ(value, result);
|
|
}
|
|
} else {
|
|
CHECK(expectations == EXPECT_EXCEPTION);
|
|
CHECK(catcher.HasCaught());
|
|
if (!value.IsEmpty()) {
|
|
CHECK_EQ(value, catcher.Exception());
|
|
}
|
|
}
|
|
}
|
|
|
|
private:
|
|
HandleScope handle_scope_;
|
|
Local<Context> context_;
|
|
};
|
|
|
|
|
|
TEST(CrossScriptReferences) {
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
HandleScope scope(isolate);
|
|
|
|
{ SimpleContext context;
|
|
context.Check("var x = 1; x",
|
|
EXPECT_RESULT, Number::New(isolate, 1));
|
|
context.Check("var x = 2; x",
|
|
EXPECT_RESULT, Number::New(isolate, 2));
|
|
context.Check("const x = 3; x", EXPECT_EXCEPTION);
|
|
context.Check("const x = 4; x", EXPECT_EXCEPTION);
|
|
context.Check("x = 5; x",
|
|
EXPECT_RESULT, Number::New(isolate, 5));
|
|
context.Check("var x = 6; x",
|
|
EXPECT_RESULT, Number::New(isolate, 6));
|
|
context.Check("this.x",
|
|
EXPECT_RESULT, Number::New(isolate, 6));
|
|
context.Check("function x() { return 7 }; x()",
|
|
EXPECT_RESULT, Number::New(isolate, 7));
|
|
}
|
|
|
|
{ SimpleContext context;
|
|
context.Check("const x = 1; x",
|
|
EXPECT_RESULT, Number::New(isolate, 1));
|
|
context.Check("var x = 2; x", // assignment ignored
|
|
EXPECT_RESULT, Number::New(isolate, 1));
|
|
context.Check("const x = 3; x", EXPECT_EXCEPTION);
|
|
context.Check("x = 4; x", // assignment ignored
|
|
EXPECT_RESULT, Number::New(isolate, 1));
|
|
context.Check("var x = 5; x", // assignment ignored
|
|
EXPECT_RESULT, Number::New(isolate, 1));
|
|
context.Check("this.x",
|
|
EXPECT_RESULT, Number::New(isolate, 1));
|
|
context.Check("function x() { return 7 }; x",
|
|
EXPECT_EXCEPTION);
|
|
}
|
|
}
|
|
|
|
|
|
TEST(CrossScriptReferences_Simple) {
|
|
i::FLAG_harmony_scoping = true;
|
|
i::FLAG_use_strict = true;
|
|
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
HandleScope scope(isolate);
|
|
|
|
{
|
|
SimpleContext context;
|
|
context.Check("let x = 1; x", EXPECT_RESULT, Number::New(isolate, 1));
|
|
context.Check("let x = 5; x", EXPECT_EXCEPTION);
|
|
}
|
|
}
|
|
|
|
|
|
TEST(CrossScriptReferences_Simple2) {
|
|
i::FLAG_harmony_scoping = true;
|
|
i::FLAG_use_strict = true;
|
|
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
HandleScope scope(isolate);
|
|
|
|
for (int k = 0; k < 100; k++) {
|
|
SimpleContext context;
|
|
bool cond = (k % 2) == 0;
|
|
if (cond) {
|
|
context.Check("let x = 1; x", EXPECT_RESULT, Number::New(isolate, 1));
|
|
context.Check("let z = 4; z", EXPECT_RESULT, Number::New(isolate, 4));
|
|
} else {
|
|
context.Check("let z = 1; z", EXPECT_RESULT, Number::New(isolate, 1));
|
|
context.Check("let x = 4; x", EXPECT_RESULT, Number::New(isolate, 4));
|
|
}
|
|
context.Check("let y = 2; x", EXPECT_RESULT,
|
|
Number::New(isolate, cond ? 1 : 4));
|
|
}
|
|
}
|
|
|
|
|
|
TEST(CrossScriptReferencesHarmony) {
|
|
i::FLAG_use_strict = true;
|
|
i::FLAG_harmony_scoping = true;
|
|
i::FLAG_harmony_modules = true;
|
|
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
HandleScope scope(isolate);
|
|
|
|
const char* decs[] = {
|
|
"var x = 1; x", "x", "this.x",
|
|
"function x() { return 1 }; x()", "x()", "this.x()",
|
|
"let x = 1; x", "x", "this.x",
|
|
"const x = 1; x", "x", "this.x",
|
|
"module x { export let a = 1 }; x.a", "x.a", "this.x.a",
|
|
NULL
|
|
};
|
|
|
|
for (int i = 0; decs[i] != NULL; i += 3) {
|
|
SimpleContext context;
|
|
context.Check(decs[i], EXPECT_RESULT, Number::New(isolate, 1));
|
|
context.Check(decs[i+1], EXPECT_RESULT, Number::New(isolate, 1));
|
|
// TODO(rossberg): The current ES6 draft spec does not reflect lexical
|
|
// bindings on the global object. However, this will probably change, in
|
|
// which case we reactivate the following test.
|
|
if (i/3 < 2) {
|
|
context.Check(decs[i+2], EXPECT_RESULT, Number::New(isolate, 1));
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
TEST(CrossScriptConflicts) {
|
|
i::FLAG_use_strict = true;
|
|
i::FLAG_harmony_scoping = true;
|
|
i::FLAG_harmony_modules = true;
|
|
|
|
HandleScope scope(CcTest::isolate());
|
|
|
|
const char* firsts[] = {
|
|
"var x = 1; x",
|
|
"function x() { return 1 }; x()",
|
|
"let x = 1; x",
|
|
"const x = 1; x",
|
|
"module x { export let a = 1 }; x.a",
|
|
NULL
|
|
};
|
|
const char* seconds[] = {
|
|
"var x = 2; x",
|
|
"function x() { return 2 }; x()",
|
|
"let x = 2; x",
|
|
"const x = 2; x",
|
|
"module x { export let a = 2 }; x.a",
|
|
NULL
|
|
};
|
|
|
|
for (int i = 0; firsts[i] != NULL; ++i) {
|
|
for (int j = 0; seconds[j] != NULL; ++j) {
|
|
SimpleContext context;
|
|
context.Check(firsts[i], EXPECT_RESULT,
|
|
Number::New(CcTest::isolate(), 1));
|
|
bool success_case = i < 2 && j < 2;
|
|
Local<Value> success_result;
|
|
if (success_case) success_result = Number::New(CcTest::isolate(), 2);
|
|
|
|
context.Check(seconds[j], success_case ? EXPECT_RESULT : EXPECT_EXCEPTION,
|
|
success_result);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
TEST(CrossScriptDynamicLookup) {
|
|
i::FLAG_harmony_scoping = true;
|
|
|
|
HandleScope handle_scope(CcTest::isolate());
|
|
|
|
{
|
|
SimpleContext context;
|
|
Local<String> undefined_string = String::NewFromUtf8(
|
|
CcTest::isolate(), "undefined", String::kInternalizedString);
|
|
Local<String> number_string = String::NewFromUtf8(
|
|
CcTest::isolate(), "number", String::kInternalizedString);
|
|
|
|
context.Check(
|
|
"function f(o) { with(o) { return x; } }"
|
|
"function g(o) { with(o) { x = 15; } }"
|
|
"function h(o) { with(o) { return typeof x; } }",
|
|
EXPECT_RESULT, Undefined(CcTest::isolate()));
|
|
context.Check("h({})", EXPECT_RESULT, undefined_string);
|
|
context.Check(
|
|
"'use strict';"
|
|
"let x = 1;"
|
|
"f({})",
|
|
EXPECT_RESULT, Number::New(CcTest::isolate(), 1));
|
|
context.Check(
|
|
"'use strict';"
|
|
"g({});0",
|
|
EXPECT_RESULT, Number::New(CcTest::isolate(), 0));
|
|
context.Check("f({})", EXPECT_RESULT, Number::New(CcTest::isolate(), 15));
|
|
context.Check("h({})", EXPECT_RESULT, number_string);
|
|
}
|
|
}
|
|
|
|
|
|
TEST(CrossScriptGlobal) {
|
|
i::FLAG_harmony_scoping = true;
|
|
|
|
HandleScope handle_scope(CcTest::isolate());
|
|
{
|
|
SimpleContext context;
|
|
|
|
context.Check(
|
|
"var global = this;"
|
|
"global.x = 255;"
|
|
"x",
|
|
EXPECT_RESULT, Number::New(CcTest::isolate(), 255));
|
|
context.Check(
|
|
"'use strict';"
|
|
"let x = 1;"
|
|
"global.x",
|
|
EXPECT_RESULT, Number::New(CcTest::isolate(), 255));
|
|
context.Check("global.x = 15; x", EXPECT_RESULT,
|
|
Number::New(CcTest::isolate(), 1));
|
|
context.Check("x = 221; global.x", EXPECT_RESULT,
|
|
Number::New(CcTest::isolate(), 15));
|
|
context.Check(
|
|
"z = 15;"
|
|
"function f() { return z; };"
|
|
"for (var k = 0; k < 3; k++) { f(); }"
|
|
"f()",
|
|
EXPECT_RESULT, Number::New(CcTest::isolate(), 15));
|
|
context.Check(
|
|
"'use strict';"
|
|
"let z = 5; f()",
|
|
EXPECT_RESULT, Number::New(CcTest::isolate(), 5));
|
|
context.Check(
|
|
"function f() { konst = 10; return konst; };"
|
|
"f()",
|
|
EXPECT_RESULT, Number::New(CcTest::isolate(), 10));
|
|
context.Check(
|
|
"'use strict';"
|
|
"const konst = 255;"
|
|
"f()",
|
|
EXPECT_EXCEPTION);
|
|
}
|
|
}
|
|
|
|
|
|
TEST(CrossScriptStaticLookupUndeclared) {
|
|
i::FLAG_harmony_scoping = true;
|
|
|
|
HandleScope handle_scope(CcTest::isolate());
|
|
|
|
{
|
|
SimpleContext context;
|
|
Local<String> undefined_string = String::NewFromUtf8(
|
|
CcTest::isolate(), "undefined", String::kInternalizedString);
|
|
Local<String> number_string = String::NewFromUtf8(
|
|
CcTest::isolate(), "number", String::kInternalizedString);
|
|
|
|
context.Check(
|
|
"function f(o) { return x; }"
|
|
"function g(o) { x = 15; }"
|
|
"function h(o) { return typeof x; }",
|
|
EXPECT_RESULT, Undefined(CcTest::isolate()));
|
|
context.Check("h({})", EXPECT_RESULT, undefined_string);
|
|
context.Check(
|
|
"'use strict';"
|
|
"let x = 1;"
|
|
"f({})",
|
|
EXPECT_RESULT, Number::New(CcTest::isolate(), 1));
|
|
context.Check(
|
|
"'use strict';"
|
|
"g({});x",
|
|
EXPECT_RESULT, Number::New(CcTest::isolate(), 15));
|
|
context.Check("h({})", EXPECT_RESULT, number_string);
|
|
context.Check("f({})", EXPECT_RESULT, Number::New(CcTest::isolate(), 15));
|
|
context.Check("h({})", EXPECT_RESULT, number_string);
|
|
}
|
|
}
|