22afaacd47
Drive-by-fix: Add V8_WARN_UNUSED_RESULT to MaybeHandle::ToHandle Bug: chromium:1057653 Change-Id: I2834806ca498a2fa43a64f5391606cdbfb4af4fa Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2084814 Reviewed-by: Igor Sheludko <ishell@chromium.org> Commit-Queue: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/master@{#66582}
58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
// Copyright 2015 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/execution/isolate.h"
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#include "src/heap/factory.h"
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#include "src/objects/objects-inl.h"
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#include "test/cctest/compiler/function-tester.h"
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namespace v8 {
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namespace internal {
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namespace compiler {
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TEST(ArgumentsMapped) {
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FunctionTester T("(function(a) { return arguments; })");
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Handle<Object> arguments =
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T.Call(T.Val(19), T.Val(23), T.Val(42), T.Val(65)).ToHandleChecked();
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CHECK(arguments->IsJSObject() && !arguments->IsJSArray());
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CHECK(JSObject::cast(*arguments).HasSloppyArgumentsElements());
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Handle<String> l = T.isolate->factory()->length_string();
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Handle<Object> length =
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Object::GetProperty(T.isolate, arguments, l).ToHandleChecked();
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CHECK_EQ(4, length->Number());
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}
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TEST(ArgumentsUnmapped) {
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FunctionTester T("(function(a) { 'use strict'; return arguments; })");
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Handle<Object> arguments =
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T.Call(T.Val(19), T.Val(23), T.Val(42), T.Val(65)).ToHandleChecked();
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CHECK(arguments->IsJSObject() && !arguments->IsJSArray());
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CHECK(!JSObject::cast(*arguments).HasSloppyArgumentsElements());
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Handle<String> l = T.isolate->factory()->length_string();
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Handle<Object> length =
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Object::GetProperty(T.isolate, arguments, l).ToHandleChecked();
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CHECK_EQ(4, length->Number());
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}
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TEST(ArgumentsRest) {
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FunctionTester T("(function(a, ...args) { return args; })");
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Handle<Object> arguments =
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T.Call(T.Val(19), T.Val(23), T.Val(42), T.Val(65)).ToHandleChecked();
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CHECK(arguments->IsJSObject() && arguments->IsJSArray());
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CHECK(!JSObject::cast(*arguments).HasSloppyArgumentsElements());
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Handle<String> l = T.isolate->factory()->length_string();
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Handle<Object> length =
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Object::GetProperty(T.isolate, arguments, l).ToHandleChecked();
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CHECK_EQ(3, length->Number());
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}
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} // namespace compiler
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} // namespace internal
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} // namespace v8
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