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5efcc9a6d8
We now expand |any| to DartValue (which exists) as opposed to ScriptValue (which does not). Also, fill in a few missing pieces in tonic that will be used by custom elements. R=eseidel@chromium.org Review URL: https://codereview.chromium.org/942993002
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
// Copyright 2015 The Chromium 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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#ifndef SKY_ENGINE_TONIC_DART_VALUE_H_
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#define SKY_ENGINE_TONIC_DART_VALUE_H_
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#include "base/logging.h"
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#include "dart/runtime/include/dart_api.h"
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#include "sky/engine/tonic/dart_persistent_value.h"
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#include "sky/engine/tonic/dart_state.h"
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#include "sky/engine/wtf/RefPtr.h"
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namespace blink {
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// DartValue is a convience wrapper around DartPersistentValue that lets clients
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// use RefPtr to keep track of the number of references to the underlying Dart
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// object. Be careful when retaining RefPtr<DartValue> in the heap because the
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// VM's garbage collector cannot break cycles that involve the C++ heap, which
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// can lead to memory leaks.
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class DartValue : public RefCounted<DartValue> {
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public:
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static PassRefPtr<DartValue> Create(DartState* dart_state,
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Dart_Handle value) {
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return adoptRef(new DartValue(dart_state, value));
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}
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static PassRefPtr<DartValue> Create() { return adoptRef(new DartValue()); }
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~DartValue();
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Dart_Handle dart_value() const { return dart_value_.value(); }
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const base::WeakPtr<DartState>& dart_state() const {
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return dart_value_.dart_state();
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}
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bool is_empty() const { return !dart_value(); }
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bool is_null() const {
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DCHECK(!is_empty());
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return Dart_IsNull(dart_value());
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}
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bool is_function() const {
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DCHECK(!is_empty());
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return Dart_IsClosure(dart_value());
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}
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bool Equals(DartValue* other) const;
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void Clear();
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private:
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DartValue();
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DartValue(DartState* dart_state, Dart_Handle value);
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DartPersistentValue dart_value_;
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DISALLOW_COPY_AND_ASSIGN(DartValue);
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};
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} // namespace blink
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#endif // SKY_ENGINE_TONIC_DART_VALUE_H_
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