Index: Source/core/dom/Iterable.h |
diff --git a/Source/core/dom/Iterable.h b/Source/core/dom/Iterable.h |
deleted file mode 100644 |
index eafe6f377e7e0cfc2ed9fe7754783fc58d5de482..0000000000000000000000000000000000000000 |
--- a/Source/core/dom/Iterable.h |
+++ /dev/null |
@@ -1,201 +0,0 @@ |
-// Copyright 2015 The Chromium Authors. All rights reserved. |
-// Use of this source code is governed by a BSD-style license that can be |
-// found in the LICENSE file. |
- |
-#ifndef Iterable_h |
-#define Iterable_h |
- |
-#include "bindings/core/v8/V8IteratorResultValue.h" |
-#include "bindings/core/v8/V8ScriptRunner.h" |
-#include "core/dom/Iterator.h" |
- |
-namespace blink { |
- |
-// Typically, use one of ValueIterable<> and PairIterable<> (below) instead! |
-template <typename KeyType, typename ValueType> |
-class Iterable { |
-public: |
- Iterator* keysForBinding(ScriptState* scriptState, ExceptionState& exceptionState) |
- { |
- IterationSource* source = this->startIteration(scriptState, exceptionState); |
- if (!source) |
- return nullptr; |
- return new IterableIterator<KeySelector>(source); |
- } |
- |
- Iterator* valuesForBinding(ScriptState* scriptState, ExceptionState& exceptionState) |
- { |
- IterationSource* source = this->startIteration(scriptState, exceptionState); |
- if (!source) |
- return nullptr; |
- return new IterableIterator<ValueSelector>(source); |
- } |
- |
- Iterator* entriesForBinding(ScriptState* scriptState, ExceptionState& exceptionState) |
- { |
- IterationSource* source = this->startIteration(scriptState, exceptionState); |
- if (!source) |
- return nullptr; |
- return new IterableIterator<EntrySelector>(source); |
- } |
- |
- void forEachForBinding(ScriptState* scriptState, const ScriptValue& thisValue, const ScriptValue& callback, const ScriptValue& thisArg, ExceptionState& exceptionState) |
- { |
- IterationSource* source = this->startIteration(scriptState, exceptionState); |
- |
- v8::Isolate* isolate = scriptState->isolate(); |
- v8::TryCatch tryCatch(isolate); |
- |
- v8::Local<v8::Object> creationContext(scriptState->context()->Global()); |
- v8::Local<v8::Function> v8Callback(callback.v8Value().As<v8::Function>()); |
- v8::Local<v8::Value> v8ThisArg(thisArg.v8Value()); |
- v8::Local<v8::Value> args[3]; |
- |
- args[2] = thisValue.v8Value(); |
- |
- while (true) { |
- KeyType key; |
- ValueType value; |
- |
- if (!source->next(scriptState, key, value, exceptionState)) |
- return; |
- |
- ASSERT(!exceptionState.hadException()); |
- |
- args[0] = toV8(value, creationContext, isolate); |
- args[1] = toV8(key, creationContext, isolate); |
- |
- V8ScriptRunner::callFunction(v8Callback, scriptState->executionContext(), v8ThisArg, 3, args, isolate); |
- |
- if (tryCatch.HasCaught()) { |
- exceptionState.rethrowV8Exception(tryCatch.Exception()); |
- return; |
- } |
- } |
- } |
- |
- class IterationSource : public GarbageCollectedFinalized<IterationSource> { |
- public: |
- virtual ~IterationSource() { } |
- |
- // If end of iteration has been reached or an exception thrown: return false. |
- // Otherwise: set |key| and |value| and return true. |
- virtual bool next(ScriptState*, KeyType&, ValueType&, ExceptionState&) = 0; |
- |
- virtual void trace(Visitor*) { } |
- }; |
- |
-private: |
- virtual IterationSource* startIteration(ScriptState*, ExceptionState&) = 0; |
- |
- struct KeySelector { |
- static const KeyType& select(ScriptState*, const KeyType& key, const ValueType& value) |
- { |
- return key; |
- } |
- }; |
- struct ValueSelector { |
- static const ValueType& select(ScriptState*, const KeyType& key, const ValueType& value) |
- { |
- return value; |
- } |
- }; |
- struct EntrySelector { |
- static Vector<ScriptValue, 2> select(ScriptState* scriptState, const KeyType& key, const ValueType& value) |
- { |
- v8::Local<v8::Object> creationContext = scriptState->context()->Global(); |
- v8::Isolate* isolate = scriptState->isolate(); |
- |
- Vector<ScriptValue, 2> entry; |
- entry.append(ScriptValue(scriptState, toV8(key, creationContext, isolate))); |
- entry.append(ScriptValue(scriptState, toV8(value, creationContext, isolate))); |
- return entry; |
- } |
- }; |
- |
- template <typename Selector> |
- class IterableIterator final : public Iterator { |
- public: |
- explicit IterableIterator(IterationSource* source) |
- : m_source(source) |
- { |
- } |
- |
- ScriptValue next(ScriptState* scriptState, ExceptionState& exceptionState) override |
- { |
- KeyType key; |
- ValueType value; |
- |
- if (!m_source->next(scriptState, key, value, exceptionState)) |
- return v8IteratorResultDone(scriptState); |
- |
- return v8IteratorResult(scriptState, Selector::select(scriptState, key, value)); |
- } |
- |
- ScriptValue next(ScriptState* scriptState, ScriptValue, ExceptionState& exceptionState) override |
- { |
- return next(scriptState, exceptionState); |
- } |
- |
- void trace(Visitor* visitor) override |
- { |
- visitor->trace(m_source); |
- Iterator::trace(visitor); |
- } |
- |
- private: |
- Member<IterationSource> m_source; |
- }; |
-}; |
- |
-// Utiltity mixin base-class for classes implementing IDL interfaces with "iterable<T>". |
-template <typename ValueType> |
-class ValueIterable : public Iterable<unsigned, ValueType> { |
-public: |
- Iterator* iterator(ScriptState* scriptState, ExceptionState& exceptionState) |
- { |
- return this->valuesForBinding(scriptState, exceptionState); |
- } |
- |
- class IterationSource : public Iterable<unsigned, ValueType>::IterationSource { |
- public: |
- IterationSource() |
- : m_index(0) |
- { |
- } |
- |
- ~IterationSource() override { } |
- |
- // If end of iteration has been reached or an exception thrown: return false. |
- // Otherwise: set |value| and return true. |
- // Note: |this->m_index| is the index being accessed. |
- virtual bool next(ScriptState*, ValueType&, ExceptionState&) = 0; |
- |
- protected: |
- unsigned m_index; |
- |
- private: |
- bool next(ScriptState* scriptState, unsigned& key, ValueType& value, ExceptionState& exceptionState) final |
- { |
- if (!next(scriptState, value, exceptionState)) |
- return false; |
- key = m_index; |
- ++m_index; |
- return true; |
- } |
- }; |
-}; |
- |
-// Utiltity mixin base-class for classes implementing IDL interfaces with "iterable<T1, T2>". |
-template <typename KeyType, typename ValueType> |
-class PairIterable : public Iterable<KeyType, ValueType> { |
-public: |
- Iterator* iterator(ScriptState* scriptState, ExceptionState& exceptionState) |
- { |
- return this->entriesForBinding(scriptState, exceptionState); |
- } |
-}; |
- |
-} // namespace blink |
- |
-#endif // Iterable_h |