sgjesse@google.com
ff3c5e88f1
R=asiva@google.com BUG= TEST= Review URL: https://chromiumcodereview.appspot.com//9348019 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4071 260f80e4-7a28-3924-810f-c04153c831b5
84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef VM_DART_API_MESSAGE_H_
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#define VM_DART_API_MESSAGE_H_
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#include "vm/dart_api_state.h"
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#include "vm/snapshot.h"
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namespace dart {
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// Use this C structure for reading internal objects in the serialized
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// data. These are objects that we need to process in order to
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// generate the Dart_CObject graph but that we don't want to expose in
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// that graph.
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// TODO(sjesse): Remove this when message serialization format is
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// updated.
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struct Dart_CObject_Internal : public Dart_CObject {
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enum Type {
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kTypeArguments = Dart_CObject::kNumberOfTypes,
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kDynamicType,
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};
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};
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// Reads a message snapshot into a C structure.
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class ApiMessageReader : public BaseReader {
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public:
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ApiMessageReader(const uint8_t* buffer, intptr_t length, ReAlloc alloc);
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~ApiMessageReader() { }
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Dart_CObject* ReadMessage();
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private:
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// Allocates a Dart_CObject object.
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Dart_CObject* AllocateDartCObject();
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// Allocates a Dart_CObject object with the specified type.
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Dart_CObject* AllocateDartCObject(Dart_CObject::Type type);
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// Allocates a Dart_CObject object for the null object.
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Dart_CObject* AllocateDartCObjectNull();
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// Allocates a Dart_CObject object for a boolean object.
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Dart_CObject* AllocateDartCObjectBool(bool value);
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// Allocates a Dart_CObject object for for a 32-bit integer.
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Dart_CObject* AllocateDartCObjectInt32(int32_t value);
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// Allocates a Dart_CObject object for a double.
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Dart_CObject* AllocateDartCObjectDouble(double value);
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// Allocates a Dart_CObject object for string data.
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Dart_CObject* AllocateDartCObjectString(intptr_t length);
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// Allocates a C Dart_CObject object for byte data.
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Dart_CObject* AllocateDartCObjectByteArray(intptr_t length);
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// Allocates a C array of Dart_CObject objects.
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Dart_CObject* AllocateDartCObjectArray(intptr_t length);
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void Init();
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intptr_t LookupInternalClass(intptr_t class_header);
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Dart_CObject* ReadInlinedObject(intptr_t object_id);
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Dart_CObject* ReadObjectImpl(intptr_t header);
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Dart_CObject* ReadIndexedObject(intptr_t object_id);
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Dart_CObject* ReadObject();
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// Add object to backward references.
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void AddBackwardReference(intptr_t id, Dart_CObject* obj);
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Dart_CObject_Internal* AsInternal(Dart_CObject* object) {
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ASSERT(object->type >= Dart_CObject::kNumberOfTypes);
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return reinterpret_cast<Dart_CObject_Internal*>(object);
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}
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// Allocation of the structures for the decoded message happens
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// either in the supplied zone or using the supplied allocation
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// function.
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ReAlloc alloc_;
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ApiGrowableArray<Dart_CObject*> backward_references_;
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Dart_CObject type_arguments_marker;
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Dart_CObject dynamic_type_marker;
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};
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} // namespace dart
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#endif // VM_DART_API_MESSAGE_H_
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