hausner@google.com
09b97fefd4
Review URL: https://chromiumcodereview.appspot.com//9696048 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@5438 260f80e4-7a28-3924-810f-c04153c831b5
84 lines
3.6 KiB
C++
84 lines
3.6 KiB
C++
// Copyright (c) 2011, 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_NATIVE_ENTRY_H_
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#define VM_NATIVE_ENTRY_H_
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#include "vm/allocation.h"
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#include "vm/assembler.h"
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#include "vm/exceptions.h"
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#include "vm/native_arguments.h"
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#include "vm/verifier.h"
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#include "include/dart_api.h"
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namespace dart {
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DECLARE_FLAG(bool, trace_natives);
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// Forward declarations.
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class Class;
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class String;
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typedef void (*NativeFunction)(NativeArguments* arguments);
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#define NATIVE_ENTRY_FUNCTION(name) DN_##name
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// Helper macros for declaring and defining native entries.
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#define REGISTER_NATIVE_ENTRY(name, count) \
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{ ""#name, NATIVE_ENTRY_FUNCTION(name), count },
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#define DEFINE_NATIVE_ENTRY(name, argument_count) \
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static void DN_Helper##name(Isolate* isolate, NativeArguments* arguments); \
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void NATIVE_ENTRY_FUNCTION(name)(Dart_NativeArguments args) { \
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CHECK_STACK_ALIGNMENT; \
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VERIFY_ON_TRANSITION; \
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NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args); \
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ASSERT(arguments->Count() == argument_count); \
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if (FLAG_trace_natives) OS::Print("Calling native: %s\n", ""#name); \
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{ \
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Zone zone(arguments->isolate()); \
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HANDLESCOPE(arguments->isolate()); \
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DN_Helper##name(arguments->isolate(), arguments); \
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} \
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VERIFY_ON_TRANSITION; \
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} \
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static void DN_Helper##name(Isolate* isolate, NativeArguments* arguments)
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#define DECLARE_NATIVE_ENTRY(name, argument_count) \
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extern void NATIVE_ENTRY_FUNCTION(name)(Dart_NativeArguments arguments);
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// Natives should throw an exception if an illegal argument is passed.
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// type name = value.
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#define GET_NATIVE_ARGUMENT(type, name, value) \
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type& name = type::Handle(); \
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{ \
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const Instance& __instance__ = Instance::CheckedHandle(value); \
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if (!__instance__.Is##type()) { \
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GrowableArray<const Object*> __args__; \
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__args__.Add(&__instance__); \
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Exceptions::ThrowByType(Exceptions::kIllegalArgument, __args__); \
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} \
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name ^= __instance__.raw(); \
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}
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// Helper class for resolving and handling native functions.
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class NativeEntry : public AllStatic {
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public:
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// Resolve specified dart native function to the actual native entrypoint.
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static NativeFunction ResolveNative(const Class& cls,
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const String& function_name,
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int number_of_arguments);
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};
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} // namespace dart
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#endif // VM_NATIVE_ENTRY_H_
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