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87 lines
3.6 KiB
87 lines
3.6 KiB
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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#ifndef SRC_UTIL_H_
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#define SRC_UTIL_H_
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#include "v8.h"
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#include <stddef.h>
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namespace node {
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#define OFFSET_OF(TypeName, Field) \
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(reinterpret_cast<uintptr_t>(&(reinterpret_cast<TypeName*>(8)->Field)) - 8)
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#define CONTAINER_OF(Pointer, TypeName, Field) \
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reinterpret_cast<TypeName*>( \
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reinterpret_cast<uintptr_t>(Pointer) - OFFSET_OF(TypeName, Field))
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#define FIXED_ONE_BYTE_STRING(isolate, string) \
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(node::OneByteString((isolate), (string), sizeof(string) - 1))
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#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
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void operator=(const TypeName&); \
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TypeName(const TypeName&)
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// If persistent.IsWeak() == false, then do not call persistent.Dispose()
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// while the returned Local<T> is still in scope, it will destroy the
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// reference to the object.
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template <class TypeName>
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inline v8::Local<TypeName> PersistentToLocal(
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v8::Isolate* isolate,
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const v8::Persistent<TypeName>& persistent);
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// Unchecked conversion from a non-weak Persistent<T> to Local<TLocal<T>,
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// use with care!
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//
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// Do not call persistent.Dispose() while the returned Local<T> is still in
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// scope, it will destroy the reference to the object.
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template <class TypeName>
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inline v8::Local<TypeName> StrongPersistentToLocal(
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const v8::Persistent<TypeName>& persistent);
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template <class TypeName>
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inline v8::Local<TypeName> WeakPersistentToLocal(
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v8::Isolate* isolate,
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const v8::Persistent<TypeName>& persistent);
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// Convenience wrapper around v8::String::NewFromOneByte().
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inline v8::Local<v8::String> OneByteString(v8::Isolate* isolate,
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const char* data,
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int length = -1);
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// For the people that compile with -funsigned-char.
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inline v8::Local<v8::String> OneByteString(v8::Isolate* isolate,
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const signed char* data,
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int length = -1);
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inline v8::Local<v8::String> OneByteString(v8::Isolate* isolate,
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const unsigned char* data,
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int length = -1);
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inline void Wrap(v8::Local<v8::Object> object, void* pointer);
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template <typename TypeName>
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inline TypeName* Unwrap(v8::Local<v8::Object> object);
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} // namespace node
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#endif // SRC_UTIL_H_
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