bsimmers
7219dec255
Most of this is pretty boring and mechanical. I added VectorProp and VectorElem flags to help deal with the increasing number of vector-related opcodes.
86 linhas
2.6 KiB
C++
86 linhas
2.6 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010- Facebook, Inc. (http://www.facebook.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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*/
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#ifndef __INSIDE_HPHP_COMPLEX_TYPES_H__
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#error Directly including 'ref_data.h' is prohibited. \
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Include 'complex_types.h' instead.
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#endif
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#ifndef __HPHP_REF_DATA_H
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#define __HPHP_REF_DATA_H
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namespace HPHP {
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/**
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* We heap allocate a RefData when we make a reference to something.
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* A Variant or TypedValue can be KindOfRef and point to a RefData,
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* but the value held here must not be KindOfRef.
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*/
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class RefData {
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public:
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enum NullInit {
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nullinit,
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};
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RefData() {}
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RefData(NullInit) {
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_count = 1;
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m_tv.m_type = KindOfNull;
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}
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RefData(DataType t, int64_t datum) { init(t, datum); }
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~RefData();
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// Don't extend Countable but use these methods to directly
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// update _count, declared below.
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IMPLEMENT_COUNTABLE_METHODS_NO_STATIC
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// Memory allocator methods
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DECLARE_SMART_ALLOCATION(RefData);
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void dump() const;
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const TypedValue* tv() const { return &m_tv; }
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TypedValue* tv() { return &m_tv; }
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const Variant* var() const { return (const Variant*)&m_tv; }
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Variant* var() { return (Variant*)&m_tv; }
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private:
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// initialize this value by laundering uninitNull -> Null
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void init(DataType t, int64_t datum) {
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_count = 1;
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if (!IS_NULL_TYPE(t)) {
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m_tv.m_type = t;
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m_tv.m_data.num = datum;
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} else {
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m_tv.m_type = KindOfNull;
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}
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}
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private:
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union {
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// overlap TypedValue with an explicit struct to expose the _count
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// field to the macro-expanded refcount methods above.
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struct { void* ptr; mutable int32_t _count; int32_t type; };
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TypedValue m_tv;
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};
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};
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ALWAYS_INLINE inline void decRefRef(RefData* ref) {
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if (ref->decRefCount() == 0) ref->release();
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}
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} // namespace HPHP
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#endif //__HPHP_REF_DATA_H
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