56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
// RTTI support internals for -*- C++ -*-
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// Copyright (C) 1994, 1995, 1996, 1998 Free Software Foundation
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#include "typeinfo"
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// Class declarations shared between the typeinfo implementation files.
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// type_info for a class with no base classes (or an enum).
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struct __user_type_info : public std::type_info {
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__user_type_info (const char *n) : type_info (n) {}
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// If our type can be converted to the desired type,
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// return the pointer, adjusted accordingly; else return 0.
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virtual void* dcast (const type_info &, int, void *,
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const type_info * = 0, void * = 0) const;
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};
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// type_info for a class with one public, nonvirtual base class.
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class __si_type_info : public __user_type_info {
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const __user_type_info &base;
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public:
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__si_type_info (const char *n, const __user_type_info &b)
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: __user_type_info (n), base (b) { }
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virtual void *dcast (const type_info &, int, void *,
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const type_info * = 0, void * = 0) const;
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};
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// type_info for a general class.
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typedef unsigned int USItype __attribute__ ((mode (SI)));
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struct __class_type_info : public __user_type_info {
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enum access { PUBLIC = 1, PROTECTED = 2, PRIVATE = 3 };
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struct base_info {
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const __user_type_info *base;
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USItype offset: 29;
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bool is_virtual: 1;
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enum access access: 2;
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};
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const base_info *base_list;
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size_t n_bases;
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__class_type_info (const char *name, const base_info *bl, size_t bn)
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: __user_type_info (name), base_list (bl), n_bases (bn) {}
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// This is a little complex.
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virtual void* dcast (const type_info &, int, void *,
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const type_info * = 0, void * = 0) const;
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};
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