92 lines
3.6 KiB
C
92 lines
3.6 KiB
C
#ifndef EV_HEADERS_TYPES_H
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#define EV_HEADERS_TYPES_H
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#include "ev_macros.h"
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#include "ev_internal.h"
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#include "ev_hash.h"
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typedef void(*ev_copy_fn)(void *dst, void *src);
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typedef void(*ev_free_fn)(void *self);
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typedef u64(*ev_hash_fn)(void *self, u64 seed);
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typedef bool(*ev_equal_fn)(void *self, void *other);
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typedef struct {
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EV_DEBUG(const char *name;)
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u32 size;
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u32 alignment;
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ev_copy_fn copy_fn;
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ev_free_fn free_fn;
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ev_hash_fn hash_fn;
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ev_equal_fn equal_fn;
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void *default_val;
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void *invalid_val;
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} EvTypeData;
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#define COPY_FUNCTION(T,name) EV_CAT(EV_CAT(EV_CAT(EV_COPY_FUNCTION_,T),_),name)
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#define FREE_FUNCTION(T,name) EV_CAT(EV_CAT(EV_CAT(EV_FREE_FUNCTION_,T),_),name)
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#define HASH_FUNCTION(T,name) EV_CAT(EV_CAT(EV_CAT(EV_HASH_FUNCTION_,T),_),name)
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#define EQUAL_FUNCTION(T,name) EV_CAT(EV_CAT(EV_CAT(EV_EQUAL_FUNCTION_,T),_),name)
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#define DEFINE_COPY_FUNCTION(T,name) void COPY_FUNCTION(T,name)(T *dst, T *src)
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#define DEFINE_DEFAULT_COPY_FUNCTION(T) \
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DEFINE_COPY_FUNCTION(T,DEFAULT) { *dst = *src; }
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#define DEFINE_FREE_FUNCTION(T,name) void FREE_FUNCTION(T,name)(T *self)
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#define DEFINE_DEFAULT_FREE_FUNCTION(T) \
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DEFINE_FREE_FUNCTION(T,DEFAULT) { (void)self; }
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#define DEFINE_HASH_FUNCTION(T,name) void HASH_FUNCTION(T,name)(T *self, u64 seed)
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#define DEFINE_DEFAULT_HASH_FUNCTION(T) \
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DEFINE_HASH_FUNCTION(T,DEFAULT) { ev_hash_murmur3(self, sizeof(T), seed); }
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#define DEFINE_EQUAL_FUNCTION(T,name) bool EQUAL_FUNCTION(T,name)(T *self, T *other)
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// NOTE: This shouldn't be used for non-arithmetic types.
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#define DEFINE_DEFAULT_EQUAL_FUNCTION(T) \
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DEFINE_EQUAL_FUNCTION(T,DEFAULT) { return memcmp(self, other, sizeof(T)); }
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#define DECLARE_COPY_FUNCTION(T,name) DEFINE_COPY_FUNCTION(T,name);
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#define DECLARE_FREE_FUNCTION(T,name) DEFINE_FREE_FUNCTION(T,name);
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#define DECLARE_HASH_FUNCTION(T,name) DEFINE_HASH_FUNCTION(T,name);
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#define DECLARE_EQUAL_FUNCTION(T,name) DEFINE_EQUAL_FUNCTION(T,name);
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#define TypeData(T) EV_CAT(EV_TYPEDATA_,T)
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#define TYPEDATA_GEN(T, ...) \
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EV_UNUSED static const EvTypeData TypeData(T) = { \
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EV_DEBUG(.name = EV_STRINGIZE(T),) \
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.size = sizeof(T), \
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.alignment = EV_ALIGNOF(T), \
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.default_val = (void*)&(T){0}, \
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.invalid_val = (void*)&(T){0}, \
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EV_VA_OPT(__VA_ARGS__)(EV_FOREACH_UDATA(__EV_STRUCT_METHOD_DEF, T, __VA_ARGS__)) \
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}
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#define __EV_STRUCT_METHOD_DEF(T, ...) EV_CAT(__EV_,EV_CAT(EV_HEAD __VA_ARGS__,_FN))(T, EV_TAIL __VA_ARGS__)
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#define COPY(...) (COPY , __VA_ARGS__)
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#define FREE(...) (FREE , __VA_ARGS__)
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#define HASH(...) (HASH , __VA_ARGS__)
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#define EQUAL(...) (EQUAL , __VA_ARGS__)
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#define DEFAULT(...) (DEFAULT, __VA_ARGS__)
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#define INVALID(...) (INVALID, __VA_ARGS__)
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#define __EV_COPY_FN(T,name) .copy_fn = (ev_copy_fn) COPY_FUNCTION(T,name),
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#define __EV_FREE_FN(T,name) .free_fn = (ev_free_fn) FREE_FUNCTION(T,name),
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#define __EV_HASH_FN(T,name) .hash_fn = (ev_hash_fn) HASH_FUNCTION(T,name),
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#define __EV_EQUAL_FN(T,name) .equal_fn = (ev_equal_fn)EQUAL_FUNCTION(T,name),
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#define __EV_DEFAULT_FN(T, ...) .default_val = (void*)&(T){ __VA_ARGS__ },
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#define __EV_INVALID_FN(T, ...) .invalid_val = (void*)&(T){ __VA_ARGS__ },
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#define METHOD_CHECK(...) __VA_ARGS__ EV_DEBUG(?__VA_ARGS__:assert(!EV_STR(__VA_ARGS__)"not defined"))
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#define EV_COPY(T) METHOD_CHECK(TypeData(T).copy_fn)
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#define EV_FREE(T) METHOD_CHECK(TypeData(T).free_fn)
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#define EV_HASH(T) METHOD_CHECK(TypeData(T).hash_fn)
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#define EV_EQUAL(T) METHOD_CHECK(TypeData(T).equal_fn)
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#define EV_DEFAULT(T) *(T*)TypeData(T).default_val
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#define EV_INVALID(T) *(T*)TypeData(T).invalid_val
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#endif // EV_HEADERS_TYPES_H
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