50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
#pragma once
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// Optional types
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#include <stdbool.h>
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#include <stdint.h>
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#include "datatypes.h"
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#include "integers.h"
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#include "types.h"
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#include "util.h"
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#define OptionalBool_t uint8_t
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#define OptionalArray_t Array_t
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#define OptionalTable_t Table_t
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#define OptionalText_t Text_t
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#define OptionalClosure_t Closure_t
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#define NONE_ARRAY ((Array_t){.length=-1})
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#define NONE_BOOL ((OptionalBool_t)2)
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#define NONE_INT ((OptionalInt_t){.small=0})
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#define NONE_TABLE ((OptionalTable_t){.entries.length=-1})
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#define NONE_CLOSURE ((OptionalClosure_t){.fn=NULL})
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#define NONE_TEXT ((OptionalText_t){.length=-1})
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#define NONE_MOMENT ((OptionalMoment_t){.tv_usec=-1})
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#define NONE_PATH ((Path_t){.root=PATH_NONE})
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PUREFUNC bool is_null(const void *obj, const TypeInfo_t *non_optional_type);
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PUREFUNC uint64_t Optional$hash(const void *obj, const TypeInfo_t *type);
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PUREFUNC int32_t Optional$compare(const void *x, const void *y, const TypeInfo_t *type);
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PUREFUNC bool Optional$equal(const void *x, const void *y, const TypeInfo_t *type);
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Text_t Optional$as_text(const void *obj, bool colorize, const TypeInfo_t *type);
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void Optional$serialize(const void *obj, FILE *out, Table_t *pointers, const TypeInfo_t *type);
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void Optional$deserialize(FILE *in, void *outval, Array_t *pointers, const TypeInfo_t *type);
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#define Optional$metamethods ((metamethods_t){ \
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.hash=Optional$hash, \
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.compare=Optional$compare, \
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.equal=Optional$equal, \
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.as_text=Optional$as_text, \
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.serialize=Optional$serialize, \
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.deserialize=Optional$deserialize, \
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})
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#define Optional$info(_size, _align, t) &((TypeInfo_t){.size=_size, .align=_align, \
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.tag=OptionalInfo, .OptionalInfo.type=t, \
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.metamethods=Optional$metamethods})
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// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0
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