mirror of https://github.com/janet-lang/janet
46 lines
1.7 KiB
C
46 lines
1.7 KiB
C
/*
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* Copyright (c) 2021 Calvin Rose
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* 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 OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef JANET_AMALG
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#include "features.h"
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#include <janet.h>
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#include "gc.h"
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#endif
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/* Create new userdata */
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void *janet_abstract_begin(const JanetAbstractType *atype, size_t size) {
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JanetAbstractHead *header = janet_gcalloc(JANET_MEMORY_NONE,
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sizeof(JanetAbstractHead) + size);
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header->size = size;
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header->type = atype;
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return (void *) & (header->data);
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}
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void *janet_abstract_end(void *x) {
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janet_gc_settype((void *)(janet_abstract_head(x)), JANET_MEMORY_ABSTRACT);
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return x;
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}
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void *janet_abstract(const JanetAbstractType *atype, size_t size) {
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return janet_abstract_end(janet_abstract_begin(atype, size));
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}
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