103 lines
3.4 KiB
C
103 lines
3.4 KiB
C
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/* +--------------------------------------------------------------------------+
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** | _ _ _ |
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** | | \ | | (_) |
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** | | \| | ___ _ __ _ |
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** | | . ` |/ _ \| |/ _` | |
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** | | |\ | (_) | | (_| | |
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** | |_| \_|\___/| |\__,_| |
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** | _/ | |
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** | |__/ |
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** +--------------------------------------------------------------------------+
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** | Copyright (c) 2022 Francesco Cozzuto <francesco.cozzuto@gmail.com> |
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** +--------------------------------------------------------------------------+
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** | This file is part of The Noja Interpreter. |
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** | |
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** | The Noja Interpreter is free software: you can redistribute it and/or |
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** | modify it under the terms of the GNU General Public License as published |
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** | by the Free Software Foundation, either version 3 of the License, or (at |
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** | your option) any later version. |
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** | |
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** | The Noja Interpreter is distributed in the hope that it will be useful, |
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** | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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** | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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** | Public License for more details. |
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** | |
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** | You should have received a copy of the GNU General Public License along |
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** | with The Noja Interpreter. If not, see <http://www.gnu.org/licenses/>. |
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** +--------------------------------------------------------------------------+
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*/
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#include <string.h>
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#include "objects.h"
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#include "../utils/defs.h"
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#include "../common/defs.h"
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static _Bool op_eql(Object *self, Object *other);
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static void print(Object *obj, FILE *fp);
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static int hash(Object *self);
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static Object *copy(Object *self, Heap *heap, Error *err);
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static TypeObject t_none = {
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.base = (Object) { .type = &t_type, .flags = Object_STATIC },
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.name = TYPENAME_NONE,
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.size = sizeof(Object),
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.hash = hash,
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.copy = copy,
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.print = print,
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.op_eql = op_eql,
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};
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static Object the_none_object = {
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.type = &t_none,
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.flags = Object_STATIC,
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};
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TypeObject *Object_GetNoneType()
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{
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return &t_none;
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}
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_Bool Object_IsNone(Object *obj)
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{
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return Object_GetType(obj) == Object_GetNoneType();
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}
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static int hash(Object *self)
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{
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UNUSED(self);
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ASSERT(self == &the_none_object);
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return 0;
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}
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static Object *copy(Object *self, Heap *heap, Error *err)
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{
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UNUSED(heap);
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UNUSED(err);
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return self;
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}
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Object *Object_NewNone(Heap *heap, Error *error)
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{
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UNUSED(heap);
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UNUSED(error);
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return &the_none_object;
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}
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static void print(Object *obj, FILE *fp)
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{
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UNUSED(obj);
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ASSERT(fp != NULL);
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ASSERT(obj != NULL);
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ASSERT(obj->type == &t_none);
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fprintf(fp, "none");
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}
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static _Bool op_eql(Object *self, Object *other)
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{
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UNUSED(self);
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UNUSED(other);
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ASSERT(other->type == &t_none);
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return 1;
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} |