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60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
#ifndef HEADER_Object
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#define HEADER_Object
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/*
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htop - Object.h
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(C) 2004-2012 Hisham H. Muhammad
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(C) 2020 Red Hat, Inc. All Rights Reserved.
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Released under the GNU GPLv2+, see the COPYING file
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in the source distribution for its full text.
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*/
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#include "config.h" // IWYU pragma: keep
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#include <assert.h>
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#include <stdbool.h>
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#include "RichString.h"
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#include "XUtils.h" // IWYU pragma: keep
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struct Object_;
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typedef struct Object_ Object;
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typedef void(*Object_Display)(const Object*, RichString*);
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typedef int(*Object_Compare)(const void*, const void*);
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typedef void(*Object_Delete)(Object*);
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#define Object_getClass(obj_) ((const Object*)(obj_))->klass
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#define Object_setClass(obj_, class_) (((Object*)(obj_))->klass = (const ObjectClass*) (class_))
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#define Object_delete(obj_) (assert(Object_getClass(obj_)->delete), Object_getClass(obj_)->delete((Object*)(obj_)))
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#define Object_displayFn(obj_) Object_getClass(obj_)->display
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#define Object_display(obj_, str_) (assert(Object_getClass(obj_)->display), Object_getClass(obj_)->display((const Object*)(obj_), str_))
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#define Object_compare(obj_, other_) (assert(Object_getClass(obj_)->compare), Object_getClass(obj_)->compare((const void*)(obj_), other_))
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#define Class(class_) ((const ObjectClass*)(&(class_ ## _class)))
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#define AllocThis(class_) (class_*) xMalloc(sizeof(class_)); Object_setClass(this, Class(class_))
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typedef struct ObjectClass_ {
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const void* const extends;
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const Object_Display display;
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const Object_Delete delete;
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const Object_Compare compare;
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} ObjectClass;
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struct Object_ {
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const ObjectClass* klass;
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};
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typedef union {
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int i;
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void* v;
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} Arg;
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extern const ObjectClass Object_class;
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bool Object_isA(const Object* o, const ObjectClass* klass);
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#endif
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