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Add method to GetClassID #275

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Merged
merged 2 commits into from
Feb 20, 2024
Merged

Add method to GetClassID #275

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273f5c5
Add method to GetClassID
rockwotj Feb 19, 2024
3a54f95
introduce constant for invalid class ID
rockwotj Feb 20, 2024
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9 changes: 9 additions & 0 deletions quickjs.c
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Original file line number Diff line number Diff line change
Expand Up @@ -3344,6 +3344,15 @@ JSClassID JS_NewClassID(JSRuntime *rt, JSClassID *pclass_id)
return class_id;
}

JSClassID JS_GetClassID(JSValue v)
{
JSObject *p;
if (JS_VALUE_GET_TAG(v) != JS_TAG_OBJECT)
return JS_INVALID_CLASS_ID;
p = JS_VALUE_GET_OBJ(v);
return p->class_id;
}

BOOL JS_IsRegisteredClass(JSRuntime *rt, JSClassID class_id)
{
return (class_id < rt->class_count &&
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3 changes: 3 additions & 0 deletions quickjs.h
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Expand Up @@ -455,7 +455,10 @@ typedef struct JSClassDef {
JSClassExoticMethods *exotic;
} JSClassDef;

#define JS_INVALID_CLASS_ID 0
JS_EXTERN JSClassID JS_NewClassID(JSRuntime *rt, JSClassID *pclass_id);
/* Returns the class ID if `v` is an object, otherwise returns JS_INVALID_CLASS_ID. */
JS_EXTERN JSClassID JS_GetClassID(JSValue v);
JS_EXTERN int JS_NewClass(JSRuntime *rt, JSClassID class_id, const JSClassDef *class_def);
JS_EXTERN int JS_IsRegisteredClass(JSRuntime *rt, JSClassID class_id);

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