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Add JS_SetLength API function #448

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Merged
merged 1 commit into from
Sep 20, 2024
Merged

Add JS_SetLength API function #448

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15 changes: 15 additions & 0 deletions quickjs.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1232,6 +1232,8 @@ static __exception int js_get_length32(JSContext *ctx, uint32_t *pres,
JSValue obj);
static __exception int js_get_length64(JSContext *ctx, int64_t *pres,
JSValue obj);
static __exception int js_set_length64(JSContext *ctx, JSValue obj,
int64_t len);
static void free_arg_list(JSContext *ctx, JSValue *tab, uint32_t len);
static JSValue *build_arg_list(JSContext *ctx, uint32_t *plen,
JSValue array_arg);
Expand Down Expand Up @@ -7000,6 +7002,10 @@ int JS_GetLength(JSContext *ctx, JSValue obj, int64_t *pres) {
return js_get_length64(ctx, pres, obj);
}

int JS_SetLength(JSContext *ctx, JSValue obj, int64_t len) {
return js_set_length64(ctx, obj, len);
}

/* return TRUE, FALSE or (-1) in case of exception */
static int JS_OrdinaryIsInstanceOf(JSContext *ctx, JSValue val,
JSValue obj)
Expand Down Expand Up @@ -36857,6 +36863,15 @@ static __exception int js_get_length64(JSContext *ctx, int64_t *pres,
return JS_ToLengthFree(ctx, pres, len_val);
}

static __exception int js_set_length64(JSContext *ctx, JSValue obj, int64_t len)
{
JSValue len_val;
len_val = JS_NewInt64(ctx, len);
if (JS_IsException(len_val))
return -1;
return JS_SetProperty(ctx, obj, JS_ATOM_length, len_val);
}

static void free_arg_list(JSContext *ctx, JSValue *tab, uint32_t len)
{
uint32_t i;
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1 change: 1 addition & 0 deletions quickjs.h
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Expand Up @@ -702,6 +702,7 @@ JS_EXTERN int JS_DeleteProperty(JSContext *ctx, JSValue obj, JSAtom prop, int fl
JS_EXTERN int JS_SetPrototype(JSContext *ctx, JSValue obj, JSValue proto_val);
JS_EXTERN JSValue JS_GetPrototype(JSContext *ctx, JSValue val);
JS_EXTERN int JS_GetLength(JSContext *ctx, JSValue obj, int64_t *pres);
JS_EXTERN int JS_SetLength(JSContext *ctx, JSValue obj, int64_t len);

#define JS_GPN_STRING_MASK (1 << 0)
#define JS_GPN_SYMBOL_MASK (1 << 1)
Expand Down