diff options
| -rw-r--r-- | lib/quickjs/quickjs.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/quickjs/quickjs.c b/lib/quickjs/quickjs.c index 2dbc4914..c68a8ab3 100644 --- a/lib/quickjs/quickjs.c +++ b/lib/quickjs/quickjs.c @@ -7456,6 +7456,12 @@ static int JS_AddBrand(JSContext *ctx, JSValueConst obj, JSValueConst home_obj) return -1; } p1 = JS_VALUE_GET_OBJ(obj); + prs = find_own_property(&pr, p1, brand_atom); + if (unlikely(prs)) { + JS_FreeAtom(ctx, brand_atom); + JS_ThrowTypeError(ctx, "private method is already present"); + return -1; + } pr = add_property(ctx, p1, brand_atom, JS_PROP_C_W_E); JS_FreeAtom(ctx, brand_atom); if (!pr) |