diff options
| -rw-r--r-- | quickjs.c | 25 |
1 files changed, 24 insertions, 1 deletions
@@ -10098,6 +10098,29 @@ static int JS_SetGlobalVar(JSContext *ctx, JSAtom prop, JSValue val, return JS_SetPropertyInternal(ctx, ctx->global_obj, prop, val, ctx->global_obj, flags); } +/* return -1, FALSE or TRUE */ +static int JS_DeleteGlobalVar(JSContext *ctx, JSAtom prop) +{ + JSObject *p; + JSShapeProperty *prs; + JSProperty *pr; + int ret; + + /* 9.1.1.4.7 DeleteBinding ( N ) */ + p = JS_VALUE_GET_OBJ(ctx->global_var_obj); + prs = find_own_property(&pr, p, prop); + if (prs) + return FALSE; /* lexical variables cannot be deleted */ + ret = JS_HasProperty(ctx, ctx->global_obj, prop); + if (ret < 0) + return -1; + if (ret) { + return JS_DeleteProperty(ctx, ctx->global_obj, prop, 0); + } else { + return TRUE; + } +} + /* return -1, FALSE or TRUE. return FALSE if not configurable or invalid object. return -1 in case of exception. flags can be 0, JS_PROP_THROW or JS_PROP_THROW_STRICT */ @@ -18490,7 +18513,7 @@ static JSValue JS_CallInternal(JSContext *caller_ctx, JSValueConst func_obj, pc += 4; sf->cur_pc = pc; - ret = JS_DeleteProperty(ctx, ctx->global_obj, atom, 0); + ret = JS_DeleteGlobalVar(ctx, atom); if (unlikely(ret < 0)) goto exception; *sp++ = JS_NewBool(ctx, ret); |