Zoltan Herczeg 4dc2cb3328
Implement proper creation of function arguments, let and const declarations. (#3725)
After the rework it is possible to detect use before init errors for function arguments.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
2020-05-12 14:38:17 +02:00

66 lines
1.2 KiB
JavaScript

// Copyright JS Foundation and other contributors, http://js.foundation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
{
try {
f()
assert(false)
} catch (e) {
assert(e instanceof ReferenceError)
}
let a = 1;
try {
f()
assert(false)
} catch (e) {
assert(e instanceof ReferenceError)
}
let [b] = [2];
try {
f()
assert(false)
} catch (e) {
assert(e instanceof ReferenceError)
}
const {c} = { c:3 };
f();
function f() { assert(a + b + c === 6) }
}
{
let a = 3;
let [b] = [4];
const {c} = { c:5 };
let f = (function () { assert(a + b + c === 12) })
f();
{
function g() { assert(a + b + c === 12) }
g();
}
}
{
class C {}
assert(function () { return C } () === C);
}