mirror of
https://github.com/jerryscript-project/jerryscript.git
synced 2025-12-15 16:29:21 +00:00
3d797b8836
This patch implements the core part of let/const statements. Redeclarations are correctly detected and separate contexts are correctly created for these statements. Register optimizations are also emplyed whenever possible. Lots of features are still missing: - checking the var statements in eval - const are treated as lets - single statement checks are missing - export declarations are exported as vars, let/const export is not supported JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
80 lines
1.7 KiB
JavaScript
80 lines
1.7 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 {
|
|
let a = 1;
|
|
eval ("assert(a === 1)");
|
|
} catch (e) {
|
|
assert (false);
|
|
}
|
|
|
|
assert (typeof a === "undefined");
|
|
|
|
try {
|
|
let a = 2;
|
|
eval ("assert(a === 2)");
|
|
|
|
assert (typeof b === "undefined");
|
|
throw 3;
|
|
} catch (e) {
|
|
let b = e;
|
|
eval ("assert(b === 3)");
|
|
|
|
assert (typeof a === "undefined");
|
|
}
|
|
|
|
assert (typeof a === "undefined");
|
|
assert (typeof b === "undefined");
|
|
|
|
try {
|
|
let a = 4;
|
|
eval ("assert(a === 4)");
|
|
|
|
assert (typeof b === "undefined");
|
|
} finally {
|
|
let b = 5;
|
|
eval ("assert(b === 5)");
|
|
|
|
assert (typeof a === "undefined");
|
|
}
|
|
|
|
assert (typeof a === "undefined");
|
|
assert (typeof b === "undefined");
|
|
|
|
try {
|
|
let a = 6;
|
|
eval ("assert(a === 6)");
|
|
|
|
assert (typeof b === "undefined");
|
|
assert (typeof c === "undefined");
|
|
throw 7;
|
|
} catch (e) {
|
|
let b = e;
|
|
eval ("assert(b === 7)");
|
|
|
|
assert (typeof a === "undefined");
|
|
assert (typeof c === "undefined");
|
|
} finally {
|
|
let c = 8;
|
|
eval ("assert(c === 8)");
|
|
|
|
assert (typeof a === "undefined");
|
|
assert (typeof b === "undefined");
|
|
}
|
|
|
|
assert (typeof a === "undefined");
|
|
assert (typeof b === "undefined");
|
|
assert (typeof c === "undefined");
|