mirror of
https://github.com/jerryscript-project/jerryscript.git
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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
69 lines
1.3 KiB
JavaScript
69 lines
1.3 KiB
JavaScript
/* Copyright JS Foundation and other contributors, http://js.foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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var g = -1;
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function f1() {
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/* Function hoisted as var. */
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assert (g === undefined);
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{
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assert (g() === 1);
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{
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eval("assert (g() === 2)");
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function g() { return 2 };
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}
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function g() { return 1 };
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assert (g() === 2);
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}
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assert (g() === 2);
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}
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f1();
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function f2() {
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/* Function hoisted as let. */
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assert (g === -1);
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{
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let g = 1;
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{
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if (true)
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{
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assert (g() === 2);
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if (true)
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{
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eval("assert (g() === 2)");
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}
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function g() { return 2 };
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}
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assert (g === 1);
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}
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assert (g === 1);
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}
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assert (g === -1);
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}
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f2();
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