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Date.prototype.setYear should invalidate cached tza (#4955)

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This patch fixes #4939 and fixes #4940.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik robert.fancsik@h-lab.eu
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Robert Fancsik 2022-01-10 17:35:49 +01:00 committed by GitHub
parent 6efe14d1bd
commit 0aa182c378
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2 changed files with 20 additions and 0 deletions
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3
jerry-core/ecma/builtin-objects/ecma-builtin-date-prototype.c
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@ -472,6 +472,9 @@ ecma_builtin_date_prototype_dispatch_set (uint16_t builtin_routine_id, /**< buil
if (ecma_number_is_nan (converted_number[0]))
{
*date_value_p = converted_number[0];
#if JERRY_ESNEXT
date_object_p->header.u.cls.u1.date_flags &= (uint8_t) ~ECMA_DATE_TZA_SET;
#endif /* JERRY_ESNEXT */
return ecma_make_number_value (converted_number[0]);
}

17
tests/jerry/es.next/regression-test-issue-4939-4940.js Normal file
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@ -0,0 +1,17 @@
// 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.
var date = new Date(1970, 0);
date.setYear(-0);
assert(date.getFullYear() === 1900)