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Fix post increase / decrease in the pre-scanner. (#3430)

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Fixes #3397.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg 2019-12-06 13:53:34 +01:00 committed by Dániel Bátyai
parent e70cfed57a
commit 5ceffd209e
3 changed files with 37 additions and 1 deletions
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17
jerry-core/parser/js/js-scanner.c
View File

@ -713,7 +713,21 @@ scanner_scan_post_primary_expression (parser_context_t *context_p, /**< context
case LEXER_INCREASE:
case LEXER_DECREASE:
{
return !(context_p->token.flags & LEXER_WAS_NEWLINE);
scanner_context_p->mode = SCAN_MODE_PRIMARY_EXPRESSION_END;
if (context_p->token.flags & LEXER_WAS_NEWLINE)
{
return false;
}
lexer_next_token (context_p);
type = (lexer_token_type_t) context_p->token.type;
if (type != LEXER_QUESTION_MARK)
{
break;
}
/* FALLTHRU */
}
case LEXER_QUESTION_MARK:
{
@ -2680,6 +2694,7 @@ scanner_scan_all (parser_context_t *context_p, /**< context */
{
break;
}
type = (lexer_token_type_t) context_p->token.type;
/* FALLTHRU */
}
case SCAN_MODE_PRIMARY_EXPRESSION_END:

3
tests/jerry/arithmetic-parse.js
View File

@ -41,3 +41,6 @@ parse ("a =% b");
parse ("c = a+");
parse ("c = a-");
parse("a++\n()")
parse("a--\n.b")

18
tests/jerry/regression-test-issue-3397.js Normal file
View File

@ -0,0 +1,18 @@
// 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 $
$++
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