jerryscript/tests/jerry/es2015/directive.js
Zoltan Herczeg 3c0beaf87d Support strict mode detection in the pre-scanner. (#3450)
Furthermode an error is thrown when 'use strict' is used in a function with non-simple arguments
and function arguments are not moved to lexical environment when unmapped arguments are present.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
2019-12-17 10:59:03 +01:00

36 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.
function check_syntax_error (code)
{
try {
eval (code)
assert (false)
} catch (e) {
assert (e instanceof SyntaxError)
}
}
eval("function f(a, b = 4) { }")
check_syntax_error ("function f(a, b = 4) { 'use strict' }")
eval('function f(...a) { }')
check_syntax_error ('function f(...a) { "use strict" }')
eval("({ f([a,b]) { } })")
check_syntax_error ("({ f([a,b]) { 'use strict' } })")
eval("function f(a, b = 4) { 'directive1'\n'directive2'\n }")
check_syntax_error ("function f(a, b = 4) { 'directive1'\n'directive2'\n'use strict' }")