mirror of
https://github.com/jerryscript-project/jerryscript.git
synced 2025-12-15 16:29:21 +00:00
97 lines
2.3 KiB
JavaScript
97 lines
2.3 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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function CheckSyntaxError (str)
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{
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try {
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eval (str);
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assert (false);
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} catch (e) {
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assert (e instanceof SyntaxError);
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}
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/* force the pre-scanner */
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try {
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eval ('switch (1) { default: ' + str + '}');
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assert (false);
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} catch (e) {
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assert (e instanceof SyntaxError);
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}
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}
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CheckSyntaxError ('function x (a, b, ...c, d) {}');
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CheckSyntaxError ('function x (... c = 5) {}');
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CheckSyntaxError ('function x (...) {}');
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CheckSyntaxError ('function x (a, a, ...a) {}');
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CheckSyntaxError ('"use strict" function x (...arguments) {}');
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CheckSyntaxError ('var o = { set e (...args) { } }');
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rest_params = ['hello', true, 7, {}, [], function () {}];
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function f (x, y, ...a) {
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for (var i = 0; i < a.length; i++) {
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assert (a[i] == rest_params[i]);
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}
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return (x + y) * a.length;
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}
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assert (f (1, 2, rest_params[0], rest_params[1], rest_params[2]) === 9);
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assert (f.length === 2);
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function g (...a) {
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return a.reduce (function (accumulator, currentValue) { return accumulator + currentValue });
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}
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assert (g (1, 2, 3, 4) === 10);
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function h (...arguments) {
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return arguments.length;
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}
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assert (h (1, 2, 3, 4) === 4);
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function f2 (a = 1, b = 1, c = 1, ...d) {
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assert (JSON.stringify (d) === '[]');
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return a + b + c;
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}
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assert (f2 () === 3);
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assert (f2 (2) === 4);
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assert (f2 (2, 3) === 6);
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assert (f2 (2, 3, 4) === 9);
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function g2 (a = 5, b = a + 1, ...c) {
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return a + b + c.length;
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}
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assert (g2 () === 11);
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assert (g2 (1) === 3);
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assert (g2 (1, 2) === 3);
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assert (g2 (1, 2, 3) === 4);
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function args(a, ...b)
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{
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assert(a === 1);
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assert(arguments[0] === 1);
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a = 5;
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assert(a === 5);
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assert(arguments[0] === 1);
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assert(arguments[1] === 2);
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assert(b[0] === 2)
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}
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args(1, 2);
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