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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/destructuring/rest-parameter-syntax.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/destructuring/rest-parameter-syntax.js | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/js/src/tests/non262/destructuring/rest-parameter-syntax.js b/js/src/tests/non262/destructuring/rest-parameter-syntax.js new file mode 100644 index 0000000000..a145d1a2df --- /dev/null +++ b/js/src/tests/non262/destructuring/rest-parameter-syntax.js @@ -0,0 +1,87 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + + +const bindingPatterns = [ + "[]", + "[a]", + "[a, b]", + "[a, ...b]", + "[...a]", + "[...[]]", + + "{}", + "{p: a}", + "{p: a = 0}", + "{p: {}}", + "{p: a, q: b}", + "{a}", + "{a, b}", + "{a = 0}", +]; + +const functions = [ + p => `function f(${p}) {}`, + p => `function* g(${p}) {}`, + p => `({m(${p}) {}});`, + p => `(class {m(${p}) {}});`, + p => `(${p}) => {};`, +]; + +for (let pattern of bindingPatterns) { + for (let fn of functions) { + // No leading parameters. + eval(fn(`...${pattern}`)); + + // Leading normal parameters. + eval(fn(`x, ...${pattern}`)); + eval(fn(`x, y, ...${pattern}`)); + + // Leading parameters with defaults. + eval(fn(`x = 0, ...${pattern}`)); + eval(fn(`x = 0, y = 0, ...${pattern}`)); + + // Leading array destructuring parameters. + eval(fn(`[], ...${pattern}`)); + eval(fn(`[x], ...${pattern}`)); + eval(fn(`[x = 0], ...${pattern}`)); + eval(fn(`[...x], ...${pattern}`)); + + // Leading object destructuring parameters. + eval(fn(`{}, ...${pattern}`)); + eval(fn(`{p: x}, ...${pattern}`)); + eval(fn(`{x}, ...${pattern}`)); + eval(fn(`{x = 0}, ...${pattern}`)); + + // Trailing parameters after rest parameter. + assertThrowsInstanceOf(() => eval(fn(`...${pattern},`)), SyntaxError); + assertThrowsInstanceOf(() => eval(fn(`...${pattern}, x`)), SyntaxError); + assertThrowsInstanceOf(() => eval(fn(`...${pattern}, x = 0`)), SyntaxError); + assertThrowsInstanceOf(() => eval(fn(`...${pattern}, ...x`)), SyntaxError); + assertThrowsInstanceOf(() => eval(fn(`...${pattern}, []`)), SyntaxError); + assertThrowsInstanceOf(() => eval(fn(`...${pattern}, {}`)), SyntaxError); + + // Rest parameter with defaults. + assertThrowsInstanceOf(() => eval(fn(`...${pattern} = 0`)), SyntaxError); + } +} + +for (let fn of functions) { + // Missing name, incomplete patterns. + assertThrowsInstanceOf(() => eval(fn(`...`)), SyntaxError); + assertThrowsInstanceOf(() => eval(fn(`...[`)), SyntaxError); + assertThrowsInstanceOf(() => eval(fn(`...{`)), SyntaxError); + + // Invalid binding name. + assertThrowsInstanceOf(() => eval(fn(`...[0]`)), SyntaxError); + assertThrowsInstanceOf(() => eval(fn(`...[p.q]`)), SyntaxError); +} + +// Rest parameters aren't valid in getter/setter methods. +assertThrowsInstanceOf(() => eval(`({get p(...[]) {}})`), SyntaxError); +assertThrowsInstanceOf(() => eval(`({set p(...[]) {}})`), SyntaxError); + + +if (typeof reportCompare === "function") + reportCompare(0, 0); |