diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/expressions/optional-chain-first-expression.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/expressions/optional-chain-first-expression.js | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/js/src/tests/non262/expressions/optional-chain-first-expression.js b/js/src/tests/non262/expressions/optional-chain-first-expression.js new file mode 100644 index 0000000000..89912aec4a --- /dev/null +++ b/js/src/tests/non262/expressions/optional-chain-first-expression.js @@ -0,0 +1,92 @@ +// Verify bytecode emitter accepts all valid optional chain first expressions. + +const expressions = [ + // https://tc39.es/ecma262/#sec-primary-expression + "this", + "ident", + "null", + "true", + "false", + "123", + "123n", + "'str'", + "[]", + "{}", + "function(){}", + "class{}", + "function*(){}", + "async function(){}", + "async function*(){}", + "/a/", + "`str`", + "(a + b)", + + // https://tc39.es/ecma262/#sec-left-hand-side-expressions + "a[b]", + "a.b", + "a``", + "super[a]", + "super.a", + "new.target", + "import.meta", + "new C()", + "new C", + "f()", + "super()", + "a?.b", + "a?.[b]", + "a?.()", + "a?.``", +]; + +function tryParse(s, f = Function) { + try { f(s); } catch {} +} + +function tryRun(s, f = Function) { + try { f(s)(); } catch {} +} + +for (let expr of expressions) { + // Evaluate in an expression context. + tryRun(`void (${expr}?.());`); + tryRun(`void (${expr}?.p());`); + + // Also try parenthesized. + tryRun(`void ((${expr})?.());`); + tryRun(`void ((${expr})?.p());`); +} + +function inClassConstructor(s) { + return `class C { constructor() { ${s} } }`; +} + +for (let expr of ["super[a]", "super.a", "super()"]) { + // Evaluate in an expression context. + tryRun(inClassConstructor(`void (${expr}?.());`)); + tryRun(inClassConstructor(`void (${expr}?.p());`)); + + // Also try parenthesized. + tryRun(inClassConstructor(`void ((${expr})?.());`)); + tryRun(inClassConstructor(`void ((${expr})?.p());`)); +} + +if (typeof parseModule === "function") { + const expressions = [ + "import.meta", + "import('')", + ]; + + for (let expr of expressions) { + // Evaluate in an expression context. + tryParse(`void (${expr}?.());`, parseModule); + tryParse(`void (${expr}?.p());`, parseModule); + + // Also try parenthesized. + tryParse(`void ((${expr})?.());`, parseModule); + tryParse(`void ((${expr})?.p());`, parseModule); + } +} + +if (typeof reportCompare === "function") + reportCompare(true, true); |