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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/reflect-parse/object-rest.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/reflect-parse/object-rest.js | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/tests/non262/reflect-parse/object-rest.js b/js/src/tests/non262/reflect-parse/object-rest.js new file mode 100644 index 0000000000..1c35034aa1 --- /dev/null +++ b/js/src/tests/non262/reflect-parse/object-rest.js @@ -0,0 +1,41 @@ +// |reftest| skip-if(!xulRuntime.shell) + +function property(key, value = key, shorthand = key === value) { + return { key, value, shorthand }; +} + +function assertDestrAssign(src, pattern) { + assertExpr(`(${src} = 0)`, aExpr("=", pattern, lit(0))); +} + +function assertDestrBinding(src, pattern) { + assertDecl(`var ${src} = 0`, varDecl([{id: pattern, init: lit(0)}])); +} + +function test() { + // Target expression must be a simple assignment target in object assignment patterns. + assertDestrAssign("{...x}", objPatt([spread(ident("x"))])); + assertDestrAssign("{...(x)}", objPatt([spread(ident("x"))])); + assertDestrAssign("{...obj.p}", objPatt([spread(dotExpr(ident("obj"), ident("p")))])); + assertDestrAssign("{...(obj.p)}", objPatt([spread(dotExpr(ident("obj"), ident("p")))])); + + // Object binding patterns only allow binding identifiers. + assertDestrBinding("{...x}", objPatt([spread(ident("x"))])); + + // The rest-property can be preceded by other properties. + for (var assertDestr of [assertDestrAssign, assertDestrBinding]) { + assertDestr("{a, ...x}", objPatt([property(ident("a")), spread(ident("x"))])); + assertDestr("{a: b, ...x}", objPatt([property(ident("a"), ident("b")), spread(ident("x"))])); + assertDestr("{[a]: b, ...x}", objPatt([property(comp(ident("a")), ident("b")), spread(ident("x"))])); + } + + // Tests when __proto__ is used in the object pattern. + for (var assertDestr of [assertDestrAssign, assertDestrBinding]) { + assertDestr("{...__proto__}", objPatt([spread(ident("__proto__"))])); + assertDestr("{__proto__, ...x}", objPatt([property(ident("__proto__")), spread(ident("x"))])); + } + assertDestrAssign("{__proto__: a, ...x}", objPatt([property(lit("__proto__"), ident("a")), spread(ident("x"))])); + assertDestrBinding("{__proto__: a, ...x}", objPatt([property(ident("__proto__"), ident("a")), spread(ident("x"))])); +} + +runtest(test); |