From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- js/src/tests/non262/reflect-parse/object-rest.js | 41 ++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 js/src/tests/non262/reflect-parse/object-rest.js (limited to 'js/src/tests/non262/reflect-parse/object-rest.js') 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); -- cgit v1.2.3