From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- .../lexical-environment/unscopables-strict.js | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 js/src/tests/non262/lexical-environment/unscopables-strict.js (limited to 'js/src/tests/non262/lexical-environment/unscopables-strict.js') diff --git a/js/src/tests/non262/lexical-environment/unscopables-strict.js b/js/src/tests/non262/lexical-environment/unscopables-strict.js new file mode 100644 index 0000000000..fd0413ed7b --- /dev/null +++ b/js/src/tests/non262/lexical-environment/unscopables-strict.js @@ -0,0 +1,32 @@ +// Strict assignment to the name of a property that's masked by @@unscopables +// throws a ReferenceError. + +let env = {k: 1}; +let f; +with (env) { + f = function () { + "use strict"; + k = 2; + }; +} + +f(); +assertEq(env.k, 2); + +env[Symbol.unscopables] = {k: true}; +assertThrowsInstanceOf(f, ReferenceError); + +// @@unscopables is tested when the LHS of assignment is evaluated, so there is +// no effect on the assignment if it is changed while evaluating the RHS. +let g; +with (env) { + g = function () { + "use strict"; + k = (env[Symbol.unscopables].k = true, 3); + } +} +env[Symbol.unscopables].k = false; +g(); +assertEq(env.k, 3); + +reportCompare(0, 0); -- cgit v1.2.3