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LibJS: Stop tracking whether execution context is strict mode or not

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This was only used for basic testing, and forced us to plumb this flag
flag in a bunch of places.
This commit is contained in:
Andreas Kling 2025-10-28 21:16:35 +01:00 • committed by Andreas Kling
parent fb05063dde
commit fdb85a330e
Notes: github-actions[bot] 2025-10-29 20:22:21 +00:00
19 changed files with 4 additions and 320 deletions
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61
Libraries/LibJS/Tests/functions/function-strict-mode.js
View file

@ -1,64 +1,3 @@
test("non strict-mode by default", () => {
expect(isStrictMode()).toBeFalse();
});
test("use strict with double quotes", () => {
"use strict";
expect(isStrictMode()).toBeTrue();
});
// prettier-ignore
test("use strict with single quotes", () => {
'use strict';
expect(isStrictMode()).toBeTrue();
});
// prettier-ignore
test("use strict with backticks does not yield strict mode", () => {
`use strict`;
expect(isStrictMode()).toBeFalse();
});
// prettier-ignore
test("use strict with single quotes after statement does not yield strict mode code", () => {
;'use strict';
expect(isStrictMode()).toBeFalse();
});
// prettier-ignore
test("use strict with double quotes after statement does not yield strict mode code", () => {
;"use strict";
expect(isStrictMode()).toBeFalse();
});
test("use strict interrupted by a line continuation does not yield strict mode code", () => {
"use \
strict";
expect(isStrictMode()).toBeFalse();
});
test("strict mode propagates down the scope chain", () => {
"use strict";
expect(isStrictMode()).toBeTrue();
(function () {
expect(isStrictMode()).toBeTrue();
})();
});
test("strict mode does not propagate up the scope chain", () => {
expect(isStrictMode()).toBeFalse();
(function () {
"use strict";
expect(isStrictMode()).toBeTrue();
})();
expect(isStrictMode()).toBeFalse();
});
test('only the string "use strict" yields strict mode code', () => {
"use stric";
expect(isStrictMode()).toBeFalse();
});
test("strict mode does not apply global object to |this|", () => {
"use strict";
let functionThis;