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LibJS: Check for exception after executing (do)while test expression

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Otherwise we crash the interpreter when an exception is thrown during
evaluation of the while or do/while test expression - which is easily
caused by a ReferenceError - e.g.:

    while (someUndefinedVariable) {
        // ...
    }
This commit is contained in:
Linus Groh
2020-10-23 00:40:14 +01:00
committed by Andreas Kling
parent a19d8aade4
commit 82ac936a9d
Notes: sideshowbarker 2024-07-19 01:47:14 +09:00 
Author: https://github.com/linusg
Commit: https://github.com/SerenityOS/serenity/commit/82ac936a9d5
Pull-request: https://github.com/SerenityOS/serenity/pull/3822
3 changed files with 23 additions and 3 deletions
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6
Libraries/LibJS/Tests/loops/while-basic.js
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@@ -17,3 +17,9 @@ test("does not loop when initially false", () => {
expect().fail();
}
});
test("exception in test expression", () => {
expect(() => {
while (foo);
}).toThrow(ReferenceError);
});