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Do not overwrite original pointer when indirectly points to location #59647

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Merged
merged 2 commits into from
Aug 16, 2024
Merged

Do not overwrite original pointer when indirectly points to location #59647

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ac28edd
Do not overwrite original pointer when indirectly points to location
rbuckton Aug 15, 2024
8d27057
Fix formatting
rbuckton Aug 15, 2024
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15 changes: 12 additions & 3 deletions src/compiler/checker.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -6063,10 +6063,19 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
if (!location) {
return range;
}
if (!context.enclosingFile || context.enclosingFile !== getSourceFileOfNode(getOriginalNode(location))) {
return setOriginalNode(range, location); // if `location` is from another file, only set/update original pointer, and not positions, since copying text across files isn't supported by the emitter
// Don't overwrite the original node if `range` has an `original` node that points either directly or indirectly to `location`
let original = range.original;
while (original && original !== location) {
original = original.original;
}
return setTextRangeWorker(setOriginalNode(range, location), location);
if (!original) {
setOriginalNode(range, location);
}
// only set positions if range comes from the same file since copying text across files isn't supported by the emitter
if (context.enclosingFile && context.enclosingFile === getSourceFileOfNode(getOriginalNode(location))) {
return setTextRangeWorker(range, location);
}
return range;
}

/**
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