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Fix wrong node being printed when diagnosing the origin of a type

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This commit is contained in:
Sam Vervaeck 2022-09-15 23:05:34 +02:00
parent 9bf81c56db
commit f11ad9028e
1 changed files with 6 additions and 1 deletions
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7
src/checker.ts
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@ -1356,7 +1356,12 @@ export class Checker {
return this.createTypeVar();
}
type = this.instantiate(scheme, node.name);
// FIXME it is not guaranteed that `type` is copied, so the original type might get mutated
// It is not guaranteed that `type` is copied during instantiation,
// so the following check ensures that we really are holding a copy
// that we can mutate.
if (type === scheme.type) {
type = type.shallowClone();
}
type.node = node;
break;
}