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Fix inlay hint crash for jsdoc function type syntax (#47684)

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* Fix inlay hint crash for jsdoc function type syntax

Parameters in JSDoc function types do not have names. The type does not
reflect this. This PR fixes the crash; I'll see how much churn it causes
to fix the type as well.

Fixes #47606

* make inlay hints test smaller
This commit is contained in:
Nathan Shively-Sanders
2022-02-01 10:11:39 -08:00
committed by GitHub
parent 7183b14831
commit 1ebdcc6fb8
2 changed files with 17 additions and 0 deletions
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3
src/compiler/checker.ts
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@@ -31508,6 +31508,9 @@ namespace ts {
}
function getParameterIdentifierNameAtPosition(signature: Signature, pos: number): [parameterName: __String, isRestParameter: boolean] | undefined {
if (signature.declaration?.kind === SyntaxKind.JSDocFunctionType) {
return undefined;
}
const paramCount = signature.parameters.length - (signatureHasRestParameter(signature) ? 1 : 0);
if (pos < paramCount) {
const param = signature.parameters[pos];