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Fix quick info for methods whose contextual type is a mapped type property (#33930)

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This commit is contained in:
Andrew Branch
2019-10-17 10:54:01 -07:00
committed by GitHub
parent a95a25b9a7
commit f41b7b59ce
2 changed files with 10 additions and 1 deletions
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2
src/services/symbolDisplay.ts
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@@ -237,7 +237,7 @@ namespace ts.SymbolDisplay {
// get the signature from the declaration and write it
const functionDeclaration = <FunctionLike>location.parent;
// Use function declaration to write the signatures only if the symbol corresponding to this declaration
const locationIsSymbolDeclaration = find(symbol.declarations, declaration =>
const locationIsSymbolDeclaration = symbol.declarations && find(symbol.declarations, declaration =>
declaration === (location.kind === SyntaxKind.ConstructorKeyword ? functionDeclaration.parent : functionDeclaration));
if (locationIsSymbolDeclaration) {

9
tests/cases/fourslash/quickInfoMappedTypeMethods.ts Normal file
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@@ -0,0 +1,9 @@
/// <reference path="fourslash.ts" />
// https://github.com/microsoft/TypeScript/issues/32983
////type M = { [K in 'one']: any };
////const x: M = {
//// /**/one() {}
////}
verify.quickInfoAt("", "(property) one: any");