microsoft/TypeScript
1
0
Fork 0
mirror of https://github.com/microsoft/TypeScript.git synced 2026-05-15 12:51:30 -05:00
Code Issues Packages Projects Releases 212 Wiki Activity

Merge pull request #20814 from Microsoft/fixUnionSignatures

Browse Source 
Fix union signatures
This commit is contained in:
Anders Hejlsberg
2017-12-20 09:38:53 -08:00
committed by GitHub
parent a92a594ebe 6f42ecdcd3
commit 2143a3f439
5 changed files with 105 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/compiler/checker.ts
View File

@@ -5936,7 +5936,7 @@ namespace ts {
if (unionSignatures.length > 1) {
let thisParameter = signature.thisParameter;
if (forEach(unionSignatures, sig => sig.thisParameter)) {
const thisType = getUnionType(map(unionSignatures, sig => getTypeOfSymbol(sig.thisParameter) || anyType), UnionReduction.Subtype);
const thisType = getUnionType(map(unionSignatures, sig => sig.thisParameter ? getTypeOfSymbol(sig.thisParameter) : anyType), UnionReduction.Subtype);
thisParameter = createSymbolWithType(signature.thisParameter, thisType);
}
s = cloneSignature(signature);