microsoft/TypeScript
1
0
Fork 0
mirror of https://github.com/microsoft/TypeScript.git synced 2026-02-05 16:38:05 -06:00
Code Issues Packages Projects Releases 212 Wiki Activity

Remove readonly from index signatures of a spread

Browse Source
This commit is contained in:
Nathan Shively-Sanders 2017-11-06 07:48:09 -08:00
parent 8d5b0529b2
commit db9ed00a0f
1 changed files with 14 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
src/compiler/checker.ts
View File

@ -7993,11 +7993,16 @@ namespace ts {
}
}
const spread = createAnonymousType(undefined, members, emptyArray, emptyArray, stringIndexInfo, numberIndexInfo);
const spread = createAnonymousType(
symbol,
members,
emptyArray,
emptyArray,
getNonReadonlyIndexSignature(stringIndexInfo),
getNonReadonlyIndexSignature(numberIndexInfo));
spread.flags |= propagatedFlags;
spread.flags |= TypeFlags.FreshLiteral | TypeFlags.ContainsObjectLiteral;
(spread as ObjectType).objectFlags |= (ObjectFlags.ObjectLiteral | ObjectFlags.ContainsSpread);
spread.symbol = symbol;
return spread;
}
@ -8013,6 +8018,13 @@ namespace ts {
return result;
}
function getNonReadonlyIndexSignature(index: IndexInfo) {
if (index && index.isReadonly) {
return createIndexInfo(index.type, /*isReadonly*/ false, index.declaration);
}
return index;
}
function isClassMethod(prop: Symbol) {
return prop.flags & SymbolFlags.Method && find(prop.declarations, decl => isClassLike(decl.parent));
}