microsoft/TypeScript
1
0
Fork 0
mirror of https://github.com/microsoft/TypeScript.git synced 2026-02-10 15:25:54 -06:00
Code Issues Packages Projects Releases 212 Wiki Activity

Exempt bare 'boolean's from the check.

Browse Source
This commit is contained in:
Daniel 2020-05-26 22:49:10 +00:00 committed by Daniel Rosenwasser
parent 619658bd44
commit ef40ed1ee6
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/compiler/checker.ts
View File

@ -17833,6 +17833,13 @@ namespace ts {
}
function typeCouldHaveTopLevelSingletonTypes(type: Type): boolean {
// Okay, yes, 'boolean' is a union of 'true | false', but that's not useful
// in error reporting scenarios. If you need to use this function but that detail matters,
// feel free to add a flag.
if (type.flags & TypeFlags.Boolean) {
return false;
}
if (type.flags & TypeFlags.UnionOrIntersection) {
return !!forEach((type as IntersectionType).types, typeCouldHaveTopLevelSingletonTypes);
}