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Re-enable weak type check for intersection props

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Previously, intersections disabled the weak type check for their
constituents, and all properties (recursively) of their constituents.

Also add test for this case.
This commit is contained in:
Nathan Shively-Sanders
2017-05-26 13:39:53 -07:00
parent 548f92ad34
commit f9a05a1f9d
4 changed files with 58 additions and 1 deletions
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3
src/compiler/checker.ts
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@@ -9352,7 +9352,10 @@ namespace ts {
}
return Ternary.False;
}
const saveDisableWeakTypeErrors = disableWeakTypeErrors;
disableWeakTypeErrors = false;
const related = isRelatedTo(getTypeOfSymbol(sourceProp), getTypeOfSymbol(targetProp), reportErrors);
disableWeakTypeErrors = saveDisableWeakTypeErrors;
if (!related) {
if (reportErrors) {
reportError(Diagnostics.Types_of_property_0_are_incompatible, symbolToString(targetProp));