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Fix up comment

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Jason Freeman 2015-04-15 11:48:26 -07:00
parent 628a5baf4a
commit e05a94457e
1 changed files with 4 additions and 1 deletions
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5
src/compiler/checker.ts
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@ -4062,7 +4062,8 @@ module ts {
}
}
// Even if relationship doesn't hold for type arguments, it may hold in a structural comparison
// Even if relationship doesn't hold for unions, type parameters, or generic type references,
// it may hold in a structural comparison.
// Report structural errors only if we haven't reported any errors yet
let reportStructuralErrors = reportErrors && errorInfo === saveErrorInfo;
// identity relation does not use apparent type
@ -4074,6 +4075,8 @@ module ts {
}
}
else if (source.flags & TypeFlags.TypeParameter && sourceOrApparentType.flags & TypeFlags.Union) {
// We clear the errors first because the following check often gives a better error than
// the union comparison above if it is applicable.
errorInfo = saveErrorInfo;
if (result = isRelatedTo(sourceOrApparentType, target, reportErrors)) {
return result;