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Allow the right-hand side of an 'in' expression to be of non-primitive object type.

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Fixes #14269
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kpreisser
2017-03-05 14:25:59 +01:00
parent b1520345be
commit 39d1c8b844
1 changed files with 1 additions and 1 deletions
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2
src/compiler/checker.ts
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@@ -15546,7 +15546,7 @@ namespace ts {
if (!(isTypeComparableTo(leftType, stringType) || isTypeOfKind(leftType, TypeFlags.NumberLike | TypeFlags.ESSymbol))) {
error(left, Diagnostics.The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol);
}
if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, TypeFlags.Object | TypeFlags.TypeVariable)) {
if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, TypeFlags.Object | TypeFlags.TypeVariable | TypeFlags.NonPrimitive)) {
error(right, Diagnostics.The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter);
}
return booleanType;