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Equality for flexible types

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This commit is contained in:
Andrey Breslav
2014-07-01 20:51:53 +04:00
parent a39d2bc24f
commit 549df3c0eb
6 changed files with 19 additions and 5 deletions
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core/descriptors/src/org/jetbrains/jet/lang/types/checker/TypeCheckingProcedure.java
+14
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@@ -69,6 +69,20 @@ public class TypeCheckingProcedure {
}
public boolean equalTypes(@NotNull JetType type1, @NotNull JetType type2) {
if (type1 instanceof FlexibleType) {
FlexibleType flexibleType1 = (FlexibleType) type1;
if (type2 instanceof FlexibleType) {
FlexibleType flexibleType2 = (FlexibleType) type2;
return equalTypes(flexibleType1.getLowerBound(), flexibleType2.getLowerBound())
&& equalTypes(flexibleType1.getUpperBound(), flexibleType2.getUpperBound());
}
return equalTypes(flexibleType1.getLowerBound(), type2) || equalTypes(flexibleType1.getUpperBound(), type2);
}
else if (type2 instanceof FlexibleType) {
FlexibleType flexibleType2 = (FlexibleType) type2;
return equalTypes(type1, flexibleType2.getLowerBound()) || equalTypes(type1, flexibleType2.getUpperBound());
}
if (type1.isNullable() != type2.isNullable()) {
return false;
}