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More precise checks

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This commit is contained in:
Andrey Breslav
2012-05-31 12:43:41 +04:00
parent 8ebd632be9
commit 9e1c218af2
1 changed files with 6 additions and 3 deletions
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compiler/frontend/src/org/jetbrains/jet/lang/resolve/OverridingUtil.java
+6 -3
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@@ -94,10 +94,13 @@ public class OverridingUtil {
@NotNull
public static OverrideCompatibilityInfo isOverridableBy(@NotNull CallableDescriptor superDescriptor, @NotNull CallableDescriptor subDescriptor) {
if (superDescriptor instanceof FunctionDescriptor) {
if (subDescriptor instanceof PropertyDescriptor) return OverrideCompatibilityInfo.memberKindMismatch();
if (!(subDescriptor instanceof FunctionDescriptor)) return OverrideCompatibilityInfo.memberKindMismatch();
}
if (superDescriptor instanceof PropertyDescriptor) {
if (subDescriptor instanceof FunctionDescriptor) return OverrideCompatibilityInfo.memberKindMismatch();
else if (superDescriptor instanceof PropertyDescriptor) {
if (!(subDescriptor instanceof PropertyDescriptor)) return OverrideCompatibilityInfo.memberKindMismatch();
}
else {
throw new IllegalArgumentException("This type of CallableDescriptor cannot be checked for overridability: " + superDescriptor);
}
// TODO: check outside of this method