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Minor. Simplify CodegenUtil.getDelegates

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This commit is contained in:
Denis Zharkov
2016-09-27 10:27:17 +03:00
parent 567b0cc8ea
commit 49fee026fc
1 changed files with 14 additions and 15 deletions
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compiler/backend-common/src/org/jetbrains/kotlin/backend/common/CodegenUtil.kt
+14 -15
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@@ -53,22 +53,16 @@ object CodegenUtil {
.sortedWith(MemberComparator.INSTANCE)
.keysToMapExceptNulls { delegatingMember ->
val actualDelegates = DescriptorUtils.getAllOverriddenDescriptors(delegatingMember)
.mapNotNull { overriddenDescriptor ->
if (overriddenDescriptor.containingDeclaration == toInterface) {
val scope = (delegateExpressionType ?: toInterface.defaultType).memberScope
val name = overriddenDescriptor.name
.filter { it.containingDeclaration == toInterface }
.map { overriddenDescriptor ->
val scope = (delegateExpressionType ?: toInterface.defaultType).memberScope
val name = overriddenDescriptor.name
// this is the actual member of delegateExpressionType that we are delegating to
(scope.getContributedFunctions(name, NoLookupLocation.FROM_BACKEND) +
scope.getContributedVariables(name, NoLookupLocation.FROM_BACKEND))
.firstOrNull {
(listOf(it) + DescriptorUtils.getAllOverriddenDescriptors(it))
.map(CallableMemberDescriptor::getOriginal)
.contains(overriddenDescriptor.original)
}
}
else null
}
// this is the actual member of delegateExpressionType that we are delegating to
(scope.getContributedFunctions(name, NoLookupLocation.FROM_BACKEND) +
scope.getContributedVariables(name, NoLookupLocation.FROM_BACKEND))
.firstOrNull { doesOverride(it, overriddenDescriptor) }
}
assert(actualDelegates.size <= 1) { "Many delegates found for $delegatingMember: $actualDelegates" }
@@ -76,6 +70,11 @@ object CodegenUtil {
}
}
private fun doesOverride(overrideCandidate: CallableMemberDescriptor, overriddenDescriptor: CallableMemberDescriptor) =
(listOf(overrideCandidate) + DescriptorUtils.getAllOverriddenDescriptors(overrideCandidate))
.map(CallableMemberDescriptor::getOriginal)
.contains(overriddenDescriptor.original)
@JvmStatic
fun getDelegatePropertyIfAny(
expression: KtExpression, classDescriptor: ClassDescriptor, bindingContext: BindingContext