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Optimize codegen for generic SAM types

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Search abstract members in unsubstituted scope to avoid computation
of substituted descriptors for each type (effectively for each SAM call)

 #KT-20055 In progress
This commit is contained in:
Denis Zharkov
2017-09-12 16:46:53 +03:00
parent 97fd72a1e0
commit 28d785854c
5 changed files with 9 additions and 9 deletions
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compiler/frontend.java/src/org/jetbrains/kotlin/load/java/sam/SingleAbstractMethodUtils.java
+3 -3
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@@ -47,9 +47,9 @@ public class SingleAbstractMethodUtils {
}
@NotNull
public static List<CallableMemberDescriptor> getAbstractMembers(@NotNull KotlinType type) {
public static List<CallableMemberDescriptor> getAbstractMembers(@NotNull ClassDescriptor classDescriptor) {
List<CallableMemberDescriptor> abstractMembers = new ArrayList<>();
for (DeclarationDescriptor member : DescriptorUtils.getAllDescriptors(type.getMemberScope())) {
for (DeclarationDescriptor member : DescriptorUtils.getAllDescriptors(classDescriptor.getUnsubstitutedMemberScope())) {
if (member instanceof CallableMemberDescriptor && ((CallableMemberDescriptor) member).getModality() == Modality.ABSTRACT) {
abstractMembers.add((CallableMemberDescriptor) member);
}
@@ -154,7 +154,7 @@ public class SingleAbstractMethodUtils {
if (klass.isDefinitelyNotSamInterface()) return null;
List<CallableMemberDescriptor> abstractMembers = getAbstractMembers(klass.getDefaultType());
List<CallableMemberDescriptor> abstractMembers = getAbstractMembers(klass);
if (abstractMembers.size() == 1) {
CallableMemberDescriptor member = abstractMembers.get(0);
if (member instanceof SimpleFunctionDescriptor) {