001 /*
002 * Copyright 2010-2015 JetBrains s.r.o.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017 package org.jetbrains.kotlin.load.java.components;
018
019 import com.intellij.openapi.project.Project;
020 import org.jetbrains.annotations.NotNull;
021 import org.jetbrains.annotations.Nullable;
022 import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor;
023 import org.jetbrains.kotlin.descriptors.ClassDescriptor;
024 import org.jetbrains.kotlin.descriptors.TypeParameterDescriptor;
025 import org.jetbrains.kotlin.descriptors.ValueParameterDescriptor;
026 import org.jetbrains.kotlin.load.java.JavaBindingContext;
027 import org.jetbrains.kotlin.load.java.structure.JavaConstructor;
028 import org.jetbrains.kotlin.load.java.structure.JavaField;
029 import org.jetbrains.kotlin.load.java.structure.JavaMember;
030 import org.jetbrains.kotlin.load.java.structure.JavaMethod;
031 import org.jetbrains.kotlin.resolve.BindingTrace;
032 import org.jetbrains.kotlin.resolve.jvm.JavaDescriptorResolverKt;
033 import org.jetbrains.kotlin.resolve.jvm.kotlinSignature.AlternativeFieldSignatureData;
034 import org.jetbrains.kotlin.resolve.jvm.kotlinSignature.AlternativeMethodSignatureData;
035 import org.jetbrains.kotlin.resolve.jvm.kotlinSignature.SignaturesPropagationData;
036 import org.jetbrains.kotlin.types.KotlinType;
037
038 import java.util.Collections;
039 import java.util.List;
040
041 public class TraceBasedExternalSignatureResolver implements ExternalSignatureResolver {
042 @NotNull private final BindingTrace trace;
043 @NotNull private final Project project;
044
045 public TraceBasedExternalSignatureResolver(
046 @NotNull Project project,
047 @NotNull BindingTrace trace
048 ) {
049 this.project = project;
050 this.trace = trace;
051 }
052
053 @Override
054 @NotNull
055 public PropagatedMethodSignature resolvePropagatedSignature(
056 @NotNull JavaMethod method,
057 @NotNull ClassDescriptor owner,
058 @NotNull KotlinType returnType,
059 @Nullable KotlinType receiverType,
060 @NotNull List<ValueParameterDescriptor> valueParameters,
061 @NotNull List<TypeParameterDescriptor> typeParameters
062 ) {
063 SignaturesPropagationData data =
064 new SignaturesPropagationData(owner, returnType, receiverType, valueParameters, typeParameters, method);
065 return new PropagatedMethodSignature(data.getModifiedReturnType(), data.getModifiedReceiverType(),
066 data.getModifiedValueParameters(), data.getModifiedTypeParameters(), data.getSignatureErrors(),
067 data.getModifiedHasStableParameterNames(), data.getSuperFunctions());
068 }
069
070 @Override
071 @NotNull
072 public AlternativeMethodSignature resolveAlternativeMethodSignature(
073 @NotNull JavaMember methodOrConstructor,
074 boolean hasSuperMethods,
075 @Nullable KotlinType returnType,
076 @Nullable KotlinType receiverType,
077 @NotNull List<ValueParameterDescriptor> valueParameters,
078 @NotNull List<TypeParameterDescriptor> typeParameters,
079 boolean hasStableParameterNames
080 ) {
081 assert methodOrConstructor instanceof JavaMethod || methodOrConstructor instanceof JavaConstructor :
082 "Not a method or a constructor: " + methodOrConstructor.getName();
083
084 AlternativeMethodSignatureData data = new AlternativeMethodSignatureData(
085 methodOrConstructor, receiverType, project, valueParameters, returnType, typeParameters, hasSuperMethods
086 );
087
088 if (data.isAnnotated() && !data.hasErrors()) {
089 if (JavaDescriptorResolverKt.getPLATFORM_TYPES()) {
090 return new AlternativeMethodSignature(returnType, receiverType, valueParameters,
091 typeParameters, Collections.<String>emptyList(), hasStableParameterNames);
092 }
093 return new AlternativeMethodSignature(data.getReturnType(), receiverType, data.getValueParameters(), data.getTypeParameters(),
094 Collections.<String>emptyList(), true);
095 }
096
097 List<String> error = data.hasErrors() ? Collections.singletonList(data.getError()) : Collections.<String>emptyList();
098 return new AlternativeMethodSignature(returnType, receiverType, valueParameters, typeParameters, error, hasStableParameterNames);
099 }
100
101 @Override
102 @NotNull
103 public AlternativeFieldSignature resolveAlternativeFieldSignature(
104 @NotNull JavaField field,
105 @NotNull KotlinType returnType,
106 boolean isVar
107 ) {
108 AlternativeFieldSignatureData data = new AlternativeFieldSignatureData(field, returnType, project, isVar);
109
110 if (data.isAnnotated() && !data.hasErrors()) {
111 if (JavaDescriptorResolverKt.getPLATFORM_TYPES()) {
112 return new AlternativeFieldSignature(returnType, null);
113 }
114 return new AlternativeFieldSignature(data.getReturnType(), null);
115 }
116
117 String error = data.hasErrors() ? data.getError() : null;
118 return new AlternativeFieldSignature(returnType, error);
119 }
120
121 @Override
122 public void reportSignatureErrors(@NotNull CallableMemberDescriptor descriptor, @NotNull List<String> signatureErrors) {
123 trace.record(JavaBindingContext.LOAD_FROM_JAVA_SIGNATURE_ERRORS, descriptor.getOriginal(), signatureErrors);
124 }
125 }