001 /*
002 * Copyright 2010-2013 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.jet.lang.resolve.java.resolver;
018
019 import org.jetbrains.annotations.NotNull;
020 import org.jetbrains.annotations.Nullable;
021 import org.jetbrains.jet.lang.descriptors.CallableMemberDescriptor;
022 import org.jetbrains.jet.lang.descriptors.ClassDescriptor;
023 import org.jetbrains.jet.lang.descriptors.TypeParameterDescriptor;
024 import org.jetbrains.jet.lang.descriptors.ValueParameterDescriptor;
025 import org.jetbrains.jet.lang.resolve.BindingTrace;
026 import org.jetbrains.jet.lang.resolve.java.JavaBindingContext;
027 import org.jetbrains.jet.lang.resolve.java.kotlinSignature.AlternativeFieldSignatureData;
028 import org.jetbrains.jet.lang.resolve.java.kotlinSignature.AlternativeMethodSignatureData;
029 import org.jetbrains.jet.lang.resolve.java.kotlinSignature.SignaturesPropagationData;
030 import org.jetbrains.jet.lang.resolve.java.structure.JavaField;
031 import org.jetbrains.jet.lang.resolve.java.structure.JavaMethod;
032 import org.jetbrains.jet.lang.resolve.java.structure.impl.JavaFieldImpl;
033 import org.jetbrains.jet.lang.resolve.java.structure.impl.JavaMethodImpl;
034 import org.jetbrains.jet.lang.types.JetType;
035
036 import javax.inject.Inject;
037 import java.util.Collections;
038 import java.util.List;
039
040 public class TraceBasedExternalSignatureResolver implements ExternalSignatureResolver {
041 private BindingTrace trace;
042 private ExternalAnnotationResolver externalAnnotationResolver;
043
044 @Inject
045 public void setTrace(BindingTrace trace) {
046 this.trace = trace;
047 }
048
049 @Inject
050 public void setExternalAnnotationResolver(ExternalAnnotationResolver externalAnnotationResolver) {
051 this.externalAnnotationResolver = externalAnnotationResolver;
052 }
053
054 @Override
055 @NotNull
056 public PropagatedMethodSignature resolvePropagatedSignature(
057 @NotNull JavaMethod method,
058 @NotNull ClassDescriptor owner,
059 @NotNull JetType returnType,
060 @Nullable JetType receiverType,
061 @NotNull List<ValueParameterDescriptor> valueParameters,
062 @NotNull List<TypeParameterDescriptor> typeParameters
063 ) {
064 SignaturesPropagationData data =
065 new SignaturesPropagationData(owner, returnType, receiverType, valueParameters, typeParameters, (JavaMethodImpl) method,
066 trace);
067 return new PropagatedMethodSignature(data.getModifiedReturnType(), data.getModifiedReceiverType(),
068 data.getModifiedValueParameters(), data.getModifiedTypeParameters(), data.getSignatureErrors(),
069 data.getSuperFunctions());
070 }
071
072 @Override
073 @NotNull
074 public AlternativeMethodSignature resolveAlternativeMethodSignature(
075 @NotNull JavaMethod method,
076 boolean hasSuperMethods,
077 @Nullable JetType returnType,
078 @Nullable JetType receiverType,
079 @NotNull List<ValueParameterDescriptor> valueParameters,
080 @NotNull List<TypeParameterDescriptor> typeParameters
081 ) {
082 AlternativeMethodSignatureData data =
083 new AlternativeMethodSignatureData(externalAnnotationResolver, (JavaMethodImpl) method, receiverType, valueParameters, returnType,
084 typeParameters, hasSuperMethods);
085
086 if (data.isAnnotated() && !data.hasErrors()) {
087 return new AlternativeMethodSignature(data.getReturnType(), receiverType, data.getValueParameters(), data.getTypeParameters(),
088 Collections.<String>emptyList());
089 }
090
091 List<String> error = data.hasErrors() ? Collections.singletonList(data.getError()) : Collections.<String>emptyList();
092 return new AlternativeMethodSignature(returnType, receiverType, valueParameters, typeParameters, error);
093 }
094
095 @Override
096 @NotNull
097 public AlternativeFieldSignature resolveAlternativeFieldSignature(
098 @NotNull JavaField field,
099 @NotNull JetType returnType,
100 boolean isVar
101 ) {
102 AlternativeFieldSignatureData data =
103 new AlternativeFieldSignatureData(externalAnnotationResolver, (JavaFieldImpl) field, returnType, isVar);
104
105 if (data.isAnnotated() && !data.hasErrors()) {
106 return new AlternativeFieldSignature(data.getReturnType(), null);
107 }
108
109 String error = data.hasErrors() ? data.getError() : null;
110 return new AlternativeFieldSignature(returnType, error);
111 }
112
113 @Override
114 public void reportSignatureErrors(@NotNull CallableMemberDescriptor descriptor, @NotNull List<String> signatureErrors) {
115 trace.record(JavaBindingContext.LOAD_FROM_JAVA_SIGNATURE_ERRORS, descriptor, signatureErrors);
116 }
117 }