001    /*
002     * Copyright 2010-2014 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.calls;
018    
019    import com.intellij.psi.PsiElement;
020    import org.jetbrains.annotations.NotNull;
021    import org.jetbrains.jet.lang.descriptors.CallableDescriptor;
022    import org.jetbrains.jet.lang.descriptors.TypeParameterDescriptor;
023    import org.jetbrains.jet.lang.diagnostics.Errors;
024    import org.jetbrains.jet.lang.psi.JetExpression;
025    import org.jetbrains.jet.lang.resolve.calls.context.BasicCallResolutionContext;
026    import org.jetbrains.jet.lang.resolve.calls.model.ResolvedCall;
027    import org.jetbrains.jet.lang.resolve.calls.results.OverloadResolutionResultsImpl;
028    import org.jetbrains.jet.lang.types.JetType;
029    
030    import java.util.Map;
031    
032    public class TypeParameterAsReifiedCheck implements CallResolverExtension {
033        @Override
034        public <F extends CallableDescriptor> void run(
035                @NotNull ResolvedCall<F> resolvedCall, @NotNull BasicCallResolutionContext context
036        ) {
037            Map<TypeParameterDescriptor, JetType> typeArguments = resolvedCall.getTypeArguments();
038            for (Map.Entry<TypeParameterDescriptor, JetType> entry : typeArguments.entrySet()) {
039                TypeParameterDescriptor parameter = entry.getKey();
040                JetType argument = entry.getValue();
041                if (parameter.isReified() && argument.getConstructor().getDeclarationDescriptor() instanceof TypeParameterDescriptor) {
042                    JetExpression callee = context.call.getCalleeExpression();
043                    PsiElement element = callee != null ? callee : context.call.getCallElement();
044                    context.trace.report(Errors.TYPE_PARAMETER_AS_REIFIED.on(element, typeArguments.keySet().iterator().next()));
045                }
046            }
047        }
048    }