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.types.error;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.jet.lang.descriptors.*;
021    import org.jetbrains.jet.lang.descriptors.annotations.Annotations;
022    import org.jetbrains.jet.lang.descriptors.impl.ClassDescriptorImpl;
023    import org.jetbrains.jet.lang.descriptors.impl.ConstructorDescriptorImpl;
024    import org.jetbrains.jet.lang.resolve.name.Name;
025    import org.jetbrains.jet.lang.resolve.scopes.JetScope;
026    import org.jetbrains.jet.lang.types.JetType;
027    import org.jetbrains.jet.lang.types.TypeProjection;
028    import org.jetbrains.jet.lang.types.TypeSubstitutor;
029    
030    import java.util.Collections;
031    import java.util.List;
032    
033    import static org.jetbrains.jet.lang.types.ErrorUtils.*;
034    
035    public final class ErrorClassDescriptor extends ClassDescriptorImpl {
036        public ErrorClassDescriptor(@NotNull String debugMessage) {
037            super(getErrorModule(), Name.special("<ERROR CLASS: " + debugMessage + ">"), Modality.OPEN, Collections.<JetType>emptyList());
038    
039            ConstructorDescriptorImpl errorConstructor =
040                    new ConstructorDescriptorImpl(this, Annotations.EMPTY, true);
041    
042            errorConstructor.initialize(
043                    Collections.<TypeParameterDescriptor>emptyList(), // TODO
044                    Collections.<ValueParameterDescriptor>emptyList(), // TODO
045                    Visibilities.INTERNAL
046            );
047            errorConstructor.setReturnType(createErrorType("<ERROR RETURN TYPE>"));
048    
049            initialize(createErrorScope("ERROR_CLASS"), Collections.<ConstructorDescriptor>singleton(errorConstructor), errorConstructor);
050        }
051    
052        @NotNull
053        @Override
054        public ClassDescriptor substitute(@NotNull TypeSubstitutor substitutor) {
055            return this;
056        }
057    
058        @Override
059        public String toString() {
060            return getName().asString();
061        }
062    
063        @NotNull
064        @Override
065        public JetScope getMemberScope(@NotNull List<? extends TypeProjection> typeArguments) {
066            return createErrorScope("Error scope for class " + getName() + " with arguments: " + typeArguments);
067        }
068    }