org.jetbrains.kotlin.asJava.KtLightClassForAnonymousDeclaration Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of kotlin-compiler Show documentation
Kotlin Compiler
There is a newer version: 2.1.0-Beta1
/*
 * Copyright 2010-2015 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.jetbrains.kotlin.asJava;

import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.project.Project;
import com.intellij.psi.*;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.reference.SoftReference;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.kotlin.descriptors.ClassDescriptor;
import org.jetbrains.kotlin.descriptors.DeclarationDescriptor;
import org.jetbrains.kotlin.name.FqName;
import org.jetbrains.kotlin.psi.KtClassOrObject;
import org.jetbrains.kotlin.resolve.DescriptorUtils;
import org.jetbrains.kotlin.types.KotlinType;

import java.util.Collection;

class KtLightClassForAnonymousDeclaration extends KtLightClassForExplicitDeclaration implements PsiAnonymousClass {
    private static final Logger LOG = Logger.getInstance(KtLightClassForAnonymousDeclaration.class);

    private SoftReference cachedBaseType = null;

    KtLightClassForAnonymousDeclaration(@NotNull FqName name, @NotNull KtClassOrObject classOrObject) {
        super(name, classOrObject);
    }

    @NotNull
    @Override
    public PsiJavaCodeReferenceElement getBaseClassReference() {
        return JavaPsiFacade.getElementFactory(getClassOrObject().getProject()).createReferenceElementByType(getBaseClassType());
    }

    @Nullable
    @Override
    public PsiClass getContainingClass() {
        return getDelegate().getContainingClass();
    }

    @NotNull
    private String getFirstSupertypeFQName() {
        ClassDescriptor descriptor = getDescriptor();
        if (descriptor == null) return CommonClassNames.JAVA_LANG_OBJECT;

        Collection superTypes = descriptor.getTypeConstructor().getSupertypes();

        if (superTypes.isEmpty()) return CommonClassNames.JAVA_LANG_OBJECT;

        KotlinType superType = superTypes.iterator().next();
        DeclarationDescriptor superClassDescriptor = superType.getConstructor().getDeclarationDescriptor();

        if (superClassDescriptor == null) {
            LOG.error("No declaration descriptor for supertype " + superType + " of " + getDescriptor());
            // return java.lang.Object for recovery
            return CommonClassNames.JAVA_LANG_OBJECT;
        }

        return DescriptorUtils.getFqName(superClassDescriptor).asString();
    }

    @NotNull
    @Override
    public synchronized PsiClassType getBaseClassType() {
        PsiClassType type = null;
        if (cachedBaseType != null) type = cachedBaseType.get();
        if (type != null && type.isValid()) return type;

        String firstSupertypeFQName = getFirstSupertypeFQName();
        for (PsiClassType superType : getSuperTypes()) {
            PsiClass superClass = superType.resolve();
            if (superClass != null && firstSupertypeFQName.equals(superClass.getQualifiedName())) {
                type = superType;
                break;
            }
        }

        if (type == null) {
            Project project = getClassOrObject().getProject();
            type = PsiType.getJavaLangObject(PsiManager.getInstance(project), GlobalSearchScope.allScope(project));
        }

        cachedBaseType = new SoftReference(type);
        return type;
    }

    @Nullable
    @Override
    public PsiExpressionList getArgumentList() {
        return null;
    }

    @Override
    public boolean isInQualifiedNew() {
        return false;
    }
}