org.jetbrains.kotlin.psi.KtDotQualifiedExpression Maven / Gradle / Ivy
/*
* 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.psi;
import com.intellij.lang.ASTNode;
import com.intellij.openapi.diagnostic.Logger;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.kotlin.lexer.KtToken;
import org.jetbrains.kotlin.psi.stubs.KotlinPlaceHolderStub;
import org.jetbrains.kotlin.psi.stubs.elements.KtStubElementTypes;
import static org.jetbrains.kotlin.psi.stubs.elements.KtStubElementTypes.INSIDE_DIRECTIVE_EXPRESSIONS;
public class KtDotQualifiedExpression extends KtExpressionImplStub>
implements KtQualifiedExpression {
private static final Logger LOG = Logger.getInstance(KtDotQualifiedExpression.class);
public KtDotQualifiedExpression(@NotNull ASTNode node) {
super(node);
}
public KtDotQualifiedExpression(@NotNull KotlinPlaceHolderStub stub) {
super(stub, KtStubElementTypes.DOT_QUALIFIED_EXPRESSION);
}
@Override
public R accept(@NotNull KtVisitor visitor, D data) {
return visitor.visitDotQualifiedExpression(this, data);
}
@NotNull
@Override
public KtExpression getReceiverExpression() {
KotlinPlaceHolderStub stub = getStub();
if (stub != null) {
KtExpression[] childExpressionsByStub = getChildExpressionsByStub(stub);
if (childExpressionsByStub != null) {
return childExpressionsByStub[0];
}
}
return KtQualifiedExpressionImpl.INSTANCE.getReceiverExpression(this);
}
@Nullable
@Override
public KtExpression getSelectorExpression() {
KotlinPlaceHolderStub stub = getStub();
if (stub != null) {
KtExpression[] childExpressionsByStub = getChildExpressionsByStub(stub);
if (childExpressionsByStub != null && childExpressionsByStub.length == 2) {
return childExpressionsByStub[1];
}
}
return KtQualifiedExpressionImpl.INSTANCE.getSelectorExpression(this);
}
@Nullable
private KtExpression[] getChildExpressionsByStub(@NotNull KotlinPlaceHolderStub stub) {
if (stub.getParentStubOfType(KtImportDirective.class) == null && stub.getParentStubOfType(KtPackageDirective.class) == null) {
LOG.error("JetDotQualifiedExpression should only have stubs inside import or package directives.\n " +
"Stubs were created for:\n " + getText() +
"\nFile text:\n" + getContainingFile().getText());
return null;
}
else {
KtExpression[] expressions = stub.getChildrenByType(INSIDE_DIRECTIVE_EXPRESSIONS, KtExpression.ARRAY_FACTORY);
if (expressions.length < 1 || expressions.length > 2) {
LOG.error("Invalid stub structure. DOT_QUALIFIED_EXPRESSION must have one or two children. Was: " + expressions.length +
"\nFile text:\n" + getContainingFile().getText());
return null;
}
return expressions;
}
}
@NotNull
@Override
public ASTNode getOperationTokenNode() {
return KtQualifiedExpressionImpl.INSTANCE.getOperationTokenNode(this);
}
@NotNull
@Override
public KtToken getOperationSign() {
return KtQualifiedExpressionImpl.INSTANCE.getOperationSign(this);
}
}