| /* |
| * Copyright 2007-2008 Dave Griffith |
| * |
| * 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.plugins.groovy.codeInspection.bugs; |
| |
| import com.intellij.psi.PsiMethod; |
| import com.intellij.psi.PsiModifier; |
| import com.intellij.psi.PsiThisExpression; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElement; |
| import org.jetbrains.plugins.groovy.lang.psi.GroovyRecursiveElementVisitor; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrReferenceExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.path.GrMethodCallExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrMethod; |
| |
| class RecursionVisitor extends GroovyRecursiveElementVisitor { |
| |
| private boolean recursive = false; |
| private final GrMethod method; |
| private final String methodName; |
| |
| public RecursionVisitor(@NotNull GrMethod method) { |
| super(); |
| this.method = method; |
| methodName = method.getName(); |
| } |
| |
| @Override |
| public void visitElement(@NotNull GroovyPsiElement element) { |
| if (!recursive) { |
| super.visitElement(element); |
| } |
| } |
| |
| @Override |
| public void visitMethodCallExpression( |
| @NotNull GrMethodCallExpression call) { |
| if (recursive) { |
| return; |
| } |
| super.visitMethodCallExpression(call); |
| final GrExpression methodExpression = |
| call.getInvokedExpression(); |
| if (!(methodExpression instanceof GrReferenceExpression)) { |
| return; |
| } |
| final GrReferenceExpression referenceExpression = (GrReferenceExpression) methodExpression; |
| final String calledMethodName = referenceExpression.getReferenceName(); |
| if (calledMethodName == null) { |
| return; |
| } |
| if (!calledMethodName.equals(methodName)) { |
| return; |
| } |
| final PsiMethod calledMethod = call.resolveMethod(); |
| if (!method.equals(calledMethod)) { |
| return; |
| } |
| if (method.hasModifierProperty(PsiModifier.STATIC) || |
| method.hasModifierProperty(PsiModifier.PRIVATE)) { |
| recursive = true; |
| return; |
| } |
| final GrExpression qualifier = referenceExpression.getQualifierExpression(); |
| if (qualifier == null || qualifier instanceof PsiThisExpression) { |
| recursive = true; |
| } |
| } |
| |
| public boolean isRecursive() { |
| return recursive; |
| } |
| } |