| /* |
| * 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.metrics; |
| |
| 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.*; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.clauses.GrCaseSection; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrConditionalExpression; |
| import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrMethod; |
| |
| class CyclomaticComplexityVisitor extends GroovyRecursiveElementVisitor { |
| private int complexity = 1; |
| |
| @Override |
| public void visitElement(GroovyPsiElement GrElement) { |
| int oldComplexity = 0; |
| if (GrElement instanceof GrMethod) { |
| oldComplexity = complexity; |
| } |
| super.visitElement(GrElement); |
| |
| if (GrElement instanceof GrMethod) { |
| complexity = oldComplexity; |
| } |
| } |
| |
| @Override |
| public void visitForStatement(@NotNull GrForStatement statement) { |
| super.visitForStatement(statement); |
| complexity++; |
| } |
| |
| |
| @Override |
| public void visitIfStatement(@NotNull GrIfStatement statement) { |
| super.visitIfStatement(statement); |
| complexity++; |
| } |
| |
| @Override |
| public void visitConditionalExpression(GrConditionalExpression expression) { |
| super.visitConditionalExpression(expression); |
| complexity++; |
| } |
| |
| @Override |
| public void visitSwitchStatement(@NotNull GrSwitchStatement statement) { |
| super.visitSwitchStatement(statement); |
| final GrCaseSection[] caseClauses = statement.getCaseSections(); |
| for (GrCaseSection clause : caseClauses) { |
| final GrStatement[] statements = clause.getStatements(); |
| if (statements != null && statements.length != 0) { |
| complexity++; |
| } |
| } |
| } |
| |
| @Override |
| public void visitWhileStatement(@NotNull GrWhileStatement statement) { |
| super.visitWhileStatement(statement); |
| complexity++; |
| } |
| |
| public int getComplexity() { |
| return complexity; |
| } |
| } |