org.codenarc.rule.design.NestedForLoopRule.groovy Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of CodeNarc Show documentation
Show all versions of CodeNarc Show documentation
The CodeNarc project provides a static analysis tool for Groovy code.
/*
* Copyright 2014 the original author or authors.
*
* 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.codenarc.rule.design
import org.codehaus.groovy.ast.stmt.ForStatement
import org.codenarc.rule.AbstractAstVisitorRule
import org.codenarc.rule.AbstractAstVisitor
/**
* Reports classes with nested for loops.
*
* @author Maciej Ziarko
*/
class NestedForLoopRule extends AbstractAstVisitorRule {
String name = 'NestedForLoop'
int priority = 3
Class astVisitorClass = NestedForLoopAstVisitor
}
class NestedForLoopAstVisitor extends AbstractAstVisitor {
private final Stack forStatementsStack = [] as Stack
@Override
void visitForLoop(ForStatement forLoop) {
forStatementsStack.push(forLoop)
if (isForNested()) {
addViolation(forLoop, 'Nested for loop')
}
super.visitForLoop(forLoop)
forStatementsStack.pop()
}
private boolean isForNested() {
return forStatementsStack.size() >= 2
}
}