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Issue #14726: new check: ConstructorsDeclarationGroupingCheck
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105 changes: 105 additions & 0 deletions
105
...checkstyle/suppressionxpathfilter/XpathRegressionConstructorsDeclarationGroupingTest.java
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/////////////////////////////////////////////////////////////////////////////////////////////// | ||
// checkstyle: Checks Java source code and other text files for adherence to a set of rules. | ||
// Copyright (C) 2001-2024 the original author or authors. | ||
// | ||
// This library is free software; you can redistribute it and/or | ||
// modify it under the terms of the GNU Lesser General Public | ||
// License as published by the Free Software Foundation; either | ||
// version 2.1 of the License, or (at your option) any later version. | ||
// | ||
// This library is distributed in the hope that it will be useful, | ||
// but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
// Lesser General Public License for more details. | ||
// | ||
// You should have received a copy of the GNU Lesser General Public | ||
// License along with this library; if not, write to the Free Software | ||
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
/////////////////////////////////////////////////////////////////////////////////////////////// | ||
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package org.checkstyle.suppressionxpathfilter; | ||
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import java.io.File; | ||
import java.util.Arrays; | ||
import java.util.List; | ||
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import org.junit.jupiter.api.Test; | ||
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import com.puppycrawl.tools.checkstyle.DefaultConfiguration; | ||
import com.puppycrawl.tools.checkstyle.checks.coding.ConstructorsDeclarationGroupingCheck; | ||
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public class XpathRegressionConstructorsDeclarationGroupingTest extends AbstractXpathTestSupport { | ||
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private final Class<ConstructorsDeclarationGroupingCheck> clazz = | ||
ConstructorsDeclarationGroupingCheck.class; | ||
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@Override | ||
protected String getCheckName() { | ||
return clazz.getSimpleName(); | ||
} | ||
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@Test | ||
public void testOne() throws Exception { | ||
final File fileToProcess = new File( | ||
getPath("InputXpathConstructorsDeclarationGroupingClass.java")); | ||
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final DefaultConfiguration moduleConfig = createModuleConfig(clazz); | ||
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final String[] expectedViolation = { | ||
"10:5: " + getCheckMessage(clazz, | ||
ConstructorsDeclarationGroupingCheck.MSG_KEY, 6), | ||
}; | ||
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final List<String> expectedXpathQueries = Arrays.asList( | ||
"/COMPILATION_UNIT/CLASS_DEF[./IDENT" | ||
+ "[@text='InputXpathConstructorsDeclarationGroupingClass']]" | ||
+ "/OBJBLOCK/CTOR_DEF[./IDENT" | ||
+ "[@text='InputXpathConstructorsDeclarationGroupingClass']]", | ||
"/COMPILATION_UNIT/CLASS_DEF[./IDENT" | ||
+ "[@text='InputXpathConstructorsDeclarationGroupingClass']]" | ||
+ "/OBJBLOCK/CTOR_DEF[./IDENT" | ||
+ "[@text='InputXpathConstructorsDeclarationGroupingClass']]" | ||
+ "/MODIFIERS", | ||
"/COMPILATION_UNIT/CLASS_DEF[./IDENT" | ||
+ "[@text='InputXpathConstructorsDeclarationGroupingClass']]" | ||
+ "/OBJBLOCK/CTOR_DEF/IDENT" | ||
+ "[@text='InputXpathConstructorsDeclarationGroupingClass']" | ||
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); | ||
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runVerifications(moduleConfig, fileToProcess, expectedViolation, expectedXpathQueries); | ||
} | ||
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@Test | ||
public void testTwo() throws Exception { | ||
final File fileToProcess = new File( | ||
getPath("InputXpathConstructorsDeclarationGroupingEnum.java")); | ||
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final DefaultConfiguration moduleConfig = createModuleConfig(clazz); | ||
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final String[] expectedViolation = { | ||
"12:5: " + getCheckMessage(clazz, | ||
ConstructorsDeclarationGroupingCheck.MSG_KEY, 8), | ||
}; | ||
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final List<String> expectedXpathQueries = Arrays.asList( | ||
"/COMPILATION_UNIT/ENUM_DEF[./IDENT" | ||
+ "[@text='InputXpathConstructorsDeclarationGroupingEnum']]" | ||
+ "/OBJBLOCK/CTOR_DEF" | ||
+ "[./IDENT[@text='InputXpathConstructorsDeclarationGroupingEnum']]", | ||
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"/COMPILATION_UNIT/ENUM_DEF[./IDENT" | ||
+ "[@text='InputXpathConstructorsDeclarationGroupingEnum']]" | ||
+ "/OBJBLOCK/CTOR_DEF" | ||
+ "[./IDENT[@text='InputXpathConstructorsDeclarationGroupingEnum']]" | ||
+ "/MODIFIERS", | ||
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"/COMPILATION_UNIT/ENUM_DEF[./IDENT" | ||
+ "[@text='InputXpathConstructorsDeclarationGroupingEnum']]" | ||
+ "/OBJBLOCK/CTOR_DEF/IDENT" | ||
+ "[@text='InputXpathConstructorsDeclarationGroupingEnum']" | ||
); | ||
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runVerifications(moduleConfig, fileToProcess, expectedViolation, expectedXpathQueries); | ||
} | ||
} |
11 changes: 11 additions & 0 deletions
11
...ilter/constructorsdeclarationgrouping/InputXpathConstructorsDeclarationGroupingClass.java
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package org.checkstyle.suppressionxpathfilter.constructorsdeclarationgrouping; | ||
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public class InputXpathConstructorsDeclarationGroupingClass { | ||
InputXpathConstructorsDeclarationGroupingClass() {} | ||
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InputXpathConstructorsDeclarationGroupingClass(int a) {} | ||
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int x; | ||
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InputXpathConstructorsDeclarationGroupingClass(String str) {} // warn | ||
} |
13 changes: 13 additions & 0 deletions
13
...filter/constructorsdeclarationgrouping/InputXpathConstructorsDeclarationGroupingEnum.java
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package org.checkstyle.suppressionxpathfilter.constructorsdeclarationgrouping; | ||
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public enum InputXpathConstructorsDeclarationGroupingEnum { | ||
ONE; | ||
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InputXpathConstructorsDeclarationGroupingEnum() {} | ||
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InputXpathConstructorsDeclarationGroupingEnum(String str) {} | ||
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int f; | ||
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InputXpathConstructorsDeclarationGroupingEnum(int x) {} // warn | ||
} |
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109 changes: 109 additions & 0 deletions
109
...a/com/puppycrawl/tools/checkstyle/checks/coding/ConstructorsDeclarationGroupingCheck.java
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/////////////////////////////////////////////////////////////////////////////////////////////// | ||
// checkstyle: Checks Java source code and other text files for adherence to a set of rules. | ||
// Copyright (C) 2001-2024 the original author or authors. | ||
// | ||
// This library is free software; you can redistribute it and/or | ||
// modify it under the terms of the GNU Lesser General Public | ||
// License as published by the Free Software Foundation; either | ||
// version 2.1 of the License, or (at your option) any later version. | ||
// | ||
// This library is distributed in the hope that it will be useful, | ||
// but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
// Lesser General Public License for more details. | ||
// | ||
// You should have received a copy of the GNU Lesser General Public | ||
// License along with this library; if not, write to the Free Software | ||
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
/////////////////////////////////////////////////////////////////////////////////////////////// | ||
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package com.puppycrawl.tools.checkstyle.checks.coding; | ||
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import java.util.HashMap; | ||
import java.util.Map; | ||
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import com.puppycrawl.tools.checkstyle.FileStatefulCheck; | ||
import com.puppycrawl.tools.checkstyle.api.AbstractCheck; | ||
import com.puppycrawl.tools.checkstyle.api.DetailAST; | ||
import com.puppycrawl.tools.checkstyle.api.TokenTypes; | ||
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/** | ||
* <p> | ||
* Checks that all constructors are grouped together. | ||
* If there is any code between the constructors ( expect comments ) | ||
* then this check will give an error. | ||
* </p> | ||
* <p> | ||
* Parent is {@code com.puppycrawl.tools.checkstyle.TreeWalker} | ||
* </p> | ||
* <p> | ||
* Violation Message Keys: | ||
* </p> | ||
* <ul> | ||
* <li> | ||
* {@code constructors.declaration.grouping} | ||
* </li> | ||
* </ul> | ||
* | ||
* @since 10.16.0 | ||
*/ | ||
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@FileStatefulCheck | ||
public class ConstructorsDeclarationGroupingCheck extends AbstractCheck { | ||
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/** | ||
* A key is pointing to the warning message text in "messages.properties" | ||
* file. | ||
*/ | ||
public static final String MSG_KEY = "constructors.declaration.grouping"; | ||
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/** | ||
* Specifies different Object Blocks scope. | ||
*/ | ||
private final Map<DetailAST, Integer> allObjBlocks = new HashMap<>(); | ||
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@Override | ||
public int[] getDefaultTokens() { | ||
return getRequiredTokens(); | ||
} | ||
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@Override | ||
public int[] getAcceptableTokens() { | ||
return getRequiredTokens(); | ||
} | ||
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@Override | ||
public int[] getRequiredTokens() { | ||
return new int[] { | ||
TokenTypes.CTOR_DEF, | ||
TokenTypes.COMPACT_CTOR_DEF, | ||
}; | ||
} | ||
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@Override | ||
public void beginTree(DetailAST rootAst) { | ||
allObjBlocks.clear(); | ||
} | ||
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@Override | ||
public void visitToken(DetailAST ast) { | ||
final DetailAST currObjBlock = ast.getParent(); | ||
final Integer previousCtorLineNo = allObjBlocks.get(currObjBlock); | ||
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if (previousCtorLineNo != null) { | ||
final DetailAST previousSibling = ast.getPreviousSibling(); | ||
final int siblingType = previousSibling.getType(); | ||
final boolean isCtor = siblingType == TokenTypes.CTOR_DEF; | ||
final boolean isCompactCtor = siblingType == TokenTypes.COMPACT_CTOR_DEF; | ||
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if (!isCtor && !isCompactCtor) { | ||
log(ast, MSG_KEY, previousCtorLineNo); | ||
} | ||
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allObjBlocks.put(currObjBlock, ast.getLineNo()); | ||
} | ||
else { | ||
allObjBlocks.put(currObjBlock, ast.getLineNo()); | ||
} | ||
} | ||
} |
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