diff options
Diffstat (limited to 'javaparser-testing/src/test/java/com/github/javaparser/wiki_samples/removenode')
3 files changed, 128 insertions, 0 deletions
diff --git a/javaparser-testing/src/test/java/com/github/javaparser/wiki_samples/removenode/D.java b/javaparser-testing/src/test/java/com/github/javaparser/wiki_samples/removenode/D.java new file mode 100644 index 000000000..dd925bc35 --- /dev/null +++ b/javaparser-testing/src/test/java/com/github/javaparser/wiki_samples/removenode/D.java @@ -0,0 +1,29 @@ +/* + * Copyright (C) 2007-2010 Júlio Vilmar Gesser. + * Copyright (C) 2011, 2013-2016 The JavaParser Team. + * + * This file is part of JavaParser. + * + * JavaParser can be used either under the terms of + * a) the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * b) the terms of the Apache License + * + * You should have received a copy of both licenses in LICENCE.LGPL and + * LICENCE.APACHE. Please refer to those files for details. + * + * JavaParser 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. + */ + +package com.github.javaparser.wiki_samples.removenode; + +public class D { + + public void foo(int e) { + int a = 20; + } +} diff --git a/javaparser-testing/src/test/java/com/github/javaparser/wiki_samples/removenode/ModifierVisitorTest.java b/javaparser-testing/src/test/java/com/github/javaparser/wiki_samples/removenode/ModifierVisitorTest.java new file mode 100644 index 000000000..d522c9625 --- /dev/null +++ b/javaparser-testing/src/test/java/com/github/javaparser/wiki_samples/removenode/ModifierVisitorTest.java @@ -0,0 +1,65 @@ +/* + * Copyright (C) 2007-2010 Júlio Vilmar Gesser. + * Copyright (C) 2011, 2013-2016 The JavaParser Team. + * + * This file is part of JavaParser. + * + * JavaParser can be used either under the terms of + * a) the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * b) the terms of the Apache License + * + * You should have received a copy of both licenses in LICENCE.LGPL and + * LICENCE.APACHE. Please refer to those files for details. + * + * JavaParser 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. + */ + +package com.github.javaparser.wiki_samples.removenode; + +import com.github.javaparser.JavaParser; +import com.github.javaparser.ast.CompilationUnit; +import com.github.javaparser.ast.Node; +import com.github.javaparser.ast.body.VariableDeclarator; +import com.github.javaparser.ast.expr.Expression; +import com.github.javaparser.ast.expr.IntegerLiteralExpr; +import com.github.javaparser.ast.visitor.ModifierVisitor; + +import java.io.FileInputStream; + +public class ModifierVisitorTest { + + public static void main(String... args) throws Exception { + // parse the file + CompilationUnit cu = JavaParser.parse(new FileInputStream("forGitHubTest.java")); + + // The visitor should remove all a=20 variable declarations. + cu.accept(new MyVisitor(), null); + + System.out.println(cu.toString()); + } +} + +class MyVisitor extends ModifierVisitor<Void> { + @Override + public Node visit(VariableDeclarator declarator, Void args) { + if (declarator.getNameAsString().equals("a") + // the initializer is optional, first check if there is one + && declarator.getInitializer().isPresent()) { + Expression expression = declarator.getInitializer().get(); + // We're looking for a literal integer. + if (expression instanceof IntegerLiteralExpr) { + // We found one. Is it literal integer 20? + if (((IntegerLiteralExpr) expression).getValue().equals("20")) { + // Returning null means "remove this VariableDeclarator" + return null; + } + } + } + return declarator; + } +} diff --git a/javaparser-testing/src/test/java/com/github/javaparser/wiki_samples/removenode/RemoveDeleteNodeFromAst.java b/javaparser-testing/src/test/java/com/github/javaparser/wiki_samples/removenode/RemoveDeleteNodeFromAst.java new file mode 100644 index 000000000..72756e94f --- /dev/null +++ b/javaparser-testing/src/test/java/com/github/javaparser/wiki_samples/removenode/RemoveDeleteNodeFromAst.java @@ -0,0 +1,34 @@ +/* + * Copyright (C) 2007-2010 Júlio Vilmar Gesser. + * Copyright (C) 2011, 2013-2016 The JavaParser Team. + * + * This file is part of JavaParser. + * + * JavaParser can be used either under the terms of + * a) the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * b) the terms of the Apache License + * + * You should have received a copy of both licenses in LICENCE.LGPL and + * LICENCE.APACHE. Please refer to those files for details. + * + * JavaParser 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. + */ + +package com.github.javaparser.wiki_samples.removenode; + +import com.github.javaparser.wiki_samples.TestFileToken; +import org.junit.Test; + +public class RemoveDeleteNodeFromAst { + @Test + public void testCode1() throws Exception { + try (TestFileToken f = new TestFileToken("forGitHubTest.java")) { + ModifierVisitorTest.main(); + } + } +} |