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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
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VerifierCodeVisitor.java | 0% | 0% | 0% | 0% |
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/*
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$Id: VerifierCodeVisitor.java,v 1.10 2004/07/13 14:37:48 jstrachan Exp $
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Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
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Redistribution and use of this software and associated documentation
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("Software"), with or without modification, are permitted provided
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that the following conditions are met:
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1. Redistributions of source code must retain copyright
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statements and notices. Redistributions must also contain a
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copy of this document.
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2. Redistributions in binary form must reproduce the
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above copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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3. The name "groovy" must not be used to endorse or promote
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products derived from this Software without prior written
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permission of The Codehaus. For written permission,
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please contact info@codehaus.org.
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4. Products derived from this Software may not be called "groovy"
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nor may "groovy" appear in their names without prior written
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permission of The Codehaus. "groovy" is a registered
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trademark of The Codehaus.
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5. Due credit should be given to The Codehaus -
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http://groovy.codehaus.org/
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THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
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NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.codehaus.groovy.classgen;
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import org.codehaus.groovy.ast.ASTNode;
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import org.codehaus.groovy.ast.CodeVisitorSupport;
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import org.codehaus.groovy.ast.stmt.ForStatement;
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import org.codehaus.groovy.ast.expr.BinaryExpression;
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import org.codehaus.groovy.ast.expr.MethodCallExpression;
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import org.codehaus.groovy.ast.expr.PropertyExpression;
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import org.codehaus.groovy.ast.expr.FieldExpression;
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import org.codehaus.groovy.ast.expr.VariableExpression;
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import org.codehaus.groovy.syntax.parser.RuntimeParserException;
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import org.objectweb.asm.Constants;
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/**
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* Verifies the method code
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*
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* @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
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* @version $Revision: 1.10 $
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*/
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public class VerifierCodeVisitor extends CodeVisitorSupport implements Constants { |
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private Verifier verifier;
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VerifierCodeVisitor(Verifier verifier) { |
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this.verifier = verifier;
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} |
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public void visitMethodCallExpression(MethodCallExpression call) { |
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assertValidIdentifier(call.getMethod(), "method name", call);
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super.visitMethodCallExpression(call);
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} |
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public void visitForLoop(ForStatement expression) { |
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assertValidIdentifier(expression.getVariable(), "for loop variable name", expression);
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super.visitForLoop(expression);
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} |
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public void visitPropertyExpression(PropertyExpression expression) { |
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assertValidIdentifier(expression.getProperty(), "property name", expression);
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super.visitPropertyExpression(expression);
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} |
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public void visitFieldExpression(FieldExpression expression) { |
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assertValidIdentifier(expression.getFieldName(), "field name", expression);
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super.visitFieldExpression(expression);
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} |
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public void visitVariableExpression(VariableExpression expression) { |
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assertValidIdentifier(expression.getVariable(), "variable name", expression);
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super.visitVariableExpression(expression);
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} |
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public void visitBinaryExpression(BinaryExpression expression) { |
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/*
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if (verifier.getClassNode().isScript() && expression.getOperation().getType() == Token.EQUAL) {
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// lets turn variable assignments into property assignments
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Expression left = expression.getLeftExpression();
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if (left instanceof VariableExpression) {
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VariableExpression varExp = (VariableExpression) left;
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//System.out.println("Converting variable expression: " + varExp.getVariable());
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PropertyExpression propExp =
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new PropertyExpression(VariableExpression.THIS_EXPRESSION, varExp.getVariable());
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expression.setLeftExpression(propExp);
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}
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}
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*/
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super.visitBinaryExpression(expression);
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} |
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public static void assertValidIdentifier(String name, String message, ASTNode node) { |
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int size = name.length();
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if (size <= 0) {
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throw new RuntimeParserException("Invalid " + message + ". Identifier must not be empty", node); |
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} |
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char firstCh = name.charAt(0);
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if (!Character.isJavaIdentifierStart(firstCh) || firstCh == '$') {
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throw new RuntimeParserException("Invalid " + message + ". Must start with a letter but was: " + name, node); |
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} |
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for (int i = 1; i < size; i++) { |
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char ch = name.charAt(i);
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if (!Character.isJavaIdentifierPart(ch)) {
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throw new RuntimeParserException("Invalid " + message + ". Invalid character at position: " + (i + 1) + " of value: " + ch + " in name: " + name, node); |
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} |
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} |
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} |
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} |
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