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package org.eclipse.cdt.codan.extension;
import org.eclipse.cdt.core.dom.ast.ASTVisitor;
import org.eclipse.cdt.core.dom.ast.IASTBinaryExpression;
import org.eclipse.cdt.core.dom.ast.IASTDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTExpression;
import org.eclipse.cdt.core.dom.ast.IASTInitializer;
import org.eclipse.cdt.core.dom.ast.IASTNode;
/*******************************************************************************
* Copyright (c) 2009 Elliott Baron
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Elliott Baron - initial API and implementation
*******************************************************************************/
public class VariableAssignmentVisitor extends ASTVisitor {
private ExecutionState es;
public VariableAssignmentVisitor(ExecutionState es) {
this.es = es;
shouldVisitInitializers = true;
shouldVisitExpressions = true;
}
@Override
public int visit(IASTInitializer initializer) {
IASTNode parent = initializer.getParent();
if (parent instanceof IASTDeclarator) {
es.addClause(new ExecutionStateClause(parent));
return PROCESS_SKIP;
}
return PROCESS_CONTINUE;
}
@Override
public int visit(IASTExpression expression) {
if (expression instanceof IASTBinaryExpression) {
IASTBinaryExpression binExpr = (IASTBinaryExpression) expression;
int op = binExpr.getOperator();
// Check operator is an assignment operator
if (op >= IASTBinaryExpression.op_assign
&& op <= IASTBinaryExpression.op_binaryOrAssign) {
es.addClause(new ExecutionStateClause(binExpr));
return PROCESS_SKIP;
}
}
return PROCESS_CONTINUE;
}
}
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