/*
 * Created on Apr 28, 2005
 */
package jdt.tests;

import junit.framework.TestCase;

import org.eclipse.jdt.core.dom.AST;
import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.ASTParser;
import org.eclipse.jdt.core.dom.Block;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jdt.core.dom.ExpressionStatement;
import org.eclipse.jdt.core.dom.FieldAccess;
import org.eclipse.jdt.core.dom.MethodDeclaration;
import org.eclipse.jdt.core.dom.MethodInvocation;
import org.eclipse.jdt.core.dom.PrimitiveType;
import org.eclipse.jdt.core.dom.StructuralPropertyDescriptor;
import org.eclipse.jdt.core.dom.TypeDeclaration;
import org.eclipse.jface.text.Document;
import org.eclipse.text.edits.TextEdit;

/**
 * @author TEXP201
 *
 */
public class AstRewriteBug extends TestCase {
    
    
    public void testAstRewriteBug() throws Exception {
        Document sourceDoc = new Document("package test; public class Test { }");
        CompilationUnit unit = buildCU(sourceDoc);
        unit.recordModifications();
        TypeDeclaration type = (TypeDeclaration) unit.types().get(0);
        AST ast = type.getAST();
        
        MethodDeclaration m = ast.newMethodDeclaration();
        type.bodyDeclarations().add(m);
        
        Block block = ast.newBlock();
        m.setName(ast.newSimpleName("foo"));
        m.setReturnType(ast.newPrimitiveType(PrimitiveType.VOID));
        m.setBody(block);

        FieldAccess fa = ast.newFieldAccess();
        fa.setExpression(ast.newThisExpression());
        fa.setName(ast.newSimpleName("x"));
        MethodInvocation mi = ast.newMethodInvocation();
        mi.setExpression(fa);
        mi.setName(ast.newSimpleName("llall"));
        
        ExpressionStatement exp = ast.newExpressionStatement(mi);
        block.statements().add(exp);

        StructuralPropertyDescriptor loc = mi.getLocationInParent();
        //This will cause the bug
        ASTNode node = ASTNode.copySubtree(ast, fa);
        exp.setStructuralProperty(loc, node);

        TextEdit edit = unit.rewrite(sourceDoc, null);        
        edit.apply(sourceDoc);        
        System.out.println(sourceDoc.get());
    }

    
    
    CompilationUnit buildCU(Document doc) {
        ASTParser p = ASTParser.newParser(AST.JLS2);
        p.setSource(doc.get().toCharArray());
        p.setUnitName("Test" + ".java");

        return (CompilationUnit) p.createAST(null);
    }

}