/*
* Copyright 2003-2007 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.codehaus.groovy.ast.stmt;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.codehaus.groovy.ast.GroovyCodeVisitor;
import org.codehaus.groovy.ast.VariableScope;
/**
* A list of statements and a scope.
*
* @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
* @version $Revision: 21288 $
*/
public class BlockStatement extends Statement {
private List<Statement> statements = new ArrayList<Statement>();
private VariableScope scope;
public BlockStatement() {
this(new ArrayList<Statement>(), new VariableScope());
}
/**
* Creates a BlockStatement with a scope and children statements.
* @param statements
* the statements. Do not pass null. If you do, no exception will occur,
* but a NullPointerException will eventually occur later. Also, a reference
* to the list is kept, so modifying the List later does effect this class.
* @param scope
* the scope
*/
public BlockStatement(List<Statement> statements, VariableScope scope) {
this.statements = statements;
this.scope = scope;
}
/**
* Creates a BlockStatement with a scope and children statements.
* @param statements
* the statements, which cannot be null or an exception occurs. No reference
* to the array is held, so modifying the array later has no effect on this
* class.
* @param scope
* the scope
*/
public BlockStatement(Statement[] statements, VariableScope scope) {
this.statements.addAll(Arrays.asList(statements));
this.scope = scope;
}
public void visit(GroovyCodeVisitor visitor) {
visitor.visitBlockStatement(this);
}
public List<Statement> getStatements() {
return statements;
}
public void addStatement(Statement statement) {
statements.add(statement);
}
public void addStatements(List<Statement> listOfStatements) {
statements.addAll(listOfStatements);
}
public String toString() {
return super.toString() + statements;
}
public String getText() {
StringBuffer buffer = new StringBuffer("{ ");
boolean first = true;
for (Statement statement : statements) {
if (first) {
first = false;
}
else {
buffer.append("; ");
}
buffer.append(statement.getText());
}
buffer.append(" }");
return buffer.toString();
}
public boolean isEmpty() {
return statements.isEmpty();
}
public void setVariableScope(VariableScope scope) {
this.scope = scope;
}
public VariableScope getVariableScope() {
return scope;
}
}