/*
* Copyright (c) 2007-2008, Dennis M. Sosnoski. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this list of conditions and the following
* disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of
* JiBX nor the names of its contributors may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.jibx.schema.codegen;
import org.eclipse.jdt.core.dom.CharacterLiteral;
import org.eclipse.jdt.core.dom.Expression;
import org.eclipse.jdt.core.dom.StringLiteral;
/**
* Abstract syntax tree expression builder base. This is used for expressions with multiple component operands. It adds
* convenience methods and control information to the base builder.
*/
public abstract class ExpressionBuilderBase extends ASTBuilderBase
{
/** Source builder. */
protected final ClassBuilder m_source;
/** Expression under construction. */
protected final Expression m_expression;
/**
* Constructor.
*
* @param source
* @param expr
*/
public ExpressionBuilderBase(ClassBuilder source, Expression expr) {
super(source.getAST());
m_source = source;
m_expression = expr;
}
/**
* Get expression. This is provided only for use by other classes in this package.
*
* @return expression
*/
Expression getExpression() {
return m_expression;
}
/**
* Add operand to expression. This must be implemented by each subclass to handle adding another operand.
*
* @param operand
*/
protected abstract void addOperand(Expression operand);
/**
* Add a local variable or field name operand to expression.
*
* @param name
*/
public void addVariableOperand(String name) {
addOperand(m_ast.newSimpleName(name));
}
/**
* Add a string literal operand to expression.
*
* @param value
*/
public void addStringLiteralOperand(String value) {
StringLiteral strlit = m_ast.newStringLiteral();
strlit.setLiteralValue(value);
addOperand(strlit);
}
/**
* Add a character literal operand to expression.
*
* @param value
*/
public void addCharacterLiteralOperand(char value) {
CharacterLiteral literal = m_ast.newCharacterLiteral();
literal.setCharValue(value);
addOperand(literal);
}
/**
* Add a number literal operand to expression.
*
* @param value
*/
public void addNumberLiteralOperand(String value) {
addOperand(m_ast.newNumberLiteral(value));
}
/**
* Add a <code>null</code> literal operand to expression.
*/
public void addNullOperand() {
addOperand(m_ast.newNullLiteral());
}
/**
* Add another expression as an operand.
*
* @param builder expression builder
*/
public void addOperand(ExpressionBuilderBase builder) {
addOperand(builder.m_expression);
}
}