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/* valaccodeunaryexpression.vala
*
* Copyright (C) 2006 Jürg Billeter
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author:
* Jürg Billeter <j@bitron.ch>
*/
using GLib;
/**
* Represents an expression with one operand in the C code.
*/
public class Vala.CCodeUnaryExpression : CCodeExpression {
/**
* The unary operator.
*/
public CCodeUnaryOperator operator { get; set; }
/**
* The operand.
*/
public CCodeExpression! inner { get; set construct; }
public CCodeUnaryExpression (CCodeUnaryOperator op, CCodeExpression! expr) {
operator = op;
inner = expr;
}
public override void write (CCodeWriter! writer) {
if (operator == CCodeUnaryOperator.PLUS) {
writer.write_string ("+");
} else if (operator == CCodeUnaryOperator.MINUS) {
writer.write_string ("-");
} else if (operator == CCodeUnaryOperator.LOGICAL_NEGATION) {
writer.write_string ("!");
} else if (operator == CCodeUnaryOperator.BITWISE_COMPLEMENT) {
writer.write_string ("~");
} else if (operator == CCodeUnaryOperator.POINTER_INDIRECTION) {
writer.write_string ("*");
} else if (operator == CCodeUnaryOperator.ADDRESS_OF) {
writer.write_string ("&");
} else if (operator == CCodeUnaryOperator.PREFIX_INCREMENT) {
writer.write_string ("++");
} else if (operator == CCodeUnaryOperator.PREFIX_DECREMENT) {
writer.write_string ("--");
}
inner.write (writer);
if (operator == CCodeUnaryOperator.POSTFIX_INCREMENT) {
writer.write_string ("++");
} else if (operator == CCodeUnaryOperator.POSTFIX_DECREMENT) {
writer.write_string ("--");
}
}
}
public enum Vala.CCodeUnaryOperator {
PLUS,
MINUS,
LOGICAL_NEGATION,
BITWISE_COMPLEMENT,
POINTER_INDIRECTION,
ADDRESS_OF,
PREFIX_INCREMENT,
PREFIX_DECREMENT,
POSTFIX_INCREMENT,
POSTFIX_DECREMENT
}
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