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/* valaccodeassignment.vala
*
* Copyright (C) 2006-2008 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 assignment expression in the C code.
*/
public class Vala.CCodeAssignment : CCodeExpression {
/**
* Left hand side of the assignment.
*/
public CCodeExpression left { get; set; }
/**
* Assignment operator.
*/
public CCodeAssignmentOperator operator { get; set; }
/**
* Right hand side of the assignment.
*/
public CCodeExpression right { get; set; }
public CCodeAssignment (CCodeExpression l, CCodeExpression r, CCodeAssignmentOperator op = CCodeAssignmentOperator.SIMPLE) {
left = l;
operator = op;
right = r;
}
public override void write (CCodeWriter writer) {
left.write (writer);
switch (operator) {
case CCodeAssignmentOperator.SIMPLE: writer.write_string (" = "); break;
case CCodeAssignmentOperator.BITWISE_OR: writer.write_string (" |= "); break;
case CCodeAssignmentOperator.BITWISE_AND: writer.write_string (" &= "); break;
case CCodeAssignmentOperator.BITWISE_XOR: writer.write_string (" ^= "); break;
case CCodeAssignmentOperator.ADD: writer.write_string (" += "); break;
case CCodeAssignmentOperator.SUB: writer.write_string (" -= "); break;
case CCodeAssignmentOperator.MUL: writer.write_string (" *= "); break;
case CCodeAssignmentOperator.DIV: writer.write_string (" /= "); break;
case CCodeAssignmentOperator.PERCENT: writer.write_string (" %= "); break;
case CCodeAssignmentOperator.SHIFT_LEFT: writer.write_string (" <<= "); break;
case CCodeAssignmentOperator.SHIFT_RIGHT: writer.write_string (" >>= "); break;
default: assert_not_reached ();
}
right.write (writer);
}
public override void write_inner (CCodeWriter writer) {
writer.write_string ("(");
this.write (writer);
writer.write_string (")");
}
}
public enum Vala.CCodeAssignmentOperator {
SIMPLE,
BITWISE_OR,
BITWISE_AND,
BITWISE_XOR,
ADD,
SUB,
MUL,
DIV,
PERCENT,
SHIFT_LEFT,
SHIFT_RIGHT
}
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