Line data    Source code

       1              : /* valaccodeassignment.vala
       2              :  *
       3              :  * Copyright (C) 2006-2008  Jürg Billeter
       4              :  *
       5              :  * This library is free software; you can redistribute it and/or
       6              :  * modify it under the terms of the GNU Lesser General Public
       7              :  * License as published by the Free Software Foundation; either
       8              :  * version 2.1 of the License, or (at your option) any later version.
       9              : 
      10              :  * This library is distributed in the hope that it will be useful,
      11              :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      12              :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13              :  * Lesser General Public License for more details.
      14              : 
      15              :  * You should have received a copy of the GNU Lesser General Public
      16              :  * License along with this library; if not, write to the Free Software
      17              :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
      18              :  *
      19              :  * Author:
      20              :  *      Jürg Billeter <j@bitron.ch>
      21              :  */
      22              : 
      23              : using GLib;
      24              : 
      25              : /**
      26              :  * Represents an assignment expression in the C code.
      27              :  */
      28        82886 : public class Vala.CCodeAssignment : CCodeExpression {
      29              :         /**
      30              :          * Left hand side of the assignment.
      31              :          */
      32       246213 :         public CCodeExpression left { get; set; }
      33              : 
      34              :         /**
      35              :          * Assignment operator.
      36              :          */
      37        82071 :         public CCodeAssignmentOperator operator { get; set; }
      38              : 
      39              :         /**
      40              :          * Right hand side of the assignment.
      41              :          */
      42       246213 :         public CCodeExpression right { get; set; }
      43              : 
      44       246213 :         public CCodeAssignment (CCodeExpression l, CCodeExpression r, CCodeAssignmentOperator op = CCodeAssignmentOperator.SIMPLE) {
      45        82071 :                 left = l;
      46        82071 :                 operator = op;
      47        82071 :                 right = r;
      48              :         }
      49              : 
      50        80837 :         public override void write (CCodeWriter writer) {
      51        80837 :                 left.write (writer);
      52              : 
      53        80837 :                 switch (operator) {
      54        80760 :                 case CCodeAssignmentOperator.SIMPLE: writer.write_string (" = "); break;
      55            3 :                 case CCodeAssignmentOperator.BITWISE_OR: writer.write_string (" |= "); break;
      56            3 :                 case CCodeAssignmentOperator.BITWISE_AND: writer.write_string (" &= "); break;
      57            3 :                 case CCodeAssignmentOperator.BITWISE_XOR: writer.write_string (" ^= "); break;
      58           40 :                 case CCodeAssignmentOperator.ADD: writer.write_string (" += "); break;
      59            9 :                 case CCodeAssignmentOperator.SUB: writer.write_string (" -= "); break;
      60            5 :                 case CCodeAssignmentOperator.MUL: writer.write_string (" *= "); break;
      61            5 :                 case CCodeAssignmentOperator.DIV: writer.write_string (" /= "); break;
      62            3 :                 case CCodeAssignmentOperator.PERCENT: writer.write_string (" %= "); break;
      63            3 :                 case CCodeAssignmentOperator.SHIFT_LEFT: writer.write_string (" <<= "); break;
      64            3 :                 case CCodeAssignmentOperator.SHIFT_RIGHT: writer.write_string (" >>= "); break;
      65            0 :                 default: assert_not_reached ();
      66              :                 }
      67              : 
      68        80837 :                 right.write (writer);
      69              :         }
      70              : 
      71         1609 :         public override void write_inner (CCodeWriter writer) {
      72         1609 :                 writer.write_string ("(");
      73         1609 :                 this.write (writer);
      74         1609 :                 writer.write_string (")");
      75              :         }
      76              : }
      77              : 
      78              : public enum Vala.CCodeAssignmentOperator {
      79              :         SIMPLE,
      80              :         BITWISE_OR,
      81              :         BITWISE_AND,
      82              :         BITWISE_XOR,
      83              :         ADD,
      84              :         SUB,
      85              :         MUL,
      86              :         DIV,
      87              :         PERCENT,
      88              :         SHIFT_LEFT,
      89              :         SHIFT_RIGHT
      90              : }