Programming Languages Research Group: Git - IRC.git/blob

   1 package IR;
   2
   3 public class AssignOperation {
   4     public static final int EQ=1;
   5     public static final int MULTEQ=2;
   6     public static final int DIVEQ=3;
   7     public static final int MODEQ=4;
   8     public static final int PLUSEQ=5;
   9     public static final int MINUSEQ=6;
  10     public static final int LSHIFTEQ=7;
  11     public static final int RSHIFTEQ=8;
  12     public static final int URSHIFTEQ=9;
  13     public static final int ANDEQ=10;
  14     public static final int XOREQ=11;
  15     public static final int OREQ=12;
  16     public static final int POSTINC=13;
  17     public static final int POSTDEC=14;
  18
  19     private int operation;
  20     public AssignOperation(int op) {
  21         this.operation=op;
  22     }
  23
  24     public AssignOperation(String op) {
  25         this.operation=parseOp(op);
  26     }
  27
  28     public Operation getBaseOp() {
  29         switch(operation) {
  30         case EQ:
  31             return null;
  32         case MULTEQ:
  33             return new Operation(Operation.MULT);
  34         case DIVEQ:
  35             return new Operation(Operation.DIV);
  36         case MODEQ:
  37             return new Operation(Operation.MOD);
  38         case PLUSEQ:
  39             return new Operation(Operation.ADD);
  40         case MINUSEQ:
  41             return new Operation(Operation.SUB);
  42         case LSHIFTEQ:
  43             return new Operation(Operation.LEFTSHIFT);
  44         case RSHIFTEQ:
  45             return new Operation(Operation.RIGHTSHIFT);
  46         case ANDEQ:
  47             return new Operation(Operation.BIT_AND);
  48         case XOREQ:
  49             return new Operation(Operation.BIT_XOR);
  50         case OREQ:
  51             return new Operation(Operation.BIT_OR);
  52         case POSTINC:
  53             return new Operation(Operation.POSTINC);
  54         case POSTDEC:
  55             return new Operation(Operation.POSTDEC);
  56         }
  57         throw new Error();
  58     }
  59
  60     public static int parseOp(String st) {
  61         if (st.equals("eq"))
  62             return EQ;
  63         else if (st.equals("multeq"))
  64             return MULTEQ;
  65         else if (st.equals("diveq"))
  66             return DIVEQ;
  67         else if (st.equals("modeq"))
  68             return MODEQ;
  69         else if (st.equals("pluseq"))
  70             return PLUSEQ;
  71         else if (st.equals("minuseq"))
  72             return MINUSEQ;
  73         else if (st.equals("lshifteq"))
  74             return LSHIFTEQ;
  75         else if (st.equals("rshifteq"))
  76             return RSHIFTEQ;
  77         else if (st.equals("andeq"))
  78             return ANDEQ;
  79         else if (st.equals("xoreq"))
  80             return XOREQ;
  81         else if (st.equals("oreq"))
  82             return OREQ;
  83         else if (st.equals("postinc"))
  84             return POSTINC;
  85         else if (st.equals("postdec"))
  86             return POSTDEC;
  87         else throw new Error();
  88     }
  89
  90     public String toString() {
  91         if (operation==EQ)
  92             return "=";
  93         else if (operation==MULTEQ)
  94             return "*=";
  95         else if (operation==DIVEQ)
  96             return "/=";
  97         else if (operation==MODEQ)
  98             return "%=";
  99         else if (operation==PLUSEQ)
 100             return "+=";
 101         else if (operation==MINUSEQ)
 102             return "-=";
 103         else if (operation==LSHIFTEQ)
 104             return "<=";
 105         else if (operation==RSHIFTEQ)
 106             return ">=";
 107         else if (operation==ANDEQ)
 108             return "&=";
 109         else if (operation==XOREQ)
 110             return "^=";
 111         else if (operation==OREQ)
 112             return "|=";
 113         else if (operation==POSTINC)
 114             return "postinc";
 115         else if (operation==POSTDEC)
 116             return "postdec";
 117         else throw new Error();
 118     }
 119
 120
 121 }