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 int getOp() {
  29         return operation;
  30     }
  31
  32     public Operation getBaseOp() {
  33         switch(operation) {
  34         case EQ:
  35             return null;
  36         case MULTEQ:
  37             return new Operation(Operation.MULT);
  38         case DIVEQ:
  39             return new Operation(Operation.DIV);
  40         case MODEQ:
  41             return new Operation(Operation.MOD);
  42         case PLUSEQ:
  43             return new Operation(Operation.ADD);
  44         case MINUSEQ:
  45             return new Operation(Operation.SUB);
  46         case LSHIFTEQ:
  47             return new Operation(Operation.LEFTSHIFT);
  48         case RSHIFTEQ:
  49             return new Operation(Operation.RIGHTSHIFT);
  50         case URSHIFTEQ:
  51             return new Operation(Operation.URIGHTSHIFT);
  52         case ANDEQ:
  53             return new Operation(Operation.BIT_AND);
  54         case XOREQ:
  55             return new Operation(Operation.BIT_XOR);
  56         case OREQ:
  57             return new Operation(Operation.BIT_OR);
  58         case POSTINC:
  59             return new Operation(Operation.POSTINC);
  60         case POSTDEC:
  61             return new Operation(Operation.POSTDEC);
  62         }
  63         throw new Error();
  64     }
  65
  66     public static int parseOp(String st) {
  67         if (st.equals("eq"))
  68             return EQ;
  69         else if (st.equals("multeq"))
  70             return MULTEQ;
  71         else if (st.equals("diveq"))
  72             return DIVEQ;
  73         else if (st.equals("modeq"))
  74             return MODEQ;
  75         else if (st.equals("pluseq"))
  76             return PLUSEQ;
  77         else if (st.equals("minuseq"))
  78             return MINUSEQ;
  79         else if (st.equals("lshifteq"))
  80             return LSHIFTEQ;
  81         else if (st.equals("urshifteq"))
  82             return URSHIFTEQ;
  83         else if (st.equals("rshifteq"))
  84             return RSHIFTEQ;
  85         else if (st.equals("andeq"))
  86             return ANDEQ;
  87         else if (st.equals("xoreq"))
  88             return XOREQ;
  89         else if (st.equals("oreq"))
  90             return OREQ;
  91         else if (st.equals("postinc"))
  92             return POSTINC;
  93         else if (st.equals("postdec"))
  94             return POSTDEC;
  95         else throw new Error();
  96     }
  97
  98     public String toString() {
  99         if (operation==EQ)
 100             return "=";
 101         else if (operation==MULTEQ)
 102             return "*=";
 103         else if (operation==DIVEQ)
 104             return "/=";
 105         else if (operation==MODEQ)
 106             return "%=";
 107         else if (operation==PLUSEQ)
 108             return "+=";
 109         else if (operation==MINUSEQ)
 110             return "-=";
 111         else if (operation==LSHIFTEQ)
 112             return "<=";
 113         else if (operation==RSHIFTEQ)
 114             return ">=";
 115         else if (operation==RSHIFTEQ)
 116             return ">>=";
 117         else if (operation==ANDEQ)
 118             return "&=";
 119         else if (operation==XOREQ)
 120             return "^=";
 121         else if (operation==OREQ)
 122             return "|=";
 123         else if (operation==POSTINC)
 124             return "postinc";
 125         else if (operation==POSTDEC)
 126             return "postdec";
 127         else throw new Error();
 128     }
 129
 130
 131 }