package IR;

public class Operation {
  public static final int LOGIC_OR=1;
  public static final int LOGIC_AND=2;
  public static final int BIT_OR=3;
  public static final int BIT_XOR=4;
  public static final int BIT_AND=5;
  public static final int EQUAL=6;
  public static final int NOTEQUAL=7;
  public static final int LT=8;
  public static final int GT=9;
  public static final int LTE=10;
  public static final int GTE=11;
  public static final int LEFTSHIFT=12;
  public static final int RIGHTSHIFT=13;
  public static final int SUB=14;
  public static final int ADD=15;
  public static final int MULT=16;
  public static final int DIV=17;
  public static final int MOD=18;
  public static final int UNARYPLUS=19;
  public static final int UNARYMINUS=20;
  public static final int POSTINC=21;
  public static final int POSTDEC=22;
  public static final int PREINC=23;
  public static final int PREDEC=24;
  public static final int LOGIC_NOT=25;
  public static final int ISAVAILABLE=26;
  public static final int URIGHTSHIFT=27;
  public static final int COMP=28;
  /* Flat Operations */
  public static final int ASSIGN=100;

  private int operation;
  public Operation(int op) {
    this.operation=op;
  }

  public Operation(String op) {
    this.operation=parseOp(op);
  }

  public int getOp() {
    return operation;
  }

  public static int parseOp(String st) {
    if (st.equals("logical_or"))
      return LOGIC_OR;
    else if (st.equals("logical_and"))
      return LOGIC_AND;
    else if (st.equals("bitwise_or"))
      return BIT_OR;
    else if (st.equals("bitwise_xor"))
      return BIT_XOR;
    else if (st.equals("bitwise_and"))
      return BIT_AND;
    else if (st.equals("equal"))
      return EQUAL;
    else if (st.equals("not_equal"))
      return NOTEQUAL;
    else if (st.equals("comp_lt"))
      return LT;
    else if (st.equals("comp_gt"))
      return GT;
    else if (st.equals("comp_lte"))
      return LTE;
    else if (st.equals("comp_gte"))
      return GTE;
    else if (st.equals("leftshift"))
      return LEFTSHIFT;
    else if (st.equals("rightshift"))
      return RIGHTSHIFT;
    else if (st.equals("urightshift"))
      return URIGHTSHIFT;
    else if (st.equals("sub"))
      return SUB;
    else if (st.equals("add"))
      return ADD;
    else if (st.equals("mult"))
      return MULT;
    else if (st.equals("div"))
      return DIV;
    else if (st.equals("mod"))
      return MOD;
    else if (st.equals("unaryplus"))
      return UNARYPLUS;
    else if (st.equals("unaryminus"))
      return UNARYMINUS;
    else if (st.equals("postinc"))
      return POSTINC;
    else if (st.equals("postdec"))
      return POSTDEC;
    else if (st.equals("preinc"))
      return PREINC;
    else if (st.equals("predec"))
      return PREDEC;
    else if (st.equals("not"))
      return LOGIC_NOT;
    else if (st.equals("comp"))
      return COMP;
    else
      throw new Error(st);
  }

  public String toString() {
    if (operation==LOGIC_OR)
      return "||";
    else if (operation==LOGIC_AND)
      return "&&";
    else if (operation==LOGIC_NOT)
      return "not";
    else if (operation==COMP)
      return "~";
    else if (operation==BIT_OR)
      return "|";
    else if (operation==BIT_XOR)
      return "^";
    else if (operation==BIT_AND)
      return "&";
    else if (operation==EQUAL)
      return "==";
    else if (operation==NOTEQUAL)
      return "!=";
    else if (operation==LT)
      return "<";
    else if (operation==GT)
      return ">";
    else if (operation==LTE)
      return "<=";
    else if (operation==GTE)
      return ">=";
    else if (operation==LEFTSHIFT)
      return "<<";
    else if (operation==RIGHTSHIFT)
      return ">>";
    else if (operation==URIGHTSHIFT)
      return ">>>";
    else if (operation==SUB)
      return "-";
    else if (operation==ADD)
      return "+";
    else if (operation==MULT)
      return "*";
    else if (operation==DIV)
      return "/";
    else if (operation==MOD)
      return "%";
    else if (operation==UNARYPLUS)
      return "unaryplus";
    else if (operation==UNARYMINUS)
      return "unaryminus";
    else if (operation==POSTINC)
      return "postinc";
    else if (operation==POSTDEC)
      return "postdec";
    else if (operation==PREINC)
      return "preinc";
    else if (operation==PREDEC)
      return "predec";
    else if (operation==ASSIGN)
      return "assign";
    else if (operation==ISAVAILABLE)
      return "isavailable";
    else throw new Error("op="+operation);
  }


}