public IrBinop(AstBinop.OP b, IrExp l, IrExp r)
{
left = l;
right = r;
switch (b)
{
case AstBinop.OP.ADD: op = OP.ADD; break;
case AstBinop.OP.SUB: op = OP.SUB; break;
case AstBinop.OP.MUL: op = OP.MUL; break;
case AstBinop.OP.DIV: op = OP.DIV; break;
case AstBinop.OP.AND: op = OP.AND; break;
case AstBinop.OP.OR: op = OP.OR; break;
default: Debug.Assert(false, "Encountered unknown binary operator: value = " + b.ToString()); break;
}
}
// Binop ---
// int op;
// Exp e1, e2;
public IrExp visit(AstBinop n)
{
IrExp l = n.e1.accept(this);
IrExp r = n.e2.accept(this);
return new IrBinop(n.op, l, r);
}
public AstType visit(AstBinop n)
{
return null;
}
/* throws ParseException */
/* final */
public static AstExp astExp()
{
AstType t;
AstToken n;
AstRelop.OP relop;
AstBinop.OP binop;
AstUnop.OP unop;
AstExp e, e1, e2;
AstExpList el;
jj_consume_token(AstRegExpId.kw56);
switch ((jj_ntk == AstRegExpId.UNDEFINED)?jj_ntk_fn():jj_ntk) {
case AstRegExpId.kwArrayElm:
jj_consume_token(AstRegExpId.kwArrayElm);
e1 = astExp();
e2 = astExp();
e = new AstArrayElm(e1,e2);
break;
case AstRegExpId.kwArrayLen:
jj_consume_token(AstRegExpId.kwArrayLen);
e1 = astExp();
e = new AstArrayLen(e1);
break;
case AstRegExpId.kwBinop:
jj_consume_token(AstRegExpId.kwBinop);
binop = binOp();
e1 = astExp();
e2 = astExp();
e = new AstBinop(binop,e1,e2);
break;
case AstRegExpId.kwBoolVal:
jj_consume_token(AstRegExpId.kwBoolVal);
switch ((jj_ntk == AstRegExpId.UNDEFINED)?jj_ntk_fn():jj_ntk) {
case AstRegExpId.kwTrue:
jj_consume_token(AstRegExpId.kwTrue);
e = new AstBoolVal(true);
break;
case AstRegExpId.kwFalse:
jj_consume_token(AstRegExpId.kwFalse);
e = new AstBoolVal(false);
break;
default:
jj_la1[12] = jj_gen;
jj_consume_token(AstRegExpId.UNDEFINED);
throw new AstParseException();
}
break;
case AstRegExpId.kwCall:
jj_consume_token(AstRegExpId.kwCall);
e1 = astExp();
e2 = astExp();
el = astExpList();
e = new AstCall(e1,(AstId)e2,el);
break;
case AstRegExpId.kwId:
jj_consume_token(AstRegExpId.kwId);
n = jj_consume_token(AstRegExpId.ID);
e = new AstId(n.image);
break;
case AstRegExpId.kwIntVal:
jj_consume_token(AstRegExpId.kwIntVal);
n = jj_consume_token(AstRegExpId.INTVAL);
e = new AstIntVal(int.Parse(n.image));
break;
case AstRegExpId.kwField:
jj_consume_token(AstRegExpId.kwField);
e1 = astExp();
e2 = astExp();
e = new AstField(e1,(AstId)e2);
break;
case AstRegExpId.kwNewArray:
jj_consume_token(AstRegExpId.kwNewArray);
t = astType();
n = jj_consume_token(AstRegExpId.INTVAL);
e = new AstNewArray((AstType)t, int.Parse(n.image));
break;
case AstRegExpId.kwNewObj:
jj_consume_token(AstRegExpId.kwNewObj);
e1 = astExp();
el = astExpList();
e = new AstNewObj((AstId)e1,el);
break;
case AstRegExpId.kwRelop:
jj_consume_token(AstRegExpId.kwRelop);
relop = relOp();
e1 = astExp();
e2 = astExp();
e = new AstRelop(relop, e1, e2);
break;
case AstRegExpId.kwStrVal:
jj_consume_token(AstRegExpId.kwStrVal);
n = jj_consume_token(AstRegExpId.STRVAL);
String s = n.image;
e = new AstStrVal(s.Substring(1, s.Length-2));
break;
case AstRegExpId.kwThis:
jj_consume_token(AstRegExpId.kwThis);
e = new AstThis();
break;
case AstRegExpId.kwUnop:
jj_consume_token(AstRegExpId.kwUnop);
unop = unOp();
e1 = astExp();
e = new AstUnop(unop,e1);
break;
case AstRegExpId.kwNullExp:
jj_consume_token(AstRegExpId.kwNullExp);
e = null;
break;
default:
jj_la1[13] = jj_gen;
jj_consume_token(AstRegExpId.UNDEFINED);
throw new AstParseException();
}
jj_consume_token(AstRegExpId.kw57);
{if (true) return e;}
throw new Error("Missing return statement in function");
}
private bool isArithOp(AstBinop.OP op)
{
return (AstBinop.OP.ADD <= op) && (op <= AstBinop.OP.DIV);
}
/* throws Exception */
// Binop ---
// int op;
// Exp e1, e2;
public AstType visit(AstBinop n)
{
AstType t1 = n.e1.accept(this);
AstType t2 = n.e2.accept(this);
if (isArithOp(n.op))
{
if (isIntType(t1) && isIntType(t2))
return IntType;
}
else if (isBoolType(t1) && isBoolType(t2))
{
return BoolType;
}
throw new TypeException("Binop operands' type mismatch: " + t1 + n.opName(n.op) + t2);
}
/* throws ParseException */
// ----------------------------------------------------------------
// ArithTail -> [ ( "+" | "-" ) Term ArithTail ]
// ----------------------------------------------------------------
/* final */
public static AstExp ArithTail(AstExp e0)
{
AstExp e1 = null;
AstExp e2 = null;
DemiTasse.ast.AstBinop.OP op;
switch ((jj_ntk == MpRegExpId.UNDEFINED) ? jj_ntk_fn() : jj_ntk)
{
case MpRegExpId.ADD:
switch ((jj_ntk == MpRegExpId.UNDEFINED) ? jj_ntk_fn() : jj_ntk)
{
case MpRegExpId.ADD:
jj_consume_token(MpRegExpId.ADD);
op = DemiTasse.ast.AstBinop.OP.ADD;
break;
case MpRegExpId.SUB:
jj_consume_token(MpRegExpId.SUB);
op = DemiTasse.ast.AstBinop.OP.SUB;
break;
default:
jj_la1[30] = jj_gen;
jj_consume_token(MpRegExpId.UNDEFINED);
throw new MiniParseException();
}
e1 = Term();
e1 = new AstBinop(op, e0, e1);
e2 = ArithTail(e1);
break;
case MpRegExpId.SUB:
switch ((jj_ntk == MpRegExpId.UNDEFINED) ? jj_ntk_fn() : jj_ntk)
{
case MpRegExpId.ADD:
jj_consume_token(MpRegExpId.ADD);
op = DemiTasse.ast.AstBinop.OP.ADD;
break;
case MpRegExpId.SUB:
jj_consume_token(MpRegExpId.SUB);
op = DemiTasse.ast.AstBinop.OP.SUB;
break;
default:
jj_la1[30] = jj_gen;
jj_consume_token(MpRegExpId.UNDEFINED);
throw new MiniParseException();
}
e1 = Term();
e1 = new AstBinop( op, e0, e1 );
e2 = ArithTail(e1);
break;
default:
jj_la1[31] = jj_gen;
break;
}
return e2 == null ? e1 : e2;
}
/* throws ParseException */
// ----------------------------------------------------------------
// TermTail -> ("*" | "/" ) Factor TermTail
// ----------------------------------------------------------------
/* final */
public static AstExp TermTail(AstExp e0)
{
AstExp e1 = null;
AstExp e2 = null;
DemiTasse.ast.AstBinop.OP op;
switch ((jj_ntk == MpRegExpId.UNDEFINED) ? jj_ntk_fn() : jj_ntk)
{
case MpRegExpId.MUL:
switch ((jj_ntk == MpRegExpId.UNDEFINED) ? jj_ntk_fn() : jj_ntk)
{
case MpRegExpId.MUL:
jj_consume_token(MpRegExpId.MUL);
op = DemiTasse.ast.AstBinop.OP.MUL;
break;
case MpRegExpId.DIV:
jj_consume_token(MpRegExpId.DIV);
op = DemiTasse.ast.AstBinop.OP.DIV;
break;
default:
jj_la1[32] = jj_gen;
jj_consume_token(MpRegExpId.UNDEFINED);
throw new MiniParseException();
}
e1 = Factor();
e1 = new AstBinop(op, e0, e1);
e2 = TermTail(e1);
break;
case MpRegExpId.DIV:
switch ((jj_ntk == MpRegExpId.UNDEFINED) ? jj_ntk_fn() : jj_ntk)
{
case MpRegExpId.MUL:
jj_consume_token(MpRegExpId.MUL);
op = DemiTasse.ast.AstBinop.OP.MUL;
break;
case MpRegExpId.DIV:
jj_consume_token(MpRegExpId.DIV);
op = DemiTasse.ast.AstBinop.OP.DIV;
break;
default:
jj_la1[32] = jj_gen;
jj_consume_token(MpRegExpId.UNDEFINED);
throw new MiniParseException();
}
e1 = Factor();
e1 = new AstBinop( op, e0, e1 );
e2 = TermTail(e1);
break;
default:
jj_la1[33] = jj_gen;
break;
}
return e2 == null ? e1 : e2;
}
/* throws ParseException */
// ----------------------------------------------------------------
// AndTail -> [ "&&" RelExpr AndTail ]
// ----------------------------------------------------------------
/* final */
public static AstExp AndTail(AstExp e0)
{
AstExp e1 = null;
AstExp e2 = null;
switch ((jj_ntk == MpRegExpId.UNDEFINED) ? jj_ntk_fn() : jj_ntk)
{
case MpRegExpId.AND:
jj_consume_token(MpRegExpId.AND);
e1 = RelExpr();
e1 = new AstBinop(DemiTasse.ast.AstBinop.OP.AND, e0, e1);
e2 = AndTail(e1);
break;
default:
jj_la1[28] = jj_gen;
break;
}
return e2 == null ? e1 : e2;
}