/// <summary>
/// 二項演算を構築
/// </summary>
/// <param name="pos">ファイル位置</param>
/// <param name="op_type">二項演算の種類</param>
/// <param name="lhs">左辺式</param>
/// <param name="rhs">右辺式</param>
public MBinOpExpr(string pos, BinOpType op_type, MExpr lhs, MExpr rhs)
: base(pos)
{
OpType = op_type;
Lhs = lhs;
Rhs = rhs;
}
public BinOpExpr(ParserRuleContext sourceLocation, BinOpType operation, IPExpr lhs, IPExpr rhs)
{
SourceLocation = sourceLocation;
Operation = operation;
Lhs = lhs;
Rhs = rhs;
if (IsArithmetic(operation))
{
Debug.Assert(Lhs.Type.IsSameTypeAs(Rhs.Type));
Type = Lhs.Type;
}
else
{
Type = PrimitiveType.Bool;
}
}
private string WriteBinOp(BinOpType operation)
{
switch (operation)
{
case BinOpType.Add:
return("+");
case BinOpType.Sub:
return("-");
case BinOpType.Mul:
return("*");
case BinOpType.Div:
return("/");
case BinOpType.Eq:
return("==");
case BinOpType.Neq:
return("!=");
case BinOpType.Lt:
return("<");
case BinOpType.Le:
return("<=");
case BinOpType.Gt:
return(">");
case BinOpType.Ge:
return(">=");
case BinOpType.And:
return("&&");
case BinOpType.Or:
return("||");
default:
throw new ArgumentOutOfRangeException(nameof(operation), operation, null);
}
}
public static string ToFriendlyString(this BinOpType me)
{
switch (me)
{
case BinOpType.Or:
return("|");
case BinOpType.And:
return("&");
case BinOpType.Plus:
return("+");
case BinOpType.Minus:
return("-");
case BinOpType.Prod:
return("*");
case BinOpType.Div:
return("/");
case BinOpType.Less:
return("<");
case BinOpType.LessOrEqual:
return("<=");
case BinOpType.Greater:
return(">");
case BinOpType.GreaterOrEqual:
return(">=");
case BinOpType.Equal:
return("==");
case BinOpType.NotEqual:
return("!=");
default:
return("ErrorBinOpType");
}
}
public BinExprNode(ExprNode left, ExprNode right, BinOpType type)
{
Left = left;
Right = right;
OpType = type;
}
public BinOp(BinOpType op, Exp lhs, Exp rhs)
{
Operator = op;
Lhs = lhs;
Rhs = rhs;
}
public SetOp(Pos tp, BinOpType _op) : base(tp)
{
type = _op;
}
private static bool IsArithmetic(BinOpType operation)
{
return(operation == BinOpType.Add || operation == BinOpType.Sub || operation == BinOpType.Mul ||
operation == BinOpType.Div);
}
public BinOpNode(ExprNode left, ExprNode right, BinOpType operation)
{
Left = left;
Right = right;
Op = operation;
}
