/// <summary>
/// Ported from expr_t::op_t::dump
/// </summary>
public string Dump(int depth = 0)
{
StringBuilder sb = new StringBuilder(new string(' ', depth));
switch (Kind)
{
case OpKindEnum.VALUE:
sb.AppendFormat("VALUE: {0}", AsValue.Dump());
break;
case OpKindEnum.IDENT:
sb.AppendFormat("IDENT: {0}", AsIdent);
break;
case OpKindEnum.SCOPE:
sb.AppendFormat("SCOPE: {0}", IsScopeUnset ? "null" : AsScope.Description);
break;
case OpKindEnum.LAST:
throw new InvalidOperationException("assert(false)");
default:
sb.Append(Kind.ToString());
break;
}
sb.AppendLine(String.Format(" ({0})", 0 /* DM - no refc */));
// An identifier is a special non-terminal, in that its left() can
// hold the compiled definition of the identifier.
if (Kind > OpKindEnum.TERMINALS || IsScope || IsIdent)
{
if (Left != null)
{
sb.Append(Left.Dump(depth + 1));
if (Kind > OpKindEnum.UNARY_OPERATORS && HasRight)
{
sb.Append(Right.Dump(depth + 1));
}
}
else if (Kind > OpKindEnum.UNARY_OPERATORS)
{
if (HasRight)
{
throw new InvalidOperationException("assert(! has_right())");
}
}
}
return(sb.ToString());
}
public bool Print(ref string str, ExprOpContext context = null)
{
str = str ?? String.Empty;
context = context ?? new ExprOpContext();
bool found = false;
if (context.StartPos.HasValue && this == context.OpToFind)
{
context.StartPos = str.Length - 1;
found = true;
}
string symbol = null;
if (Kind > OpKindEnum.TERMINALS && (Kind != OpKindEnum.O_CALL && Kind != OpKindEnum.O_DEFINE))
{
str += '(';
}
switch (Kind)
{
case OpKindEnum.VALUE:
str += AsValue.Dump(context.Relaxed);
break;
case OpKindEnum.IDENT:
str += AsIdent;
break;
case OpKindEnum.FUNCTION:
str += "<FUNCTION>";
break;
case OpKindEnum.SCOPE:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_NOT:
str += "!";
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_NEG:
str += "- ";
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_ADD:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " + ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_SUB:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " - ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_MUL:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " * ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_DIV:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " / ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_EQ:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " == ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_LT:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " < ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_LTE:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " <= ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_GT:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " > ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_GTE:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " >= ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_AND:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " & ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_OR:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " | ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_QUERY:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " ? ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_COLON:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " : ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_CONS:
found = PrintCons(ref str, this, context);
break;
case OpKindEnum.O_SEQ:
found = PrintSeq(ref str, this, context);
break;
case OpKindEnum.O_DEFINE:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " = ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_LOOKUP:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += ".";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_LAMBDA:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " -> ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
case OpKindEnum.O_CALL:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
if (Right != null)
{
if (Right.Kind == OpKindEnum.O_CONS)
{
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
}
else
{
str += "(";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
str += ")";
}
}
else
{
str += "()";
}
break;
case OpKindEnum.O_MATCH:
if (Left != null && Left.Print(ref str, context))
{
found = true;
}
str += " =~ ";
if (Right != null && Right.Print(ref str, context))
{
found = true;
}
break;
default:
throw new InvalidOperationException();
}
if (Kind > OpKindEnum.TERMINALS && (Kind != OpKindEnum.O_CALL && Kind != OpKindEnum.O_DEFINE))
{
str += ')';
}
if (!String.IsNullOrEmpty(symbol))
{
if (CommodityPool.Current.Find(symbol) != null)
{
str += "@";
}
str += symbol;
}
if (context.EndPos.HasValue && this == context.OpToFind)
{
context.EndPos = str.Length - 1;
}
return(found);
}