public RCIncrScalar GetIncr(long i)
{
RCIncr val = (RCIncr)Get(i);
if (val == null)
{
throw new Exception(string.Format("No value at index {0} within block (count:{1})",
i,
Count));
}
return(val[0]);
}
public RCIncrScalar GetIncr(string name)
{
RCIncr val = (RCIncr)Get(name);
if (val == null)
{
throw new Exception("Required value " + name + " not found in block");
}
else
{
return(val[0]);
}
}
public RCIncrScalar GetIncr(string name, RCIncrScalar def)
{
RCIncr val = (RCIncr)Get(name);
if (val == null)
{
return(def);
}
else
{
return(val[0]);
}
}
/*
* protected Type InferType(string[] name, string original)
* {
* //Let's try to figure it out!
* RCValue target = null;
*
* //Try the block under construction.
* if (_block != null)
* {
* target = _block.Get(name);
* }
*
* //Try to find it higher up the stack.
* if (target == null)
* {
* RCBlock[] parents = _blocks.ToArray();
* //When you ToArray the stack items come out in the same order
* //you would have taken them off the stack.
* for (int i = 0; i < parents.Length; ++i)
* {
* //There will be null blocks on the stack.
* if (parents[i] != null)
* {
* target = parents[i].Get(name);
* if (target != null) break;
* }
* }
* }
*
* if (target == null)
* {
* throw new Exception("Unable to infer type for reference " + original + ".");
* }
* else return target.Yields;
* }
*/
protected RCVectorBase MakeVector(RCArray <RCToken> vector)
{
RCVectorBase result = null;
if (vector[0].Text[0] == '~')
{
switch (vector[0].Text[1])
{
case 'x': return(RCByte.Empty);
case 'b': return(RCBoolean.Empty);
case 'l': return(RCLong.Empty);
case 'd': return(RCDouble.Empty);
case 'm': return(RCDecimal.Empty);
case 's': return(RCString.Empty);
case 'y': return(RCSymbol.Empty);
case 't': return(RCTime.Empty);
case 'n': return(RCIncr.Empty);
default: throw new Exception("Unrecognized type code: " + vector[0].Text[1]);
}
}
if (vector[0].Type == RCTokenType.Symbol)
{
RCArray <RCSymbolScalar> list = new RCArray <RCSymbolScalar> (vector.Count);
for (int i = 0; i < vector.Count; ++i)
{
list.Write(vector[i].ParseSymbol(_lexer));
}
result = new RCSymbol(list);
}
else if (vector[0].Type == RCTokenType.String)
{
RCArray <string> list = new RCArray <string> (vector.Count);
for (int i = 0; i < vector.Count; ++i)
{
list.Write(vector[i].ParseString(_lexer));
}
result = new RCString(list);
}
else if (vector[0].Type == RCTokenType.Boolean)
{
RCArray <bool> list = new RCArray <bool> (vector.Count);
for (int i = 0; i < vector.Count; ++i)
{
list.Write(vector[i].ParseBoolean(_lexer));
}
result = new RCBoolean(list);
}
else if (vector[0].Type == RCTokenType.Incr)
{
RCArray <RCIncrScalar> list = new RCArray <RCIncrScalar> (vector.Count);
for (int i = 0; i < vector.Count; ++i)
{
list.Write(vector[i].ParseIncr(_lexer));
}
result = new RCIncr(list);
}
else if (vector[0].Type == RCTokenType.Literal)
{
char type = vector[0].Text[1];
switch (type)
{
case 'x':
RCArray <byte> list = new RCArray <byte> (vector.Count);
for (int i = 0; i < vector.Count; ++i)
{
list.Write(vector[i].ParseByte(_lexer));
}
result = new RCByte(list);
break;
default: throw new Exception("Unknown type specifier:" + type);
}
}
else if (vector[0].Type == RCTokenType.Time)
{
RCArray <RCTimeScalar> list = new RCArray <RCTimeScalar> (vector.Count);
for (int i = 0; i < vector.Count; ++i)
{
list.Write(vector[i].ParseTime(_lexer));
}
result = new RCTime(list);
}
else if (vector[0].Type == RCTokenType.Number)
{
// have a look at the last character in the last token
// if there is a type specifier there we will use it to
// create the appropriate type of vector.
RCToken last = vector[vector.Count - 1];
char type = last.Text[last.Text.Length - 1];
if (type == 'l')
{
RCArray <long> list = new RCArray <long> (vector.Count);
for (int i = 0; i < vector.Count; ++i)
{
list.Write(vector[i].ParseLong(_lexer));
}
result = new RCLong(list);
}
if (type == 'd')
{
RCArray <double> list = new RCArray <double> (vector.Count);
for (int i = 0; i < vector.Count; ++i)
{
list.Write(vector[i].ParseDouble(_lexer));
}
result = new RCDouble(list);
}
else if (type == 'm')
{
RCArray <decimal> list = new RCArray <decimal> (vector.Count);
for (int i = 0; i < vector.Count; ++i)
{
list.Write(vector[i].ParseDecimal(_lexer));
}
result = new RCDecimal(list);
}
else // default to double
{
if (vector[0].Text.IndexOf('.') > -1 || vector[0].Text == "NaN")
{
RCArray <double> list = new RCArray <double> (vector.Count);
for (int i = 0; i < vector.Count; ++i)
{
list.Write(vector[i].ParseDouble(_lexer));
}
result = new RCDouble(list);
}
else
{
RCArray <long> list = new RCArray <long> (vector.Count);
for (int i = 0; i < vector.Count; ++i)
{
list.Write(vector[i].ParseLong(_lexer));
}
result = new RCLong(list);
}
}
}
return(result);
}