public QuotedFunction(QuotedFunction first, QuotedFunction second)
{
mSubFxns = new CatExpr(first.GetSubFxns().ToArray());
mSubFxns.AddRange(second.GetSubFxns().ToArray());
msDesc = "anonymous composed function";
msName = "";
for (int i = 0; i < mSubFxns.Count; ++i)
{
if (i > 0)
{
msName += " ";
}
msName += mSubFxns[i].GetName();
}
try {
mpFxnType = new CatQuotedType(CatTypeReconstructor.ComposeTypes(first.GetFxnType(), second.GetFxnType()));
// TODO: remove once everythign tests okay.
//mpFxnType = new CatQuotedType(CatTypeReconstructor.ComposeTypes(first.GetUnquotedFxnType(), second.GetUnquotedFxnType()));
} catch (Exception e) {
Output.WriteLine("unable to type quotation: " + ToString());
Output.WriteLine("type error: " + e.Message);
mpFxnType = null;
}
}
public void AddFunctions(CatExpr fxns)
{
mFunctions.AddRange(fxns);
msDesc = "";
if (Config.gbVerboseInference && Config.gbTypeChecking)
{
Output.WriteLine("");
Output.WriteLine("inferring type of " + msName);
Output.WriteLine("===");
}
try {
mpFxnType = CatTypeReconstructor.Infer(mFunctions);
} catch (Exception e) {
Output.WriteLine("type error in function " + msName);
Output.WriteLine(e.Message);
mpFxnType = null;
}
}
public CatExpr PatternToFxns(INameLookup names, List <AstMacroTerm> pattern)
{
CatExpr ret = new CatExpr();
foreach (AstMacroTerm t in pattern)
{
if (t is AstMacroTypeVar)
{
string s = t.ToString();
if (!mCapturedVars.ContainsKey(s))
{
throw new Exception("macro variable " + s + " was not captured");
}
CatExpr expr = mCapturedVars[s];
ret.AddRange(expr);
}
else if (t is AstMacroStackVar)
{
string s = (t as AstMacroStackVar).msName;
if (!mCapturedVars.ContainsKey(s))
{
throw new Exception("macro variable " + s + " was not captured");
}
CatExpr expr = mCapturedVars[s];
ret.AddRange(expr);
}
else if (t is AstMacroName)
{
string s = t.ToString();
if (s.Length < 1)
{
throw new Exception("internal error: macro name is empty string");
}
Function f = names.ThrowingLookup(s);
if (f == null)
{
if (Char.IsDigit(s[0]))
{
f = new PushInt(int.Parse(s));
}
else
{
throw new Exception("Could not find function " + s);
}
}
ret.Add(f);
}
else if (t is AstMacroQuote)
{
// TODO: handle typed terms within a quotation.
AstMacroQuote macroQuote = t as AstMacroQuote;
List <AstMacroTerm> localPattern = macroQuote.mTerms;
PushFunction q = new PushFunction(PatternToFxns(names, localPattern));
ret.Add(q);
}
else
{
throw new Exception("unrecognized macro term " + t.ToString());
}
}
return(ret);
}
