public String Print(FuncNode fnode)
{
if (fnode.arguments.Count == 0)
{
return(fnode.identifier + "(" + ")");
}
string str = Print(fnode.arguments[0]);
for (int i = 1; i < fnode.arguments.Count; i++)
{
str += "," + Print(fnode.arguments[i]);
}
return(fnode.identifier + "(" + str + ")");
}
public type GetType(FuncNode fnode, Environment env)
{
FuncType funcType = (FuncType)env.GetType(fnode.identifier);
List <ITreeNode> lexp = fnode.arguments;
List <type> ltype = funcType.inputTypes;
if (lexp.Count != ltype.Count)
{
throw new Exception("wrong number of arguments to function" + fnode.identifier);
}
for (int i = 0; i < ltype.Count; i++)
{
if (!ExpressionMatches(GetType(lexp[i], env), ltype[i]))
{
throw new Exception(lexp[i].ToString() + "is not of type " + ltype[i]);
}
}
return(funcType.outputType);
}
private string ConvertFuncNode(FuncNode fnode, Dictionary <string, int> variableIndex)
{
if (fnode.identifier.Equals("choice"))
{
return(ConvertChoice(fnode.arguments, variableIndex));
}
List <ITreeNode> args = fnode.arguments;
int size = args.Count;
if (args.Count == 0)
{
return("call " + fnode.identifier);
}
string str = "";
for (int i = args.Count - 1; i >= 0; i--)
{
str += Convert(args[i], variableIndex) + skip + "push eax" + skip;
}
return(ConvertToCode(str, "call " + fnode.identifier, "sub esp, " + 4 * args.Count) + skip);
}