Mode = MacroMode.ProcessChildrenBefore)] // post-normal-macro-expansion
public static LNode with(LNode fn, IMessageSink sink)
{
LNode braces;
if (fn.ArgCount != 2 || !(braces = fn.Args[1]).Calls(S.Braces))
{
return(null);
}
LNode tmp = F.Id(NextTempName());
WList <LNode> stmts = braces.Args.ToWList();
stmts = stmts.SmartSelect(stmt =>
stmt.ReplaceRecursive(expr => {
if (expr.Calls(S.Dot, 1))
{
return(expr.WithArgs(new VList <LNode>(tmp, expr.Args.Last)));
}
return(null);
}));
stmts.Insert(0, F.Var(null, tmp.Name, fn.Args[0]));
return(F.Braces(stmts.ToVList()));
}
Mode = MacroMode.ProcessChildrenBefore)] // post-normal-macro-expansion
public static LNode with(LNode fn, IMacroContext context)
{
LNode braces;
if (fn.ArgCount != 2 || !(braces = fn.Args[1]).Calls(S.Braces))
{
return(null);
}
LNode tmp = F.Id(NextTempName(context));
WList <LNode> stmts = braces.Args.ToWList();
stmts = stmts.SmartSelect(stmt =>
stmt.ReplaceRecursive(expr => {
if (expr.Calls(S.Dot, 1))
{
return(expr.WithArgs(new VList <LNode>(tmp, expr.Args.Last)));
}
else if (expr.IsIdNamed("#"))
{
return(tmp);
}
return(null);
}));
stmts.Insert(0, F.Var(null, tmp.Name, fn.Args[0]));
if (IsExpressionContext(context))
{
stmts.Add(tmp);
return(F.Call("#runSequence", stmts.ToVList()));
}
else
{
return(F.Braces(stmts.ToVList()));
}
}