public static LNode QuoteOne(LNode node, bool substitutions)
{
if (node.Equals(LNode.InParensTrivia))
{
return(LNode_InParensTrivia);
}
if (node.Equals(LNode.Missing))
{
return(LNode_Missing);
}
VList <LNode> creationArgs = new VList <LNode>();
// Translate attributes (if any)
var attrList = MaybeQuoteList(node.Attrs, substitutions);
if (attrList != null)
{
creationArgs.Add(attrList);
}
LNode result;
switch (node.Kind)
{
case LNodeKind.Literal: // => F.Literal(value)
creationArgs.Add(node.WithoutAttrs());
result = F.Call(LNode_Literal, creationArgs);
break;
case LNodeKind.Id: // => F.Id(string), F.Id(CodeSymbols.Name)
creationArgs.Add(QuoteSymbol(node.Name));
result = F.Call(LNode_Id, creationArgs);
break;
default: // NodeKind.Call => F.Dot(...), F.Of(...), F.Call(...), F.Braces(...)
if (substitutions && node.Calls(S.Substitute, 1))
{
result = node.Args[0];
if (attrList != null)
{
if (result.IsCall)
{
result = LNode.InParens(result);
}
result = F.Call(F.Dot(result, Id_PlusAttrs), attrList);
}
} /*else if (node.Calls(S.Braces)) // F.Braces(...)
* result = F.Call(LNode_Braces, node.Args.SmartSelect(arg => QuoteOne(arg, substitutions)));
* else if (node.Calls(S.Dot) && node.ArgCount.IsInRange(1, 2))
* result = F.Call(LNode_Dot, node.Args.SmartSelect(arg => QuoteOne(arg, substitutions)));
* else if (node.Calls(S.Of))
* result = F.Call(LNode_Of, node.Args.SmartSelect(arg => QuoteOne(arg, substitutions)));*/
else // General case: F.Call(<Target>, <Args>)
{
if (node.Target.IsId)
{
creationArgs.Add(QuoteSymbol(node.Name));
}
else
{
creationArgs.Add(QuoteOne(node.Target, substitutions));
}
var argList = MaybeQuoteList(node.Args, substitutions);
if (argList != null)
{
creationArgs.Add(argList);
}
result = F.Call(LNode_Call, creationArgs);
}
// Note: don't preserve prefix notation because if $op is +,
// we want $op(x, y) to generate code for x + y (there is no
// way to express this with infix notation.)
if (node.BaseStyle != NodeStyle.Default && node.BaseStyle != NodeStyle.PrefixNotation)
{
result = F.Call(F.Dot(result, F.Id("SetStyle")), F.Dot(F.Id("NodeStyle"), F.Id(node.BaseStyle.ToString())));
}
break;
}
return(result);
}