private static TempNode Parse(IEnumerator<Token> e)
{
if (e.Current.Type == TokenType.Identifier)
{
var node = new TempNode { Type = AstNodeType.Identifier, Value = e.Current.Value };
e.MoveNext();
node.AddNode(Parse(e));
return node;
}
if (e.Current.Type == TokenType.Dot)
{
var callNode = new TempNode { Type = AstNodeType.Call };
callNode.AddNode(ParseCallNode(e));
return callNode;
}
if (e.Current.Type == TokenType.String || e.Current.Type == TokenType.Number)
{
return new TempNode { Type = AstNodeType.Literal, Value = e.Current.Value };
}
if (e.MoveNext())
return Parse(e);
return null;
}
private static TempNode Parse(IEnumerator <Token> e)
{
if (e.Current.Type == TokenType.Identifier)
{
var node = new TempNode {
Type = AstNodeType.Identifier, Value = e.Current.Value
};
e.MoveNext();
node.AddNode(Parse(e));
return(node);
}
if (e.Current.Type == TokenType.Dot)
{
var callNode = new TempNode {
Type = AstNodeType.Call
};
callNode.AddNode(ParseCallNode(e));
return(callNode);
}
if (e.Current.Type == TokenType.String || e.Current.Type == TokenType.Number)
{
return(new TempNode {
Type = AstNodeType.Literal, Value = e.Current.Value
});
}
if (e.MoveNext())
{
return(Parse(e));
}
return(null);
}
public void AddNode(TempNode node)
{
if (node != null)
{
_nodes.Add(node);
}
}
private static void ParseArguments(IEnumerator<Token> e, TempNode methodNode)
{
e.MoveNext();
while (e.Current.Type != TokenType.CloseParen)
{
methodNode.AddNode(Parse(e));
e.MoveNext();
}
}
private static void ParseArguments(IEnumerator <Token> e, TempNode methodNode)
{
e.MoveNext();
while (e.Current.Type != TokenType.CloseParen)
{
methodNode.AddNode(Parse(e));
e.MoveNext();
}
}
private static TempNode ParseCallNode(IEnumerator<Token> e)
{
TempNode currentNode;
e.MoveNext();
string identifier = e.Current.Value.ToString();
e.MoveNext();
if (e.Current.Type == TokenType.OpenParen)
{
currentNode = new TempNode { Type = AstNodeType.Method, Value = identifier };
ParseArguments(e, currentNode);
}
else
{
currentNode = new TempNode { Type = AstNodeType.PropertyGetter, Value = identifier };
}
return currentNode;
}
private static TempNode ParseCallNode(IEnumerator <Token> e)
{
TempNode currentNode;
e.MoveNext();
string identifier = e.Current.Value.ToString();
e.MoveNext();
if (e.Current.Type == TokenType.OpenParen)
{
currentNode = new TempNode {
Type = AstNodeType.Method, Value = identifier
};
ParseArguments(e, currentNode);
}
else
{
currentNode = new TempNode {
Type = AstNodeType.PropertyGetter, Value = identifier
};
}
return(currentNode);
}
public void AddNode(TempNode node)
{
if (node != null)
_nodes.Add(node);
}