public override void ParseNode(ref Node node, out TokenWalker.StateWalker walk, TokenWalker walker, ParseResultHistory resultHistory)
{
TokenWalker LocalWalker = new TokenWalker(walker);
TokenWalker.StateWalker localWalk = LocalWalker.State;
Debug.WriteLine(Parsers.Node.Program.ToStringRecursively(highlighted: this, enableHighlighting: false));
while (!LocalWalker.IsLast())
{
try
{
this.Parser.ParseNode(ref node, out localWalk, LocalWalker, resultHistory);
}
catch (Failure)
{
resultHistory.AddResult(new FailedParsingResult(walker.Location, this));
throw;
}
catch (Success)
{
localWalk(LocalWalker);
LocalWalker.SkipWhitespace();
continue;
}
}
walk = LocalWalker.State;
resultHistory.AddResult(new SuccessfulParsingResult(walker.To(localWalk), this));
throw Succeded;
}
public override void ParseNode(ref Node node, out TokenWalker.StateWalker walk, TokenWalker walker, ParseResultHistory resultHistory)
{
TokenWalker LocalWalker = new TokenWalker(walker);
TokenWalker.StateWalker localWalk = LocalWalker.State;
foreach (NodeParser parser in this.Parsers)
{
try
{
parser.ParseNode(ref node, out localWalk, LocalWalker, resultHistory);
}
catch (Failure)
{
continue;
}
catch (Success)
{
localWalk(LocalWalker);
walk = localWalk;
resultHistory.AddResult(new SuccessfulParsingResult(walker.To(localWalk), this));
throw;
}
}
resultHistory.AddResult(new FailedParsingResult(walker.Location, this));
throw Failed;
}
public SourceContext To(StateWalker otherWalker)
{
TokenWalker other = new TokenWalker(this);
otherWalker(other);
return(this.To(other));
}
public override void ParseNode(ref Node node, out TokenWalker.StateWalker walk, TokenWalker walker, ParseResultHistory resultHistory)
{
TokenWalker LocalWalker = new TokenWalker(walker);
TokenWalker.StateWalker localWalk = LocalWalker.State;
while (true)
{
try
{
this.Parser.ParseNode(ref node, out localWalk, LocalWalker, resultHistory);
}
catch (Failure)
{
resultHistory.AddResult(new SuccessfulParsingResult(walker.To(localWalk), this));
throw Succeded;
}
catch (Success)
{
localWalk(LocalWalker);
walk = localWalk;
continue;
}
throw new ParserException("Parser didnt specifiy if it succeded or not");
}
}
public override void ParseNode(ref Node node, out TokenWalker.StateWalker walk, TokenWalker walker, ParseResultHistory resultHistory)
{
TokenWalker LocalWalker = new TokenWalker(walker);
walk = LocalWalker.State;
this.parserReference().ParseNode(ref node, out walk, LocalWalker, resultHistory);
}
public override void ParseNode(ref Node node, out TokenWalker.StateWalker walk, TokenWalker walker, ParseResultHistory resultHistory)
{
TokenWalker LocalWalker = new TokenWalker(walker);
TokenWalker.StateWalker localWalk = LocalWalker.State;
List <Node> parsedNodes = new List <Node>();
while (true)
{
Node parsedNode = null;
try
{
this.Parser.ParseNode(ref parsedNode, out localWalk, LocalWalker, resultHistory);
}
catch (Failure)
{
break;
}
catch (Success)
{
localWalk(LocalWalker);
if (parsedNode != null)
{
parsedNodes.Add(parsedNode);
}
else
{
resultHistory.AddResult(new FailedParsingResult(walker.Location, this));
throw Failed;
}
}
}
if (!this.allowEmpty && parsedNodes.Count == 0)
{
resultHistory.AddResult(new FailedParsingResult(walker.Location, this));
throw Failed;
}
node = new ManyNode(parsedNodes, walker.To(LocalWalker));
walk = localWalk;
resultHistory.AddResult(new SuccessfulParsingResult(walker.To(localWalk), this));
throw Succeded;
}
public override void ParseNode(ref Node node, out TokenWalker.StateWalker walk, TokenWalker walker, ParseResultHistory resultHistory)
{
TokenWalker LocalWalker = new TokenWalker(walker);
TokenWalker.StateWalker localWalk = LocalWalker.State;
List <Node> parsedNodes = new List <Node>();
foreach (NodeParser parser in this.Parsers)
{
Node parsedNode = null;
try
{
parser.ParseNode(ref parsedNode, out localWalk, LocalWalker, resultHistory);
}
catch (Failure)
{
continue;
}
catch (Success)
{
localWalk(LocalWalker);
if (parsedNode != null)
{
parsedNodes.Add(parsedNode);
}
else
{
throw new Exception("Parser succeeded but no node was parsed");
}
}
}
if (parsedNodes.Count == 1)
{
var parsedNode = parsedNodes[0];
node = new UnaryNode(this.type, parsedNode, node, node.Context.To(parsedNode.Context));
walk = localWalk;
resultHistory.AddResult(new SuccessfulParsingResult(walker.To(localWalk), this));
throw Succeded;
}
resultHistory.AddResult(new FailedParsingResult(walker.Location, this));
throw Failed;
}
public override void ParseNode(ref Node node, out TokenWalker.StateWalker walk, TokenWalker walker, ParseResultHistory resultHistory)
{
TokenWalker LocalWalker = new TokenWalker(walker);
TokenWalker.StateWalker localWalk = LocalWalker.State;
List <Node> parsedNodes = new List <Node>();
foreach (NodeParser parser in this.Parsers)
{
Node parsedNode = null;
try
{
parser.ParseNode(ref parsedNode, out localWalk, LocalWalker, resultHistory);
}
catch (Failure)
{
continue;
}
catch (Success)
{
localWalk(LocalWalker);
walk = localWalk;
if (parsedNode != null)
{
parsedNodes.Add(parsedNode);
}
}
}
if (parsedNodes.Count == 2)
{
Node left = node;
Node binaryModifier = parsedNodes[0];
Node right = parsedNodes[1];
SourceContext binaryNodeContext = left.Context.To(right);
node = new BinaryNode(this.type, left, binaryModifier, right, binaryNodeContext);
resultHistory.AddResult(new SuccessfulParsingResult(binaryNodeContext, this));
throw Succeded;
}
resultHistory.AddResult(new FailedParsingResult(walker.Location, this));
throw Failed;
}
public override void ParseNode(ref Node node, out TokenWalker.StateWalker walk, TokenWalker walker, ParseResultHistory resultHistory)
{
TokenWalker LocalWalker = new TokenWalker(walker);
TokenWalker.StateWalker localWalk = LocalWalker.State;
if (LocalWalker.TryGetNext(out Token token, this.Keywords))
{
var walked = walker.To(LocalWalker);
localWalk(LocalWalker);
node = new TokenNode(token, walked);
walk = localWalk;
resultHistory.AddResult(new SuccessfulParsingResult(walker.To(localWalk), this));
throw Succeded;
}
resultHistory.AddResult(new FailedParsingResult(walker.Location, this));
throw Failed;
}
public void Parse(ref Node node, TokenWalker walker, out ParseResultHistory resultHistory)
{
StateWalker walk = null;
resultHistory = new ParseResultHistory();
try
{
this.ParseNode(ref node, out walk, walker, resultHistory);
}
catch (Success)
{
walk(walker);
if (node is null)
{
throw new FailedParsingNodeException("Success, but result node is empty");
}
}
catch (Failure)
{
throw new FailedParsingNodeException($"Failed parsing node");
}
}
public override void ParseNode(ref Node node, out TokenWalker.StateWalker walk, TokenWalker walker, ParseResultHistory resultHistory)
{
TokenWalker LocalWalker = new TokenWalker(walker);
TokenWalker.StateWalker localWalk = LocalWalker.State;
List <Node> parsedNodes = new List <Node>();
foreach (NodeParser parser in this.Parsers)
{
Node parsedNode = null;
try
{
parser.ParseNode(ref parsedNode, out localWalk, LocalWalker, resultHistory);
}
catch (Failure)
{
resultHistory.AddResult(new FailedParsingResult(walker.Location, this));
throw;
}
catch (Success)
{
if (parsedNode != null)
{
parsedNodes.Add(parsedNode);
}
localWalk(LocalWalker);
continue;
}
}
walk = localWalk;
var context = walker.To(walk);
node = new ManyNode(parsedNodes, context);
resultHistory.AddResult(new SuccessfulParsingResult(context, this));
throw Succeded;
}
public override void ParseNode(ref Node node, out TokenWalker.StateWalker walk, TokenWalker walker, ParseResultHistory resultHistory)
{
TokenWalker LocalWalker = new TokenWalker(walker);
TokenWalker.StateWalker localWalk = LocalWalker.State;
try
{
this.Parser.ParseNode(ref node, out localWalk, LocalWalker, resultHistory);
}
catch (Failure)
{
}
catch (Success)
{
localWalk(LocalWalker);
walk = localWalk;
resultHistory.AddResult(new SuccessfulParsingResult(walker.To(localWalk), this));
}
throw Succeded;
}
public SourceContext To(TokenWalker other) => this.Location.To(other.Location);
public TokenWalker(TokenWalker walker)
{
this.streamReference = walker.streamReference;
this.CurrentElement = walker.CurrentElement;
}
public abstract void ParseNode(ref Node node, out TokenWalker.StateWalker walk, TokenWalker walker, ParseResultHistory resultHistory);
public static void Parse(ref Parsing.Node node, TokenWalker walker, out ParseResultHistory resultHistory) => Program.Parse(ref node, walker, out resultHistory);