public void AddRule(ParseNode_Rule rule)
{
var nt = rule.NtName;
if (m_dicNt2Rule.ContainsKey(nt))
{
throw new Exception(nt + ": duplicate");
}
m_dicNt2Rule.Add(nt, rule);
m_lsRule.Add(rule);
}
public void MoveToLine(int line, LR_SyntaxTree parseTree)
{
for (var prevLine = line - 1; prevLine >= 0; --prevLine)
{
var tokens = m_kTokenScanner.GetFormatedLine(prevLine).tokens;
for (var i = tokens.Count - 1; i >= 0; --i)
{
var token = tokens[i];
var leaf = token.m_kLinkedLeaf;
if (token.tokenKind == LexerToken.Kind.Missing)
{
if (token.m_kLinkedLeaf != null && token.m_kLinkedLeaf.Parent != null)
{
token.m_kLinkedLeaf.Parent.m_sSyntaxError = null;
}
tokens.RemoveAt(i);
continue;
}
if (leaf == null || leaf.ParseNode == null)
{
continue;
}
if (token.tokenKind < LexerToken.Kind.LastWSToken)
{
continue;
}
if (leaf.m_sSyntaxError != null)
{
ErrorToken = leaf;
ErrorMessage = leaf.m_sSyntaxError;
continue;
}
MoveAfterLeaf(leaf);
return;
}
}
//tokens = null;
//currentLine = -1;
//currentTokenIndex = -1;
m_kTokenScanner.Reset();
SyntaxRule_Cur = null;
ParseNode_Cur = null;
ErrorToken = null;
ErrorMessage = null;
SyntaxRule_Err = null;
ParseNode_Err = null;
m_kTokenScanner.MoveNext();
ParseNode_Rule startRule = Parser_CSharp.Instance.ParseRoot.Rule_Start;
SyntaxRule_Cur = parseTree.root; // = new ParseTree.Node(rootId);
ParseNode_Cur = startRule; //.Parse(pSyntaxTreeBuilder);
SyntaxRule_Err = SyntaxRule_Cur;
ParseNode_Err = ParseNode_Cur;
}
public bool CollectCompletions(TokenSet tokenSet, SyntaxTreeBuilder pSyntaxTreeBuilder, int identifierId)
{
var clone = pSyntaxTreeBuilder.Clone();
var hasName = false;
var current = this;
while (current != null && current.parent != null)
{
tokenSet.Add(current.FirstSet);
if (current.FirstSet.Contains(identifierId))
{
ParseNode_Rule currentRule = null;
var currentId = current as ParseNode_Id;
if (currentId == null)
{
var rule = current.parent;
while (rule != null && !(rule is ParseNode_Rule))
{
rule = rule.parent;
}
currentId = rule != null ? rule.parent as ParseNode_Id : null;
currentRule = rule as ParseNode_Rule;
}
if (currentId != null)
{
var peerAsRule = currentId.LinkedTarget as ParseNode_Rule;
if (peerAsRule != null && peerAsRule.contextualKeyword)
{
Debug.Log(currentId.Name);
}
else if (currentRule != null && currentRule.contextualKeyword)
{
Debug.Log("currentRule " + currentRule.NtName);
}
else
{
var id = currentId.Name;
if (Array.IndexOf(new[]
{
"constantDeclarators",
"constantDeclarator",
}, id) >= 0)
{
hasName = true;
}
}
}
}
if (!current.FirstSet.ContainsEmpty())
{
break;
}
current = current.parent.NextAfterChild(current, clone);
}
tokenSet.RemoveEmpty();
return(hasName);
}
