/// <summary>
/// Does
/// <paramref name="pattern"/>
/// matched as rule patternRuleIndex match tree? Pass in a
/// compiled pattern instead of a string representation of a tree pattern.
/// </summary>
public virtual bool Matches(IParseTree tree, ParseTreePattern pattern)
{
MultiMap <string, IParseTree> labels = new MultiMap <string, IParseTree>();
IParseTree mismatchedNode = MatchImpl(tree, pattern.PatternTree, labels);
return(mismatchedNode == null);
}
public virtual ParseTreeMatch Match(IParseTree tree, ParseTreePattern pattern)
{
MultiMap <string, IParseTree> labels = new MultiMap <string, IParseTree>();
IParseTree mismatchedNode = MatchImpl(tree, pattern.PatternTree, labels);
return(new ParseTreeMatch(tree, pattern, labels, mismatchedNode));
}
/// <summary>
/// Constructs a new instance of
/// <see cref="ParseTreeMatch"/>
/// from the specified
/// parse tree and pattern.
/// </summary>
/// <param name="tree">The parse tree to match against the pattern.</param>
/// <param name="pattern">The parse tree pattern.</param>
/// <param name="labels">
/// A mapping from label names to collections of
/// <see cref="erl.Oracle.TnsNames.Antlr4.Runtime.Tree.IParseTree"/>
/// objects located by the tree pattern matching process.
/// </param>
/// <param name="mismatchedNode">
/// The first node which failed to match the tree
/// pattern during the matching process.
/// </param>
/// <exception>
/// IllegalArgumentException
/// if
/// <paramref name="tree"/>
/// is
/// <see langword="null"/>
/// </exception>
/// <exception>
/// IllegalArgumentException
/// if
/// <paramref name="pattern"/>
/// is
/// <see langword="null"/>
/// </exception>
/// <exception>
/// IllegalArgumentException
/// if
/// <paramref name="labels"/>
/// is
/// <see langword="null"/>
/// </exception>
public ParseTreeMatch(IParseTree tree, ParseTreePattern pattern, MultiMap <string, IParseTree> labels, IParseTree mismatchedNode)
{
if (tree == null)
{
throw new ArgumentException("tree cannot be null");
}
if (pattern == null)
{
throw new ArgumentException("pattern cannot be null");
}
if (labels == null)
{
throw new ArgumentException("labels cannot be null");
}
this.tree = tree;
this.pattern = pattern;
this.labels = labels;
this.mismatchedNode = mismatchedNode;
}
/// <summary>
/// Compare
/// <paramref name="pattern"/>
/// matched as rule
/// <paramref name="patternRuleIndex"/>
/// against
/// <paramref name="tree"/>
/// and return a
/// <see cref="ParseTreeMatch"/>
/// object that contains the
/// matched elements, or the node at which the match failed.
/// </summary>
public virtual ParseTreeMatch Match(IParseTree tree, string pattern, int patternRuleIndex)
{
ParseTreePattern p = Compile(pattern, patternRuleIndex);
return(Match(tree, p));
}