/// <summary>
///
/// </summary>
/// <param name="name"></param>
/// <param name="span"></param>
/// <returns></returns>
public Declaration GetDeclaration(string name, ScopeSpan span)
{
if (_root == null)
{
return(null);
}
List <Declaration> foundDeclarations = new List <Declaration>();
Declaration declaration = DeclarationHelper.BuildDeclaration(name, span);
GetDeclarationsByName(_root, declaration, foundDeclarations);
foundDeclarations.Sort(delegate(Declaration a, Declaration b)
{
if (a.Scope.StartPosition >= b.Scope.StartPosition &&
a.Scope.EndPosition <= b.Scope.EndPosition)
{
return(-1);
}
else
{
return(1);
}
});
if (foundDeclarations.Count > 0)
{
return(foundDeclarations[0]);
}
return(null);
}
internal static IdentifierSource ParseIdentifier(SnapshotPoint point)
{
int spanStart, spanEnd;
for (spanEnd = point.Position; spanEnd < point.Snapshot.Length; ++spanEnd)
{
if (!char.IsLetterOrDigit(point.Snapshot[spanEnd]))
{
break;
}
}
for (spanStart = point.Position; spanStart > 0; --spanStart)
{
if (!char.IsLetterOrDigit(point.Snapshot[spanStart - 1]) &&
point.Snapshot[spanStart - 1] != '.' &&
point.Snapshot[spanStart - 1] != ':')
{
break;
}
}
string id = point.Snapshot.GetText().Substring(spanStart, spanEnd - spanStart);
ScopeSpan span = new ScopeSpan(spanStart, point.GetContainingLine().LineNumber, spanEnd, point.GetContainingLine().LineNumber);
return(new IdentifierSource(id, span));
}
public bool IsInScope(int position, ScopeSpan span)
{
if (position >= span.StartPosition &&
position <= span.EndPosition)
{
return(true);
}
return(false);
}
public IdentifierSource(string id, ScopeSpan span)
{
Identifier = id;
Span = span;
NameSpaces = null;
}
public IdentifierSource(string id, ScopeSpan span, List <IdentifierSource> nameSpaces)
{
Identifier = id;
Span = span;
NameSpaces = nameSpaces;
}