internal bool LookupSubspaceBySignature(BooleanPattern signature, out GMacFrameSubspace outSymbol)
{
outSymbol =
FrameSubspaces.FirstOrDefault(x => x.SubspaceSignaturePattern == signature);
return(ReferenceEquals(outSymbol, null) == false);
}
private bool TryAddAsFrameSubspace(string symbolName, LanguageSymbol langSymbol)
{
var symbol = langSymbol as GMacFrameSubspace;
if (symbol == null)
{
return(false);
}
FrameSubspaces.Add(symbolName, symbol);
return(true);
}
/// <summary>
/// Search for a child subspace in this frame having the given signature.
/// If a subspace is found return its signature alse return the given input signature
/// </summary>
/// <param name="signature"></param>
/// <param name="outSignature"></param>
/// <returns></returns>
private bool LookupSubspaceSignaturePattern(BooleanPattern signature, out BooleanPattern outSignature)
{
var outSymbol =
FrameSubspaces.FirstOrDefault(x => x.SubspaceSignaturePattern == signature);
if (ReferenceEquals(outSymbol, null))
{
outSignature = signature;
return(false);
}
outSignature = outSymbol.SubspaceSignaturePattern;
return(true);
}