private SourceStruct m_lastStruct = null; // used to remember last structure created for use in linking more
public SourceFile(FileRef filepath, Type type)
: base(filepath.Filename, TokenRef.Type.Non)
{
Debug.Assert(type != Type.Null, "Cannot be of Type.Null");
Filepath = filepath;
OfType = type;
SourceStruct = null;
}
public void LinkNext(SourceStruct srcStruct)
{
if (Next == null)
{
Next = srcStruct;
}
else
{
Next.LinkNext(srcStruct); // find the current end of the list
}
}
public static SourceStruct Build(SourceFile srcFile)
{
SourceObject start = srcFile.Sequence; // the start object in a sequence of Struct objects to process
SourceObject next = start; // the next object to process
SourceStruct first = null; // the 1st struct built upon this call
SourceStruct previous, build = null;
ParseResponse response = NextStateFunc.GoToNextState(next);
do
{
} while (response != ParseResponse.Null);
return(first);
}
/// <summary>Build the SourceStruct using the SoucreObject sequence from a SourceFile</summary>
/// <param name="lastSrcStruct">Ref: loaded with the last SourceStruct created previously or null if none. Gets set to the last created this call</param>
/// <param name="srcFile">The SourceFile to use for building the SourceStruct from</param>
/// <returns>The 1st SourceStruct created by this call ...</returns>
internal SourceStruct Build(ref SourceStruct lastSrcStruct, SourceFile srcFile)
{
BuildInstr instr = BuildInstr.Continue; // continue until a struct is identified
SourceObject start = srcFile.Sequence; // the start object in a sequence of Struct objects to process
SourceObject next = start; // the next object to process
SourceStruct first = null; // the 1st struct built upon this call
SourceStruct previous, build = null;
NextStateFunc.BeginParse();
while (next != null)
{
ParseResponse response = NextStateFunc.GoToNextState(next);
switch (response)
{
case ParseResponse.Accept:
if (first == null)
{
first = build;
}
break;
case ParseResponse.Resume:
break;
case ParseResponse.Next:
case ParseResponse.Call:
next = next.Sequence;
break;
default:
throw new InvalidEnumValueException(typeof(ParseResponse), response);
}
}
// TODO: add check for source file completion, i.e. nothing left on the stack
return(first);
}
public virtual void SetChild(SourceStruct srcStruct)
{
throw new InvalidOperationException($"Can't set child for a 'SourceStruct Object -must be a SourceContainer!\nThis object: {this}, of type: {OfType.ToString()}");
}
public void AddStruct(SourceStruct sourceStruct)
{
m_lastStruct.LinkNext(sourceStruct);
m_lastStruct = sourceStruct;
}