/// <summary>
/// Parse identifier list. Identifier list have the syntax: identifierList ::= stringDelimiter identifier* stringDelimiter
/// </summary>
/// <param name="token">Token containing the string with the identifier list.</param>
/// <param name="parseErrorSink">Error sink for reporting parse errors.</param>
/// <param name="sourceCodeService">Source code service that can convert tokens to source code span and reports issues.</param>
/// <returns>A collection of sub-tokens if successful or null if token string is illegal.</returns>
protected internal virtual IEnumerable <SourceReference <string> > ParseIdentifierList(StringToken token, IParseErrorSink parseErrorSink, ISourceCodeReferenceService sourceCodeService)
{
if (token == null)
{
throw new ArgumentNullException("token");
}
if (parseErrorSink == null)
{
throw new ArgumentNullException("parseErrorSink");
}
if (sourceCodeService == null)
{
throw new ArgumentNullException("sourceCodeService");
}
List <SourceReference <string> > result = new List <SourceReference <string> >();
if (token.Value.Length == 0)
{
return(result);
}
Scanner scanner = new Scanner(new StringReader(token.Value));
Token t = scanner.GetToken();
while (!(t is EofToken))
{
// Skip whitespaces (incl. comments).
if (!(t is WhitespaceToken))
{
// Offset the token to the position within the original token. +1 is due to the opening string ' quote.
t.SetTokenValues(
new SourceLocation(t.StartPosition.Position + token.StartPosition.Position + 1,
t.StartPosition.Line + token.StartPosition.Line,
t.StartPosition.Column + token.StartPosition.Column + 1),
new SourceLocation(t.StopPosition.Position + token.StartPosition.Position + 1,
t.StopPosition.Line + token.StartPosition.Line,
t.StopPosition.Column + token.StartPosition.Column + 1),
t.ScanError);
if (t is IdentifierToken)
{
// identifier OK
result.Add(new SourceReference <string>(((IdentifierToken)t).Value, t.StartPosition, t.StopPosition, sourceCodeService));
}
else
{
// Non-identifier, report error
parseErrorSink.AddParserError(t.StartPosition, t.StopPosition, "Expected identifier", t);
return(null); // Error condition
}
}
t = scanner.GetToken();
}
return(result);
}
protected virtual SmalltalkClass.InstanceStateEnum?GetInstanceState(InterchangeFormatProcessor processor, IParseErrorSink parseErrorSink, ISourceCodeReferenceService sourceCodeService)
{
if (this.IndexedInstanceVariables.Value == "byte")
{
return(SmalltalkClass.InstanceStateEnum.ByteIndexable);
}
else if (this.IndexedInstanceVariables.Value == "object")
{
return(SmalltalkClass.InstanceStateEnum.ObjectIndexable);
}
else if (this.IndexedInstanceVariables.Value == "none")
{
return(SmalltalkClass.InstanceStateEnum.NamedObjectVariables);
}
else
{
parseErrorSink.AddParserError(this.IndexedInstanceVariables.StartPosition, this.IndexedInstanceVariables.StopPosition,
"Invalid instance state type. Allowed values are: #byte, #object and #none.", this.IndexedInstanceVariables);
return(null);
}
}
/// <summary>
/// Parse identifier list. Identifier list have the syntax: identifierList ::= stringDelimiter identifier* stringDelimiter
/// </summary>
/// <param name="token">Token containing the string with the identifier list.</param>
/// <param name="parseErrorSink">Error sink for reporting parse errors.</param>
/// <param name="sourceCodeService">Source code service that can convert tokens to source code span and reports issues.</param>
/// <returns>A collection of sub-tokens if successful or null if token string is illegal.</returns>
protected internal virtual IEnumerable<SourceReference<string>> ParseIdentifierList(StringToken token, IParseErrorSink parseErrorSink, ISourceCodeReferenceService sourceCodeService)
{
if (token == null)
throw new ArgumentNullException("token");
if (parseErrorSink == null)
throw new ArgumentNullException("parseErrorSink");
if (sourceCodeService == null)
throw new ArgumentNullException("sourceCodeService");
List<SourceReference<string>> result = new List<SourceReference<string>>();
if (token.Value.Length == 0)
return result;
Scanner scanner = new Scanner(new StringReader(token.Value));
Token t = scanner.GetToken();
while (!(t is EofToken))
{
// Skip whitespaces (incl. comments).
if (!(t is WhitespaceToken))
{
// Offset the token to the position within the original token. +1 is due to the opening string ' quote.
t.SetTokenValues(
new SourceLocation(t.StartPosition.Position + token.StartPosition.Position + 1,
t.StartPosition.Line + token.StartPosition.Line,
t.StartPosition.Column + token.StartPosition.Column + 1),
new SourceLocation(t.StopPosition.Position + token.StartPosition.Position + 1,
t.StopPosition.Line + token.StartPosition.Line,
t.StopPosition.Column + token.StartPosition.Column + 1),
t.ScanError);
if (t is IdentifierToken)
{
// identifier OK
result.Add(new SourceReference<string>(((IdentifierToken)t).Value, t.StartPosition, t.StopPosition, sourceCodeService));
}
else
{
// Non-identifier, report error
parseErrorSink.AddParserError(t.StartPosition, t.StopPosition, "Expected identifier", t);
return null; // Error condition
}
}
t = scanner.GetToken();
}
return result;
}
protected virtual SmalltalkClass.InstanceStateEnum? GetInstanceState(InterchangeFormatProcessor processor, IParseErrorSink parseErrorSink, ISourceCodeReferenceService sourceCodeService)
{
if (this.IndexedInstanceVariables.Value == "byte")
return SmalltalkClass.InstanceStateEnum.ByteIndexable;
else if (this.IndexedInstanceVariables.Value == "object")
return SmalltalkClass.InstanceStateEnum.ObjectIndexable;
else if (this.IndexedInstanceVariables.Value == "none")
return SmalltalkClass.InstanceStateEnum.NamedObjectVariables;
else
{
parseErrorSink.AddParserError(this.IndexedInstanceVariables.StartPosition, this.IndexedInstanceVariables.StopPosition,
"Invalid instance state type. Allowed values are: #byte, #object and #none.", this.IndexedInstanceVariables);
return null;
}
}
