private void HandleFlowSourceSpec(FlowSourceSpec flowSourceSpec)
{
flowSourceSpec.PreIdentifier = ConsumeType(TokenTypes.Identifier);
ConsumeType(TokenTypes.SingleColon);
ConsumeType(TokenTypes.Flow);
Consume();
flowSourceSpec.Identifier = ConsumeType(TokenTypes.Identifier);
flowSourceSpec.Associations = TryHandleAssociationBlock();
}
private FlowSpec HandleFlows()
{
if (!ThisToken().Match(TokenTypes.Flows))
{
return(new NoneFlowSpec
{
BeginPosition = ThisToken().TokenBeginIdx,
EndPosition = ThisToken().TokenBeginIdx
});
}
Consume();
FlowSpec spec = null;
TryParseAndResumeToToken(() =>
{
if (ThisToken().Match(TokenTypes.None))
{
spec = new NoneFlowSpec
{
BeginPosition = ThisToken().TokenBeginIdx
};
Consume();
return;
}
switch (LookAhead(3).TokenType)
{
case TokenTypes.Source:
var flowSourceSpec = new FlowSourceSpec
{
BeginPosition = ThisToken().TokenBeginIdx
};
spec = flowSourceSpec;
HandleFlowSourceSpec(flowSourceSpec);
break;
case TokenTypes.Sink:
var flowSinkSpec = new FlowSinkSpec
{
BeginPosition = ThisToken().TokenBeginIdx
};
spec = flowSinkSpec;
HandleFlowSinkSpec(flowSinkSpec);
break;
case TokenTypes.Path:
var flowPathSpec = new FlowPathSpec
{
BeginPosition = ThisToken().TokenBeginIdx
};
spec = flowPathSpec;
HandleFlowPathSpec(flowPathSpec);
break;
default:
throw Error(new GrammarException("Expect source, sink or path", LookAhead(3), null));
}
}, TokenTypes.Semicolon);
var token = ConsumeType(TokenTypes.Semicolon);
if (spec != null)
{
spec.EndPosition = token.TokenEndIdx;
}
return(spec);
}