public static bool TryParseNode(Genero4glParser parser, out CreateStatement node, IModuleResult containingModule)
{
node = null;
bool result = true;
if (parser.PeekToken(TokenKind.CreateKeyword))
{
parser.NextToken();
switch (parser.PeekToken().Kind)
{
case TokenKind.SequenceKeyword:
CreateSequenceStatement sequenceNode;
result = CreateSequenceStatement.TryParseNode(parser, out sequenceNode);
node = sequenceNode;
break;
case TokenKind.TableKeyword:
case TokenKind.TempKeyword:
CreateTableStatement tableNode;
result = CreateTableStatement.TryParseNode(parser, out tableNode, containingModule);
node = tableNode;
break;
default:
result = false;
break;
}
}
return(result);
}
internal static bool TryParseNode(Genero4glParser parser, out CreateSequenceStatement node)
{
node = null;
bool result = false;
if (parser.PeekToken(TokenKind.SequenceKeyword))
{
result = true;
node = new CreateSequenceStatement();
node.StartIndex = parser.Token.Span.Start; // want to get the start of the create token
parser.NextToken();
if (parser.PeekToken(TokenKind.IfKeyword))
{
parser.NextToken();
if (parser.PeekToken(TokenKind.NotKeyword))
{
parser.NextToken();
if (parser.PeekToken(TokenKind.ExistsKeyword))
{
parser.NextToken();
}
else
{
parser.ReportSyntaxError("Expecting \"exists\" keyword in create sequence statement.");
}
}
else
{
parser.ReportSyntaxError("Expecting \"not\" keyword in create sequence statement.");
}
}
FglNameExpression nameExpr;
if (FglNameExpression.TryParseNode(parser, out nameExpr))
{
node.SequenceName = nameExpr;
}
else
{
parser.ReportSyntaxError("Invalid name found for create sequence statement.");
}
// TODO: finish getting the modifiers
}
return(result);
}
