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 CreateTableStatement node, IModuleResult containingModule)
{
node = null;
bool result = false;
bool temp = false;
int tempIndex = -1;
if (parser.PeekToken(TokenKind.TempKeyword))
{
tempIndex = parser.Token.Span.Start;
temp = true;
parser.NextToken();
}
if (parser.PeekToken(TokenKind.TableKeyword))
{
result = true;
node = new CreateTableStatement();
node.TempTable = temp;
if (tempIndex >= 0)
{
node.StartIndex = tempIndex;
}
else
{
node.StartIndex = parser.Token.Span.Start;
}
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 table statement.");
}
}
else
{
parser.ReportSyntaxError("Expecting \"not\" keyword in create table statement.");
}
}
FglNameExpression nameExpr;
if (FglNameExpression.TryParseNode(parser, out nameExpr))
{
node.TableName = nameExpr;
}
else
{
parser.ReportSyntaxError("Invalid name found for create table statement.");
}
if (parser.PeekToken(TokenKind.LeftParenthesis))
{
parser.NextToken();
CreatedTableColumn tableCol;
while (CreatedTableColumn.TryParseNode(parser, out tableCol) && tableCol != null)
{
node.Children.Add(tableCol.StartIndex, tableCol);
if (parser.PeekToken(TokenKind.Comma))
{
parser.NextToken();
}
else
{
break;
}
}
if (parser.PeekToken(TokenKind.RightParenthesis))
{
parser.NextToken();
}
else
{
parser.ReportSyntaxError("Expected right-paren in create table statement.");
}
if (parser.PeekToken(TokenKind.WithKeyword))
{
parser.NextToken();
if (parser.PeekToken(TokenKind.NoKeyword))
{
parser.NextToken();
if (parser.PeekToken(TokenKind.LogKeyword))
{
parser.NextToken();
}
else
{
parser.ReportSyntaxError("Expecting \"log\" keyword in create table statement.");
}
}
else
{
parser.ReportSyntaxError("Expecting \"no\" keyword in create table statement.");
}
}
if (parser.PeekToken(TokenKind.InKeyword))
{
parser.NextToken();
if (FglNameExpression.TryParseNode(parser, out nameExpr))
{
node.TablespaceName = nameExpr;
}
else
{
parser.ReportSyntaxError("Invalid name found for create table statement.");
}
}
if (parser.PeekToken(TokenKind.ExtentKeyword))
{
parser.NextToken();
if (parser.PeekToken(TokenKind.SizeKeyword))
{
parser.NextToken();
ExpressionNode extSize;
if (FglExpressionNode.TryGetExpressionNode(parser, out extSize))
{
node.ExtentSize = extSize;
}
else
{
parser.ReportSyntaxError("Invalid expression found for extent size in create table statement.");
}
}
else
{
parser.ReportSyntaxError("Expecting \"size\" keyword in create table statement.");
}
}
if (parser.PeekToken(TokenKind.NextKeyword))
{
parser.NextToken();
if (parser.PeekToken(TokenKind.SizeKeyword))
{
parser.NextToken();
ExpressionNode extSize;
if (FglExpressionNode.TryGetExpressionNode(parser, out extSize))
{
node.NextSize = extSize;
}
else
{
parser.ReportSyntaxError("Invalid expression found for next size in create table statement.");
}
}
else
{
parser.ReportSyntaxError("Expecting \"size\" keyword in create table statement.");
}
}
if (parser.PeekToken(TokenKind.LockKeyword))
{
parser.NextToken();
if (parser.PeekToken(TokenKind.ModeKeyword))
{
parser.NextToken();
switch (parser.PeekToken().Kind)
{
case TokenKind.PageKeyword:
parser.NextToken();
break;
case TokenKind.RowKeyword:
parser.NextToken();
break;
default:
parser.ReportSyntaxError("Expecting \"page\" or \"row\" keyword in create table statement.");
break;
}
}
else
{
parser.ReportSyntaxError("Expecting \"mode\" keyword in create table statement.");
}
}
}
else
{
parser.ReportSyntaxError("Expected left-paren in create table statement.");
}
containingModule.BindTableResult(node, parser);
}
return(result);
}
