public ISqlNode ParseExecute(ITokenizer t)
{
// ("EXEC"|"EXECUTE") ( <stringExpression> | <objectIdentifier> <ListOfArgument> )
// TODO: @return_status = ...
// TODO: WITH <execute_option>
var execToken = t.Expect(SqlTokenType.Keyword, "EXEC", "EXECUTE");
var execNode = new SqlExecuteNode()
{
Location = execToken.Location,
};
if (t.Peek().IsType(SqlTokenType.Identifier))
{
execNode.Name = ParseObjectIdentifier(t);
execNode.Arguments = ParseList(t, ParseExecArgument);
return(execNode);
}
bool isParenthesis = t.Peek().IsSymbol("(");
var stringExpression = ParseScalarTerm(t);
if (isParenthesis)
{
stringExpression = new SqlParenthesisNode <ISqlNode>(stringExpression);
}
execNode.Name = stringExpression;
return(execNode);
}
public virtual ISqlNode VisitParenthesis <TNode>(SqlParenthesisNode <TNode> n)
where TNode : class, ISqlNode
{
var expr = Visit(n.Expression) as TNode;
return(n.Update(expr));
}
public ISqlNode VisitParenthesis <TNode>(SqlParenthesisNode <TNode> n)
where TNode : class, ISqlNode
{
AppendLine("(");
IncreaseIndent();
WriteIndent();
if (n.Expression != null)
{
Visit(n.Expression);
}
DecreaseIndent();
AppendLineAndIndent();
Append(")");
return(n);
}
public override ISqlNode VisitParenthesis <TNode>(SqlParenthesisNode <TNode> n)
{
_result.AssertNotNull(n, nameof(n.Expression), n.Expression);
return(base.VisitParenthesis(n));
}
