public static SqlFunctionCallScalarExpression Create(
string name,
bool isUdf,
IReadOnlyList <SqlScalarExpression> arguments)
{
if (!SqlFunctionCallScalarExpression.FunctionIdentifiers.TryGetValue(name, out SqlIdentifier sqlIdentifier))
{
sqlIdentifier = SqlIdentifier.Create(name);
}
return(SqlFunctionCallScalarExpression.Create(sqlIdentifier, isUdf, arguments));
}
public override SqlObject Visit(SqlFunctionCallScalarExpression sqlFunctionCallScalarExpression)
{
SqlScalarExpression[] items = new SqlScalarExpression[sqlFunctionCallScalarExpression.Arguments.Count];
for (int i = 0; i < sqlFunctionCallScalarExpression.Arguments.Count; i++)
{
items[i] = sqlFunctionCallScalarExpression.Arguments[i].Accept(this) as SqlScalarExpression;
}
return(SqlFunctionCallScalarExpression.Create(
sqlFunctionCallScalarExpression.Name,
sqlFunctionCallScalarExpression.IsUdf,
items));
}
public static SqlFunctionCallScalarExpression Create(
string name,
bool isUdf,
params SqlScalarExpression[] arguments)
{
SqlIdentifier sqlIdentifier;
if (!SqlFunctionCallScalarExpression.FunctionIdentifiers.TryGetValue(name, out sqlIdentifier))
{
sqlIdentifier = SqlIdentifier.Create(name);
}
return(SqlFunctionCallScalarExpression.Create(sqlIdentifier, isUdf, arguments));
}
public override int Visit(SqlFunctionCallScalarExpression sqlFunctionCallScalarExpression)
{
int hashCode = SqlFunctionCallScalarExpressionHashCode;
if (sqlFunctionCallScalarExpression.IsUdf)
{
hashCode = CombineHashes(hashCode, SqlFunctionCallScalarExpressionUdfHashCode);
}
hashCode = CombineHashes(hashCode, sqlFunctionCallScalarExpression.Name.Accept(this));
for (int i = 0; i < sqlFunctionCallScalarExpression.Arguments.Count; i++)
{
hashCode = CombineHashes(hashCode, sqlFunctionCallScalarExpression.Arguments[i].Accept(this));
}
return(hashCode);
}
public override void Visit(SqlFunctionCallScalarExpression sqlFunctionCallScalarExpression)
{
if (sqlFunctionCallScalarExpression.IsUdf)
{
this.writer.Write("udf.");
}
sqlFunctionCallScalarExpression.Name.Accept(this);
this.writer.Write("(");
for (int i = 0; i < sqlFunctionCallScalarExpression.Arguments.Count; i++)
{
if (i > 0)
{
this.writer.Write(", ");
}
sqlFunctionCallScalarExpression.Arguments[i].Accept(this);
}
this.writer.Write(")");
}
public override void Visit(SqlFunctionCallScalarExpression sqlFunctionCallScalarExpression)
{
if (sqlFunctionCallScalarExpression.IsUdf)
{
this.writer.Write("udf.");
}
sqlFunctionCallScalarExpression.Name.Accept(this);
int numberOfArguments = sqlFunctionCallScalarExpression.Arguments.Count();
if (numberOfArguments == 0)
{
this.writer.Write("()");
}
else if (numberOfArguments == 1)
{
this.writer.Write("(");
sqlFunctionCallScalarExpression.Arguments[0].Accept(this);
this.writer.Write(")");
}
else
{
this.WriteStartContext("(");
for (int i = 0; i < sqlFunctionCallScalarExpression.Arguments.Count; i++)
{
if (i > 0)
{
this.WriteDelimiter(",");
}
sqlFunctionCallScalarExpression.Arguments[i].Accept(this);
}
this.WriteEndContext(")");
}
}
public static SqlFunctionCallScalarExpression CreateBuiltin(SqlIdentifier name, params SqlScalarExpression[] arguments)
{
return(SqlFunctionCallScalarExpression.Create(name, false, arguments));
}
public static SqlFunctionCallScalarExpression CreateBuiltin(SqlIdentifier name, IReadOnlyList <SqlScalarExpression> arguments)
{
return(SqlFunctionCallScalarExpression.Create(name, false, arguments));
}
public abstract void Visit(SqlFunctionCallScalarExpression scalarExpression);
public static SqlFunctionCallScalarExpression CreateBuiltin(
string name,
params SqlScalarExpression[] arguments) => SqlFunctionCallScalarExpression.Create(name, false, arguments);
public static SqlFunctionCallScalarExpression CreateBuiltin(
string name,
IReadOnlyList <SqlScalarExpression> arguments) => SqlFunctionCallScalarExpression.Create(name, false, arguments);
protected abstract SqlScalarExpression Visit(SqlFunctionCallScalarExpression expression);
