/// <summary>
/// Convert expression to code.
/// </summary>
/// <param name="expression">Expression.</param>
/// <param name="converter">Expression converter.</param>
/// <returns>Parts.</returns>
public override ICode Convert(MethodCallExpression expression, ExpressionConverter converter)
{
//TODO これちょっとおかしい
var startIndex = expression.SkipMethodChain(0);
var table = FromConverterAttribute.ConvertTable(converter, expression.Arguments[startIndex]);
if (table.IsEmpty)
{
return(string.Empty.ToCode());
}
var condition = ((startIndex + 1) < expression.Arguments.Count) ? converter.ConvertToCode(expression.Arguments[startIndex + 1]) : null;
var join = new HCode()
{
AddIndentNewLine = true, Separator = " ", Indent = 1
};
join.Add(_nameCode);
join.Add(table);
if (condition != null)
{
join.Add("ON".ToCode());
join.Add(condition);
}
return(join);
}
internal static HCode Clause(ICode clause, params ICode[] args)
{
var code = new HCode() { AddIndentNewLine = true, Separator = " " };
code.Add(clause);
code.AddRange(args);
return code;
}
internal static HCode Clause(ICode clause, params ICode[] args)
{
var code = new HCode()
{
AddIndentNewLine = true, Separator = " "
};
code.Add(clause);
code.AddRange(args);
return(code);
}
