/// <summary>
/// 转换表达式
/// </summary>
/// <param name="converter">表达式转换器</param>
/// <param name="expression">表达式</param>
private void convertInSet(sql.expression.converter converter, Expression expression)
{
charStream stream = converter.Stream;
BinaryExpression binaryExpression = (BinaryExpression)expression;
Expression left = binaryExpression.Left;
converters[(int)left.NodeType](converter, left);
stream.Write(" In(");
func <object, string> toString = null;
int index = -1;
foreach (object value in (IEnumerable)((ConstantExpression)binaryExpression.Right).Value)
{
if (++index == 0)
{
toString = constantConverter.Default[value.GetType()];
}
else
{
stream.Write(',');
}
stream.Write(toString != null ? toString(value) : constantConverter.convertConstantStringMssql(value.ToString()));
}
stream.Write(')');
}
/// <summary>
/// 转换表达式
/// </summary>
/// <param name="converter">表达式转换器</param>
/// <param name="expression">表达式</param>
private void convertInSet(sql.expression.converter converter, Expression expression)
{
charStream stream = converter.Stream;
BinaryExpression binaryExpression = (BinaryExpression)expression;
Expression left = binaryExpression.Left;
converters[(int)left.NodeType](converter, left);
stream.SimpleWriteNotNull(" In(");
Action <charStream, object> toString = null;
int index = -1;
foreach (object value in (IEnumerable)((ConstantExpression)binaryExpression.Right).Value)
{
if (++index == 0)
{
toString = constantConverter[value.GetType()];
}
else
{
stream.Write(',');
}
if (toString == null)
{
stringConverter(stream, value.ToString());
}
else
{
toString(stream, value);
}
}
stream.Write(')');
}
/// <summary>
/// 转换表达式
/// </summary>
/// <param name="converter">表达式转换器</param>
/// <param name="expression">表达式</param>
private void convertConstant(sql.expression.converter converter, Expression expression)
{
object value = ((ConstantExpression)expression).Value;
if (value != null)
{
func <object, string> toString = constantConverter.Default[value.GetType()];
if (toString != null)
{
converter.Stream.Write(toString(value));
}
else
{
converter.Stream.Write(constantConverter.convertConstantStringMssql(value.ToString()));
}
}
else
{
converter.Stream.Write("null");
}
}
/// <summary>
/// 转换表达式
/// </summary>
/// <param name="converter">表达式转换器</param>
/// <param name="expression">表达式</param>
private void convertConstant(sql.expression.converter converter, Expression expression)
{
object value = ((ConstantExpression)expression).Value;
if (value != null)
{
Action <charStream, object> toString = constantConverter[value.GetType()];
if (toString != null)
{
toString(converter.Stream, value);
}
else
{
stringConverter(converter.Stream, value.ToString());
}
}
else
{
fastCSharp.web.ajax.WriteNull(converter.Stream);
}
}
