internal override SqlExpression VisitSimpleCase(SqlSimpleCase c)
{
c.Expression = this.VisitExpression(c.Expression);
int num = 0;
int num2 = 0;
int count = c.Whens.Count;
while (num2 < count)
{
if (c.Whens[num2].Match == null)
{
num = num2;
break;
}
num2++;
}
c.Whens[num].Match = this.VisitExpression(c.Whens[num].Match);
c.Whens[num].Value = this.VisitExpression(c.Whens[num].Value);
List <SqlWhen> newWhens = new List <SqlWhen>();
bool allValuesLiteral = true;
int num4 = 0;
int num5 = c.Whens.Count;
while (num4 < num5)
{
if (num != num4)
{
SqlWhen item = c.Whens[num4];
item.Match = this.VisitExpression(item.Match);
item.Value = this.VisitExpression(item.Value);
if (!SqlComparer.AreEqual(c.Whens[num].Value, item.Value))
{
newWhens.Add(item);
}
allValuesLiteral = allValuesLiteral && (item.Value.NodeType == SqlNodeType.Value);
}
num4++;
}
newWhens.Add(c.Whens[num]);
SqlExpression expression = this.TryToConsolidateAllValueExpressions(newWhens.Count, c.Whens[num].Value);
if (expression != null)
{
return(expression);
}
expression = this.TryToWriteAsSimpleBooleanExpression(c.ClrType, c.Expression, newWhens, allValuesLiteral);
if (expression != null)
{
return(expression);
}
expression = this.TryToWriteAsReducedCase(c.ClrType, c.Expression, newWhens, c.Whens[num].Match, c.Whens.Count);
if (expression != null)
{
return(expression);
}
return(c);
}
internal bool AreCaseWhenValuesConstant(SqlSimpleCase sc)
{
foreach (SqlWhen when in sc.Whens)
{
if (when.Value.NodeType != SqlNodeType.Value)
{
return(false);
}
}
return(true);
}
internal override SqlExpression VisitSimpleCase(SqlSimpleCase c)
{
c.Expression = this.VisitExpression(c.Expression);
int num = 0;
int count = c.Whens.Count;
while (num < count)
{
c.Whens[num].Value = this.VisitExpression(c.Whens[num].Value);
num++;
}
return(c);
}
internal virtual SqlExpression VisitSimpleCase(SqlSimpleCase c)
{
c.Expression = this.VisitExpression(c.Expression);
int num = 0;
int count = c.Whens.Count;
while (num < count)
{
SqlWhen when = c.Whens[num];
when.Match = this.VisitExpression(when.Match);
when.Value = this.VisitExpression(when.Value);
num++;
}
return(c);
}
internal override SqlExpression VisitSimpleCase(SqlSimpleCase c)
{
SqlExpression expression;
bool canJoin = this.canJoin;
this.canJoin = false;
try
{
expression = base.VisitSimpleCase(c);
}
finally
{
this.canJoin = canJoin;
}
return(expression);
}
internal override SqlExpression VisitSimpleCase(SqlSimpleCase c)
{
SqlExpression expr = this.VisitExpression(c.Expression);
SqlWhen[] whens = new SqlWhen[c.Whens.Count];
int index = 0;
int length = whens.Length;
while (index < length)
{
SqlWhen when = c.Whens[index];
whens[index] = new SqlWhen(this.VisitExpression(when.Match), this.VisitExpression(when.Value));
index++;
}
return(new SqlSimpleCase(c.ClrType, expr, whens, c.SourceExpression));
}
private SqlExpression DistributeOperatorIntoCase(SqlNodeType nt, SqlSimpleCase sc, SqlExpression expr)
{
if (((nt != SqlNodeType.EQ) && (nt != SqlNodeType.NE)) && ((nt != SqlNodeType.EQ2V) && (nt != SqlNodeType.NE2V)))
{
throw Error.ArgumentOutOfRange("nt");
}
object obj2 = Eval(expr);
var values = new List <SqlExpression>();
var matches = new List <SqlExpression>();
foreach (SqlWhen when in sc.Whens)
{
matches.Add(when.Match);
object obj3 = Eval(when.Value);
bool flag = when.Value.SqlType.AreValuesEqual(obj3, obj2);
values.Add(sql.ValueFromObject(((nt == SqlNodeType.EQ) || (nt == SqlNodeType.EQ2V)) == flag, false, sc.SourceExpression));
}
return(this.VisitExpression(this.sql.Case(typeof(bool), sc.Expression, matches, values, sc.SourceExpression)));
}
internal override SqlExpression VisitSimpleCase(SqlSimpleCase c)
{
base.VisitSimpleCase(c);
IProviderType type = c.Whens[0].Value.SqlType;
for (int i = 1; i < c.Whens.Count; i++)
{
IProviderType sqlType = c.Whens[i].Value.SqlType;
type = this.typeProvider.GetBestType(type, sqlType);
}
foreach (SqlWhen when in c.Whens.Where(delegate(SqlWhen w)
{
//return (w.Value.SqlType != type) && !w.Value.SqlType.IsRuntimeOnlyType;
//MY Code
return((Convert.ToInt32(w.Value.SqlType.SqlDbType) != Convert.ToInt32(type.SqlDbType)) && !w.Value.SqlType.IsRuntimeOnlyType);
//======================
}))
{
when.Value = SqlFactory.UnaryConvert(when.Value.ClrType, type, when.Value, when.Value.SourceExpression);
}
return(c);
}
