internal SqlExpression TranslateLinkIsNull(SqlUnary expr)
{
SqlLink operand = expr.Operand as SqlLink;
if (((operand == null) || !operand.Member.IsAssociation) || !operand.Member.Association.IsForeignKey)
{
return(expr);
}
IList <SqlExpression> keyExpressions = operand.KeyExpressions;
SqlExpression left = null;
SqlNodeType nodeType = (expr.NodeType == SqlNodeType.IsNull) ? SqlNodeType.Or : SqlNodeType.And;
int num = 0;
int count = keyExpressions.Count;
while (num < count)
{
SqlExpression right = this.sql.Unary(expr.NodeType, this.sql.DoNotVisitExpression(keyExpressions[num]), expr.SourceExpression);
if (left == null)
{
left = right;
}
else
{
left = this.sql.Binary(nodeType, left, right);
}
num++;
}
return(left);
}
internal override SqlExpression VisitUnaryOperator(SqlUnary uo)
{
uo.Operand = VisitExpression(uo.Operand);
if (uo.NodeType == SqlNodeType.Convert)
{
IProviderType sqlType = uo.Operand.SqlType;
IProviderType newSqlType = uo.SqlType;
Type nonNullableType = TypeSystem.GetNonNullableType(uo.Operand.ClrType);
Type clrType = TypeSystem.GetNonNullableType(uo.ClrType);
if (clrType == typeof(char))
{
if (nonNullableType == typeof(bool))
{
throw Error.ConvertToCharFromBoolNotSupported();
}
if (sqlType.IsNumeric)
{
return(sql.FunctionCall(uo.ClrType, "NCHAR", new[] { uo.Operand }, uo.SourceExpression));
}
if (!StringConversionIsSafe(sqlType, newSqlType))
{
throw Error.UnsafeStringConversion(sqlType.ToQueryString(), newSqlType.ToQueryString());
}
if (StringConversionIsNeeded(sqlType, newSqlType))
{
uo.SetSqlType(sql.TypeProvider.From(uo.ClrType, sqlType.HasSizeOrIsLarge ? sqlType.Size : null));
}
return(uo);
}
if (((nonNullableType == typeof(char)) && (sqlType.IsChar || sqlType.IsString)) && newSqlType.IsNumeric)
{
//return sql.FunctionCall(clrType, sql.TypeProvider.From(typeof(int)), "UNICODE", new[] { uo.Operand }, uo.SourceExpression);
return(sql.UNICODE(clrType, uo));
}
if (clrType != typeof(string))
{
return(uo);
}
if (nonNullableType == typeof(double))
{
return(ConvertDoubleToString(uo.Operand, uo.ClrType));
}
if (nonNullableType == typeof(bool))
{
return(ConvertBitToString(uo.Operand, uo.ClrType));
}
if (!StringConversionIsSafe(sqlType, newSqlType))
{
throw Error.UnsafeStringConversion(sqlType.ToQueryString(), newSqlType.ToQueryString());
}
if (StringConversionIsNeeded(sqlType, newSqlType))
{
uo.SetSqlType(sql.TypeProvider.From(uo.ClrType, sqlType.HasSizeOrIsLarge ? sqlType.Size : null));
}
}
return(uo);
}
internal override SqlExpression VisitUnaryOperator(SqlUnary uo)
{
base.VisitUnaryOperator(uo);
if (((uo.NodeType != SqlNodeType.Convert) && (uo.Operand != null)) && (uo.Operand.SqlType != null))
{
uo.SetSqlType(typeProvider.PredictTypeForUnary(uo.NodeType, uo.Operand.SqlType));
}
return(uo);
}
internal override SqlExpression VisitUnaryOperator(SqlUnary fc)
{
SqlExpression first = base.VisitUnaryOperator(fc);
if (!(first is SqlUnary))
{
return(first);
}
SqlUnary unary = (SqlUnary)first;
if (unary.NodeType != SqlNodeType.ClrLength)
{
return(first);
}
SqlExpression operand = unary.Operand;
first = this.sql.DATALENGTH(operand);
if (operand.SqlType.IsUnicodeType)
{
first = this.sql.Divide(first, this.sql.ValueFromObject(2, operand.SourceExpression));
}
return(this.sql.ConvertToInt(first));
}
internal override SqlExpression VisitTreat(SqlUnary t)
{
t.Operand = this.VisitExpression(t.Operand);
Type clrType = t.ClrType;
Type type = this.model.GetMetaType(t.Operand.ClrType).InheritanceRoot.Type;
clrType = TypeSystem.GetNonNullableType(clrType);
type = TypeSystem.GetNonNullableType(type);
if (clrType == type)
{
return(t.Operand);
}
if (clrType.IsAssignableFrom(type))
{
t.Operand.SetClrType(clrType);
return(t.Operand);
}
if ((!clrType.IsAssignableFrom(type) && !type.IsAssignableFrom(clrType)) &&
(!clrType.IsInterface && !type.IsInterface))
{
return(this.sql.TypedLiteralNull(clrType, t.SourceExpression));
}
return(t);
}
internal virtual SqlExpression VisitUnaryOperator(SqlUnary uo)
{
uo.Operand = this.VisitExpression(uo.Operand);
return(uo);
}
internal virtual SqlExpression VisitTreat(SqlUnary t)
{
t.Operand = this.VisitExpression(t.Operand);
return(t);
}
internal virtual SqlExpression VisitCast(SqlUnary c)
{
c.Operand = this.VisitExpression(c.Operand);
return(c);
}
internal override SqlExpression VisitUnaryOperator(SqlUnary uo)
{
return(new SqlUnary(uo.NodeType, uo.ClrType, uo.SqlType, (SqlExpression)this.Visit(uo.Operand), uo.Method, uo.SourceExpression));
}
internal override SqlExpression VisitTreat(SqlUnary t)
{
return(new SqlUnary(SqlNodeType.Treat, t.ClrType, t.SqlType, (SqlExpression)this.Visit(t.Operand), t.SourceExpression));
}
internal override SqlExpression VisitCast(SqlUnary c)
{
return(new SqlUnary(SqlNodeType.Cast, c.ClrType, c.SqlType, (SqlExpression)this.Visit(c.Operand), c.SourceExpression));
}
private SqlExpression ExpandTogether(IList <SqlExpression> exprs)
{
switch (exprs[0].NodeType)
{
case SqlNodeType.Element:
case SqlNodeType.Grouping:
case SqlNodeType.ClientQuery:
case SqlNodeType.Multiset:
throw Error.UnionWithHierarchy();
case SqlNodeType.Link:
{
SqlLink[] linkArray = new SqlLink[exprs.Count];
linkArray[0] = (SqlLink)exprs[0];
int index = 1;
int count = exprs.Count;
while (index < count)
{
if ((exprs[index] == null) || (exprs[index].NodeType != SqlNodeType.Link))
{
throw Error.UnionIncompatibleConstruction();
}
linkArray[index] = (SqlLink)exprs[index];
if (((linkArray[index].KeyExpressions.Count != linkArray[0].KeyExpressions.Count) ||
(linkArray[index].Member != linkArray[0].Member)) ||
((linkArray[index].Expansion != null) != (linkArray[0].Expansion != null)))
{
throw Error.UnionIncompatibleConstruction();
}
index++;
}
SqlExpression[] keyExpressions = new SqlExpression[linkArray[0].KeyExpressions.Count];
List <SqlExpression> list11 = new List <SqlExpression>();
int num29 = 0;
int num30 = linkArray[0].KeyExpressions.Count;
while (num29 < num30)
{
list11.Clear();
int num31 = 0;
int num32 = exprs.Count;
while (num31 < num32)
{
list11.Add(linkArray[num31].KeyExpressions[num29]);
num31++;
}
keyExpressions[num29] = this.ExpandTogether(list11);
int num33 = 0;
int num34 = exprs.Count;
while (num33 < num34)
{
linkArray[num33].KeyExpressions[num29] = list11[num33];
num33++;
}
num29++;
}
SqlExpression expansion = null;
if (linkArray[0].Expansion != null)
{
list11.Clear();
int num35 = 0;
int num36 = exprs.Count;
while (num35 < num36)
{
list11.Add(linkArray[num35].Expansion);
num35++;
}
expansion = this.ExpandTogether(list11);
int num37 = 0;
int num38 = exprs.Count;
while (num37 < num38)
{
linkArray[num37].Expansion = list11[num37];
num37++;
}
}
return(new SqlLink(linkArray[0].Id, linkArray[0].RowType, linkArray[0].ClrType,
linkArray[0].SqlType, linkArray[0].Expression, linkArray[0].Member,
keyExpressions, expansion, linkArray[0].SourceExpression));
}
case SqlNodeType.ClientCase:
{
SqlClientCase[] caseArray = new SqlClientCase[exprs.Count];
caseArray[0] = (SqlClientCase)exprs[0];
for (int i = 1; i < caseArray.Length; i++)
{
caseArray[i] = (SqlClientCase)exprs[i];
}
List <SqlExpression> list3 = new List <SqlExpression>();
for (int j = 0; j < caseArray.Length; j++)
{
list3.Add(caseArray[j].Expression);
}
SqlExpression expr = this.ExpandTogether(list3);
List <SqlClientWhen> whens = new List <SqlClientWhen>();
for (int k = 0; k < caseArray[0].Whens.Count; k++)
{
List <SqlExpression> list5 = new List <SqlExpression>();
for (int m = 0; m < caseArray.Length; m++)
{
SqlClientWhen when = caseArray[m].Whens[k];
list5.Add(when.Value);
}
whens.Add(new SqlClientWhen(caseArray[0].Whens[k].Match, this.ExpandTogether(list5)));
}
return(new SqlClientCase(caseArray[0].ClrType, expr, whens, caseArray[0].SourceExpression));
}
case SqlNodeType.DiscriminatedType:
{
SqlDiscriminatedType type = (SqlDiscriminatedType)exprs[0];
List <SqlExpression> list15 = new List <SqlExpression>(exprs.Count);
list15.Add(type.Discriminator);
int num44 = 1;
int num45 = exprs.Count;
while (num44 < num45)
{
SqlDiscriminatedType type2 = (SqlDiscriminatedType)exprs[num44];
if (type2.TargetType != type.TargetType)
{
throw Error.UnionIncompatibleConstruction();
}
list15.Add(type2.Discriminator);
num44++;
}
return(this.factory.DiscriminatedType(this.ExpandTogether(list15),
((SqlDiscriminatedType)exprs[0]).TargetType));
}
case SqlNodeType.MethodCall:
{
SqlMethodCall[] callArray = new SqlMethodCall[exprs.Count];
for (int n = 0; n < callArray.Length; n++)
{
callArray[n] = (SqlMethodCall)exprs[n];
}
List <SqlExpression> list = new List <SqlExpression>();
for (int num2 = 0; num2 < callArray[0].Arguments.Count; num2++)
{
List <SqlExpression> list2 = new List <SqlExpression>();
for (int num3 = 0; num3 < callArray.Length; num3++)
{
list2.Add(callArray[num3].Arguments[num2]);
}
SqlExpression item = this.ExpandTogether(list2);
list.Add(item);
}
return(this.factory.MethodCall(callArray[0].Method, callArray[0].Object, list.ToArray(),
callArray[0].SourceExpression));
}
case SqlNodeType.New:
{
SqlNew[] newArray = new SqlNew[exprs.Count];
newArray[0] = (SqlNew)exprs[0];
int num13 = 1;
int num14 = exprs.Count;
while (num13 < num14)
{
if ((exprs[num13] == null) || (exprs[num13].NodeType != SqlNodeType.New))
{
throw Error.UnionIncompatibleConstruction();
}
newArray[num13] = (SqlNew)exprs[1];
if (newArray[num13].Members.Count != newArray[0].Members.Count)
{
throw Error.UnionDifferentMembers();
}
int num15 = 0;
int num16 = newArray[0].Members.Count;
while (num15 < num16)
{
if (newArray[num13].Members[num15].Member != newArray[0].Members[num15].Member)
{
throw Error.UnionDifferentMemberOrder();
}
num15++;
}
num13++;
}
SqlMemberAssign[] bindings = new SqlMemberAssign[newArray[0].Members.Count];
int num17 = 0;
int length = bindings.Length;
while (num17 < length)
{
List <SqlExpression> list9 = new List <SqlExpression>();
int num19 = 0;
int num20 = exprs.Count;
while (num19 < num20)
{
list9.Add(newArray[num19].Members[num17].Expression);
num19++;
}
bindings[num17] = new SqlMemberAssign(newArray[0].Members[num17].Member,
this.ExpandTogether(list9));
int num21 = 0;
int num22 = exprs.Count;
while (num21 < num22)
{
newArray[num21].Members[num17].Expression = list9[num21];
num21++;
}
num17++;
}
SqlExpression[] args = new SqlExpression[newArray[0].Args.Count];
int num23 = 0;
int num24 = args.Length;
while (num23 < num24)
{
List <SqlExpression> list10 = new List <SqlExpression>();
int num25 = 0;
int num26 = exprs.Count;
while (num25 < num26)
{
list10.Add(newArray[num25].Args[num23]);
num25++;
}
args[num23] = this.ExpandTogether(list10);
num23++;
}
return(this.factory.New(newArray[0].MetaType, newArray[0].Constructor, args,
newArray[0].ArgMembers, bindings, exprs[0].SourceExpression));
}
case SqlNodeType.OptionalValue:
{
if (exprs[0].SqlType.CanBeColumn)
{
break;
}
List <SqlExpression> list12 = new List <SqlExpression>(exprs.Count);
List <SqlExpression> list13 = new List <SqlExpression>(exprs.Count);
int num40 = 0;
int num41 = exprs.Count;
while (num40 < num41)
{
if ((exprs[num40] == null) || (exprs[num40].NodeType != SqlNodeType.OptionalValue))
{
throw Error.UnionIncompatibleConstruction();
}
SqlOptionalValue value4 = (SqlOptionalValue)exprs[num40];
list12.Add(value4.HasValue);
list13.Add(value4.Value);
num40++;
}
return(new SqlOptionalValue(this.ExpandTogether(list12), this.ExpandTogether(list13)));
}
case SqlNodeType.OuterJoinedValue:
{
if (exprs[0].SqlType.CanBeColumn)
{
break;
}
List <SqlExpression> list14 = new List <SqlExpression>(exprs.Count);
int num42 = 0;
int num43 = exprs.Count;
while (num42 < num43)
{
if ((exprs[num42] == null) || (exprs[num42].NodeType != SqlNodeType.OuterJoinedValue))
{
throw Error.UnionIncompatibleConstruction();
}
SqlUnary unary = (SqlUnary)exprs[num42];
list14.Add(unary.Operand);
num42++;
}
return(this.factory.Unary(SqlNodeType.OuterJoinedValue, this.ExpandTogether(list14)));
}
case SqlNodeType.TypeCase:
{
SqlTypeCase[] caseArray2 = new SqlTypeCase[exprs.Count];
caseArray2[0] = (SqlTypeCase)exprs[0];
for (int num8 = 1; num8 < caseArray2.Length; num8++)
{
caseArray2[num8] = (SqlTypeCase)exprs[num8];
}
List <SqlExpression> list6 = new List <SqlExpression>();
for (int num9 = 0; num9 < caseArray2.Length; num9++)
{
list6.Add(caseArray2[num9].Discriminator);
}
SqlExpression discriminator = this.ExpandTogether(list6);
for (int num10 = 0; num10 < caseArray2.Length; num10++)
{
caseArray2[num10].Discriminator = list6[num10];
}
List <SqlTypeCaseWhen> list7 = new List <SqlTypeCaseWhen>();
for (int num11 = 0; num11 < caseArray2[0].Whens.Count; num11++)
{
List <SqlExpression> list8 = new List <SqlExpression>();
for (int num12 = 0; num12 < caseArray2.Length; num12++)
{
SqlTypeCaseWhen when2 = caseArray2[num12].Whens[num11];
list8.Add(when2.TypeBinding);
}
SqlExpression typeBinding = this.ExpandTogether(list8);
list7.Add(new SqlTypeCaseWhen(caseArray2[0].Whens[num11].Match, typeBinding));
}
return(this.factory.TypeCase(caseArray2[0].ClrType, caseArray2[0].RowType, discriminator,
list7, caseArray2[0].SourceExpression));
}
case SqlNodeType.Value:
{
SqlValue value2 = (SqlValue)exprs[0];
for (int num39 = 1; num39 < exprs.Count; num39++)
{
SqlValue value3 = (SqlValue)exprs[num39];
if (!object.Equals(value3.Value, value2.Value))
{
return(this.ExpandIntoExprSet(exprs));
}
}
return(value2);
}
}
return(this.ExpandIntoExprSet(exprs));
}