public override SqlInfo[] ConvertToSql(Expression expression, int level, ConvertFlags flags)
{
return SubQuery
.ConvertToIndex(expression, level, flags)
.Select(idx => new SqlInfo { Sql = SubQuery.SqlQuery.Select.Columns[idx.Index], Member = idx.Member })
.ToArray();
}
// JoinContext has similar logic. Consider to review it.
//
public override SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags)
{
return ConvertToSql(expression, level, flags)
.Select(idx =>
{
idx.Query = SqlQuery;
idx.Index = GetIndex((SqlQuery.Column)idx.Sql);
return idx;
})
.ToArray();
}
public override SqlInfo[] ConvertToSql(Expression expression, int level, ConvertFlags flags)
{
if (level == 0)
{
switch (flags)
{
case ConvertFlags.Field :
case ConvertFlags.Key :
case ConvertFlags.All :
{
var root = expression.GetRootObject();
if (root.NodeType == ExpressionType.Parameter)
{
var ctx = Parser.GetContext(this, root);
if (ctx != null)
{
if (ctx != this)
return ctx.ConvertToSql(expression, 0, flags);
return root == expression ?
Sequence.ConvertToSql(null, 0, flags) :
Sequence.ConvertToSql(expression, level + 1, flags);
}
}
break;
}
}
throw new NotImplementedException();
}
throw new InvalidOperationException();
//return Array<ISqlExpression>.Empty;
}
public override SqlInfo[] ConvertToSql(Expression expression, int level, ConvertFlags flags)
{
if (level == 0)
{
switch (flags)
{
case ConvertFlags.Field :
case ConvertFlags.Key :
case ConvertFlags.All :
{
var root = expression.GetRootObject();
if (root.NodeType == ExpressionType.Parameter)
{
var ctx = Builder.GetContext(this, root);
if (ctx != null)
{
if (ctx != this)
return ctx.ConvertToSql(expression, 0, flags);
return root == expression ?
Sequence.ConvertToSql(null, 0, flags) :
Sequence.ConvertToSql(expression, level + 1, flags);
}
}
break;
}
}
throw new LinqException("'{0}' cannot be converted to SQL.", expression);
}
throw new InvalidOperationException();
}
public override SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags)
{
return ConvertToSql(expression, level, flags)
.Select(i => { i.Index = GetIndex(i.Sql); return i; })
.ToArray();
}
public override SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags)
{
var sql = ConvertToSql(expression, level, flags);
if (sql[0].Index < 0)
{
sql[0].Index = sql[0].Query.Select.Add(sql[0].Sql);
}
return(sql);
}
public override SqlInfo[] ConvertToIndex(Expression?expression, int level, ConvertFlags flags)
{
var key = Tuple.Create(expression, level, flags);
if (!_expressionIndex.TryGetValue(key, out var info))
{
info = ConvertToSql(expression, level, flags);
foreach (var item in info)
{
item.Query = SelectQuery;
item.Index = SelectQuery.Select.Add(item.Sql);
}
}
return(info);
}
public override SqlInfo[] ConvertToSql(Expression?expression, int level, ConvertFlags flags)
{
return(base.ConvertToSql(expression, level, flags));
}
public SqlInfo[] ConvertToSql(Expression?expression, int level, ConvertFlags flags)
{
if (expression == null)
{
var query = SelectQuery;
var sql = SelectQuery.Select.Columns[0];
if (Parent != null)
{
query = Parent.SelectQuery;
}
return(new[] { new SqlInfo {
Query = query, Sql = sql
} });
}
switch (flags)
{
case ConvertFlags.Field:
{
if (expression.NodeType == ExpressionType.MemberAccess)
{
var memberExpression = (MemberExpression)expression;
foreach (var column in _entityDescriptor.Columns)
{
if (column.MemberInfo.EqualsTo(memberExpression.Member, _elementType))
{
if (!Table.Fields.TryGetValue(column.MemberInfo.Name, out var newField))
{
newField = new SqlField(column);
Table.Add(newField);
for (var i = 0; i < _records.Count; i++)
{
object value;
if (column.MemberInfo.IsPropertyEx())
{
value = ((PropertyInfo)column.MemberInfo).GetValue(_records[i].Value);
}
else if (column.MemberInfo.IsFieldEx())
{
value = ((FieldInfo)column.MemberInfo).GetValue(_records[i].Value);
}
else
{
throw new InvalidOperationException();
}
var valueExpr = Expression.Constant(value, column.MemberType);
var expr = Builder.ConvertToSqlExpression(Parent !, valueExpr);
if (expr is SqlParameter p)
{
// avoid parameters is source, because their number is limited
p.IsQueryParameter = !Builder.MappingSchema.ValueToSqlConverter.CanConvert(p.Type.SystemType);
p.Type = p.Type.WithoutSystemType(column);
}
else if (expr is SqlValue val)
{
val.ValueType = val.ValueType.WithoutSystemType(column);
}
Table.Rows[i].Add(expr);
}
}
return(new[]
{
new SqlInfo(column.MemberInfo)
{
Sql = newField,
Query = SelectQuery
}
});
}
}
}
break;
}
}
throw new NotImplementedException();
}
public override SqlInfo[] ConvertToSql(Expression expression, int level, ConvertFlags flags)
{
if (_isObject)
{
switch (flags)
{
case ConvertFlags.All:
case ConvertFlags.Key:
if (expression == null)
{
return(_members.Values
.Select(m => ConvertToSql(m.MemberExpression, 0, ConvertFlags.Field)[0])
.ToArray());
}
break;
case ConvertFlags.Field:
if (expression != null && (level == 0 || level == 1) && expression.NodeType == ExpressionType.MemberAccess)
{
var levelExpression = expression.GetLevelExpression(1);
if (expression == levelExpression)
{
var ma = (MemberExpression)expression;
Member member;
if (!_members.TryGetValue(ma.Member, out member))
{
var ed = Builder.MappingSchema.GetEntityDescriptor(_type);
if (ed.Aliases != null && ed.Aliases.ContainsKey(ma.Member.Name))
{
var alias = ed[ma.Member.Name];
if (alias != null)
{
var cd = ed[alias.MemberName];
if (cd != null)
{
_members.TryGetValue(cd.MemberInfo, out member);
}
}
}
}
if (member == null)
{
throw new LinqToDBException(
string.Format("Expression '{0}' is not a field.", expression));
}
if (member.SqlQueryInfo == null)
{
member.SqlQueryInfo = new SqlInfo(member.MemberExpression.Member)
{
Index = -2,
Sql = SubQuery.SelectQuery.Select.Columns[member.SequenceInfo.Index],
Query = SelectQuery,
};
}
return(new[] { member.SqlQueryInfo });
}
}
break;
}
throw new InvalidOperationException();
}
return(base.ConvertToSql(expression, level, flags));
}
public override SqlInfo[] ConvertToIndex(Expression?expression, int level, ConvertFlags flags)
{
return(flags switch
{
ConvertFlags.Field =>
_index ??= new[]
{
new SqlInfo(Sql !, Parent !.SelectQuery, Parent.SelectQuery.Select.Add(Sql !))
},
public override SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags)
{
if (Collection != null)
{
if (expression == null)
{
return(Collection.ConvertToIndex(expression, level, flags));
}
var root = expression.GetRootObject();
if (root != Lambda.Parameters[0])
{
return(Collection.ConvertToIndex(expression, level, flags));
}
}
return(base.ConvertToIndex(expression, level, flags));
}
/// <summary>
/// Pops a value from the stack that can be used in the context of
/// compare operations.
/// </summary>
/// <param name="location">The current location.</param>
/// <param name="flags">The conversion flags.</param>
/// <returns>
/// The popped value from the stack that can be used in the
/// context of compare and arithmetic operations.</returns>
public Value PopCompareValue(Location location, ConvertFlags flags) =>
PeekBasicValueType(location) == BasicValueType.Int1
? Pop()
: PopCompareOrArithmeticValue(location, flags);
public override SqlInfo[] ConvertToSql(Expression?expression, int level, ConvertFlags flags)
{
switch (flags)
{
case ConvertFlags.Field: return(new[] { new SqlInfo(Sql !, Parent !.SelectQuery) });
public virtual SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags)
{
return(Context.ConvertToIndex(expression, level, flags));
}
Convert(String str, ConvertFlags wideFlag, ConvertFlags narrowFlag)
{
StringBuilder sb = new StringBuilder();
//Console.WriteLine("Convert In: {0}", str);
for (Int32 i = 0; i < str.Length; i++)
{
Char c = str[i];
Boolean isNextDakuten = (str.Length > i + 1 ? (str[i + 1] == 'ﾞ') : false);
Boolean isNextHanDakuten = (str.Length > i + 1 ? (str[i + 1] == 'ﾟ') : false);
//Console.WriteLine(" - char: {0}", c);
//Console.WriteLine(" - isNextDakuten: {0}", isNextDakuten);
//Console.WriteLine(" - isNextHanDakuten: {0}", isNextHanDakuten);
if (((narrowFlag & ConvertFlags.Katakana) != 0) && _tableZenkakuToHankaku.ContainsKey(c))
{
// 全角カナ -> 半角カナ
sb.Append(_tableZenkakuToHankaku[c]);
}
else if (((wideFlag & ConvertFlags.Katakana) != 0) && (c >= '｡' && c <= 'ﾟ'))
{
// 半角カナ -> 全角カナ
Int32 col = (c - 'ｱ') / 5; // アカサタナ行
Int32 row = (c - 'ｱ') % 5; // アイウエオ
//Console.WriteLine(" - char: {0} at {1} - {2}", c, col, row);
if (isNextDakuten)
{
switch (col)
{
case 1:
case 2:
case 3:
case 5:
//Console.WriteLine(" -> {0}", _tableHankakuToZenkakuDakuten[col, row]);
sb.Append(_tableHankakuToZenkakuDakuten[col, row]);
i++;
break;
default:
if (c == 'ｳ')
{
sb.Append('ヴ');
i++;
}
break;
}
}
else if (isNextHanDakuten && col == 5)
{
sb.Append(_tableHankakuToZenkakuHanDakuten[row]);
i++;
}
else
{
//Console.WriteLine(" -> {0}", _tableHankakuToZenkaku[(c - '｡')]);
sb.Append(_tableHankakuToZenkaku[(c - '｡')]);
}
}
else if (((wideFlag & ConvertFlags.Alphabet) != 0) && (c >= '!' && c <= '~' && (c < '0' || c > '9')))
{
// 半角アルファベット -> 全角アルファベット
sb.Append((Char)('！' + (c - '!')));
}
else if (((narrowFlag & ConvertFlags.Alphabet) != 0) && (c >= '！' && c <= '〜' && (c < '０' || c > '９')))
{
// 全角アルファベット -> 半角アルファベット
sb.Append((Char)('!' + (c - '！')));
}
else if (((wideFlag & ConvertFlags.Numeric) != 0) && (c >= '0' && c <= '9'))
{
// 半角数字 -> 全角数字
sb.Append((Char)('０' + (c - '0')));
}
else if (((narrowFlag & ConvertFlags.Numeric) != 0) && (c >= '０' && c <= '９'))
{
// 全角数字 -> 半角数字
sb.Append((Char)('0' + (c - '０')));
}
else if (((wideFlag & ConvertFlags.Space) != 0) && (c == ' '))
{
// 半角空白 -> 全角空白
sb.Append(' ');
}
else if (((narrowFlag & ConvertFlags.Space) != 0) && (c == ' '))
{
// 全角空白 -> 半角空白
sb.Append(' ');
}
else
{
sb.Append(c);
}
}
return(sb.ToString());
}
public override SqlInfo[] ConvertToSql(Expression expression, int level, ConvertFlags flags)
{
if (expression == null)
{
return(_key.ConvertToSql(null, 0, flags));
}
if (level > 0)
{
switch (expression.NodeType)
{
case ExpressionType.Call:
{
var e = (MethodCallExpression)expression;
if (e.Method.DeclaringType == typeof(Enumerable))
{
return(new[] { new SqlInfo {
Sql = ConvertEnumerable(e)
} });
}
break;
}
case ExpressionType.MemberAccess:
{
var levelExpression = expression.GetLevelExpression(level);
if (levelExpression.NodeType == ExpressionType.MemberAccess)
{
var e = (MemberExpression)levelExpression;
if (e.Member.Name == "Key")
{
if (_keyProperty == null)
{
_keyProperty = _groupingType.GetPropertyEx("Key");
}
if (e.Member == _keyProperty)
{
if (ReferenceEquals(levelExpression, expression))
{
return(_key.ConvertToSql(null, 0, flags));
}
return(_key.ConvertToSql(expression, level + 1, flags));
}
}
return(Sequence.ConvertToSql(expression, level, flags));
}
break;
}
}
}
throw new NotImplementedException();
}
public SqlInfo[] ParseExpressions(IParseContext context, Expression expression, ConvertFlags queryConvertFlag)
{
switch (expression.NodeType)
{
case ExpressionType.New :
{
var expr = (NewExpression)expression;
// ReSharper disable ConditionIsAlwaysTrueOrFalse
// ReSharper disable HeuristicUnreachableCode
if (expr.Members == null)
return Array<SqlInfo>.Empty;
// ReSharper restore HeuristicUnreachableCode
// ReSharper restore ConditionIsAlwaysTrueOrFalse
return expr.Arguments
.Select((arg,i) =>
{
var sql = ParseExpression(context, arg);
var mi = expr.Members[i];
if (mi is MethodInfo)
mi = TypeHelper.GetPropertyByMethod((MethodInfo)mi);
return new SqlInfo { Sql = sql, Member = mi };
})
.ToArray();
}
case ExpressionType.MemberInit :
{
var expr = (MemberInitExpression)expression;
return expr.Bindings
.Where(b => b is MemberAssignment)
.Cast<MemberAssignment>()
.Select(a =>
{
var sql = ParseExpression(context, a.Expression);
var mi = a.Member;
if (mi is MethodInfo)
mi = TypeHelper.GetPropertyByMethod((MethodInfo)mi);
return new SqlInfo { Sql = sql, Member = mi };
})
.ToArray();
}
}
var ctx = GetContext(context, expression);
if (ctx != null)
{
if (ctx.IsExpression(expression, 0, RequestFor.Object))
return ctx.ConvertToSql(expression, 0, queryConvertFlag);
}
return new[] { new SqlInfo { Sql = ParseExpression(context, expression) } };
}
/// <summary>
/// Converts the given flags into source unsigned flags.
/// </summary>
/// <param name="flags">The flags to convert.</param>
/// <returns>The converted flags.</returns>
internal static ConvertFlags ToSourceUnsignedFlags(this ConvertFlags flags) =>
(flags & ConvertFlags.TargetUnsigned) != ConvertFlags.TargetUnsigned
? flags
: (flags & ~ConvertFlags.TargetUnsigned) | ConvertFlags.SourceUnsigned;
public override SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags)
{
return(ConvertToSql(expression, level, flags)
.Select(i => { i.Index = GetIndex(i.Sql); return i; })
.ToArray());
}
public override SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags)
{
if (_isObject)
{
return(ConvertToSql(expression, level, flags)
.Select(idx =>
{
if (idx.Index < 0)
{
if (idx.Index == -2)
{
SelectQuery.Select.Columns.Add(new SelectQuery.Column(SelectQuery, idx.Sql));
idx.Index = SelectQuery.Select.Columns.Count - 1;
}
else
{
idx.Index = SelectQuery.Select.Add(idx.Sql);
}
}
return idx;
})
.ToArray());
}
return(base.ConvertToIndex(expression, level, flags));
}
Convert(String str, ConvertFlags wideFlag, ConvertFlags narrowFlag)
{
StringBuilder sb = new StringBuilder();
//Console.WriteLine("Convert In: {0}", str);
for (Int32 i = 0; i < str.Length; i++) {
Char c = str[i];
Boolean isNextDakuten = (str.Length > i+1 ? (str[i+1] == 'ﾞ') : false);
Boolean isNextHanDakuten = (str.Length > i+1 ? (str[i+1] == 'ﾟ') : false);
//Console.WriteLine(" - char: {0}", c);
//Console.WriteLine(" - isNextDakuten: {0}", isNextDakuten);
//Console.WriteLine(" - isNextHanDakuten: {0}", isNextHanDakuten);
if (((narrowFlag & ConvertFlags.Katakana) != 0) && _tableZenkakuToHankaku.ContainsKey(c)) {
// 全角カナ -> 半角カナ
sb.Append(_tableZenkakuToHankaku[c]);
} else if (((wideFlag & ConvertFlags.Katakana) != 0) && (c >= '｡' && c <= 'ﾟ')) {
// 半角カナ -> 全角カナ
Int32 col = (c - 'ｱ') / 5; // アカサタナ行
Int32 row = (c - 'ｱ') % 5; // アイウエオ
//Console.WriteLine(" - char: {0} at {1} - {2}", c, col, row);
if (isNextDakuten) {
switch (col) {
case 1: case 2: case 3: case 5:
//Console.WriteLine(" -> {0}", _tableHankakuToZenkakuDakuten[col, row]);
sb.Append(_tableHankakuToZenkakuDakuten[col, row]);
i++;
break;
default:
if (c == 'ｳ') {
sb.Append('ヴ');
i++;
}
break;
}
} else if (isNextHanDakuten && col == 5) {
sb.Append(_tableHankakuToZenkakuHanDakuten[row]);
i++;
} else {
//Console.WriteLine(" -> {0}", _tableHankakuToZenkaku[(c - '｡')]);
sb.Append(_tableHankakuToZenkaku[(c - '｡')]);
}
} else if (((wideFlag & ConvertFlags.Alphabet) != 0) && (c >= '!' && c <= '~' && (c < '0' || c > '9'))) {
// 半角アルファベット -> 全角アルファベット
sb.Append((Char)('！' + (c - '!')));
} else if (((narrowFlag & ConvertFlags.Alphabet) != 0) && (c >= '！' && c <= '〜' && (c < '０' || c > '９'))) {
// 全角アルファベット -> 半角アルファベット
sb.Append((Char)('!' + (c - '！')));
} else if (((wideFlag & ConvertFlags.Numeric) != 0) && (c >= '0' && c <= '9')) {
// 半角数字 -> 全角数字
sb.Append((Char)('０' + (c - '0')));
} else if (((narrowFlag & ConvertFlags.Numeric) != 0) && (c >= '０' && c <= '９')) {
// 全角数字 -> 半角数字
sb.Append((Char)('0' + (c - '０')));
} else if (((wideFlag & ConvertFlags.Space) != 0) && (c == ' ')) {
// 半角空白 -> 全角空白
sb.Append(' ');
} else if (((narrowFlag & ConvertFlags.Space) != 0) && (c == ' ')) {
// 全角空白 -> 半角空白
sb.Append(' ');
} else {
sb.Append(c);
}
}
return sb.ToString();
}
public abstract SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags);
public override SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags)
{
if (_innerContext != null)
{
return(_innerContext.ConvertToIndex(expression, level, flags));
}
return(base.ConvertToIndex(expression, level, flags));
}
public override SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags)
{
throw new NotImplementedException();
}
public SqlInfo[] ConvertToSql(Expression?expression, int level, ConvertFlags flags)
{
throw new NotImplementedException();
}
public override SqlInfo[] ConvertToSql(Expression?expression, int level, ConvertFlags flags)
{
if (expression == null)
{
if (flags == ConvertFlags.Field && !_key.IsScalar)
{
return(_element.ConvertToSql(null, 0, flags));
}
var keys = _key.ConvertToSql(null, 0, flags);
foreach (var key in keys)
{
key.MemberChain.Add(_keyProperty !);
}
return(keys);
}
if (level == 0 && expression.NodeType == ExpressionType.MemberAccess)
{
level = level + 1;
}
if (level > 0)
{
switch (expression.NodeType)
{
case ExpressionType.Call:
{
var e = (MethodCallExpression)expression;
if (e.IsQueryable() || e.IsAggregate(Builder.MappingSchema))
{
return(new[] { new SqlInfo {
Sql = ConvertEnumerable(e)
} });
}
break;
}
case ExpressionType.MemberAccess:
{
var levelExpression = expression.GetLevelExpression(Builder.MappingSchema, level);
if (levelExpression.NodeType == ExpressionType.MemberAccess)
{
var e = (MemberExpression)levelExpression;
if (e.Member.Name == "Key")
{
if (_keyProperty == null)
{
_keyProperty = _groupingType.GetProperty("Key");
}
if (e.Member == _keyProperty)
{
if (ReferenceEquals(levelExpression, expression))
{
return(_key.ConvertToSql(null, 0, flags));
}
return(_key.ConvertToSql(expression, level + 1, flags));
}
}
return(Sequence.ConvertToSql(expression, level, flags));
}
break;
}
}
}
throw new LinqException("Expression '{0}' cannot be converted to SQL.", expression);
}
public override SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags)
{
throw new InvalidOperationException();
}
public override SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags)
{
return(Sequence.ConvertToIndex(expression, level, flags));
}
public override SqlInfo[] ConvertToSql(Expression?expression, int level, ConvertFlags flags)
{
return(flags switch
{
ConvertFlags.Field => new[] { new SqlInfo(Sql !, Parent !.SelectQuery) },
public override SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags)
{
switch (flags)
{
case ConvertFlags.Field:
return(_index ?? (_index = new[]
{
new SqlInfo {
Query = Parent.SelectQuery, Index = Parent.SelectQuery.Select.Add(Sql), Sql = Sql,
}
}));
}
throw new InvalidOperationException();
}
public virtual SqlInfo[] ConvertToSql(Expression expression, int level, ConvertFlags flags)
{
if (expression != null && level > 0 && expression.NodeType == ExpressionType.Call)
{
var e = (MethodCallExpression)expression;
if (e.Method.DeclaringType == typeof(Enumerable))
{
return(new[] { new SqlInfo {
Sql = Builder.SubQueryToSql(this, e)
} });
}
}
if (IsScalar)
{
if (expression == null)
{
return(Builder.ConvertExpressions(this, Body, flags));
}
switch (flags)
{
case ConvertFlags.Field:
case ConvertFlags.Key:
case ConvertFlags.All:
{
if (Body.NodeType != ExpressionType.Parameter && level == 0)
{
var levelExpression = expression.GetLevelExpression(level);
if (levelExpression != expression)
{
if (flags != ConvertFlags.Field && IsExpression(expression, level, RequestFor.Field).Result)
{
flags = ConvertFlags.Field;
}
}
}
return(ProcessScalar(
expression,
level,
(ctx, ex, l) => ctx.ConvertToSql(ex, l, flags),
() => new[] { new SqlInfo {
Sql = Builder.ConvertToSql(this, expression)
} }));
}
}
}
else
{
if (expression == null)
{
if (flags != ConvertFlags.Field)
{
var q =
from m in Members
where !(m.Key is MethodInfo)
select ConvertMember(m.Key, m.Value, flags) into mm
from m in mm
select m;
return(q.ToArray());
}
throw new NotImplementedException();
}
switch (flags)
{
case ConvertFlags.All:
case ConvertFlags.Key:
case ConvertFlags.Field:
{
var levelExpression = expression.GetLevelExpression(level);
switch (levelExpression.NodeType)
{
case ExpressionType.MemberAccess:
{
if (level != 0 && levelExpression == expression)
{
var member = ((MemberExpression)levelExpression).Member;
SqlInfo[] sql;
if (!_sql.TryGetValue(member, out sql))
{
var memberExpression = GetMemberExpression(
member, levelExpression == expression, levelExpression.Type, expression);
sql = ConvertExpressions(memberExpression, flags)
.Select(si => si.Clone(member)).ToArray();
_sql.Add(member, sql);
}
return(sql);
}
return(ProcessMemberAccess(
expression, (MemberExpression)levelExpression, level,
(n, ctx, ex, l, mex) =>
{
switch (n)
{
case 0:
var buildExpression = GetExpression(expression, levelExpression, mex);
return ConvertExpressions(buildExpression, flags);
default:
return ctx.ConvertToSql(ex, l, flags);
}
}));
}
case ExpressionType.Parameter:
if (levelExpression != expression)
{
return(GetSequence(expression, level).ConvertToSql(expression, level + 1, flags));
}
if (level == 0)
{
return(GetSequence(expression, level).ConvertToSql(null, 0, flags));
}
break;
default:
if (level == 0)
{
return(Builder.ConvertExpressions(this, expression, flags));
}
break;
}
break;
}
}
}
throw new NotImplementedException();
}
public override SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags)
{
throw new InvalidOperationException();
}
public override SqlInfo[] ConvertToIndex(Expression?expression, int level, ConvertFlags flags)
{
switch (flags)
{
case ConvertFlags.Field:
{
var result = _index ??= new[]
{
new SqlInfo(Sql !, Parent !.SelectQuery, Parent.SelectQuery.Select.Add(Sql !))
};
return(result);
}
}
throw new InvalidOperationException();
}
SqlInfo[] ConvertMember(MemberInfo member, Expression expression, ConvertFlags flags)
{
return(ConvertExpressions(expression, flags)
.Select(si => si.Clone(member))
.ToArray());
}
public virtual SqlInfo[] ConvertToSql(Expression expression, int level, ConvertFlags flags)
{
if (IsScalar)
{
if (expression == null)
return Builder.ConvertExpressions(this, Body, flags);
switch (flags)
{
case ConvertFlags.Field :
case ConvertFlags.Key :
case ConvertFlags.All :
{
if (Body.NodeType != ExpressionType.Parameter && level == 0)
{
var levelExpression = expression.GetLevelExpression(level);
if (levelExpression != expression)
if (flags != ConvertFlags.Field && IsExpression(expression, level, RequestFor.Field))
flags = ConvertFlags.Field;
}
return ProcessScalar(
expression,
level,
(ctx, ex, l) => ctx.ConvertToSql(ex, l, flags),
() => new[] { new SqlInfo { Sql = Builder.ConvertToSql(this, expression) } });
}
}
}
else
{
if (expression == null)
{
if (flags != ConvertFlags.Field)
{
var q =
from m in Members
where !(m.Key is MethodInfo)
select ConvertMember(m.Key, m.Value, flags) into mm
from m in mm
select m;
return q.ToArray();
}
throw new NotImplementedException();
}
switch (flags)
{
case ConvertFlags.All :
case ConvertFlags.Key :
case ConvertFlags.Field :
{
var levelExpression = expression.GetLevelExpression(level);
switch (levelExpression.NodeType)
{
case ExpressionType.MemberAccess :
{
if (level != 0 && levelExpression == expression)
{
var member = ((MemberExpression)levelExpression).Member;
SqlInfo[] sql;
if (!_sql.TryGetValue(member, out sql))
{
sql = ConvertExpressions(Members[member], flags);
if (sql.Length == 1)
sql[0].Member = member;
_sql.Add(member, sql);
}
return sql;
}
return ProcessMemberAccess(
expression, levelExpression, level,
(n,ctx,ex,l,mex) =>
{
switch (n)
{
case 0 :
//case 2 :
var buildExpression = GetExpression(expression, levelExpression, mex);
return ConvertExpressions(buildExpression, flags);
default:
return ctx.ConvertToSql(ex, l, flags);
}
});
}
case ExpressionType.Parameter:
if (levelExpression != expression)
return GetSequence(expression, level).ConvertToSql(expression, level + 1, flags);
if (level == 0)
return GetSequence(expression, level).ConvertToSql(null, 0, flags);
break;
}
break;
}
}
}
throw new NotImplementedException();
}
public override SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags)
{
return Sequence.ConvertToIndex(expression, level, flags);
}
SqlInfo[] ConvertExpressions(Expression expression, ConvertFlags flags)
{
return(Builder.ConvertExpressions(this, expression, flags)
.Select(CheckExpression)
.ToArray());
}
SqlInfo[] ConvertToIndexInternal(Expression expression, int level, ConvertFlags flags)
{
if (IsScalar)
{
if (Body.NodeType == ExpressionType.Parameter)
{
for (var i = 0; i < Sequence.Length; i++)
{
if (Body == Lambda.Parameters[i])
{
return(Sequence[i].ConvertToIndex(expression, level, flags));
}
}
}
if (expression == null)
{
var key = Tuple.Create((MemberInfo)null, flags);
SqlInfo[] idx;
if (!_memberIndex.TryGetValue(key, out idx))
{
idx = ConvertToSql(null, 0, flags);
foreach (var info in idx)
{
SetInfo(info);
}
_memberIndex.Add(key, idx);
}
return(idx);
}
switch (flags)
{
case ConvertFlags.Field:
case ConvertFlags.All:
return(ProcessScalar(
expression,
level,
(ctx, ex, l) => ctx.ConvertToIndex(ex, l, flags),
() => GetSequence(expression, level).ConvertToIndex(expression, level + 1, flags)));
}
}
else
{
if (expression == null)
{
switch (flags)
{
case ConvertFlags.Field:
case ConvertFlags.Key:
case ConvertFlags.All:
{
var p = Expression.Parameter(Body.Type, "p");
var q =
from m in Members.Keys
where !(m is MethodInfo)
select new SqlData
{
Sql = ConvertToIndex(Expression.MakeMemberAccess(p, m), 1, flags),
Member = m
} into mm
from m in mm.Sql.Select(s => s.Clone(mm.Member))
select m;
return(q.ToArray());
}
}
}
switch (flags)
{
case ConvertFlags.All:
case ConvertFlags.Key:
case ConvertFlags.Field:
{
if (level == 0)
{
var idx = Builder.ConvertExpressions(this, expression, flags);
foreach (var info in idx)
{
SetInfo(info);
}
return(idx);
}
var levelExpression = expression.GetLevelExpression(level);
switch (levelExpression.NodeType)
{
case ExpressionType.MemberAccess:
{
if (levelExpression == expression)
{
var member = Tuple.Create(((MemberExpression)levelExpression).Member, flags);
SqlInfo[] idx;
if (!_memberIndex.TryGetValue(member, out idx))
{
idx = ConvertToSql(expression, level, flags);
if (flags == ConvertFlags.Field && idx.Length != 1)
{
throw new InvalidOperationException();
}
foreach (var info in idx)
{
SetInfo(info);
}
_memberIndex.Add(member, idx);
}
return(idx);
}
return(ProcessMemberAccess(
expression,
(MemberExpression)levelExpression,
level,
(n, ctx, ex, l, _) => n == 0 ?
GetSequence(expression, level).ConvertToIndex(expression, level + 1, flags) :
ctx.ConvertToIndex(ex, l, flags)));
}
case ExpressionType.Parameter:
if (levelExpression != expression)
{
return(GetSequence(expression, level).ConvertToIndex(expression, level + 1, flags));
}
break;
}
break;
}
}
}
throw new NotImplementedException();
}
public override SqlInfo[] ConvertToIndex(Expression expression, int level, ConvertFlags flags)
{
if (expression != null && expression == _counterExpression)
return _counterInfo ?? (_counterInfo = new[]
{
new SqlInfo
{
Query = CounterSql.ParentSql,
Index = CounterSql.ParentSql.Select.Add(CounterSql),
Sql = CounterSql
}
});
return base.ConvertToIndex(expression, level, flags);
}
