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- 增加 "x1".First/FirstOrDefault 表达式函数解析；

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This commit is contained in:
28810
2020-07-31 02:28:37 +08:00
parent f63a69c55c
commit af153295f8
33 changed files with 364 additions and 1 deletions
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4
FreeSql/Internal/CommonExpression.cs
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@ -41,6 +41,7 @@ namespace FreeSql.Internal
field.Append(", ").Append(parent.DbField);
if (index >= 0) field.Append(_common.FieldAsAlias($"as{++index}"));
else if (index == ReadAnonymousFieldAsCsName && string.IsNullOrEmpty(parent.CsName) == false) field.Append(_common.FieldAsAlias(parent.CsName));
if (parent.CsType == null) parent.CsType = exp.Type;
return false;
case ExpressionType.Convert: return ReadAnonymousField(_tables, field, parent, ref index, (exp as UnaryExpression)?.Operand, getSelectGroupingMapString, whereCascadeExpression, isAllDtoMap);
case ExpressionType.Constant:
@ -60,6 +61,7 @@ namespace FreeSql.Internal
field.Append(", ").Append(parent.DbField);
if (index >= 0) field.Append(_common.FieldAsAlias($"as{++index}"));
else if (index == ReadAnonymousFieldAsCsName && string.IsNullOrEmpty(parent.CsName) == false) field.Append(_common.FieldAsAlias(parent.CsName));
if (parent.CsType == null) parent.CsType = exp.Type;
return false;
case ExpressionType.Call:
var callExp = exp as MethodCallExpression;
@ -77,6 +79,7 @@ namespace FreeSql.Internal
field.Append(", ").Append(parent.DbField);
if (index >= 0) field.Append(_common.FieldAsAlias($"as{++index}"));
else if (index == ReadAnonymousFieldAsCsName && string.IsNullOrEmpty(parent.CsName) == false) field.Append(_common.FieldAsAlias(parent.CsName));
if (parent.CsType == null) parent.CsType = exp.Type;
return false;
case ExpressionType.Parameter:
case ExpressionType.MemberAccess:
@ -262,6 +265,7 @@ namespace FreeSql.Internal
field.Append(", ").Append(parent.DbField);
if (index >= 0) field.Append(_common.FieldAsAlias($"as{++index}"));
else if (index == ReadAnonymousFieldAsCsName && string.IsNullOrEmpty(parent.CsName) == false) field.Append(_common.FieldAsAlias(parent.CsName));
if (parent.CsType == null) parent.CsType = exp.Type;
return false;
}
public object ReadAnonymous(ReadAnonymousTypeInfo parent, DbDataReader dr, ref int index, bool notRead, ReadAnonymousDbValueRef dbValue)