@ -0,0 +1,463 @@
using FreeSql.DataAnnotations ;
using FreeSql.Internal.Model ;
using Newtonsoft.Json.Linq ;
using Npgsql.LegacyPostgis ;
using NpgsqlTypes ;
using System ;
using System.Collections ;
using System.Collections.Concurrent ;
using System.Collections.Generic ;
using System.Diagnostics ;
using System.Linq ;
using System.Linq.Expressions ;
using System.Net ;
using System.Net.NetworkInformation ;
using System.Reflection ;
using System.Text.RegularExpressions ;
using System.Threading ;
namespace FreeSql.Internal {
class Utils {
static ConcurrentDictionary < string , TableInfo > _cacheGetTableByEntity = new ConcurrentDictionary < string , TableInfo > ( ) ;
internal static TableInfo GetTableByEntity ( Type entity , CommonUtils common ) {
if ( entity . FullName . StartsWith ( "<>f__AnonymousType" ) ) return null ;
if ( _cacheGetTableByEntity . TryGetValue ( $"{common.DbName}-{entity.FullName}" , out var trytb ) ) return trytb ; //区分数据库类型缓存
if ( common . CodeFirst . GetDbInfo ( entity ) ! = null ) return null ;
var tbattr = entity . GetCustomAttributes ( typeof ( TableAttribute ) , false ) . LastOrDefault ( ) as TableAttribute ;
trytb = new TableInfo ( ) ;
trytb . Type = entity ;
trytb . Properties = entity . GetProperties ( ) . ToDictionary ( a = > a . Name , a = > a , StringComparer . CurrentCultureIgnoreCase ) ;
trytb . CsName = entity . Name ;
trytb . DbName = ( tbattr ? . Name ? ? entity . Name ) ;
trytb . DbOldName = tbattr ? . OldName ;
if ( common . CodeFirst . IsSyncStructureToLower ) {
trytb . DbName = trytb . DbName . ToLower ( ) ;
trytb . DbOldName = trytb . DbOldName ? . ToLower ( ) ;
}
trytb . SelectFilter = tbattr ? . SelectFilter ;
foreach ( var p in trytb . Properties . Values ) {
var tp = common . CodeFirst . GetDbInfo ( p . PropertyType ) ;
//if (tp == null) continue;
var colattr = p . GetCustomAttributes ( typeof ( ColumnAttribute ) , false ) . LastOrDefault ( ) as ColumnAttribute ;
if ( tp = = null & & colattr = = null ) continue ;
if ( colattr = = null )
colattr = new ColumnAttribute {
Name = p . Name ,
DbType = tp . Value . dbtypeFull ,
IsIdentity = false ,
IsNullable = tp . Value . isnullable ? ? true ,
IsPrimary = false ,
} ;
if ( string . IsNullOrEmpty ( colattr . DbType ) ) colattr . DbType = tp ? . dbtypeFull ? ? "varchar(255)" ;
colattr . DbType = colattr . DbType . ToUpper ( ) ;
if ( tp ! = null & & tp . Value . isnullable = = null ) colattr . IsNullable = tp . Value . dbtypeFull . Contains ( "NOT NULL" ) = = false ;
if ( colattr . DbType ? . Contains ( "NOT NULL" ) = = true ) colattr . IsNullable = false ;
if ( string . IsNullOrEmpty ( colattr . Name ) ) colattr . Name = p . Name ;
if ( common . CodeFirst . IsSyncStructureToLower ) colattr . Name = colattr . Name . ToLower ( ) ;
if ( ( colattr . IsNullable = = false | | colattr . IsIdentity | | colattr . IsPrimary ) & & colattr . DbType . Contains ( "NOT NULL" ) = = false ) {
colattr . IsNullable = false ;
colattr . DbType + = " NOT NULL" ;
}
if ( colattr . IsNullable = = true & & colattr . DbType . Contains ( "NOT NULL" ) ) colattr . DbType = colattr . DbType . Replace ( "NOT NULL" , "" ) ;
colattr . DbType = Regex . Replace ( colattr . DbType , @"\([^\)]+\)" , m = > {
var tmpLt = Regex . Replace ( m . Groups [ 0 ] . Value , @"\s" , "" ) ;
if ( tmpLt . Contains ( "CHAR" ) ) tmpLt = tmpLt . Replace ( "CHAR" , " CHAR" ) ;
if ( tmpLt . Contains ( "BYTE" ) ) tmpLt = tmpLt . Replace ( "BYTE" , " BYTE" ) ;
return tmpLt ;
} ) ;
colattr . DbDefautValue = trytb . Properties [ p . Name ] . GetValue ( Activator . CreateInstance ( trytb . Type ) ) ;
if ( colattr . DbDefautValue = = null ) colattr . DbDefautValue = tp ? . defaultValue ;
if ( colattr . IsNullable = = false & & colattr . DbDefautValue = = null ) {
var consturctorType = p . PropertyType . GenericTypeArguments . FirstOrDefault ( ) ? ? p . PropertyType ;
colattr . DbDefautValue = Activator . CreateInstance ( consturctorType ) ;
}
var col = new ColumnInfo {
Table = trytb ,
CsName = p . Name ,
CsType = p . PropertyType ,
Attribute = colattr
} ;
trytb . Columns . Add ( colattr . Name , col ) ;
trytb . ColumnsByCs . Add ( p . Name , col ) ;
}
trytb . Primarys = trytb . Columns . Values . Where ( a = > a . Attribute . IsPrimary ) . ToArray ( ) ;
if ( trytb . Primarys . Any ( ) = = false ) {
trytb . Primarys = trytb . Columns . Values . Where ( a = > a . Attribute . IsIdentity ) . ToArray ( ) ;
foreach ( var col in trytb . Primarys )
col . Attribute . IsPrimary = true ;
}
_cacheGetTableByEntity . TryAdd ( entity . FullName , trytb ) ;
return trytb ;
}
internal static T [ ] GetDbParamtersByObject < T > ( string sql , object obj , string paramPrefix , Func < string , Type , object , T > constructorParamter ) {
if ( string . IsNullOrEmpty ( sql ) | | obj = = null ) return new T [ 0 ] ;
var ttype = typeof ( T ) ;
var type = obj . GetType ( ) ;
if ( type = = ttype ) return new [ ] { ( T ) Convert . ChangeType ( obj , type ) } ;
var ret = new List < T > ( ) ;
var ps = type . GetProperties ( ) ;
foreach ( var p in ps ) {
if ( sql . IndexOf ( $"{paramPrefix}{p.Name}" , StringComparison . CurrentCultureIgnoreCase ) = = - 1 ) continue ;
var pvalue = p . GetValue ( obj ) ;
if ( p . PropertyType = = ttype ) ret . Add ( ( T ) Convert . ChangeType ( pvalue , ttype ) ) ;
else ret . Add ( constructorParamter ( p . Name , p . PropertyType , pvalue ) ) ;
}
return ret . ToArray ( ) ;
}
static Dictionary < Type , bool > dicExecuteArrayRowReadClassOrTuple = new Dictionary < Type , bool > {
[typeof(bool)] = true ,
[typeof(sbyte)] = true ,
[typeof(short)] = true ,
[typeof(int)] = true ,
[typeof(long)] = true ,
[typeof(byte)] = true ,
[typeof(ushort)] = true ,
[typeof(uint)] = true ,
[typeof(ulong)] = true ,
[typeof(double)] = true ,
[typeof(float)] = true ,
[typeof(decimal)] = true ,
[typeof(TimeSpan)] = true ,
[typeof(DateTime)] = true ,
[typeof(DateTimeOffset)] = true ,
[typeof(byte[] ) ] = true ,
[typeof(string)] = true ,
[typeof(Guid)] = true ,
[typeof(MygisPoint)] = true ,
[typeof(MygisLineString)] = true ,
[typeof(MygisPolygon)] = true ,
[typeof(MygisMultiPoint)] = true ,
[typeof(MygisMultiLineString)] = true ,
[typeof(MygisMultiPolygon)] = true ,
[typeof(BitArray)] = true ,
[typeof(NpgsqlPoint)] = true ,
[typeof(NpgsqlLine)] = true ,
[typeof(NpgsqlLSeg)] = true ,
[typeof(NpgsqlBox)] = true ,
[typeof(NpgsqlPath)] = true ,
[typeof(NpgsqlPolygon)] = true ,
[typeof(NpgsqlCircle)] = true ,
[typeof((IPAddress Address, int Subnet))] = true ,
[typeof(IPAddress)] = true ,
[typeof(PhysicalAddress)] = true ,
[typeof(NpgsqlRange<int>)] = true ,
[typeof(NpgsqlRange<long>)] = true ,
[typeof(NpgsqlRange<decimal>)] = true ,
[typeof(NpgsqlRange<DateTime>)] = true ,
[typeof(PostgisPoint)] = true ,
[typeof(PostgisLineString)] = true ,
[typeof(PostgisPolygon)] = true ,
[typeof(PostgisMultiPoint)] = true ,
[typeof(PostgisMultiLineString)] = true ,
[typeof(PostgisMultiPolygon)] = true ,
[typeof(PostgisGeometry)] = true ,
[typeof(PostgisGeometryCollection)] = true ,
[typeof(Dictionary<string, string>)] = true ,
[typeof(JToken)] = true ,
[typeof(JObject)] = true ,
[typeof(JArray)] = true ,
} ;
static ConcurrentDictionary < Type , Func < Type , Dictionary < string , int > , object [ ] , int , RowInfo > > _dicExecuteArrayRowReadClassOrTuple = new ConcurrentDictionary < Type , Func < Type , Dictionary < string , int > , object [ ] , int , RowInfo > > ( ) ;
internal class RowInfo {
public object Value { get ; set ; }
public int DataIndex { get ; set ; }
public RowInfo ( object value , int dataIndex ) {
this . Value = value ;
this . DataIndex = dataIndex ;
}
public static ConstructorInfo Constructor = typeof ( RowInfo ) . GetConstructor ( new [ ] { typeof ( object ) , typeof ( int ) } ) ;
public static PropertyInfo PropertyValue = typeof ( RowInfo ) . GetProperty ( "Value" ) ;
public static PropertyInfo PropertyDataIndex = typeof ( RowInfo ) . GetProperty ( "DataIndex" ) ;
}
internal static RowInfo ExecuteArrayRowReadClassOrTuple ( Type type , Dictionary < string , int > names , object [ ] row , int dataIndex = 0 ) {
var func = _dicExecuteArrayRowReadClassOrTuple . GetOrAdd ( type , s = > {
var returnTarget = Expression . Label ( typeof ( RowInfo ) ) ;
var typeExp = Expression . Parameter ( typeof ( Type ) , "type" ) ;
var namesExp = Expression . Parameter ( typeof ( Dictionary < string , int > ) , "names" ) ;
var rowExp = Expression . Parameter ( typeof ( object [ ] ) , "row" ) ;
var dataIndexExp = Expression . Parameter ( typeof ( int ) , "dataIndex" ) ;
if ( type . IsArray ) return Expression . Lambda < Func < Type , Dictionary < string , int > , object [ ] , int , RowInfo > > (
Expression . New ( RowInfo . Constructor ,
Expression . Call ( MethodGetDataReaderValue , new Expression [ ] { typeExp , Expression . ArrayAccess ( rowExp , dataIndexExp ) } ) ,
Expression . Add ( dataIndexExp , Expression . Constant ( 1 ) )
) , new [ ] { typeExp , namesExp , rowExp , dataIndexExp } ) . Compile ( ) ;
var typeGeneric = type ;
if ( typeGeneric . FullName . StartsWith ( "System.Nullable`1[" ) ) typeGeneric = type . GenericTypeArguments . First ( ) ;
if ( typeGeneric . IsEnum | |
dicExecuteArrayRowReadClassOrTuple . ContainsKey ( typeGeneric ) )
return Expression . Lambda < Func < Type , Dictionary < string , int > , object [ ] , int , RowInfo > > (
Expression . New ( RowInfo . Constructor ,
Expression . Call ( MethodGetDataReaderValue , new Expression [ ] { typeExp , Expression . ArrayAccess ( rowExp , dataIndexExp ) } ) ,
Expression . Add ( dataIndexExp , Expression . Constant ( 1 ) )
) , new [ ] { typeExp , namesExp , rowExp , dataIndexExp } ) . Compile ( ) ;
if ( type . Namespace = = "System" & & ( type . FullName = = "System.String" | | type . IsValueType ) ) { //值类型，或者元组
bool isTuple = type . Name . StartsWith ( "ValueTuple`" ) ;
if ( isTuple ) {
var ret2Exp = Expression . Variable ( type , "ret" ) ;
var read2Exp = Expression . Variable ( typeof ( RowInfo ) , "read" ) ;
var read2ExpValue = Expression . MakeMemberAccess ( read2Exp , RowInfo . PropertyValue ) ;
var read2ExpDataIndex = Expression . MakeMemberAccess ( read2Exp , RowInfo . PropertyDataIndex ) ;
var block2Exp = new List < Expression > ( ) ;
var fields = type . GetFields ( ) ;
foreach ( var field in fields ) {
block2Exp . AddRange ( new Expression [ ] {
//Expression.TryCatch(Expression.Block(
// typeof(void),
Expression . Assign ( read2Exp , Expression . Call ( MethodExecuteArrayRowReadClassOrTuple , new Expression [ ] { Expression . Constant ( field . FieldType ) , namesExp , rowExp , dataIndexExp } ) ) ,
Expression . IfThen ( Expression . GreaterThan ( read2ExpDataIndex , dataIndexExp ) ,
Expression . Assign ( dataIndexExp , read2ExpDataIndex ) ) ,
Expression . Assign ( Expression . MakeMemberAccess ( ret2Exp , field ) , Expression . Convert ( read2ExpValue , field . FieldType ) )
//),
//Expression.Catch(typeof(Exception), Expression.Block(
// Expression.IfThen(Expression.Equal(read2ExpDataIndex, Expression.Constant(0)), Expression.Throw(Expression.Constant(new Exception(field.Name + "," + 0)))),
// Expression.IfThen(Expression.Equal(read2ExpDataIndex, Expression.Constant(1)), Expression.Throw(Expression.Constant(new Exception(field.Name + "," + 1)))),
// Expression.IfThen(Expression.Equal(read2ExpDataIndex, Expression.Constant(2)), Expression.Throw(Expression.Constant(new Exception(field.Name + "," + 2)))),
// Expression.IfThen(Expression.Equal(read2ExpDataIndex, Expression.Constant(3)), Expression.Throw(Expression.Constant(new Exception(field.Name + "," + 3)))),
// Expression.IfThen(Expression.Equal(read2ExpDataIndex, Expression.Constant(4)), Expression.Throw(Expression.Constant(new Exception(field.Name + "," + 4))))
// )
//))
} ) ;
}
block2Exp . AddRange ( new Expression [ ] {
Expression . Return ( returnTarget , Expression . New ( RowInfo . Constructor , Expression . Convert ( ret2Exp , typeof ( object ) ) , dataIndexExp ) ) ,
Expression . Label ( returnTarget , Expression . Default ( typeof ( RowInfo ) ) )
} ) ;
return Expression . Lambda < Func < Type , Dictionary < string , int > , object [ ] , int , RowInfo > > (
Expression . Block ( new [ ] { ret2Exp , read2Exp } , block2Exp ) , new [ ] { typeExp , namesExp , rowExp , dataIndexExp } ) . Compile ( ) ;
}
var rowLenExp = Expression . ArrayLength ( rowExp ) ;
return Expression . Lambda < Func < Type , Dictionary < string , int > , object [ ] , int , RowInfo > > (
Expression . Block (
Expression . IfThen (
Expression . LessThan ( dataIndexExp , rowLenExp ) ,
Expression . Return ( returnTarget , Expression . New ( RowInfo . Constructor ,
Expression . Call ( MethodGetDataReaderValue , new Expression [ ] { typeExp , Expression . ArrayAccess ( rowExp , dataIndexExp ) } ) ,
Expression . Add ( dataIndexExp , Expression . Constant ( 1 ) ) ) )
) ,
Expression . Label ( returnTarget , Expression . Default ( typeof ( RowInfo ) ) )
) , new [ ] { typeExp , namesExp , rowExp , dataIndexExp } ) . Compile ( ) ;
}
if ( type = = typeof ( object ) & & names ! = null ) {
Func < Type , Dictionary < string , int > , object [ ] , int , RowInfo > dynamicFunc = ( type2 , names2 , row2 , dataindex2 ) = > {
dynamic expando = new System . Dynamic . ExpandoObject ( ) ; //动态类型字段 可读可写
var expandodic = ( IDictionary < string , object > ) expando ;
foreach ( var name in names2 )
expandodic . Add ( name . Key , row2 [ name . Value ] ) ;
return new RowInfo ( expando , names2 . Count ) ;
} ;
return dynamicFunc ; // Expression.Lambda<Func<Type, Dictionary<string, int>, object[], int, RowInfo>>(null);
}
//类注入属性
var retExp = Expression . Variable ( type , "ret" ) ;
var readExp = Expression . Variable ( typeof ( RowInfo ) , "read" ) ;
var readExpValue = Expression . MakeMemberAccess ( readExp , RowInfo . PropertyValue ) ;
var readExpDataIndex = Expression . MakeMemberAccess ( readExp , RowInfo . PropertyDataIndex ) ;
var tryidxExp = Expression . Variable ( typeof ( int ) , "tryidx" ) ;
var blockExp = new List < Expression > ( ) ;
blockExp . Add ( Expression . Assign ( retExp , Expression . New ( type . GetConstructor ( new Type [ 0 ] ) ) ) ) ;
var props = type . GetProperties ( ) ;
foreach ( var prop in props ) {
var propGetSetMethod = prop . GetSetMethod ( ) ;
blockExp . AddRange ( new Expression [ ] {
Expression . Assign ( tryidxExp , dataIndexExp ) ,
Expression . IfThen ( Expression . Not ( Expression . And (
Expression . NotEqual ( namesExp , Expression . Constant ( null ) ) ,
Expression . Not ( Expression . Call ( namesExp , namesExp . Type . GetMethod ( "TryGetValue" ) , Expression . Constant ( prop . Name ) , tryidxExp ) ) ) ) ,
Expression . Block (
//Expression.Assign(tryidxExp, Expression.Call(namesExp, namesExp Expression.Constant(prop.Name))),
Expression . Assign ( readExp , Expression . Call ( MethodExecuteArrayRowReadClassOrTuple , new Expression [ ] { Expression . Constant ( prop . PropertyType ) , namesExp , rowExp , tryidxExp } ) ) ,
Expression . IfThen ( Expression . GreaterThan ( readExpDataIndex , dataIndexExp ) ,
Expression . Assign ( dataIndexExp , readExpDataIndex ) ) ,
Expression . IfThen ( Expression . NotEqual ( readExpValue , Expression . Constant ( null ) ) ,
Expression . Call ( retExp , propGetSetMethod , Expression . Convert ( readExpValue , prop . PropertyType ) ) )
)
)
} ) ;
}
blockExp . AddRange ( new Expression [ ] {
Expression . Return ( returnTarget , Expression . New ( RowInfo . Constructor , retExp , dataIndexExp ) ) ,
Expression . Label ( returnTarget , Expression . Default ( typeof ( RowInfo ) ) )
} ) ;
return Expression . Lambda < Func < Type , Dictionary < string , int > , object [ ] , int , RowInfo > > (
Expression . Block ( new [ ] { retExp , readExp , tryidxExp } , blockExp ) , new [ ] { typeExp , namesExp , rowExp , dataIndexExp } ) . Compile ( ) ;
} ) ;
return func ( type , names , row , dataIndex ) ;
}
static MethodInfo MethodExecuteArrayRowReadClassOrTuple = typeof ( Utils ) . GetMethod ( "ExecuteArrayRowReadClassOrTuple" , BindingFlags . Static | BindingFlags . NonPublic ) ;
static MethodInfo MethodGetDataReaderValue = typeof ( Utils ) . GetMethod ( "GetDataReaderValue" , BindingFlags . Static | BindingFlags . NonPublic ) ;
static ConcurrentDictionary < string , Action < object , object > > _dicFillPropertyValue = new ConcurrentDictionary < string , Action < object , object > > ( ) ;
internal static void FillPropertyValue ( object info , string memberAccessPath , object value ) {
var typeObj = info . GetType ( ) ;
var typeValue = value . GetType ( ) ;
var key = "FillPropertyValue_" + typeObj . FullName + "_" + typeValue . FullName ;
var act = _dicFillPropertyValue . GetOrAdd ( $"{key}.{memberAccessPath}" , s = > {
var parmInfo = Expression . Parameter ( typeof ( object ) , "info" ) ;
var parmValue = Expression . Parameter ( typeof ( object ) , "value" ) ;
Expression exp = Expression . Convert ( parmInfo , typeObj ) ;
foreach ( var pro in memberAccessPath . Split ( '.' ) )
exp = Expression . PropertyOrField ( exp , pro ) ? ? throw new Exception ( string . Concat ( exp . Type . FullName , " 没有定义属性 " , pro ) ) ;
var value2 = Expression . Call ( MethodGetDataReaderValue , Expression . Constant ( exp . Type ) , parmValue ) ;
var value3 = Expression . Convert ( parmValue , typeValue ) ;
exp = Expression . Assign ( exp , value3 ) ;
return Expression . Lambda < Action < object , object > > ( exp , parmInfo , parmValue ) . Compile ( ) ;
} ) ;
act ( info , value ) ;
}
static ConcurrentDictionary < Type , Func < object , object > > _dicGetDataReaderValue = new ConcurrentDictionary < Type , Func < object , object > > ( ) ;
internal static object GetDataReaderValue ( Type type , object value ) {
if ( value = = null | | value = = DBNull . Value ) return null ;
var func = _dicGetDataReaderValue . GetOrAdd ( type , k = > {
var returnTarget = Expression . Label ( typeof ( object ) ) ;
var parmExp = Expression . Parameter ( typeof ( object ) , "value" ) ;
if ( type . FullName = = "System.Byte[]" ) return Expression . Lambda < Func < object , object > > ( parmExp , parmExp ) . Compile ( ) ;
if ( type . IsArray ) {
var elementType = type . GetElementType ( ) ;
var valueArr = value as Array ;
if ( elementType = = valueArr . GetType ( ) . GetElementType ( ) ) return Expression . Lambda < Func < object , object > > ( parmExp , parmExp ) . Compile ( ) ;
var arr = Expression . Variable ( type , "arr" ) ;
var arrlen = Expression . Variable ( typeof ( int ) , "arrlen" ) ;
var x = Expression . Variable ( typeof ( int ) , "x" ) ;
var label = Expression . Label ( typeof ( int ) ) ;
var ret = Expression . NewArrayBounds ( elementType , arrlen ) ;
return Expression . Lambda < Func < object , object > > (
Expression . Block (
new [ ] { arr , arrlen , x } ,
Expression . Assign ( arr , Expression . Convert ( parmExp , type ) ) ,
Expression . Assign ( arrlen , Expression . ArrayLength ( arr ) ) ,
Expression . Assign ( x , Expression . Constant ( 0 ) ) ,
ret ,
Expression . Loop (
Expression . IfThenElse (
Expression . LessThan ( x , arrlen ) ,
Expression . Block (
Expression . Assign (
Expression . ArrayAccess ( ret , x ) ,
Expression . Call (
MethodGetDataReaderValue ,
Expression . Constant ( elementType , typeof ( Type ) ) ,
Expression . ArrayAccess ( arr , x )
)
) ,
Expression . PostIncrementAssign ( x )
) ,
Expression . Break ( label , x )
) ,
label
)
) , parmExp ) . Compile ( ) ;
}
if ( type . FullName . StartsWith ( "System.Nullable`1[" ) ) type = type . GenericTypeArguments . First ( ) ;
if ( type . IsEnum ) return Expression . Lambda < Func < object , object > > (
Expression . Call (
typeof ( Enum ) . GetMethod ( "Parse" , new [ ] { typeof ( Type ) , typeof ( string ) , typeof ( bool ) } ) ,
Expression . Constant ( type , typeof ( Type ) ) ,
Expression . Convert ( parmExp , typeof ( string ) ) ,
Expression . Constant ( true , typeof ( bool ) )
) , parmExp ) . Compile ( ) ;
switch ( type . FullName ) {
case "System.Guid" :
if ( value . GetType ( ) ! = type ) return Expression . Lambda < Func < object , object > > (
Expression . Block (
Expression . TryCatch (
Expression . Return ( returnTarget , Expression . Call ( typeof ( Guid ) . GetMethod ( "Parse" ) , Expression . Convert ( parmExp , typeof ( string ) ) ) ) ,
Expression . Catch ( typeof ( Exception ) ,
Expression . Return ( returnTarget , Expression . Constant ( Guid . Empty ) ) )
) ,
Expression . Label ( returnTarget , Expression . Default ( type ) )
) , parmExp ) . Compile ( ) ;
return Expression . Lambda < Func < object , object > > ( parmExp , parmExp ) . Compile ( ) ;
case "MygisPoint" : return Expression . Lambda < Func < object , object > > (
Expression . TypeAs (
Expression . Call ( typeof ( MygisPoint ) . GetMethod ( "Parse" ) , Expression . Convert ( parmExp , typeof ( string ) ) ) ,
typeof ( MygisPoint )
) , parmExp ) . Compile ( ) ;
case "MygisLineString" : return Expression . Lambda < Func < object , object > > (
Expression . TypeAs (
Expression . Call ( typeof ( MygisLineString ) . GetMethod ( "Parse" ) , Expression . Convert ( parmExp , typeof ( string ) ) ) ,
typeof ( MygisLineString )
) , parmExp ) . Compile ( ) ;
case "MygisPolygon" : return Expression . Lambda < Func < object , object > > (
Expression . TypeAs (
Expression . Call ( typeof ( MygisPolygon ) . GetMethod ( "Parse" ) , Expression . Convert ( parmExp , typeof ( string ) ) ) ,
typeof ( MygisPolygon )
) , parmExp ) . Compile ( ) ;
case "MygisMultiPoint" : return Expression . Lambda < Func < object , object > > (
Expression . TypeAs (
Expression . Call ( typeof ( MygisMultiPoint ) . GetMethod ( "Parse" ) , Expression . Convert ( parmExp , typeof ( string ) ) ) ,
typeof ( MygisMultiPoint )
) , parmExp ) . Compile ( ) ;
case "MygisMultiLineString" : return Expression . Lambda < Func < object , object > > (
Expression . TypeAs (
Expression . Call ( typeof ( MygisMultiLineString ) . GetMethod ( "Parse" ) , Expression . Convert ( parmExp , typeof ( string ) ) ) ,
typeof ( MygisMultiLineString )
) , parmExp ) . Compile ( ) ;
case "MygisMultiPolygon" : return Expression . Lambda < Func < object , object > > (
Expression . TypeAs (
Expression . Call ( typeof ( MygisMultiPolygon ) . GetMethod ( "Parse" ) , Expression . Convert ( parmExp , typeof ( string ) ) ) ,
typeof ( MygisMultiPolygon )
) , parmExp ) . Compile ( ) ;
case "Newtonsoft.Json.Linq.JToken" : return Expression . Lambda < Func < object , object > > (
Expression . TypeAs (
Expression . Call ( typeof ( JToken ) . GetMethod ( "Parse" , new [ ] { typeof ( string ) } ) , Expression . Convert ( parmExp , typeof ( string ) ) ) ,
typeof ( JToken )
) , parmExp ) . Compile ( ) ;
case "Newtonsoft.Json.Linq.JObject" : return Expression . Lambda < Func < object , object > > (
Expression . TypeAs (
Expression . Call ( typeof ( JObject ) . GetMethod ( "Parse" , new [ ] { typeof ( string ) } ) , Expression . Convert ( parmExp , typeof ( string ) ) ) ,
typeof ( JObject )
) , parmExp ) . Compile ( ) ;
case "Newtonsoft.Json.Linq.JArray" : return Expression . Lambda < Func < object , object > > (
Expression . TypeAs (
Expression . Call ( typeof ( JArray ) . GetMethod ( "Parse" , new [ ] { typeof ( string ) } ) , Expression . Convert ( parmExp , typeof ( string ) ) ) ,
typeof ( JArray )
) , parmExp ) . Compile ( ) ;
case "Npgsql.LegacyPostgis.PostgisGeometry" : return Expression . Lambda < Func < object , object > > ( parmExp , parmExp ) . Compile ( ) ;
}
if ( type ! = value . GetType ( ) ) {
if ( type . FullName = = "System.TimeSpan" ) return Expression . Lambda < Func < object , object > > (
Expression . Call (
typeof ( TimeSpan ) . GetMethod ( "FromSeconds" ) ,
Expression . Call ( typeof ( double ) . GetMethod ( "Parse" , new [ ] { typeof ( string ) } ) , Expression . Convert ( parmExp , typeof ( string ) ) )
) , parmExp ) . Compile ( ) ;
return Expression . Lambda < Func < object , object > > (
Expression . Call ( typeof ( Convert ) . GetMethod ( "ChangeType" , new [ ] { typeof ( object ) , typeof ( Type ) } ) , parmExp , Expression . Constant ( type , typeof ( Type ) ) )
, parmExp ) . Compile ( ) ;
}
return Expression . Lambda < Func < object , object > > ( parmExp , parmExp ) . Compile ( ) ;
} ) ;
return func ( value ) ;
}
internal static string GetCsName ( string name ) {
name = Regex . Replace ( name . TrimStart ( '@' ) , @"[^\w]" , "_" ) ;
return char . IsLetter ( name , 0 ) ? name : string . Concat ( "_" , name ) ;
}
}
}
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