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d701fd03
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Dapper
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体验新版 GitCode,发现更多精彩内容 >>
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d701fd03
编写于
5月 10, 2011
作者:
S
simon.cropp
浏览文件
操作
浏览文件
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电子邮件补丁
差异文件
use typehandle instead of type
remove redundant use of identity
上级
6a382e1f
变更
1
显示空白变更内容
内联
并排
Showing
1 changed file
with
28 addition
and
19 deletion
+28
-19
Dapper/SqlMapper.cs
Dapper/SqlMapper.cs
+28
-19
未找到文件。
Dapper/SqlMapper.cs
浏览文件 @
d701fd03
...
...
@@ -195,13 +195,17 @@ private static IEnumerable<T> QueryInternal<T>(this IDbConnection cnn, string sq
{
using
(
var
reader
=
cmd
.
ExecuteReader
())
{
Func
<
IDataReader
,
T
>
deserializer
;
if
(
info
.
Deserializer
==
null
)
{
info
.
Deserializer
=
GetDeserializer
<
T
>(
identity
,
reader
);
info
.
Deserializer
=
deserializer
=
GetDeserializer
<
T
>(
reader
);
queryCache
[
identity
]
=
info
;
}
else
{
deserializer
=
(
Func
<
IDataReader
,
T
>)
info
.
Deserializer
;
}
var
deserializer
=
(
Func
<
IDataReader
,
T
>)
info
.
Deserializer
;
while
(
reader
.
Read
())
{
...
...
@@ -283,30 +287,30 @@ class DontMap {}
var
otherDeserializer
=
new
List
<
object
>();
int
split
=
nextSplit
();
info
.
Deserializer
=
GetDeserializer
<
T
>(
identity
,
reader
,
0
,
split
);
info
.
Deserializer
=
GetDeserializer
<
T
>(
reader
,
0
,
split
);
if
(
typeof
(
U
)
!=
typeof
(
DontMap
))
{
var
next
=
nextSplit
();
otherDeserializer
.
Add
(
GetDeserializer
<
U
>(
identity
,
reader
,
split
,
next
-
split
,
returnNullIfFirstMissing
:
true
));
otherDeserializer
.
Add
(
GetDeserializer
<
U
>(
reader
,
split
,
next
-
split
,
returnNullIfFirstMissing
:
true
));
split
=
next
;
}
if
(
typeof
(
V
)
!=
typeof
(
DontMap
))
{
var
next
=
nextSplit
();
otherDeserializer
.
Add
(
GetDeserializer
<
V
>(
identity
,
reader
,
split
,
next
-
split
,
returnNullIfFirstMissing
:
true
));
otherDeserializer
.
Add
(
GetDeserializer
<
V
>(
reader
,
split
,
next
-
split
,
returnNullIfFirstMissing
:
true
));
split
=
next
;
}
if
(
typeof
(
Z
)
!=
typeof
(
DontMap
))
{
var
next
=
nextSplit
();
otherDeserializer
.
Add
(
GetDeserializer
<
Z
>(
identity
,
reader
,
split
,
next
-
split
,
returnNullIfFirstMissing
:
true
));
otherDeserializer
.
Add
(
GetDeserializer
<
Z
>(
reader
,
split
,
next
-
split
,
returnNullIfFirstMissing
:
true
));
split
=
next
;
}
if
(
typeof
(
X
)
!=
typeof
(
DontMap
))
{
var
next
=
nextSplit
();
otherDeserializer
.
Add
(
GetDeserializer
<
X
>(
identity
,
reader
,
split
,
next
-
split
,
returnNullIfFirstMissing
:
true
));
otherDeserializer
.
Add
(
GetDeserializer
<
X
>(
reader
,
split
,
next
-
split
,
returnNullIfFirstMissing
:
true
));
}
info
.
OtherDeserializers
=
otherDeserializer
.
ToArray
();
...
...
@@ -382,27 +386,33 @@ class DontMap {}
private
static
CacheInfo
GetCacheInfo
(
object
param
,
Identity
identity
)
{
CacheInfo
info
;
if
(
!
queryCache
.
TryGetValue
(
identity
,
out
info
))
if
(
queryCache
.
TryGetValue
(
identity
,
out
info
))
{
return
info
;
}
info
=
new
CacheInfo
();
if
(
param
!=
null
)
{
info
.
ParamReader
=
CreateParamInfoGenerator
(
param
.
GetType
());
}
}
return
info
;
}
private
static
Func
<
IDataReader
,
T
>
GetDeserializer
<
T
>(
Identity
identity
,
IDataReader
reader
,
int
startBound
=
0
,
int
length
=
-
1
,
bool
returnNullIfFirstMissing
=
false
)
static
RuntimeTypeHandle
objectTypeHandle
=
typeof
(
object
).
TypeHandle
;
static
RuntimeTypeHandle
expandoTypeHandle
=
typeof
(
ExpandoObject
).
TypeHandle
;
static
RuntimeTypeHandle
stringTypeHandle
=
typeof
(
string
).
TypeHandle
;
private
static
Func
<
IDataReader
,
T
>
GetDeserializer
<
T
>(
IDataReader
reader
,
int
startBound
=
0
,
int
length
=
-
1
,
bool
returnNullIfFirstMissing
=
false
)
{
// dynamic is passed in as Object ... by c# design
if
(
typeof
(
T
)
==
typeof
(
object
)
||
typeof
(
T
)
==
typeof
(
ExpandoObject
))
var
tHandle
=
typeof
(
T
).
TypeHandle
;
if
(
tHandle
.
Equals
(
objectTypeHandle
)
||
tHandle
.
Equals
(
expandoTypeHandle
))
{
return
GetDynamicDeserializer
<
T
>(
reader
,
startBound
,
length
,
returnNullIfFirstMissing
);
}
if
(
typeof
(
T
).
IsClass
&&
typeof
(
T
)
!=
typeof
(
string
))
if
(
typeof
(
T
).
IsClass
&&
!
tHandle
.
Equals
(
stringTypeHandle
))
{
return
GetClassDeserializer
<
T
>(
reader
,
startBound
,
length
,
returnNullIfFirstMissing
:
returnNullIfFirstMissing
);
return
GetClassDeserializer
<
T
>(
reader
,
startBound
,
length
,
returnNullIfFirstMissing
);
}
return
GetStructDeserializer
<
T
>();
...
...
@@ -784,8 +794,7 @@ public IEnumerable<T> Read<T>()
{
if
(
reader
==
null
)
throw
new
ObjectDisposedException
(
GetType
().
Name
);
if
(
consumed
)
throw
new
InvalidOperationException
(
"Each grid can only be iterated once"
);
var
identity
=
new
Identity
(
sql
,
connection
,
typeof
(
T
),
null
);
var
deserializer
=
GetDeserializer
<
T
>(
identity
,
reader
);
var
deserializer
=
GetDeserializer
<
T
>(
reader
);
consumed
=
true
;
return
ReadDeferred
(
gridIndex
,
deserializer
);
}
...
...
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