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体验新版 GitCode,发现更多精彩内容 >>
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c5afddc6
编写于
7月 30, 2017
作者:
Y
Yi Wang
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Rewrite Scope
上级
0973c2c9
变更
4
隐藏空白更改
内联
并排
Showing
4 changed file
with
126 addition
and
100 deletion
+126
-100
paddle/framework/scope.cc
paddle/framework/scope.cc
+58
-0
paddle/framework/scope.h
paddle/framework/scope.h
+28
-65
paddle/framework/scope_test.cc
paddle/framework/scope_test.cc
+28
-35
paddle/framework/variable.h
paddle/framework/variable.h
+12
-0
未找到文件。
paddle/framework/scope.cc
0 → 100644
浏览文件 @
c5afddc6
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. */
#include "paddle/framework/scope.h"
namespace
paddle
{
namespace
framework
{
Scope
::~
Scope
()
{
for
(
Variable
*
v
:
vars_
)
delete
v
;
for
(
Scope
*
s
:
kids_
)
delete
s
;
}
Scope
&
Scope
::
NewScope
()
{
kids_
.
push_back
(
new
Scope
(
this
));
return
*
kids_
.
back
();
}
Variable
*
Scope
::
NewVar
(
const
std
::
string
&
name
)
{
atuo
iter
=
vars_
.
find
(
name
);
if
(
iter
!=
vars_
.
end
())
{
return
iter
.
second
->
get
();
}
Variable
*
v
=
new
Variable
();
v
->
name_
=
name
;
var_
[
name
]
=
v
;
return
v
;
}
Variable
*
Scope
::
NewVar
()
{
return
NewVar
(
string
.
Sprintf
(
"%p.%d"
,
this
,
vars_
.
size
()));
}
Variable
*
Scope
::
FindVar
(
const
std
::
string
&
name
)
const
{
auto
it
=
vars_
.
find
(
name
);
if
(
it
!=
vars_
.
end
())
return
it
->
second
.
get
();
return
(
parent_
==
nullptr
)
?
nullptr
:
parent_
->
FindVar
(
name
);
}
Scope
*
Scope
::
FindScope
(
const
Variable
*
var
)
const
{
if
(
FindVar
(
var
->
name_
)
!=
nullptr
)
return
this
;
return
(
parent_
==
nullptr
)
?
nullptr
:
parent_
->
FindScope
(
var
);
}
}
// namespace framework
}
// namespace paddle
paddle/framework/scope.h
浏览文件 @
c5afddc6
...
...
@@ -14,9 +14,9 @@ limitations under the License. */
#pragma once
#include <list>
#include <map>
#include <string>
#include <unordered_map>
#include <vector>
#include "paddle/framework/variable.h"
...
...
@@ -35,73 +35,36 @@ class Scope;
*/
class
Scope
{
public:
/**
* @brief Initialize s Scope without parent.
*/
Scope
()
{}
~
Scope
();
/**
* @brief Initialize a Scope with parent.
*/
explicit
Scope
(
const
std
::
shared_ptr
<
Scope
>&
parent
)
:
parent_
(
parent
)
{}
/**
* @brief Create Variable
*
* Create Variable in this Scope. Return the exist one if Variable already
* been created.
*/
Variable
*
CreateVariable
(
const
std
::
string
&
name
)
{
auto
var
=
GetVariable
(
name
);
if
(
var
)
{
return
var
;
}
else
{
auto
ptr
=
new
Variable
();
name_to_var_
[
name
]
=
std
::
unique_ptr
<
Variable
>
(
ptr
);
var_to_name_
[
ptr
]
=
name
;
return
GetVariable
(
name
);
}
}
/**
* @brief Get Variable.
*
* Get Variable from this Scope, this function will recursive find Variable
* from it's parent scope. Return nullptr if not found.
*/
Variable
*
GetVariable
(
const
std
::
string
&
name
)
const
{
auto
it
=
name_to_var_
.
find
(
name
);
if
(
it
!=
name_to_var_
.
end
())
{
return
it
->
second
.
get
();
}
else
if
(
parent_
!=
nullptr
)
{
return
parent_
->
GetVariable
(
name
);
}
else
{
return
nullptr
;
}
}
/**
* @brief If this scope has a Var named name.
*
* Find if there is a Variable in this scope and it's parent scope
*/
bool
HasVariable
(
const
std
::
string
&
name
)
const
{
return
(
name_to_var_
.
find
(
name
)
!=
name_to_var_
.
end
()
||
(
parent_
&&
parent_
->
HasVariable
(
name
)));
}
std
::
string
GetVariableName
(
Variable
*
const
var
)
const
{
try
{
return
var_to_name_
.
at
(
var
);
}
catch
(...)
{
return
""
;
}
}
// Create a sub-scope. Returns a reference other than a pointer so
// to prevent from manual deletion.
Scope
&
NewScope
();
// Create a variable with given name if it doesn't exist.
Variable
*
NewVar
(
const
std
::
string
&
name
);
// Create a variable with a scope-unique name.
Variable
*
NewVar
();
// Find a variable in the scope or any of its ancestors. Returns
// nullptr if cannot find.
Variable
*
FindVar
(
const
std
::
string
&
name
)
const
;
// Find the scope or an ancestor scope that contains the given variable.
Scope
*
FindScope
(
const
Variable
*
var
)
const
;
// Returns the name of a variable in this scope.
std
::
string
VarName
(
const
Variable
*
var
)
const
{
return
var
->
name_
;
}
private:
std
::
unordered_map
<
Variable
*
,
std
::
string
>
var_to_name_
;
std
::
unordered_map
<
std
::
string
,
std
::
unique_ptr
<
Variable
>>
name_to_var_
;
std
::
shared_ptr
<
Scope
>
parent_
{
nullptr
};
// Call Scope::NewScope for a sub-scope.
explicit
Scope
(
Scope
*
parent
)
:
parent_
(
parent
)
{}
std
::
map
<
std
::
string
,
Variable
*>
vars_
;
std
::
list
<
Scope
*>
kids_
;
Scope
*
parent_
{
nullptr
};
};
}
// namespace framework
...
...
paddle/framework/scope_test.cc
浏览文件 @
c5afddc6
...
...
@@ -15,49 +15,42 @@ limitations under the License. */
#include "paddle/framework/scope.h"
#include "gtest/gtest.h"
TEST
(
Scope
,
Create
)
{
using
paddle
::
framework
::
Scope
;
using
paddle
::
framework
::
Variable
;
using
paddle
::
framework
::
Scope
;
using
paddle
::
framework
::
Variable
;
auto
scope
=
std
::
make_shared
<
Scope
>
();
TEST
(
Scope
,
VarsShadowing
)
{
Scope
s
;
Scope
&
ss1
=
s
.
NewScope
();
Scope
&
ss2
=
s
.
NewScope
();
Variable
*
v
ar0
=
scope
->
CreateVariable
(
"
"
);
EXPECT_NE
(
var0
,
nullptr
);
Variable
*
v
0
=
s
.
NewVar
(
"a
"
);
Variable
*
v1
=
ss1
.
NewVar
(
"a"
);
/// GetVariable will return nullptr if not exist.
Variable
*
var1
=
scope
->
GetVariable
(
"a"
);
EXPECT_EQ
(
var1
,
nullptr
);
EXPECT_NE
(
v0
,
v1
);
/// CreateVariable will return one.
Variable
*
var2
=
scope
->
CreateVariable
(
"a"
);
EXPECT_NE
(
var2
,
nullptr
);
/// Get the created variable.
Variable
*
var3
=
scope
->
GetVariable
(
"a"
);
EXPECT_EQ
(
var2
,
var3
);
EXPECT_EQ
(
v0
,
s
.
FindVar
(
"a"
));
EXPECT_EQ
(
v1
,
ss1
.
FindVar
(
"a"
));
EXPECT_EQ
(
v0
,
ss2
.
FindVar
(
"a"
));
}
/// CreateVariable will just return the variable if it's
/// already exist.
Variable
*
var4
=
scope
->
CreateVariable
(
"a"
);
EXPECT_EQ
(
var4
,
var2
);
TEST
(
Scope
,
FindVar
)
{
Scope
s
;
Scope
&
ss
=
s
.
NewScope
();
EXPECT_EQ
(
"a"
,
scope
->
GetVariableName
(
var4
));
Scope
scope2
;
auto
var
=
scope2
.
CreateVariable
(
"tmp"
);
EXPECT_EQ
(
""
,
scope
->
GetVariableName
(
var
));
}
EXPECT_EQ
(
nullptr
,
s
.
FindVar
(
"a"
));
EXPECT_EQ
(
nullptr
,
ss
.
FindVar
(
"a"
));
TEST
(
Scope
,
Parent
)
{
using
paddle
::
framework
::
Scope
;
using
paddle
::
framework
::
Variable
;
ss
.
NewVar
(
"a"
);
auto
parent_scope
=
std
::
make_shared
<
Scope
>
();
auto
scope
=
std
::
make_shared
<
Scope
>
(
parent_scope
);
EXPECT_EQ
(
nullptr
,
s
.
FindVar
(
"a"
));
EXPECT_NE
(
nullptr
,
ss
.
FindVar
(
"a"
));
}
Variable
*
var0
=
parent_scope
->
CreateVariable
(
"a"
);
EXPECT_NE
(
var0
,
nullptr
);
TEST
(
Scope
,
FindScope
)
{
Scope
s
;
Scope
&
ss
=
s
.
NewScope
();
s
.
NewVar
(
"a"
);
/// GetVariable will get Variable from parent scope if exist.
Variable
*
var1
=
scope
->
GetVariable
(
"a"
);
EXPECT_EQ
(
var0
,
var1
);
EXPECT_EQ
(
&
s
,
s
.
FindVar
(
"a"
));
EXPECT_EQ
(
&
s
,
ss
.
FindVar
(
"a"
));
}
paddle/framework/variable.h
浏览文件 @
c5afddc6
...
...
@@ -17,6 +17,7 @@
#include <typeinfo>
#include "paddle/platform/assert.h"
#include "paddle/string/piece.h"
namespace
paddle
{
namespace
framework
{
...
...
@@ -65,6 +66,17 @@ class Variable {
std
::
unique_ptr
<
Placeholder
>
holder_
;
// pointers to a PlaceholderImpl object indeed.
// name_ is only meaningful with a Scope and accessible by it.
//
// NOTE: Please don't expose name_ by adding methods like
// Variable::Name or Scope::VarName! A variable could have a human
// readable name or an auto-generated scope-unique name. In the
// former case, the caller knows the name and doesn't need to access
// the name; in the latter case, the variable should be identified
// by its address but not the unreadable name.
friend
class
Scope
;
string
::
Piece
name_
;
};
}
// namespace framework
...
...
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