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//
Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2011
//
Google Inc. All rights reserved.
//
//
Redistribution and use in source and binary forms, with or without
//
modification, are permitted provided that the following conditions are
//
met:
//
//
* Redistributions of source code must retain the above copyright
//
notice, this list of conditions and the following disclaimer.
//
* Redistributions in binary form must reproduce the above
//
copyright notice, this list of conditions and the following disclaimer
//
in the documentation and/or other materials provided with the
//
distribution.
//
* Neither the name of Google Inc. nor the name Chromium Embedded
//
Framework nor the names of its contributors may be used to endorse
//
or promote products derived from this software without specific prior
//
written permission.
//
//
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
//
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
//
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
//
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
//
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
//
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
//
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
//
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
//
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
ifndef
CEF_INCLUDE_BASE_CEF_BIND_H_
#
define
CEF_INCLUDE_BASE_CEF_BIND_H_
#
pragma
once
#
if
defined(BASE_BIND_H_)
//
Do nothing if the Chromium header has already been included.
//
This can happen in cases where Chromium code is used directly by the
//
client application. When using Chromium code directly always include
//
the Chromium header first to avoid type conflicts.
#
elif
defined(USING_CHROMIUM_INCLUDES)
//
When building CEF include the Chromium header directly.
#
include
"
base/bind.h
"
#
else
//
!USING_CHROMIUM_INCLUDES
//
The following is substantially similar to the Chromium implementation.
//
If the Chromium implementation diverges the below implementation should be
//
updated to match.
#
include
"
include/base/internal/cef_bind_internal.h
"
#
include
"
include/base/internal/cef_callback_internal.h
"
//
-----------------------------------------------------------------------------
//
Usage documentation
//
-----------------------------------------------------------------------------
//
//
See base/cef_callback.h for documentation.
//
//
//
-----------------------------------------------------------------------------
//
Implementation notes
//
-----------------------------------------------------------------------------
//
//
If you're reading the implementation, before proceeding further, you should
//
read the top comment of base/bind_internal.h for a definition of common
//
terms and concepts.
//
//
RETURN TYPES
//
//
Though Bind()'s result is meant to be stored in a Callback<> type, it
//
cannot actually return the exact type without requiring a large amount
//
of extra template specializations. The problem is that in order to
//
discern the correct specialization of Callback<>, Bind would need to
//
unwrap the function signature to determine the signature's arity, and
//
whether or not it is a method.
//
//
Each unique combination of (arity, function_type, num_prebound) where
//
function_type is one of {function, method, const_method} would require
//
one specialization. We eventually have to do a similar number of
//
specializations anyways in the implementation (see the Invoker<>,
//
classes). However, it is avoidable in Bind if we return the result
//
via an indirection like we do below.
//
//
TODO(ajwong): We might be able to avoid this now, but need to test.
//
//
It is possible to move most of the COMPILE_ASSERT asserts into BindState<>,
//
but it feels a little nicer to have the asserts here so people do not
//
need to crack open bind_internal.h. On the other hand, it makes Bind()
//
harder to read.
namespace
base
{
template
<
typename
Functor>
base::Callback<
typename
cef_internal::BindState<
typename
cef_internal::FunctorTraits<Functor>::RunnableType,
typename
cef_internal::FunctorTraits<Functor>::RunType,
void
()>
::UnboundRunType>
Bind
(Functor functor) {
//
Typedefs for how to store and run the functor.
typedef
typename
cef_internal::FunctorTraits<Functor>::RunnableType RunnableType;
typedef
typename
cef_internal::FunctorTraits<Functor>::RunType RunType;
typedef
cef_internal::BindState<RunnableType, RunType,
void
()> BindState;
return
Callback<
typename
BindState::UnboundRunType>(
new
BindState
(
cef_internal::MakeRunnable
(functor)));
}
template
<
typename
Functor,
typename
P1
>
base::Callback<
typename
cef_internal::BindState<
typename
cef_internal::FunctorTraits<Functor>::RunnableType,
typename
cef_internal::FunctorTraits<Functor>::RunType,
void
(
typename
cef_internal::CallbackParamTraits<
P1
>::StorageType)>
::UnboundRunType>
Bind
(Functor functor,
const
P1
& p1) {
//
Typedefs for how to store and run the functor.
typedef
typename
cef_internal::FunctorTraits<Functor>::RunnableType RunnableType;
typedef
typename
cef_internal::FunctorTraits<Functor>::RunType RunType;
//
Use RunnableType::RunType instead of RunType above because our
//
checks should below for bound references need to know what the actual
//
functor is going to interpret the argument as.
typedef
cef_internal::FunctionTraits<
typename
RunnableType::RunType>
BoundFunctorTraits;
//
Do not allow binding a non-const reference parameter. Non-const reference
//
parameters are disallowed by the Google style guide. Also, binding a
//
non-const reference parameter can make for subtle bugs because the
//
invoked function will receive a reference to the stored copy of the
//
argument and not the original.
COMPILE_ASSERT
(
!(is_non_const_reference<
typename
BoundFunctorTraits::A1Type>::value ),
do_not_bind_functions_with_nonconst_ref);
//
For methods, we need to be careful for parameter 1. We do not require
//
a scoped_refptr because BindState<> itself takes care of AddRef() for
//
methods. We also disallow binding of an array as the method's target
//
object.
COMPILE_ASSERT
(
cef_internal::HasIsMethodTag<RunnableType>::value ||
!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P1
>::value,
p1_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::HasIsMethodTag<RunnableType>::value ||
!is_array<
P1
>::value,
first_bound_argument_to_method_cannot_be_array);
typedef
cef_internal::BindState<RunnableType, RunType,
void
(
typename
cef_internal::CallbackParamTraits<
P1
>::StorageType)> BindState;
return
Callback<
typename
BindState::UnboundRunType>(
new
BindState
(
cef_internal::MakeRunnable
(functor), p1));
}
template
<
typename
Functor,
typename
P1
,
typename
P2
>
base::Callback<
typename
cef_internal::BindState<
typename
cef_internal::FunctorTraits<Functor>::RunnableType,
typename
cef_internal::FunctorTraits<Functor>::RunType,
void
(
typename
cef_internal::CallbackParamTraits<
P1
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P2
>::StorageType)>
::UnboundRunType>
Bind
(Functor functor,
const
P1
& p1,
const
P2
& p2) {
//
Typedefs for how to store and run the functor.
typedef
typename
cef_internal::FunctorTraits<Functor>::RunnableType RunnableType;
typedef
typename
cef_internal::FunctorTraits<Functor>::RunType RunType;
//
Use RunnableType::RunType instead of RunType above because our
//
checks should below for bound references need to know what the actual
//
functor is going to interpret the argument as.
typedef
cef_internal::FunctionTraits<
typename
RunnableType::RunType>
BoundFunctorTraits;
//
Do not allow binding a non-const reference parameter. Non-const reference
//
parameters are disallowed by the Google style guide. Also, binding a
//
non-const reference parameter can make for subtle bugs because the
//
invoked function will receive a reference to the stored copy of the
//
argument and not the original.
COMPILE_ASSERT
(
!(is_non_const_reference<
typename
BoundFunctorTraits::A1Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A2Type>::value ),
do_not_bind_functions_with_nonconst_ref);
//
For methods, we need to be careful for parameter 1. We do not require
//
a scoped_refptr because BindState<> itself takes care of AddRef() for
//
methods. We also disallow binding of an array as the method's target
//
object.
COMPILE_ASSERT
(
cef_internal::HasIsMethodTag<RunnableType>::value ||
!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P1
>::value,
p1_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::HasIsMethodTag<RunnableType>::value ||
!is_array<
P1
>::value,
first_bound_argument_to_method_cannot_be_array);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P2
>::value,
p2_is_refcounted_type_and_needs_scoped_refptr);
typedef
cef_internal::BindState<RunnableType, RunType,
void
(
typename
cef_internal::CallbackParamTraits<
P1
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P2
>::StorageType)> BindState;
return
Callback<
typename
BindState::UnboundRunType>(
new
BindState
(
cef_internal::MakeRunnable
(functor), p1, p2));
}
template
<
typename
Functor,
typename
P1
,
typename
P2
,
typename
P3
>
base::Callback<
typename
cef_internal::BindState<
typename
cef_internal::FunctorTraits<Functor>::RunnableType,
typename
cef_internal::FunctorTraits<Functor>::RunType,
void
(
typename
cef_internal::CallbackParamTraits<
P1
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P2
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P3
>::StorageType)>
::UnboundRunType>
Bind
(Functor functor,
const
P1
& p1,
const
P2
& p2,
const
P3
& p3) {
//
Typedefs for how to store and run the functor.
typedef
typename
cef_internal::FunctorTraits<Functor>::RunnableType RunnableType;
typedef
typename
cef_internal::FunctorTraits<Functor>::RunType RunType;
//
Use RunnableType::RunType instead of RunType above because our
//
checks should below for bound references need to know what the actual
//
functor is going to interpret the argument as.
typedef
cef_internal::FunctionTraits<
typename
RunnableType::RunType>
BoundFunctorTraits;
//
Do not allow binding a non-const reference parameter. Non-const reference
//
parameters are disallowed by the Google style guide. Also, binding a
//
non-const reference parameter can make for subtle bugs because the
//
invoked function will receive a reference to the stored copy of the
//
argument and not the original.
COMPILE_ASSERT
(
!(is_non_const_reference<
typename
BoundFunctorTraits::A1Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A2Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A3Type>::value ),
do_not_bind_functions_with_nonconst_ref);
//
For methods, we need to be careful for parameter 1. We do not require
//
a scoped_refptr because BindState<> itself takes care of AddRef() for
//
methods. We also disallow binding of an array as the method's target
//
object.
COMPILE_ASSERT
(
cef_internal::HasIsMethodTag<RunnableType>::value ||
!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P1
>::value,
p1_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::HasIsMethodTag<RunnableType>::value ||
!is_array<
P1
>::value,
first_bound_argument_to_method_cannot_be_array);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P2
>::value,
p2_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P3
>::value,
p3_is_refcounted_type_and_needs_scoped_refptr);
typedef
cef_internal::BindState<RunnableType, RunType,
void
(
typename
cef_internal::CallbackParamTraits<
P1
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P2
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P3
>::StorageType)> BindState;
return
Callback<
typename
BindState::UnboundRunType>(
new
BindState
(
cef_internal::MakeRunnable
(functor), p1, p2, p3));
}
template
<
typename
Functor,
typename
P1
,
typename
P2
,
typename
P3
,
typename
P4
>
base::Callback<
typename
cef_internal::BindState<
typename
cef_internal::FunctorTraits<Functor>::RunnableType,
typename
cef_internal::FunctorTraits<Functor>::RunType,
void
(
typename
cef_internal::CallbackParamTraits<
P1
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P2
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P3
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P4
>::StorageType)>
::UnboundRunType>
Bind
(Functor functor,
const
P1
& p1,
const
P2
& p2,
const
P3
& p3,
const
P4
& p4) {
//
Typedefs for how to store and run the functor.
typedef
typename
cef_internal::FunctorTraits<Functor>::RunnableType RunnableType;
typedef
typename
cef_internal::FunctorTraits<Functor>::RunType RunType;
//
Use RunnableType::RunType instead of RunType above because our
//
checks should below for bound references need to know what the actual
//
functor is going to interpret the argument as.
typedef
cef_internal::FunctionTraits<
typename
RunnableType::RunType>
BoundFunctorTraits;
//
Do not allow binding a non-const reference parameter. Non-const reference
//
parameters are disallowed by the Google style guide. Also, binding a
//
non-const reference parameter can make for subtle bugs because the
//
invoked function will receive a reference to the stored copy of the
//
argument and not the original.
COMPILE_ASSERT
(
!(is_non_const_reference<
typename
BoundFunctorTraits::A1Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A2Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A3Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A4Type>::value ),
do_not_bind_functions_with_nonconst_ref);
//
For methods, we need to be careful for parameter 1. We do not require
//
a scoped_refptr because BindState<> itself takes care of AddRef() for
//
methods. We also disallow binding of an array as the method's target
//
object.
COMPILE_ASSERT
(
cef_internal::HasIsMethodTag<RunnableType>::value ||
!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P1
>::value,
p1_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::HasIsMethodTag<RunnableType>::value ||
!is_array<
P1
>::value,
first_bound_argument_to_method_cannot_be_array);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P2
>::value,
p2_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P3
>::value,
p3_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P4
>::value,
p4_is_refcounted_type_and_needs_scoped_refptr);
typedef
cef_internal::BindState<RunnableType, RunType,
void
(
typename
cef_internal::CallbackParamTraits<
P1
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P2
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P3
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P4
>::StorageType)> BindState;
return
Callback<
typename
BindState::UnboundRunType>(
new
BindState
(
cef_internal::MakeRunnable
(functor), p1, p2, p3, p4));
}
template
<
typename
Functor,
typename
P1
,
typename
P2
,
typename
P3
,
typename
P4
,
typename
P5
>
base::Callback<
typename
cef_internal::BindState<
typename
cef_internal::FunctorTraits<Functor>::RunnableType,
typename
cef_internal::FunctorTraits<Functor>::RunType,
void
(
typename
cef_internal::CallbackParamTraits<
P1
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P2
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P3
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P4
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P5
>::StorageType)>
::UnboundRunType>
Bind
(Functor functor,
const
P1
& p1,
const
P2
& p2,
const
P3
& p3,
const
P4
& p4,
const
P5
& p5) {
//
Typedefs for how to store and run the functor.
typedef
typename
cef_internal::FunctorTraits<Functor>::RunnableType RunnableType;
typedef
typename
cef_internal::FunctorTraits<Functor>::RunType RunType;
//
Use RunnableType::RunType instead of RunType above because our
//
checks should below for bound references need to know what the actual
//
functor is going to interpret the argument as.
typedef
cef_internal::FunctionTraits<
typename
RunnableType::RunType>
BoundFunctorTraits;
//
Do not allow binding a non-const reference parameter. Non-const reference
//
parameters are disallowed by the Google style guide. Also, binding a
//
non-const reference parameter can make for subtle bugs because the
//
invoked function will receive a reference to the stored copy of the
//
argument and not the original.
COMPILE_ASSERT
(
!(is_non_const_reference<
typename
BoundFunctorTraits::A1Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A2Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A3Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A4Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A5Type>::value ),
do_not_bind_functions_with_nonconst_ref);
//
For methods, we need to be careful for parameter 1. We do not require
//
a scoped_refptr because BindState<> itself takes care of AddRef() for
//
methods. We also disallow binding of an array as the method's target
//
object.
COMPILE_ASSERT
(
cef_internal::HasIsMethodTag<RunnableType>::value ||
!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P1
>::value,
p1_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::HasIsMethodTag<RunnableType>::value ||
!is_array<
P1
>::value,
first_bound_argument_to_method_cannot_be_array);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P2
>::value,
p2_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P3
>::value,
p3_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P4
>::value,
p4_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P5
>::value,
p5_is_refcounted_type_and_needs_scoped_refptr);
typedef
cef_internal::BindState<RunnableType, RunType,
void
(
typename
cef_internal::CallbackParamTraits<
P1
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P2
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P3
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P4
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P5
>::StorageType)> BindState;
return
Callback<
typename
BindState::UnboundRunType>(
new
BindState
(
cef_internal::MakeRunnable
(functor), p1, p2, p3, p4, p5));
}
template
<
typename
Functor,
typename
P1
,
typename
P2
,
typename
P3
,
typename
P4
,
typename
P5
,
typename
P6
>
base::Callback<
typename
cef_internal::BindState<
typename
cef_internal::FunctorTraits<Functor>::RunnableType,
typename
cef_internal::FunctorTraits<Functor>::RunType,
void
(
typename
cef_internal::CallbackParamTraits<
P1
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P2
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P3
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P4
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P5
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P6
>::StorageType)>
::UnboundRunType>
Bind
(Functor functor,
const
P1
& p1,
const
P2
& p2,
const
P3
& p3,
const
P4
& p4,
const
P5
& p5,
const
P6
& p6) {
//
Typedefs for how to store and run the functor.
typedef
typename
cef_internal::FunctorTraits<Functor>::RunnableType RunnableType;
typedef
typename
cef_internal::FunctorTraits<Functor>::RunType RunType;
//
Use RunnableType::RunType instead of RunType above because our
//
checks should below for bound references need to know what the actual
//
functor is going to interpret the argument as.
typedef
cef_internal::FunctionTraits<
typename
RunnableType::RunType>
BoundFunctorTraits;
//
Do not allow binding a non-const reference parameter. Non-const reference
//
parameters are disallowed by the Google style guide. Also, binding a
//
non-const reference parameter can make for subtle bugs because the
//
invoked function will receive a reference to the stored copy of the
//
argument and not the original.
COMPILE_ASSERT
(
!(is_non_const_reference<
typename
BoundFunctorTraits::A1Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A2Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A3Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A4Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A5Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A6Type>::value ),
do_not_bind_functions_with_nonconst_ref);
//
For methods, we need to be careful for parameter 1. We do not require
//
a scoped_refptr because BindState<> itself takes care of AddRef() for
//
methods. We also disallow binding of an array as the method's target
//
object.
COMPILE_ASSERT
(
cef_internal::HasIsMethodTag<RunnableType>::value ||
!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P1
>::value,
p1_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::HasIsMethodTag<RunnableType>::value ||
!is_array<
P1
>::value,
first_bound_argument_to_method_cannot_be_array);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P2
>::value,
p2_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P3
>::value,
p3_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P4
>::value,
p4_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P5
>::value,
p5_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P6
>::value,
p6_is_refcounted_type_and_needs_scoped_refptr);
typedef
cef_internal::BindState<RunnableType, RunType,
void
(
typename
cef_internal::CallbackParamTraits<
P1
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P2
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P3
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P4
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P5
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P6
>::StorageType)> BindState;
return
Callback<
typename
BindState::UnboundRunType>(
new
BindState
(
cef_internal::MakeRunnable
(functor), p1, p2, p3, p4, p5, p6));
}
template
<
typename
Functor,
typename
P1
,
typename
P2
,
typename
P3
,
typename
P4
,
typename
P5
,
typename
P6
,
typename
P7
>
base::Callback<
typename
cef_internal::BindState<
typename
cef_internal::FunctorTraits<Functor>::RunnableType,
typename
cef_internal::FunctorTraits<Functor>::RunType,
void
(
typename
cef_internal::CallbackParamTraits<
P1
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P2
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P3
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P4
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P5
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P6
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P7
>::StorageType)>
::UnboundRunType>
Bind
(Functor functor,
const
P1
& p1,
const
P2
& p2,
const
P3
& p3,
const
P4
& p4,
const
P5
& p5,
const
P6
& p6,
const
P7
& p7) {
//
Typedefs for how to store and run the functor.
typedef
typename
cef_internal::FunctorTraits<Functor>::RunnableType RunnableType;
typedef
typename
cef_internal::FunctorTraits<Functor>::RunType RunType;
//
Use RunnableType::RunType instead of RunType above because our
//
checks should below for bound references need to know what the actual
//
functor is going to interpret the argument as.
typedef
cef_internal::FunctionTraits<
typename
RunnableType::RunType>
BoundFunctorTraits;
//
Do not allow binding a non-const reference parameter. Non-const reference
//
parameters are disallowed by the Google style guide. Also, binding a
//
non-const reference parameter can make for subtle bugs because the
//
invoked function will receive a reference to the stored copy of the
//
argument and not the original.
COMPILE_ASSERT
(
!(is_non_const_reference<
typename
BoundFunctorTraits::A1Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A2Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A3Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A4Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A5Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A6Type>::value ||
is_non_const_reference<
typename
BoundFunctorTraits::A7Type>::value ),
do_not_bind_functions_with_nonconst_ref);
//
For methods, we need to be careful for parameter 1. We do not require
//
a scoped_refptr because BindState<> itself takes care of AddRef() for
//
methods. We also disallow binding of an array as the method's target
//
object.
COMPILE_ASSERT
(
cef_internal::HasIsMethodTag<RunnableType>::value ||
!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P1
>::value,
p1_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::HasIsMethodTag<RunnableType>::value ||
!is_array<
P1
>::value,
first_bound_argument_to_method_cannot_be_array);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P2
>::value,
p2_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P3
>::value,
p3_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P4
>::value,
p4_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P5
>::value,
p5_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P6
>::value,
p6_is_refcounted_type_and_needs_scoped_refptr);
COMPILE_ASSERT
(!cef_internal::NeedsScopedRefptrButGetsRawPtr<
P7
>::value,
p7_is_refcounted_type_and_needs_scoped_refptr);
typedef
cef_internal::BindState<RunnableType, RunType,
void
(
typename
cef_internal::CallbackParamTraits<
P1
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P2
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P3
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P4
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P5
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P6
>::StorageType,
typename
cef_internal::CallbackParamTraits<
P7
>::StorageType)> BindState;
return
Callback<
typename
BindState::UnboundRunType>(
new
BindState
(
cef_internal::MakeRunnable
(functor), p1, p2, p3, p4, p5, p6,
p7));
}
}
//
namespace base
#
endif
//
!USING_CHROMIUM_INCLUDES
#
endif
//
CEF_INCLUDE_BASE_CEF_BIND_H_
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