@ -12,6 +12,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
import copy
import functools
import os . path
import typing
@ -361,6 +362,16 @@ class VisualStudioLikeCPPCompilerMixin:
""" Mixin for C++ specific method overrides in MSVC-like compilers. """
VC_VERSION_MAP = {
' none ' : ( True , None ) ,
' vc++11 ' : ( True , 11 ) ,
' vc++14 ' : ( True , 14 ) ,
' vc++17 ' : ( True , 17 ) ,
' c++11 ' : ( False , 11 ) ,
' c++14 ' : ( False , 14 ) ,
' c++17 ' : ( False , 17 ) ,
}
def get_option_link_args ( self , options ) :
return options [ ' cpp_winlibs ' ] . value [ : ]
@ -387,34 +398,12 @@ class VisualStudioLikeCPPCompilerMixin:
elif eh . value != ' none ' :
args . append ( ' /EH ' + eh . value )
vc_version_map = {
' none ' : ( True , None ) ,
' vc++11 ' : ( True , 11 ) ,
' vc++14 ' : ( True , 14 ) ,
' vc++17 ' : ( True , 17 ) ,
' c++11 ' : ( False , 11 ) ,
' c++14 ' : ( False , 14 ) ,
' c++17 ' : ( False , 17 ) }
permissive , ver = vc_version_map [ options [ ' cpp_std ' ] . value ]
if ver is None :
pass
elif ver == 11 :
# Note: there is no explicit flag for supporting C++11; we attempt to do the best we can
# which means setting the C++ standard version to C++14, in compilers that support it
# (i.e., after VS2015U3)
# if one is using anything before that point, one cannot set the standard.
if self . id == ' clang-cl ' or version_compare ( self . version , ' >=19.00.24210 ' ) :
mlog . warning ( ' MSVC does not support C++11; '
' attempting best effort; setting the standard to C++14 ' )
args . append ( ' /std:c++14 ' )
else :
mlog . warning ( ' This version of MSVC does not support cpp_std arguments ' )
else :
permissive , ver = self . VC_VERSION_MAP [ options [ ' cpp_std ' ] . value ]
if ver is not None :
args . append ( ' /std:c++ {} ' . format ( ver ) )
if not permissive and version_compare ( self . version , ' >=19.11 ' ) :
if not permissive :
args . append ( ' /permissive- ' )
return args
@ -424,7 +413,33 @@ class VisualStudioLikeCPPCompilerMixin:
return CLikeCompiler . get_compiler_check_args ( self )
class VisualStudioCPPCompiler ( VisualStudioLikeCPPCompilerMixin , VisualStudioLikeCompiler , CPPCompiler ) :
class CPP11AsCPP14Mixin :
""" Mixin class for VisualStudio and ClangCl to replace C++11 std with C++14.
This is a limitation of Clang and MSVC that ICL doesn ' t share.
"""
def get_option_compile_args ( self , options ) :
# Note: there is no explicit flag for supporting C++11; we attempt to do the best we can
# which means setting the C++ standard version to C++14, in compilers that support it
# (i.e., after VS2015U3)
# if one is using anything before that point, one cannot set the standard.
if options [ ' cpp_std ' ] . value in { ' vc++11 ' , ' c++11 ' } :
mlog . warning ( self . id , ' does not support C++11; ' ,
' attempting best effort; setting the standard to C++14 ' )
# Don't mutate anything we're going to change, we need to use
# deepcopy since we're messing with members, and we can't simply
# copy the members because the option proxy doesn't support it.
options = copy . deepcopy ( options )
if options [ ' cpp_std ' ] . value == ' vc++11 ' :
options [ ' cpp_std ' ] . value = ' vc++14 '
else :
options [ ' cpp_std ' ] . value = ' c++14 '
return super ( ) . get_option_compile_args ( options )
class VisualStudioCPPCompiler ( CPP11AsCPP14Mixin , VisualStudioLikeCPPCompilerMixin , VisualStudioLikeCompiler , CPPCompiler ) :
def __init__ ( self , exelist , version , is_cross , exe_wrap , target ) :
CPPCompiler . __init__ ( self , exelist , version , is_cross , exe_wrap )
VisualStudioLikeCompiler . __init__ ( self , target )
@ -435,14 +450,29 @@ class VisualStudioCPPCompiler(VisualStudioLikeCPPCompilerMixin, VisualStudioLike
cpp_stds = [ ' none ' , ' c++11 ' , ' vc++11 ' ]
# Visual Studio 2015 and later
if version_compare ( self . version , ' >=19 ' ) :
cpp_stds . extend ( [ ' c++14 ' , ' vc++14 ' , ' c++latest' , ' vc++latest ' ] )
cpp_stds . extend ( [ ' c++14 ' , ' c++latest ' , ' vc++latest ' ] )
# Visual Studio 2017 and later
if version_compare ( self . version , ' >=19.11 ' ) :
cpp_stds . extend ( [ ' c++17 ' , ' vc++17 ' ] )
cpp_stds . extend ( [ ' vc++14 ' , ' c++17' , ' vc++17 ' ] )
return self . _get_options_impl ( super ( ) . get_options ( ) , cpp_stds )
def get_option_compile_args ( self , options ) :
if options [ ' cpp_std ' ] . value != ' none ' and version_compare ( self . version , ' <19.00.24210 ' ) :
mlog . warning ( ' This version of MSVC does not support cpp_std arguments ' )
options = copy . copy ( options )
options [ ' cpp_std ' ] . value = ' none '
args = super ( ) . get_option_compile_args ( options )
if version_compare ( self . version , ' <19.11 ' ) :
try :
i = args . index ( ' /permissive- ' )
except ValueError :
return args
del args [ i ]
return args
class ClangClCPPCompiler ( VisualStudioLikeCPPCompilerMixin , VisualStudioLikeCompiler , CPPCompiler ) :
class ClangClCPPCompiler ( CPP11AsCPP14Mixin , VisualStudioLikeCPPCompilerMixin , VisualStudioLikeCompiler , CPPCompiler ) :
def __init__ ( self , exelist , version , is_cross , exe_wrap , target ) :
CPPCompiler . __init__ ( self , exelist , version , is_cross , exe_wrap )
VisualStudioLikeCompiler . __init__ ( self , target )