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Contains CCompiler, an abstract base class that defines the interface
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by real compiler classes. Also has some utility methods used by
several compiler classes.
The basic idea behind a compiler abstraction class is that each
instance can be used for all the compile/link steps in building a
single project. Thus, attributes common to all of those compile and
link steps -- include directories, macros to define, libraries to link
against, etc. -- are attributes of the compiler instance. To allow for
variability in how individual files are treated, most of those
attributes may be varied on a per-compilation or per-link basis.
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r �key� r �+/usr/lib64/python3.6/distutils/ccompiler.py�__init__U s zCCompiler.__init__c K s@ x:|D ]2}|| j kr(td|| jjf ��| j||| � qW dS )a� Define the executables (and options for them) that will be run
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executables that may be specified here depends on the compiler
class (via the 'executables' class attribute), but most will have:
compiler the C/C++ compiler
linker_so linker used to create shared objects and libraries
linker_exe linker used to create binary executables
archiver static library creator
On platforms with a command-line (Unix, DOS/Windows), each of these
is a string that will be split into executable name and (optional)
list of arguments. (Splitting the string is done similarly to how
Unix shells operate: words are delimited by spaces, but quotes and
backslashes can override this. See
'distutils.util.split_quoted()'.)
z$unknown executable '%s' for class %sN)r �
ValueError� __class__�__name__r )r �kwargsr r r r �set_executablesy s
zCCompiler.set_executablesc C s, t |t�r t| |t|�� n t| ||� d S )N)�
isinstance�str�setattrr )r r �valuer r r r � s
zCCompiler.set_executablec C s0 d}x&| j D ] }|d |kr |S |d7 }q W d S )Nr � )r )r �name�i�defnr r r � _find_macro� s zCCompiler._find_macroc C sd x^|D ]V}t |t�oFt|�dkoFt |d t�s:|d dkoFt |d t�std| d d ��qW dS ) z�Ensures that every element of 'definitions' is a valid macro
definition, ie. either (name,value) 2-tuple or a (name,) tuple. Do
nothing if all definitions are OK, raise TypeError otherwise.
r( � Nr z invalid macro definition '%s': z.must be tuple (string,), (string, string), or z(string, None))r( r- )r$ �tuple�lenr% � TypeError)r Z definitionsr+ r r r �_check_macro_definitions� s
z"CCompiler._check_macro_definitionsc C s. | j |�}|dk r| j|= | jj||f� dS )a_ Define a preprocessor macro for all compilations driven by this
compiler object. The optional parameter 'value' should be a
string; if it is not supplied, then the macro will be defined
without an explicit value and the exact outcome depends on the
compiler used (XXX true? does ANSI say anything about this?)
N)r, r �append)r r) r' r* r r r � define_macro� s
zCCompiler.define_macroc C s0 | j |�}|dk r| j|= |f}| jj|� dS )a� Undefine a preprocessor macro for all compilations driven by
this compiler object. If the same macro is defined by
'define_macro()' and undefined by 'undefine_macro()' the last call
takes precedence (including multiple redefinitions or
undefinitions). If the macro is redefined/undefined on a
per-compilation basis (ie. in the call to 'compile()'), then that
takes precedence.
N)r, r r2 )r r) r* Zundefnr r r �undefine_macro� s
zCCompiler.undefine_macroc C s | j j|� dS )z�Add 'dir' to the list of directories that will be searched for
header files. The compiler is instructed to search directories in
the order in which they are supplied by successive calls to
'add_include_dir()'.
N)r r2 )r �dirr r r �add_include_dir� s zCCompiler.add_include_dirc C s |dd� | _ dS )ay Set the list of directories that will be searched to 'dirs' (a
list of strings). Overrides any preceding calls to
'add_include_dir()'; subsequence calls to 'add_include_dir()' add
to the list passed to 'set_include_dirs()'. This does not affect
any list of standard include directories that the compiler may
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N)r )r �dirsr r r �set_include_dirs� s zCCompiler.set_include_dirsc C s | j j|� dS )a� Add 'libname' to the list of libraries that will be included in
all links driven by this compiler object. Note that 'libname'
should *not* be the name of a file containing a library, but the
name of the library itself: the actual filename will be inferred by
the linker, the compiler, or the compiler class (depending on the
platform).
The linker will be instructed to link against libraries in the
order they were supplied to 'add_library()' and/or
'set_libraries()'. It is perfectly valid to duplicate library
names; the linker will be instructed to link against libraries as
many times as they are mentioned.
N)r r2 )r �libnamer r r � add_library� s zCCompiler.add_libraryc C s |dd� | _ dS )z�Set the list of libraries to be included in all links driven by
this compiler object to 'libnames' (a list of strings). This does
not affect any standard system libraries that the linker may
include by default.
N)r )r Zlibnamesr r r �
set_libraries� s zCCompiler.set_librariesc C s | j j|� dS )a' Add 'dir' to the list of directories that will be searched for
libraries specified to 'add_library()' and 'set_libraries()'. The
linker will be instructed to search for libraries in the order they
are supplied to 'add_library_dir()' and/or 'set_library_dirs()'.
N)r r2 )r r5 r r r �add_library_dir s zCCompiler.add_library_dirc C s |dd� | _ dS )z�Set the list of library search directories to 'dirs' (a list of
strings). This does not affect any standard library search path
that the linker may search by default.
N)r )r r7 r r r �set_library_dirs s zCCompiler.set_library_dirsc C s | j j|� dS )zlAdd 'dir' to the list of directories that will be searched for
shared libraries at runtime.
N)r r2 )r r5 r r r �add_runtime_library_dir s z!CCompiler.add_runtime_library_dirc C s |dd� | _ dS )z�Set the list of directories to search for shared libraries at
runtime to 'dirs' (a list of strings). This does not affect any
standard search path that the runtime linker may search by
default.
N)r )r r7 r r r �set_runtime_library_dirs s z"CCompiler.set_runtime_library_dirsc C s | j j|� dS )z�Add 'object' to the list of object files (or analogues, such as
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object.
N)r r2 )r �objectr r r �add_link_object s zCCompiler.add_link_objectc C s |dd� | _ dS )z�Set the list of object files (or analogues) to be included in
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files that the linker may include by default (such as system
libraries).
N)r )r r r r r �set_link_objects( s zCCompiler.set_link_objectsc C s. |dkr| j }nt|t�s"td��|dkr2| j}n"t|t�rL|| jpFg }ntd��|dkrd| j}n*t|ttf�r�t|�| jp�g }ntd��|dkr�g }| j|d|d�}t |�t |�ks�t
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f| | < q�W ||||| fS )z;Process arguments and decide which source files to compile.Nz%'output_dir' must be a string or Nonez/'macros' (if supplied) must be a list of tuplesz6'include_dirs' (if supplied) must be a list of stringsr )� strip_dirr r( )r r$ r% r0 r �listr r. �object_filenamesr/ �AssertionError�gen_preprocess_options�range�os�path�splitextr �dirname)r Zoutdirr Zincdirs�sources�dependsZextrar �pp_opts�buildr* �src�obj�extr r r �_setup_compile6 s:
zCCompiler._setup_compilec C s0 |dg }|r dg|d d�< |r,||d d�< |S )Nz-cz-gr r )r rO �debugZbefore�cc_argsr r r � _get_cc_argsa s
zCCompiler._get_cc_argsc C s� |dkr| j }nt|t�s"td��|dkr2| j}n"t|t�rL|| jpFg }ntd��|dkrd| j}n*t|ttf�r�t|�| jp�g }ntd��|||fS )a' Typecheck and fix-up some of the arguments to the 'compile()'
method, and return fixed-up values. Specifically: if 'output_dir'
is None, replaces it with 'self.output_dir'; ensures that 'macros'
is a list, and augments it with 'self.macros'; ensures that
'include_dirs' is a list, and augments it with 'self.include_dirs'.
Guarantees that the returned values are of the correct type,
i.e. for 'output_dir' either string or None, and for 'macros' and
'include_dirs' either list or None.
Nz%'output_dir' must be a string or Nonez/'macros' (if supplied) must be a list of tuplesz6'include_dirs' (if supplied) must be a list of strings)r r$ r% r0 r rD r r. )r r r r r r r �_fix_compile_argsj s
zCCompiler._fix_compile_argsc C s* | j ||d�}t|�t|�ks"t�|i fS )a+ Decide which souce files must be recompiled.
Determine the list of object files corresponding to 'sources',
and figure out which ones really need to be recompiled.
Return a list of all object files and a dictionary telling
which source files can be skipped.
)r )rE r/ rF )r rM r rN r r r r �
_prep_compile� s zCCompiler._prep_compilec C sH t |ttf�std��t|�}|dkr.| j}nt |t�s@td��||fS )z�Typecheck and fix up some arguments supplied to various methods.
Specifically: ensure that 'objects' is a list; if output_dir is
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z,'objects' must be a list or tuple of stringsNz%'output_dir' must be a string or None)r$ rD r. r0 r r% )r r r r r r �_fix_object_args� s
zCCompiler._fix_object_argsc C s� |dkr| j }n*t|ttf�r2t|�| j p,g }ntd��|dkrJ| j}n*t|ttf�rlt|�| jpfg }ntd��|dkr�| j}n*t|ttf�r�t|�| jp�g }ntd��|||fS )a; Typecheck and fix up some of the arguments supplied to the
'link_*' methods. Specifically: ensure that all arguments are
lists, and augment them with their permanent versions
(eg. 'self.libraries' augments 'libraries'). Return a tuple with
fixed versions of all arguments.
Nz3'libraries' (if supplied) must be a list of stringsz6'library_dirs' (if supplied) must be a list of stringsz>'runtime_library_dirs' (if supplied) must be a list of strings)r r$ rD r. r0 r r )r r r r r r r �
_fix_lib_args� s& zCCompiler._fix_lib_argsc C s2 | j r
dS | jr t||dd�}n
t||�}|S dS )zjReturn true if we need to relink the files listed in 'objects'
to recreate 'output_file'.
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zCCompiler._need_linkc C s� t |t�s|g}d}t| j�}x^|D ]V}tjj|�\}}| jj|�}y | jj |�}||k rb|}|}W q$ t
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rx Y q$X q$W |S )z|Detect the language of a given file, or list of files. Uses
language_map, and language_order to do the job.
N) r$ rD r/ �language_orderrI rJ rK � language_map�get�indexr ) r rM Zlangrb �source�baserS ZextlangZextindexr r r �detect_language� s
zCCompiler.detect_languagec C s dS )a� Preprocess a single C/C++ source file, named in 'source'.
Output will be written to file named 'output_file', or stdout if
'output_file' not supplied. 'macros' is a list of macro
definitions as for 'compile()', which will augment the macros set
with 'define_macro()' and 'undefine_macro()'. 'include_dirs' is a
list of directory names that will be added to the default list.
Raises PreprocessError on failure.
Nr )r rc r] r r �
extra_preargs�extra_postargsr r r �
preprocess� s zCCompiler.preprocessc C sz | j ||||||�\}} }}
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� q2W | S )aK Compile one or more source files.
'sources' must be a list of filenames, most likely C/C++
files, but in reality anything that can be handled by a
particular compiler and compiler class (eg. MSVCCompiler can
handle resource files in 'sources'). Return a list of object
filenames, one per source filename in 'sources'. Depending on
the implementation, not all source files will necessarily be
compiled, but all corresponding object filenames will be
returned.
If 'output_dir' is given, object files will be put under it, while
retaining their original path component. That is, "foo/bar.c"
normally compiles to "foo/bar.o" (for a Unix implementation); if
'output_dir' is "build", then it would compile to
"build/foo/bar.o".
'macros', if given, must be a list of macro definitions. A macro
definition is either a (name, value) 2-tuple or a (name,) 1-tuple.
The former defines a macro; if the value is None, the macro is
defined without an explicit value. The 1-tuple case undefines a
macro. Later definitions/redefinitions/ undefinitions take
precedence.
'include_dirs', if given, must be a list of strings, the
directories to add to the default include file search path for this
compilation only.
'debug' is a boolean; if true, the compiler will be instructed to
output debug symbols in (or alongside) the object file(s).
'extra_preargs' and 'extra_postargs' are implementation- dependent.
On platforms that have the notion of a command-line (e.g. Unix,
DOS/Windows), they are most likely lists of strings: extra
command-line arguments to prepand/append to the compiler command
line. On other platforms, consult the implementation class
documentation. In any event, they are intended as an escape hatch
for those occasions when the abstract compiler framework doesn't
cut the mustard.
'depends', if given, is a list of filenames that all targets
depend on. If a source file is older than any file in
depends, then the source file will be recompiled. This
supports dependency tracking, but only at a coarse
granularity.
Raises CompileError on failure.
)rT rW �KeyError�_compile)r rM r r r rU rf rg rN r rO rP rV rR rQ rS r r r �compile� s 6
zCCompiler.compilec C s dS )z Compile 'src' to product 'obj'.Nr )r rR rQ rS rV rg rO r r r rj C s zCCompiler._compilec C s dS )a& Link a bunch of stuff together to create a static library file.
The "bunch of stuff" consists of the list of object files supplied
as 'objects', the extra object files supplied to
'add_link_object()' and/or 'set_link_objects()', the libraries
supplied to 'add_library()' and/or 'set_libraries()', and the
libraries supplied as 'libraries' (if any).
'output_libname' should be a library name, not a filename; the
filename will be inferred from the library name. 'output_dir' is
the directory where the library file will be put.
'debug' is a boolean; if true, debugging information will be
included in the library (note that on most platforms, it is the
compile step where this matters: the 'debug' flag is included here
just for consistency).
'target_lang' is the target language for which the given objects
are being compiled. This allows specific linkage time treatment of
certain languages.
Raises LibError on failure.
Nr )r r �output_libnamer rU � target_langr r r �create_static_libI s zCCompiler.create_static_libZ
shared_objectZshared_library�
executablec C s t �dS )au Link a bunch of stuff together to create an executable or
shared library file.
The "bunch of stuff" consists of the list of object files supplied
as 'objects'. 'output_filename' should be a filename. If
'output_dir' is supplied, 'output_filename' is relative to it
(i.e. 'output_filename' can provide directory components if
needed).
'libraries' is a list of libraries to link against. These are
library names, not filenames, since they're translated into
filenames in a platform-specific way (eg. "foo" becomes "libfoo.a"
on Unix and "foo.lib" on DOS/Windows). However, they can include a
directory component, which means the linker will look in that
specific directory rather than searching all the normal locations.
'library_dirs', if supplied, should be a list of directories to
search for libraries that were specified as bare library names
(ie. no directory component). These are on top of the system
default and those supplied to 'add_library_dir()' and/or
'set_library_dirs()'. 'runtime_library_dirs' is a list of
directories that will be embedded into the shared library and used
to search for other shared libraries that *it* depends on at
run-time. (This may only be relevant on Unix.)
'export_symbols' is a list of symbols that the shared library will
export. (This appears to be relevant only on Windows.)
'debug' is as for 'compile()' and 'create_static_lib()', with the
slight distinction that it actually matters on most platforms (as
opposed to 'create_static_lib()', which includes a 'debug' flag
mostly for form's sake).
'extra_preargs' and 'extra_postargs' are as for 'compile()' (except
of course that they supply command-line arguments for the
particular linker being used).
'target_lang' is the target language for which the given objects
are being compiled. This allows specific linkage time treatment of
certain languages.
Raises LinkError on failure.
N)�NotImplementedError)r Z target_descr �output_filenamer r r r �export_symbolsrU rf rg �
build_temprm r r r �linki s 9zCCompiler.linkc
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d S )N�shared)�lib_type)rt r �SHARED_LIBRARY�library_filename)
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EXECUTABLE�executable_filename) r r Zoutput_prognamer r r r rU rf rg rm r r r �link_executable� s
zCCompiler.link_executablec C s t �dS )zkReturn the compiler option to add 'dir' to the list of
directories searched for libraries.
N)rp )r r5 r r r �library_dir_option� s z CCompiler.library_dir_optionc C s t �dS )zsReturn the compiler option to add 'dir' to the list of
directories searched for runtime libraries.
N)rp )r r5 r r r �runtime_library_dir_option� s z$CCompiler.runtime_library_dir_optionc C s t �dS )zReturn the compiler option to add 'lib' to the list of libraries
linked into the shared library or executable.
N)rp )r �libr r r �library_option� s zCCompiler.library_optionc C s� ddl }|dkrg }|dkr g }|dkr,g }|dkr8g }|jd|dd�\}}tj|d�} z.x|D ]}
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zCCompiler.has_functionc C s t �dS )aH Search the specified list of directories for a static or shared
library file 'lib' and return the full path to that file. If
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the current platform). Return None if 'lib' wasn't found in any of
the specified directories.
N)rp )r r7 r� rU r r r �find_library_file# s zCCompiler.find_library_file� c C s� |d kr d}g }x�|D ]|}t jj|�\}}t jj|�d }|t jj|�d � }|| jkrhtd||f ��|rxt jj|�}|jt jj ||| j
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zCCompiler.object_filenamesc C s0 |d k s t �|r tjj|�}tjj||| j �S )N)rF rI rJ r� r� �shared_lib_extension)r r� rC r r r r �shared_object_filename_ s z CCompiler.shared_object_filenamec C s4 |d k s t �|r tjj|�}tjj||| jp.d �S )Nr� )rF rI rJ r� r� �
exe_extension)r r� rC r r r r r} e s z CCompiler.executable_filename�staticc
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xcode_stubz?'lib_type' must be "static", "shared", "dylib", or "xcode_stub"Z _lib_formatZ_lib_extensionr� )r� ru r� r� )rF r �getattrrI rJ �splitr� )
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