o
    i"                     @   s   d dl Z d dlmZmZ d dlmZmZmZ d dl	m
Z
 d dlmZmZmZmZmZ ddlmZmZmZ g dZG d	d
 d
eZG dd deZG dd deZG dd deZe ZG dd deZdS )    N)ABCabstractmethod)_getattribute_Picklerwhichmodule)
ModuleType)AnyDictListOptionalTuple   )demangleget_mangle_prefix
is_mangled)ObjNotFoundErrorObjMismatchErrorImporterOrderedImporterc                   @      e Zd ZdZdS )r   zHRaised when an importer cannot find an object by searching for its name.N__name__
__module____qualname____doc__ r   r   e/var/www/html/eduruby.in/lip-sync/lip-sync-env/lib/python3.10/site-packages/torch/package/importer.pyr          r   c                   @   r   )r   z]Raised when an importer found a different object with the same name as the user-provided one.Nr   r   r   r   r   r      r   r   c                	   @   sr   e Zd ZU dZeeef ed< ededefddZ	dde
d	ee deeef fd
dZde
d	edefddZdS )r   ad  Represents an environment to import modules from.

    By default, you can figure out what module an object belongs by checking
    __module__ and importing the result using __import__ or importlib.import_module.

    torch.package introduces module importers other than the default one.
    Each PackageImporter introduces a new namespace. Potentially a single
    name (e.g. 'foo.bar') is present in multiple namespaces.

    It supports two main operations:
        import_module: module_name -> module object
        get_name: object -> (parent module name, name of obj within module)

    The guarantee is that following round-trip will succeed or throw an ObjNotFoundError/ObjMisMatchError.
        module_name, obj_name = env.get_name(obj)
        module = env.import_module(module_name)
        obj2 = getattr(module, obj_name)
        assert obj1 is obj2
    modulesmodule_namereturnc                 C   s   dS )zvImport `module_name` from this environment.

        The contract is the same as for importlib.import_module.
        Nr   selfr   r   r   r   import_module3   s   zImporter.import_moduleNobjnamec                    sN   du r0|r0t jt|du r0t|dd}|dur0z| }t|tr%| W n	 ty/   Y nw  du r:t|dd  du rA|j 	| }t
|}z|}t| \}}	W n tttfyp   t| d| d  dw ||u ry| fS  fdd}
|
|\}}}|
|\}}}d| d	| d
| d| d| d| d}t|)am  Given an object, return a name that can be used to retrieve the
        object from this environment.

        Args:
            obj: An object to get the the module-environment-relative name for.
            name: If set, use this name instead of looking up __name__ or __qualname__ on `obj`.
                This is only here to match how Pickler handles __reduce__ functions that return a string,
                don't use otherwise.
        Returns:
            A tuple (parent_module_name, attr_name) that can be used to retrieve `obj` from this environment.
            Use it like:
                mod = importer.import_module(parent_module_name)
                obj = getattr(mod, attr_name)

        Raises:
            ObjNotFoundError: we couldn't retrieve `obj by name.
            ObjMisMatchError: we found a different object with the same name as `obj`.
        N
__reduce__r   z was not found as .c                    sP    d usJ  |  }t|}|rt|nd}|r!dt| nd}|||fS )Nzthe current Python environmentzthe importer for z'sys_importer')r   r   r   )r$   r   Zis_mangled_locationZimporter_namer%   r"   r   r   get_obj_infoq   s   

z'Importer.get_name.<locals>.get_obj_infoz

The object provided is from 'z', which is coming from z.
However, when we import 'z', it's coming from z@.
To fix this, make sure this 'PackageExporter's importer lists z before )r   dispatchgettypegetattr
isinstancestr	Exceptionr   r   r   r#   r   ImportErrorKeyErrorAttributeErrorr   r   )r"   r$   r%   reducervZorig_module_namer   moduleobj2_r*   Zobj_module_nameZobj_locationZobj_importer_nameZobj2_module_nameZobj2_locationZobj2_importer_namemsgr   r)   r   get_name;   sZ    

zImporter.get_namec              	   C   s   t |dd}|dur|S | j  D ]*\}}|dks#|dks#|du r$qzt||d |u r3|W   S W q ty=   Y qw dS )a  Find the module name an object belongs to.

        This should be considered internal for end-users, but developers of
        an importer can override it to customize the behavior.

        Taken from pickle.py, but modified to exclude the search into sys.modules
        r   N__main____mp_main__r   )r.   r   copyitemsr   r4   )r"   r$   r%   r   r7   r   r   r   r      s    
zImporter.whichmoduleN)r   r   r   r   r	   r0   r   __annotations__r   r#   r   r   r   r;   r   r   r   r   r   r      s   
 $Qr   c                   @   s4   e Zd ZdZdefddZdededefdd	Zd
S )_SysImporterz;An importer that implements the default behavior of Python.r   c                 C   s
   t |S r@   )	importlibr#   r!   r   r   r   r#         
z_SysImporter.import_moduler$   r%   r    c                 C   s
   t ||S r@   )_pickle_whichmodule)r"   r$   r%   r   r   r   r      rD   z_SysImporter.whichmoduleN)r   r   r   r   r0   r#   r   r   r   r   r   r   rB      s    rB   c                   @   sH   e Zd ZdZdd Zdd Zdedefdd	Zd
e	dedefddZ
dS )r   zA compound importer that takes a list of importers and tries them one at a time.

    The first importer in the list that returns a result "wins".
    c                 G   s   t || _d S r@   )list
_importers)r"   argsr   r   r   __init__   s   zOrderedImporter.__init__c                 C   s6   t |ddsdS t|dsdS t|dsdS |jdu S )a  Returns true iff this module is an empty PackageNode in a torch.package.

        If you intern `a.b` but never use `a` in your code, then `a` will be an
        empty module with no source. This can break cases where we are trying to
        re-package an object after adding a real dependency on `a`, since
        OrderedImportere will resolve `a` to the dummy package and stop there.

        See: https://github.com/pytorch/pytorch/pull/71520#issuecomment-1029603769
        Z__torch_package__F__path____file__TN)r.   hasattrrK   )r"   r7   r   r   r   _is_torchpackage_dummy   s   



z&OrderedImporter._is_torchpackage_dummyr   r    c                 C   s   d }| j D ]3}t|tst| dz||}| |r W q|W   S  ty8 } z|}W Y d }~qd }~ww |d ur?|t|)NzP is not a Importer. All importers in OrderedImporter must inherit from Importer.)rG   r/   r   	TypeErrorr#   rM   ModuleNotFoundError)r"   r   Zlast_errimporterr7   errr   r   r   r#      s$   




zOrderedImporter.import_moduler$   r%   c                 C   s,   | j D ]}|||}|dkr|  S qdS )Nr<   )rG   r   )r"   r$   r%   rP   r   r   r   r   r      s   
zOrderedImporter.whichmoduleN)r   r   r   r   rI   rM   r0   r   r#   r   r   r   r   r   r   r      s    r   )rC   abcr   r   pickler   r   r   rE   typesr   typingr   r	   r
   r   r   Z	_manglingr   r   r   __all__r1   r   r   r   rB   Zsys_importerr   r   r   r   r   <module>   s     
