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frames.pyo
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� �� Rc @ s� d Z d d l Z d d l m Z d d l m Z d d l Z d d l Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d S( s2 Internal functions for working with frame-filters.i����N( t FrameIterator( t FrameDecoratorc C s t | d d � S( sC Internal worker function to return the frame-filter's priority from a frame filter object. This is a fail free function as it is used in sorting and filtering. If a badly implemented frame filter does not implement the priority attribute, return zero (otherwise sorting/filtering will fail and prevent other frame filters from executing). Arguments: filter_item: An object conforming to the frame filter interface. Returns: The priority of the frame filter from the "priority" attribute, or zero. t priorityi ( t getattr( t filter_item( ( s# /usr/share/gdb/python/gdb/frames.pyt get_priority s c C s | | _ d S( s� Internal worker function to set the frame-filter's priority. Arguments: filter_item: An object conforming to the frame filter interface. priority: The priority to assign as an integer. N( R ( R R ( ( s# /usr/share/gdb/python/gdb/frames.pyt set_priority- s c C s t | d t � S( sE Internal worker function to return a filter's enabled state from a frame filter object. This is a fail free function as it is used in sorting and filtering. If a badly implemented frame filter does not implement the enabled attribute, return False (otherwise sorting/filtering will fail and prevent other frame filters from executing). Arguments: filter_item: An object conforming to the frame filter interface. Returns: The enabled state of the frame filter from the "enabled" attribute, or False. t enabled( R t False( R ( ( s# /usr/share/gdb/python/gdb/frames.pyt get_enabled8 s c C s | | _ d S( s� Internal Worker function to set the frame-filter's enabled state. Arguments: filter_item: An object conforming to the frame filter interface. state: True or False, depending on desired state. N( R ( R t state( ( s# /usr/share/gdb/python/gdb/frames.pyt set_enabledN s c C s� | d k rb t j j � } | t j � j j � } x+ t j � D] } | | j j � } | SWn | d k ru t j S| d k r� t j � } | j Sx* t j � D] } | | j k r� | j Sq� Wd | d } t j | � � d S( s Internal Worker function to return the frame filter dictionary, depending on the name supplied as an argument. If the name is not "all", "global" or "progspace", it is assumed to name an object-file. Arguments: name: The name of the list, as specified by GDB user commands. Returns: A dictionary object for a single specified dictionary, or a list containing all the items for "all" Raises: gdb.GdbError: A dictionary of that name cannot be found. t allt globalt progspaces) Cannot find frame-filter dictionary for 't 'N( t gdbt frame_filterst valuest current_progspacet objfilest filenamet GdbError( t namet all_dictst objfilet cpt msg( ( s# /usr/share/gdb/python/gdb/frames.pyt return_listZ s c C s� g } x' t j � D] } | | j j � } q Wt j � } | | j j � } | t j j � } t | d t d t �} t t | � } | S( s* Internal Worker function to merge all known frame-filter lists, prune any filters with the state set to "disabled", and sort the list on the frame-filter's "priority" attribute. Returns: sorted_list: A sorted, pruned list of frame filters to execute. t keyt reverse( R R R R R t sortedR t Truet filterR ( t all_filtersR R t sorted_frame_filters( ( s# /usr/share/gdb/python/gdb/frames.pyt _sort_list� s c C s t � } t | � d k r d St | � } t j t | � } x | D] } | j | � } qD W| d k r� d } t | � } t j � } x> | D]6 } | | k r� | j � n | d } | j | � q� Wt | � S| d k r� d } n | d } t j | | | � } | S( s Internal function called from GDB that will execute the chain of frame filters. Each filter is executed in priority order. After the execution completes, slice the iterator to frame_low - frame_high range. Arguments: frame: The initial frame. frame_low: The low range of the slice. If this is a negative integer then it indicates a backward slice (ie bt -4) which counts backward from the last frame in the backtrace. frame_high: The high range of the slice. If this is -1 then it indicates all frames until the end of the stack from frame_low. Returns: frame_iterator: The sliced iterator after all frame filters have had a change to execute, or None if no frame filters are registered. i i i����N( R$ t lent NoneR t itertoolst imapR R! t abst collectionst dequet popleftt appendt itert islice( t framet frame_lowt frame_hight sorted_listt frame_iteratort fft countt slice_lengtht slicedt frame_item( ( s# /usr/share/gdb/python/gdb/frames.pyt execute_frame_filters� s, ( t __doc__R t gdb.FrameIteratorR t gdb.FrameDecoratorR R' R* R R R R R R$ R: ( ( ( s# /usr/share/gdb/python/gdb/frames.pyt <module> s +