Current File : //lib64/python3.8/__pycache__/bdb.cpython-38.pyc
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� Zdd� ZG dd� de �Zdd� Zdd� Zdd� ZdS )zDebugger basics� N)� CO_GENERATOR� CO_COROUTINE�CO_ASYNC_GENERATOR�BdbQuit�Bdb�
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dd� Zdd� Zdd � Zd d � Zd d � Zd!d"� Zd#d$� Zd\d&d'�Zd]d(d)�Zd*d+� Zd,d-� Zd.d/� Zd^d0d1�Zd2d3� Zd4d5� Z d_d7d8�Z d9d:� Z d;d<� Z d=d>� Z d?d@� Z!dAdB� Z"dCdD� Z#dEdF� Z$dGdH� Z%dIdJ� Z&dKdL� Z'dMdN� Z(d`dPdQ�Z)dadRdS�Z*dbdTdU�Z+dVdW� Z,dXdY� Z-dZe-_.dS )cr a Generic Python debugger base class.
This class takes care of details of the trace facility;
a derived class should implement user interaction.
The standard debugger class (pdb.Pdb) is an example.
The optional skip argument must be an iterable of glob-style
module name patterns. The debugger will not step into frames
that originate in a module that matches one of these patterns.
Whether a frame is considered to originate in a certain module
is determined by the __name__ in the frame globals.
Nc C s( |r t |�nd | _i | _i | _d | _d S )N)�set�skip�breaks�fncache�frame_returning)�selfr r r r
�__init__ s z Bdb.__init__c C sR |d|dd� d kr |S | j �|�}|sNtj�|�}tj�|�}|| j |< |S )a% Return canonical form of filename.
For real filenames, the canonical form is a case-normalized (on
case insensitive filesystems) absolute path. 'Filenames' with
angle brackets, such as "<stdin>", generated in interactive
mode, are returned unchanged.
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z Bdb.canonicc C s& ddl }|�� d| _| �dd� dS )z5Set values of attributes as ready to start debugging.r N)� linecache�
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dS |dkr | �|�S |dkr0| �||�S |dkrD| �||�S |dkrX| �||�S |dkrf| jS |dkrt| jS |dkr�| jS td t|�� | jS )
aO Dispatch a trace function for debugged frames based on the event.
This function is installed as the trace function for debugged
frames. Its return value is the new trace function, which is
usually itself. The default implementation decides how to
dispatch a frame, depending on the type of event (passed in as a
string) that is about to be executed.
The event can be one of the following:
line: A new line of code is going to be executed.
call: A function is about to be called or another code block
is entered.
return: A function or other code block is about to return.
exception: An exception has occurred.
c_call: A C function is about to be called.
c_return: A C function has returned.
c_exception: A C function has raised an exception.
For the Python events, specialized functions (see the dispatch_*()
methods) are called. For the C events, no action is taken.
The arg parameter depends on the previous event.
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zBdb.trace_dispatchc C s. | � |�s| �|�r(| �|� | jr(t�| jS )a Invoke user function and return trace function for line event.
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N) r" �f_backr, r1 �break_anywhere� stopframe�f_code�co_flags� GENERATOR_AND_COROUTINE_FLAGS� user_callr' r �r r/ r0 r r r
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�| j|krv| j dkrv| � dd� | jS )a Invoke user function and return trace function for return event.
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self.user_return(). Raise BdbQuit if self.quitting is set.
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S )a Invoke user function and return trace function for exception event.
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self.user_exception(). Raise BdbQuit if self.quitting is set.
Return self.trace_dispatch to continue tracing in this scope.
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zBdb.is_skipped_modulec C sN | j r | �|j�d��r dS || jkr@| jdkr4dS |j| jkS | jsJdS dS )z>Return True if frame is below the starting frame in the stack.r Fr T)r rF � f_globalsr r7 r? �f_linenor4 r r r
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t |j�� dS dS dS )z�Return True if there is an effective breakpoint for this line.
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zBdb.break_herec C s t d��dS )zlRemove temporary breakpoint.
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rN � s z Bdb.do_clearc C s | � |jj�| jkS )zEReturn True if there is any breakpoint for frame's filename.
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r6 � s zBdb.break_anywherec C s dS )z&Called if we might stop in a function.Nr )r r/ Z
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Bdb.user_linec C s dS )z&Called when a return trap is set here.Nr )r r/ Z return_valuer r r
r> s zBdb.user_returnc C s dS )z$Called when we stop on an exception.Nr )r r/ �exc_infor r r
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s zBdb.user_exceptionr c C s || _ || _d| _|| _dS )z�Set the attributes for stopping.
If stoplineno is greater than or equal to 0, then stop at line
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r# s zBdb._set_stopinfoc C s$ |dkr|j d }| �|||� dS )zxStop when the line with the lineno greater than the current one is
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�set_step* s
z Bdb.set_stepc C s | � |d� dS )z2Stop on the next line in or below the given frame.N)r# r4 r r r
�set_next6 s z Bdb.set_nextc C s. |j jt@ r | �|dd� n| �|j|� dS )z)Stop when returning from the given frame.Nr )r8 r9 r: r# r5 r4 r r r
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set_return: s zBdb.set_returnc C sL |dkrt �� j}| �� |r4| j|_|| _|j}q| �� t �| j� dS )znStart debugging from frame.
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Bdb.set_tracec C sH | � | jdd� | jsDt�d� t�� j}|rD|| jk rD|`|j}q*dS )z�Stop only at breakpoints or when finished.
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zBdb.set_continuec C s" | j | _d| _d| _t�d� dS )zuSet quitting attribute to True.
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C sb | � |�}ddl}|�||�}|s.d||f S | j�|g �}||krN|�|� t|||||�} dS )z�Set a new breakpoint for filename:lineno.
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Bdb.set_breakc C s4 ||ft jkr | j| �|� | j| s0| j|= dS )a Prune breakpoints for filename:lineno.
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N)r �bplistr �remove�r r rP r r r
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zBdb._prune_breaksc C sj | � |�}|| jkr d| S || j| kr6d||f S tj||f dd� D ] }|�� qL| �||� dS )znDelete breakpoints for filename:lineno.
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�clear_bpbynumber� s zBdb.clear_bpbynumberc C sX | � |�}|| jkr d| S | j| D ]$}tj||f }|D ] }|�� q<q&| j|= dS )z`Delete all breakpoints in filename.
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�clear_all_file_breaks� s
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rl t d| �d�Y nX |dkr�t d| ��|S )z�Return a breakpoint by its index in Breakpoint.bybpnumber.
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ro � s zBdb.get_bpbynumberc C s" | � |�}|| jko || j| kS )z9Return True if there is a breakpoint for filename:lineno.�r r rj r r r
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� ��zBdb.get_breaksc C s& | � |�}|| jkr | j| S g S dS )zrReturn all lines with breakpoints for filename.
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zBdb.get_file_breaksc C s | j S )z$Return all breakpoints that are set.)r r_ r r r
�get_all_breaks� s zBdb.get_all_breaksc C s� g }|r|j |kr|j}|dk rD|�||jf� || jkr<qD|j}q|�� tdt|�d �}|dk r�|�|j |j f� |j}q^|dkr�tdt|�d �}||fS )z�Return a list of (frame, lineno) in a stack trace and a size.
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� 7 }|S )a: Return a string with information about a stack entry.
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or '<lambda>', the input arguments, the return value, and the
line of code (if it exists).
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zBdb.format_stack_entryc C s� |dkrddl }|j}|dkr"|}| �� t|t�r@t|dd�}t�| j� z*zt
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rr Y nX W 5 d| _ t�d� X dS )z�Debug a statement executed via the exec() function.
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Nr T) r� r� r$ rZ r\ r, r' �evalr )r �exprr� r� r� r r r
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t�d� X |S ) zWDebug a single function call.
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c C s t � �� dS )z<Start debugging with a Bdb instance from the caller's frame.N)r r] r r r r
r] � s r] c @ sZ e Zd ZdZdZi ZdgZddd�Zdd� Zd d
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dS )r a� Breakpoint class.
Implements temporary breakpoints, ignore counts, disabling and
(re)-enabling, and conditionals.
Breakpoints are indexed by number through bpbynumber and by
the (file, line) tuple using bplist. The former points to a
single instance of class Breakpoint. The latter points to a
list of such instances since there may be more than one
breakpoint per line.
When creating a breakpoint, its associated filename should be
in canonical form. If funcname is defined, a breakpoint hit will be
counted when the first line of that function is executed. A
conditional breakpoint always counts a hit.
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r � s zBreakpoint.__init__c C s> | j | jf}d| j| j< | j| �| � | j| s:| j|= dS )z�Delete the breakpoint from the list associated to a file:line.
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�disable� s zBreakpoint.disablec C s" |dkrt j}t| �� |d� dS )z�Print the output of bpformat().
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�bpprint� s zBreakpoint.bpprintc C s� | j r d}nd}| jr |d }n|d }d| j|| j| jf }| jrT|d| jf 7 }| jrj|d| jf 7 }| jr�| jdkr�d }nd
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c C sN | j s| j|jkrdS dS |jj| j kr,dS | js:|j| _| j|jkrJdS dS )aV Return True if break should happen here.
Whether a break should happen depends on the way that b (the breakpoint)
was set. If it was set via line number, check if b.line is the same as
the one in the frame. If it was set via function name, check if this is
the right function and if it is on the first executable line.
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checkfuncname s r� c C s� t j| |f }|D ]�}|js qt||�s*q| jd7 _|jsh|jdkrZ| jd8 _qq�|df S qzBt|j|j|j �}|r�|jdkr�| jd8 _n|dfW S W q |df Y S X qdS )aE Determine which breakpoint for this file:line is to be acted upon.
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the breakpoint that was triggered and a boolean that indicates if it is
ok to delete a temporary breakpoint. Return (None, None) if there is no
matching breakpoint.
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