U
if8} @ s d Z ddlZddlZddlZddlmZmZmZ dddgZeeB eB Z G dd de
Z G dd dZ d d
Z
G d d dZd d
Zdd ZG dd de Zdd Zdd Zdd ZdS )zDebugger basics N) CO_GENERATOR CO_COROUTINECO_ASYNC_GENERATORBdbQuitBdb
Breakpointc @ s e Zd ZdZdS )r z Exception to give up completely.N)__name__
__module__ __qualname____doc__ r r (/opt/alt/python38/lib64/python3.8/bdb.pyr
s c @ sv e Zd ZdZd[ddZdd Zdd Zd d
Zd d Zd
d Z dd Z
dd Z dd Z dd Z
dd Zdd Zdd Zd d Zd d Zd!d" Zd#d$ Zd\d&d'Zd]d(d)Zd*d+ Zd,d- Zd.d/ Zd^d0d1Zd2d3 Zd4d5 Z d_d7d8Z 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`dPdQZ)dadRdSZ*dbdTdUZ+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)setskipbreaksfncacheframe_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 "", generated in interactive
mode, are returned unchanged.
< >)r getospathabspathnormcase)r filenamecanonicr r r
r % s
z Bdb.canonicc C s& ddl }| d| _| dd dS )z5Set values of attributes as ready to start debugging.r N) linecache
checkcachebotframe
_set_stopinfo)r r r r r
reset6 s z Bdb.resetc C s | j r
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.
NlineZcallreturnZ exceptionZc_callZ c_exceptionZc_returnz*bdb.Bdb.dispatch: unknown debugging event:)quitting
dispatch_line
dispatch_calldispatch_returndispatch_exceptiontrace_dispatchprintrepr)r frameZeventargr r r
r, = s$
zBdb.trace_dispatchc C s. | |s| |r(| | | jr(t| jS )a Invoke user function and return trace function for line event.
If the debugger stops on the current line, invoke
self.user_line(). Raise BdbQuit if self.quitting is set.
Return self.trace_dispatch to continue tracing in this scope.
) stop_here
break_here user_liner' r r, r r/ r r r
r( h s
zBdb.dispatch_linec C sd | j dkr|j| _ | jS | |s0| |s0dS | jrH|jjt@ rH| jS | || | j
r^t | jS )a Invoke user function and return trace function for call event.
If the debugger stops on this function call, invoke
self.user_call(). Raise BbdQuit if self.quitting is set.
Return self.trace_dispatch to continue tracing in this scope.
N) r" f_backr, r1 break_anywhere stopframef_codeco_flags GENERATOR_AND_COROUTINE_FLAGS user_callr' r r r/ r0 r r r
r) t s
zBdb.dispatch_callc C s| | |s|| jkrv| jr,|jjt@ r,| jS z|| _| || W 5 d| _X | j rVt
| j|krv| j dkrv| dd | jS )a Invoke user function and return trace function for return event.
If the debugger stops on this function return, invoke
self.user_return(). Raise BdbQuit if self.quitting is set.
Return self.trace_dispatch to continue tracing in this scope.
Nr )
r1 returnframer7 r8 r9 r: r, r user_returnr' r
stoplinenor# r< r r r
r* s zBdb.dispatch_returnc C s | |rF|jjt@ r.|d tkr.|d dks| || | jrtnD| jr|| jk r| jjjt@ r|d tt fkr| || | jrt| j
S )a Invoke user function and return trace function for exception event.
If the debugger stops on this exception, invoke
self.user_exception(). Raise BdbQuit if self.quitting is set.
Return self.trace_dispatch to continue tracing in this scope.
r N) r1 r8 r9 r:
StopIterationuser_exceptionr' r r7
GeneratorExitr, r< r r r
r+ s$
zBdb.dispatch_exceptionc C s. |dkr dS | j D ]}t||r dS qdS )z4Return True if module_name matches any skip pattern.NFT)r fnmatch)r Z module_namepatternr r r
is_skipped_module s
zBdb.is_skipped_modulec C sN | j r | |jdr 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
r1 s
z
Bdb.stop_herec C s | |jj}|| jkr dS |j}|| j| krJ|jj}|| j| krJdS t|||\}}|r|j| _|r|j r|
t |j dS dS dS )zReturn True if there is an effective breakpoint for this line.
Check for line or function breakpoint and if in effect.
Delete temporary breakpoints if effective() says to.
FTN) r r8 co_filenamer rH co_firstlineno effectivenumberZ currentbp temporarydo_clearstr)r r/ r linenobpflagr r r
r2 s
zBdb.break_herec C s t ddS )zlRemove temporary breakpoint.
Must implement in derived classes or get NotImplementedError.
z)subclass of bdb must implement do_clear()N)NotImplementedError)r r0 r r r
rN s z Bdb.do_clearc C s | |jj| jkS )zEReturn True if there is any breakpoint for frame's filename.
)r r8 rI r r4 r r r
r6 s zBdb.break_anywherec C s dS )z&Called if we might stop in a function.Nr )r r/ Z
argument_listr r r
r; s z
Bdb.user_callc C s dS )z'Called when we stop or break at a line.Nr r4 r r r
r3 s z
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$Called when we stop on an exception.Nr )r r/ exc_infor r r
rB
s zBdb.user_exceptionr c C s || _ || _d| _|| _dS )zSet the attributes for stopping.
If stoplineno is greater than or equal to 0, then stop at line
greater than or equal to the stopline. If stoplineno is -1, then
don't stop at all.
FN)r7 r= r' r? )r r7 r= r? r r r
r# s zBdb._set_stopinfoc C s$ |dkr|j d }| ||| dS )zxStop when the line with the lineno greater than the current one is
reached or when returning from current frame.Nr )rH r# )r r/ rP r r r
set_until" s
z
Bdb.set_untilc C s0 | j r | j j}|r |js | j|_| dd dS )z Stop after one line of code.N)r r5 f_tracer, r# )r Z caller_framer r r
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
set_return: s zBdb.set_returnc C sL |dkrt j}| |r4| j|_|| _|j}q| t | j dS )znStart debugging from frame.
If frame is not specified, debugging starts from caller's frame.
N) sys _getframer5 r$ r, rV r" rW settracer4 r r r
set_traceA s
z
Bdb.set_tracec C sH | | jdd | jsDtd t j}|rD|| jk rD|`|j}q*dS )zStop only at breakpoints or when finished.
If there are no breakpoints, set the system trace function to None.
Nr )r# r" r rZ r\ r[ r5 rV r4 r r r
set_continueP s
zBdb.set_continuec C s" | j | _d| _d| _td dS )zuSet quitting attribute to True.
Raises BdbQuit exception in the next call to a dispatch_*() method.
NT)r" r7 r= r' rZ r\ r r r r
set_quit_ s z Bdb.set_quitFc
C sb | |}ddl}|||}|s.d||f S | j|g }||krN|| t|||||} dS )zSet a new breakpoint for filename:lineno.
If lineno doesn't exist for the filename, return an error message.
The filename should be in canonical form.
r NzLine %s:%d does not exist)r r getliner
setdefaultappendr )
r r rP rM condfuncnamer r% listrQ r r r
set_breakp s
z
Bdb.set_breakc C s4 ||ft jkr | j| | | j| s0| j|= dS )a Prune breakpoints for filename:lineno.
A list of breakpoints is maintained in the Bdb instance and in
the Breakpoint class. If a breakpoint in the Bdb instance no
longer exists in the Breakpoint class, then it's removed from the
Bdb instance.
N)r bplistr remover r rP r r r
_prune_breaks s
zBdb._prune_breaksc C sj | |}|| jkr d| S || j| kr6d||f S tj||f dd D ] }| qL| || dS )znDelete breakpoints for filename:lineno.
If no breakpoints were set, return an error message.
There are no breakpoints in %sz There is no breakpoint at %s:%dN)r r r rh deleteMerk )r r rP rQ r r r
clear_break s
zBdb.clear_breakc
C sZ z| |}W n. tk
r< } zt| W Y S d}~X Y nX | | |j|j dS )zxDelete a breakpoint by its index in Breakpoint.bpbynumber.
If arg is invalid, return an error message.
N)get_bpbynumber
ValueErrorrO rm rk filer% )r r0 rQ errr r r
clear_bpbynumber s zBdb.clear_bpbynumberc C sX | |}|| jkr d| S | j| D ]$}tj||f }|D ] }| q', the input arguments, the return value, and the
line of code (if it exists).
r Nz%s(%r)zz()Z
__return__z->) r reprlibr r8 rI co_namef_localsr. ra rG strip) r Z frame_linenoZlprefixr r r/ rP r srvr% r r r
format_stack_entry s
zBdb.format_stack_entryc C s |dkrddl }|j}|dkr"|}| t|tr@t|dd}t| j z*zt
||| W n t k
rr Y nX W 5 d| _ td X dS )zDebug a statement executed via the exec() function.
globals defaults to __main__.dict; locals defaults to globals.
Nr zexecT) __main____dict__r$
isinstancerO compilerZ r\ r, r' r r )r cmdglobalslocalsr r r r
run5 s
zBdb.runc C sz |dkrddl }|j}|dkr"|}| t| j z,zt|||W W S tk
r^ Y nX W 5 d| _td X dS )zDebug an expression executed via the eval() function.
globals defaults to __main__.dict; locals defaults to globals.
Nr T) r r r$ rZ r\ r, r' evalr )r exprr r r r r r
runevalK s
z Bdb.runevalc C s | ||| dS )z.For backwards-compatibility. Defers to run().N)r )r r r r r r r
runctx_ s z
Bdb.runctxc O s t | dkr| ^}}} nV| s&tdnHd|krZ|d}| ^}} ddl}|jdtdd ntdt | d | t|j d}z(z|| |}W n t k
r Y nX W 5 d
|_
td X |S ) zWDebug a single function call.
Return the result of the function call.
r@ z6descriptor 'runcall' of 'Bdb' object needs an argumentfuncr Nz0Passing 'func' as keyword argument is deprecated)
stacklevelz7runcall expected at least 1 positional argument, got %dr T) r TypeErrorpopwarningswarnDeprecationWarningr$ rZ r\ r, r' r )argskwdsr r r resr r r
runcallf s2
z Bdb.runcallz ($self, func, /, *args, **kwds))N)r )N)N)FNN)r )NN)NN)/r r r
r r r r$ r, r( r) r* r+ rF r1 r2 rN r6 r; r3 r> rB r# rU rW rX rY r] r^ r` rg rk rn rs rt rv ro rz r{ r| r} r r r r r r __text_signature__r r r r
r s\
+
c C s t dS )z | j | jf}d| j| j< | j| | | j| s:| j|= dS )zDelete the breakpoint from the list associated to a file:line.
If it is the last breakpoint in that position, it also deletes
the entry for the file:line.
N)rq r% ru rL rh ri )r indexr r r
rm s
zBreakpoint.deleteMec C s
d| _ dS )z Mark the breakpoint as enabled.TNr r_ r r r
enable s zBreakpoint.enablec C s
d| _ dS )z Mark the breakpoint as disabled.FNr r_ r r r
disable s zBreakpoint.disablec C s" |dkrt j}t| |d dS )zPrint the output of bpformat().
The optional out argument directs where the output is sent
and defaults to standard output.
N)rq )rZ stdoutr- bpformat)r outr r r
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| jdkrd }nd
}|d | j|f 7 }|S ) zReturn a string with information about the breakpoint.
The information includes the breakpoint number, temporary
status, file:line position, break condition, number of times to
ignore, and number of times hit.
zdel zkeep zyes zno z %-4dbreakpoint %s at %s:%dz
stop only if %sz
ignore next %d hitsr r z"
breakpoint already hit %d time%s)rM r rL rq r% rd r r )r ZdispZretZssr r r
r s(
zBreakpoint.bpformatc C s d| j | j| jf S )z1Return a condensed description of the breakpoint.zbreakpoint %s at %s:%s)rL rq r% r_ r r r
__str__ s zBreakpoint.__str__)FNN)N)r r r
r r rh ru r rm r r r r r r r r r
r s
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.
FT)re r% rH r8 r r )br/ r r r
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.
Called only if we know there is a breakpoint at this location. Return
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.
r r TF)NN)
r rh r r r rd r r rG r )rq r% r/ Z possiblesr valr r r
rK # s*
rK c @ s, e Zd Zdd Zdd Zdd Zdd Zd S )
Tdbc C s |j j}|sd}td|| d S )N???z+++ call)r8 r r- )r r/ r namer r r
r; T s z
Tdb.user_callc C sT dd l }|jj}|sd}| |jj}|||j|j}td||j|d| d S )Nr r z+++:)
r r8 r r rI ra rH rG r- r )r r/ r r fnr% r r r
r3 X s z
Tdb.user_linec C s t d| d S )Nz
+++ returnr- )r r/ Zretvalr r r
r> _ s zTdb.user_returnc C s t d| | d S )Nz
+++ exception)r- r^ )r r/ Z exc_stuffr r r
rB a s
zTdb.user_exceptionN)r r r
r; r3 r> rB r r r r
r S s r c C s& t d| d t| d }t d| d S )Nzfoo()
z bar returned)r- bar)nxr r r
fooe s r c C s t d| d | d S )Nzbar(r r@ r )ar r r
r j s r c C s t } | d d S )Nzimport bdb; bdb.foo(10))r r )r r r r
testn s r )r rD rZ r inspectr r r __all__r: Exceptionr r r] r r rK r r r r r r r r
s(
{t"0