o Rc7@sNdZddlmZdddZddZdd Zd d Zd d ZddZddZ dS)zhRoutines to handle adaption of legacy call signatures, generation of deprecation notes and docstrings. )utilNcsfdd}|S)Ncs&t|dsg|_|jf|S)N_legacy_signatures)hasattrrappend)fnargnames convertersince9D:\Flask\env\Lib\site-packages\sqlalchemy/event/legacy.pylegs z_legacy_signature..legr )r rr r r rr _legacy_signaturesrcsjD]b\ddkrdddndtt|jkret|juredjdjr5dnd f}d jj|frVrIJfd d }|Sfd d }|SqS)Nz**kwTFz def %s(%s%s), , **kwzThe argument signature for the "%s.%s" event listener has changed as of version %s, and conversion for the old argument signature will be removed in a future release. The new signature is "%s"cstjd|S)Nversion)rwarn_deprecated)args)convrr warning_txtr r wrap_leg;s z%_wrap_fn_for_legacy..wrap_legcsJtjdttj|fddD}r!|i|S|S)Nrcsg|]}|qSr r ).0nameZargdictr r Dsz9_wrap_fn_for_legacy..wrap_leg..)rrdictzip arg_names)rkw)rdispatch_collectionrhas_kwr rrr rAs ) legacy_signatureslenrboolvarkwrjoinr!clsname)r#rZargspecZ formatted_defrr )rrr#rr$r rr _wrap_fn_for_legacys:     r+csdfdd|dDS)N c3s|]}|VqdSNr )rlineindentr r Psz_indent..)r)split)textr0r r/r _indentOsr4cCstddd|jddDd}|jr tdd|jD}nd}d}||r+d |nd |j|jr3d nd d |j||d ;}|S)Nr,css|] }dd|iVqdS)z%(arg)s = kw['%(arg)s']argNr )rr5r r r r1Us  z+_standard_listen_example..rrz css|]\}}}|VqdSr-r )rr rrr r r r1\s  zfrom sqlalchemy import event @event.listens_for(%(sample_target)s, '%(event_name)s') def receive_%(event_name)s(%(named_event_arguments)s%(has_kw_arguments)s): "listen for the '%(event_name)s' event" # ... (event handling logic) ... z (arguments as of %s)rrr) current_since event_namehas_kw_argumentsnamed_event_argumentsexample_kw_arg sample_target)r4r)r!r%max__name__r$)r#r;rr:r6r3r r r _standard_listen_exampleSs0        r>c CsDd}|jD]\}}}|d||j|jrdndd||d7}q|S)Nra& # DEPRECATED calling style (pre-%(since)s, will be removed in a future release) @event.listens_for(%(sample_target)s, '%(event_name)s') def receive_%(event_name)s(%(named_event_arguments)s%(has_kw_arguments)s): "listen for the '%(event_name)s' event" # ... (event handling logic) ... z **kwr)r r7r8r9r;)r%r=r$r))r#r;rr3r rrr r r _legacy_listen_examplesxsr?cCs@|jd\}}}d||j|jd|j|jrddSddS)Nra> .. deprecated:: %(since)s The :class:`.%(clsname)s.%(event_name)s` event now accepts the arguments ``%(named_event_arguments)s%(has_kw_arguments)s``. Support for listener functions which accept the previous argument signature(s) listed above as "deprecated" will be removed in a future release.rrr)r r*r7r9r8)r%r=rr)r!r$)parent_dispatch_clsr#r rrr r r _version_signature_changess  rAcCs`d}t|dd}|tt|||d}|jr(|tt|||d7}|t||7}t|j|dS)Nz@.. container:: event_signatures Example argument forms:: Z_target_class_docobjz ) getattrr4r>r%r?rArZinject_docstring_text__doc__)r#r@rheaderr;r3r r r _augment_fn_docss    rGr-) rErrrr+r4r>r?rArGr r r r s   5%