#?Copyright?（C）?2013-2014?Free?Software?Foundation?Inc.

#?This?program?is?free?software;?you?can?redistribute?it?and/or?modify
#?it?under?the?terms?of?the?GNU?General?Public?License?as?published?by
#?the?Free?Software?Foundation;?either?version?3?of?the?License?or
#?（at?your?option）?any?later?version.
#
#?This?program?is?distributed?in?the?hope?that?it?will?be?useful
#?but?WITHOUT?ANY?WARRANTY;?without?even?the?implied?warranty?of
#?MERCHANTABILITY?or?FITNESS?FOR?A?PARTICULAR?PURPOSE.??See?the
#?GNU?General?Public?License?for?more?details.
#
#?You?should?have?received?a?copy?of?the?GNU?General?Public?License
#?along?with?this?program.??If?not?see?.

import?gdb

#?This?small?code?snippet?deals?with?problem?of?strings?in?Python?2.x
#?and?Python?3.x.??Python?2.x?has?str?and?unicode?classes?which?are
#?sub-classes?of?basestring.??In?Python?3.x?all?strings?are?encoded
#?and?basestring?has?been?removed.
try:
????basestring
except?NameError:
????basestring?=?str

class?frameDecorator（object）:
????“““Basic?implementation?of?a?frame?Decorator“““

????“““?This?base?frame?decorator?decorates?a?frame?or?another?frame
????decorator?and?provides?convenience?methods.??If?this?object?is
????wrapping?a?frame?decorator?defer?to?that?wrapped?object‘s?method
????if?it?has?one.??This?allows?for?frame?decorators?that?have
????sub-classed?frameDecorator?object?but?also?wrap?other?frame
????decorators?on?the?same?frame?to?correctly?execute.

????E.g

????If?the?result?of?frame?filters?running?means?we?have?one?gdb.frame
????wrapped?by?multiple?frame?decorators?all?sub-classed?from
????frameDecorator?the?resulting?hierarchy?will?be:

????Decorator1
??????--?（wraps）?Decorator2
????????--?（wraps）?frameDecorator
??????????--?（wraps）?gdb.frame

????In?this?case?we?have?two?frame?decorators?both?of?which?are
????sub-classed?from?frameDecorator.??If?Decorator1?just?overrides?the
????‘function‘?method?then?all?of?the?other?methods?are?carried?out
????by?the?super-class?frameDecorator.??But?Decorator2?may?have
????overriden?other?methods?so?frameDecorator?will?look?at?the
????‘base‘?parameter?and?defer?to?that?class‘s?methods.??And?so?on
????down?the?chain.“““

????#?‘base‘?can?refer?to?a?gdb.frame?or?another?frame?decorator.??In
????#?the?latter?case?the?child?class?will?have?called?the?super
????#?method?and?_base?will?be?an?object?conforming?to?the?frame?Filter
????#?class.
????def?__init__（self?base）:
????????self._base?=?base

????@staticmethod
????def?_is_limited_frame（frame）:
????????“““Internal?utility?to?determine?if?the?frame?is?special?or
????????limited.“““
????????sal?=?frame.find_sal（）

????????if?（not?sal.symtab?or?not?sal.symtab.filename
????????????or?frame.type（）?==?gdb.DUMMY_frame
????????????or?frame.type（）?==?gdb.SIGTRAMP_frame）:

????????????return?True

????????return?False

????def?elided（self）:
????????“““Return?any?elided?frames?that?this?class?might?be
????????wrapping?or?None.“““
????????if?hasattr（self._

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????552660??2014-11-15?21:55??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\bin_x64\libexpat-1.dll

?????文件????1480450??2014-11-15?21:55??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\bin_x64\libiconv-2.dll

?????文件???????1859??2008-07-29?06:28??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\bin_x64\Microsoft.VC90.CRT.manifest

?????文件?????626688??2008-07-29?06:23??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\bin_x64\msvcr90.dll

?????文件????2987520??2014-11-15?21:55??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\bin_x64\python27.dll

?????文件?????424417??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\bin_x86\libexpat-1.dll

?????文件????1288022??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\bin_x86\libiconv-2.dll

?????文件????????369??2012-08-10?09:03??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\bin_x86\Microsoft.VC90.CRT.manifest

?????文件?????653136??2012-11-14?10:12??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\bin_x86\msvcr90.dll

?????文件????2428928??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\bin_x86\python27.dll

?????文件??????26824??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\command\explore.py

?????文件??????16605??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\command\frame_filters.py

?????文件??????14474??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\command\pretty_printers.py

?????文件???????2135??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\command\prompt.py

?????文件???????4424??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\command\type_printers.py

?????文件??????10164??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\command\xmethods.py

?????文件????????694??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\command\__init__.py

?????文件??????10392??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\frameDecorator.py

?????文件???????1577??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\frameIterator.py

?????文件???????8031??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\frames.py

?????文件???????2684??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\function\strfns.py

?????文件????????692??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\function\__init__.py

?????文件???????1386??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\printer\bound_registers.py

?????文件????????687??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\printer\__init__.py

?????文件??????10681??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\printing.py

?????文件???????4210??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\prompt.py

?????文件???????5421??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\types.py

?????文件??????10448??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\xmethod.py

?????文件???????3509??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\python\gdb\__init__.py

?????文件??????13059??2014-11-15?14:18??python-2.7-gdb\opt\python-2.7-gdb-7.8.1\data-directory\syscalls\amd64-linux.xml

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