Mercurial > public > dotfiles
changeset 8:097c95760fd0
Added pyflakes-vim plugin support.
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vim/vimfiles/bundle/pyflakes-vim/README.rst Sun Apr 29 16:30:44 2012 -0500 @@ -0,0 +1,82 @@ +pyflakes-vim +============ + +A Vim plugin for checking Python code on the fly. + +PyFlakes catches common Python errors like mistyping a variable name or +accessing a local before it is bound, and also gives warnings for things like +unused imports. + +pyflakes-vim uses the output from PyFlakes to highlight errors in your code. +To locate errors quickly, use quickfix_ commands like :cc. + +Make sure to check vim.org_ for the latest updates. + +.. _pyflakes.vim: http://www.vim.org/scripts/script.php?script_id=2441 +.. _vim.org: http://www.vim.org/scripts/script.php?script_id=2441 +.. _quickfix: http://vimdoc.sourceforge.net/htmldoc/quickfix.html#quickfix + +Quick Installation +------------------ + +1. Make sure your ``.vimrc`` has:: + + filetype on " enables filetype detection + filetype plugin on " enables filetype specific plugins + +2. Download the latest release_. + +3. If you're using pathogen_, unzip the contents of ``pyflakes-vim.zip`` into + its own bundle directory, i.e. into ``~/.vim/bundle/pyflakes-vim/``. + + Otherwise unzip ``pyflakes.vim`` and the ``pyflakes`` directory into + ``~/.vim/ftplugin/python`` (or somewhere similar on your + `runtime path`_ that will be sourced for Python files). + +.. _release: http://www.vim.org/scripts/script.php?script_id=2441 +.. _pathogen: http://www.vim.org/scripts/script.php?script_id=2332 +.. _runtime path: http://vimdoc.sourceforge.net/htmldoc/options.html#'runtimepath' + +Running from source +------------------- + +If you're running pyflakes-vim "from source," you'll need the PyFlakes library +on your PYTHONPATH somewhere. (It is included in the vim.org zipfile.) I recommend +getting my PyFlakes_ fork, which retains column number information, giving more +specific error locations. + +.. _vim.org: http://www.vim.org/scripts/script.php?script_id=2441 +.. _PyFlakes: http://github.com/kevinw/pyflakes + +Hacking +------- + +:: + + git clone git://github.com/kevinw/pyflakes-vim.git + cd pyflakes-vim + git clone git://github.com/kevinw/pyflakes.git + +Options +------- + +Set this option to you vimrc file to disable quickfix support:: + + let g:pyflakes_use_quickfix = 0 + +The value is set to 1 by default. + +TODO +---- + * signs_ support (show warning and error icons to left of the buffer area) + * configuration variables + * parse or intercept useful output from the warnings module + +.. _signs: http://www.vim.org/htmldoc/sign.html + +Changelog +--------- + +Please see http://www.vim.org/scripts/script.php?script_id=2441 for a history of +all changes. +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes.vim Sun Apr 29 16:30:44 2012 -0500 @@ -0,0 +1,321 @@ +" pyflakes.vim - A script to highlight Python code on the fly with warnings +" from Pyflakes, a Python lint tool. +" +" Place this script and the accompanying pyflakes directory in +" .vim/ftplugin/python. +" +" See README for additional installation and information. +" +" Thanks to matlib.vim for ideas/code on interactive linting. +" +" Maintainer: Kevin Watters <kevin.watters@gmail.com> +" Version: 0.1 + +if exists("b:did_pyflakes_plugin") + finish " only load once +else + let b:did_pyflakes_plugin = 1 +endif + +if !exists('g:pyflakes_builtins') + let g:pyflakes_builtins = [] +endif + +if !exists("b:did_python_init") + let b:did_python_init = 0 + + if !has('python') + echoerr "Error: the pyflakes.vim plugin requires Vim to be compiled with +python" + finish + endif + +if !exists('g:pyflakes_use_quickfix') + let g:pyflakes_use_quickfix = 1 +endif + + + python << EOF +import vim +import os.path +import sys + +if sys.version_info[:2] < (2, 5): + raise AssertionError('Vim must be compiled with Python 2.5 or higher; you have ' + sys.version) + +# get the directory this script is in: the pyflakes python module should be installed there. +scriptdir = os.path.join(os.path.dirname(vim.eval('expand("<sfile>")')), 'pyflakes') +sys.path.insert(0, scriptdir) + +import ast +from pyflakes import checker, messages +from operator import attrgetter +import re + +class loc(object): + def __init__(self, lineno, col=None): + self.lineno = lineno + self.col_offset = col + +class SyntaxError(messages.Message): + message = 'could not compile: %s' + def __init__(self, filename, lineno, col, message): + messages.Message.__init__(self, filename, loc(lineno, col)) + self.message_args = (message,) + +class blackhole(object): + write = flush = lambda *a, **k: None + +def check(buffer): + filename = buffer.name + contents = buffer[:] + + # shebang usually found at the top of the file, followed by source code encoding marker. + # assume everything else that follows is encoded in the encoding. + encoding_found = False + for n, line in enumerate(contents): + if n >= 2: + break + elif re.match(r'#.*coding[:=]\s*([-\w.]+)', line): + contents = ['']*(n+1) + contents[n+1:] + break + + contents = '\n'.join(contents) + '\n' + + vimenc = vim.eval('&encoding') + if vimenc: + contents = contents.decode(vimenc) + + builtins = set(['__file__']) + try: + builtins.update(set(eval(vim.eval('string(g:pyflakes_builtins)')))) + except Exception: + pass + + try: + # TODO: use warnings filters instead of ignoring stderr + old_stderr, sys.stderr = sys.stderr, blackhole() + try: + tree = ast.parse(contents, filename or '<unknown>') + finally: + sys.stderr = old_stderr + except: + try: + value = sys.exc_info()[1] + lineno, offset, line = value[1][1:] + except IndexError: + lineno, offset, line = 1, 0, '' + if line and line.endswith("\n"): + line = line[:-1] + + return [SyntaxError(filename, lineno, offset, str(value))] + else: + # pyflakes looks to _MAGIC_GLOBALS in checker.py to see which + # UndefinedNames to ignore + old_globals = getattr(checker,' _MAGIC_GLOBALS', []) + checker._MAGIC_GLOBALS = set(old_globals) | builtins + + w = checker.Checker(tree, filename) + + checker._MAGIC_GLOBALS = old_globals + + w.messages.sort(key = attrgetter('lineno')) + return w.messages + + +def vim_quote(s): + return s.replace("'", "''") +EOF + let b:did_python_init = 1 +endif + +if !b:did_python_init + finish +endif + +au BufLeave <buffer> call s:ClearPyflakes() + +au BufEnter <buffer> call s:RunPyflakes() +au InsertLeave <buffer> call s:RunPyflakes() +au InsertEnter <buffer> call s:RunPyflakes() +au BufWritePost <buffer> call s:RunPyflakes() + +au CursorHold <buffer> call s:RunPyflakes() +au CursorHoldI <buffer> call s:RunPyflakes() + +au CursorHold <buffer> call s:GetPyflakesMessage() +au CursorMoved <buffer> call s:GetPyflakesMessage() + +if !exists("*s:PyflakesUpdate") + function s:PyflakesUpdate() + silent call s:RunPyflakes() + call s:GetPyflakesMessage() + endfunction +endif + +" Call this function in your .vimrc to update PyFlakes +if !exists(":PyflakesUpdate") + command PyflakesUpdate :call s:PyflakesUpdate() +endif + +" Hook common text manipulation commands to update PyFlakes +" TODO: is there a more general "text op" autocommand we could register +" for here? +noremap <buffer><silent> dd dd:PyflakesUpdate<CR> +noremap <buffer><silent> dw dw:PyflakesUpdate<CR> +noremap <buffer><silent> u u:PyflakesUpdate<CR> +noremap <buffer><silent> <C-R> <C-R>:PyflakesUpdate<CR> + +" WideMsg() prints [long] message up to (&columns-1) length +" guaranteed without "Press Enter" prompt. +if !exists("*s:WideMsg") + function s:WideMsg(msg) + let x=&ruler | let y=&showcmd + set noruler noshowcmd + redraw + echo strpart(a:msg, 0, &columns-1) + let &ruler=x | let &showcmd=y + endfun +endif + +if !exists("*s:GetQuickFixStackCount") + function s:GetQuickFixStackCount() + let l:stack_count = 0 + try + silent colder 9 + catch /E380:/ + endtry + + try + for i in range(9) + silent cnewer + let l:stack_count = l:stack_count + 1 + endfor + catch /E381:/ + return l:stack_count + endtry + endfunction +endif + +if !exists("*s:ActivatePyflakesQuickFixWindow") + function s:ActivatePyflakesQuickFixWindow() + try + silent colder 9 " go to the bottom of quickfix stack + catch /E380:/ + endtry + + if s:pyflakes_qf > 0 + try + exe "silent cnewer " . s:pyflakes_qf + catch /E381:/ + echoerr "Could not activate Pyflakes Quickfix Window." + endtry + endif + endfunction +endif + +if !exists("*s:RunPyflakes") + function s:RunPyflakes() + highlight link PyFlakes SpellBad + + if exists("b:cleared") + if b:cleared == 0 + silent call s:ClearPyflakes() + let b:cleared = 1 + endif + else + let b:cleared = 1 + endif + + let b:matched = [] + let b:matchedlines = {} + + let b:qf_list = [] + let b:qf_window_count = -1 + + python << EOF +for w in check(vim.current.buffer): + vim.command('let s:matchDict = {}') + vim.command("let s:matchDict['lineNum'] = " + str(w.lineno)) + vim.command("let s:matchDict['message'] = '%s'" % vim_quote(w.message % w.message_args)) + vim.command("let b:matchedlines[" + str(w.lineno) + "] = s:matchDict") + + vim.command("let l:qf_item = {}") + vim.command("let l:qf_item.bufnr = bufnr('%')") + vim.command("let l:qf_item.filename = expand('%')") + vim.command("let l:qf_item.lnum = %s" % str(w.lineno)) + vim.command("let l:qf_item.text = '%s'" % vim_quote(w.message % w.message_args)) + vim.command("let l:qf_item.type = 'E'") + + if getattr(w, 'col', None) is None or isinstance(w, SyntaxError): + # without column information, just highlight the whole line + # (minus the newline) + vim.command(r"let s:mID = matchadd('PyFlakes', '\%" + str(w.lineno) + r"l\n\@!')") + else: + # with a column number, highlight the first keyword there + vim.command(r"let s:mID = matchadd('PyFlakes', '^\%" + str(w.lineno) + r"l\_.\{-}\zs\k\+\k\@!\%>" + str(w.col) + r"c')") + + vim.command("let l:qf_item.vcol = 1") + vim.command("let l:qf_item.col = %s" % str(w.col + 1)) + + vim.command("call add(b:matched, s:matchDict)") + vim.command("call add(b:qf_list, l:qf_item)") +EOF + if g:pyflakes_use_quickfix == 1 + if exists("s:pyflakes_qf") + " if pyflakes quickfix window is already created, reuse it + call s:ActivatePyflakesQuickFixWindow() + call setqflist(b:qf_list, 'r') + else + " one pyflakes quickfix window for all buffer + call setqflist(b:qf_list, '') + let s:pyflakes_qf = s:GetQuickFixStackCount() + endif + endif + + let b:cleared = 0 + endfunction +end + +" keep track of whether or not we are showing a message +let b:showing_message = 0 + +if !exists("*s:GetPyflakesMessage") + function s:GetPyflakesMessage() + let s:cursorPos = getpos(".") + + " Bail if RunPyflakes hasn't been called yet. + if !exists('b:matchedlines') + return + endif + + " if there's a message for the line the cursor is currently on, echo + " it to the console + if has_key(b:matchedlines, s:cursorPos[1]) + let s:pyflakesMatch = get(b:matchedlines, s:cursorPos[1]) + call s:WideMsg(s:pyflakesMatch['message']) + let b:showing_message = 1 + return + endif + + " otherwise, if we're showing a message, clear it + if b:showing_message == 1 + echo + let b:showing_message = 0 + endif + endfunction +endif + +if !exists('*s:ClearPyflakes') + function s:ClearPyflakes() + let s:matches = getmatches() + for s:matchId in s:matches + if s:matchId['group'] == 'PyFlakes' + call matchdelete(s:matchId['id']) + endif + endfor + let b:matched = [] + let b:matchedlines = {} + let b:cleared = 1 + endfunction +endif +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/LICENSE Sun Apr 29 16:30:44 2012 -0500 @@ -0,0 +1,21 @@ + +Copyright (c) 2005 Divmod, Inc., http://www.divmod.com/ + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/NEWS.txt Sun Apr 29 16:30:44 2012 -0500 @@ -0,0 +1,29 @@ +0.4.0 (2009-11-25): + - Fix reporting for certain SyntaxErrors which lack line number + information. + - Check for syntax errors more rigorously. + - Support checking names used with the class decorator syntax in versions + of Python which have it. + - Detect local variables which are bound but never used. + - Handle permission errors when trying to read source files. + - Handle problems with the encoding of source files. + - Support importing dotted names so as not to incorrectly report them as + redefined unused names. + - Support all forms of the with statement. + - Consider static `__all__` definitions and avoid reporting unused names + if the names are listed there. + - Fix incorrect checking of class names with respect to the names of their + bases in the class statement. + - Support the `__path__` global in `__init__.py`. + +0.3.0 (2009-01-30): + - Display more informative SyntaxError messages. + - Don't hang flymake with unmatched triple quotes (only report a single + line of source for a multiline syntax error). + - Recognize __builtins__ as a defined name. + - Improve pyflakes support for python versions 2.3-2.5 + - Support for if-else expressions and with statements. + - Warn instead of error on non-existant file paths. + - Check for __future__ imports after other statements. + - Add reporting for some types of import shadowing. + - Improve reporting of unbound locals
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/bin/pyflakes Sun Apr 29 16:30:44 2012 -0500 @@ -0,0 +1,4 @@ +#!/usr/bin/python + +from pyflakes.scripts.pyflakes import main +main()
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/pyflakes/__init__.py Sun Apr 29 16:30:44 2012 -0500 @@ -0,0 +1,2 @@ + +__version__ = '0.4.0'
Binary file vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/pyflakes/__init__.pyc has changed
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/pyflakes/checker.py Sun Apr 29 16:30:44 2012 -0500 @@ -0,0 +1,625 @@ +# -*- test-case-name: pyflakes -*- +# (c) 2005-2010 Divmod, Inc. +# See LICENSE file for details + +import __builtin__ +import os.path +import _ast + +from pyflakes import messages + + +# utility function to iterate over an AST node's children, adapted +# from Python 2.6's standard ast module +try: + import ast + iter_child_nodes = ast.iter_child_nodes +except (ImportError, AttributeError): + def iter_child_nodes(node, astcls=_ast.AST): + """ + Yield all direct child nodes of *node*, that is, all fields that are nodes + and all items of fields that are lists of nodes. + """ + for name in node._fields: + field = getattr(node, name, None) + if isinstance(field, astcls): + yield field + elif isinstance(field, list): + for item in field: + yield item + + +class Binding(object): + """ + Represents the binding of a value to a name. + + The checker uses this to keep track of which names have been bound and + which names have not. See L{Assignment} for a special type of binding that + is checked with stricter rules. + + @ivar used: pair of (L{Scope}, line-number) indicating the scope and + line number that this binding was last used + """ + + def __init__(self, name, source): + self.name = name + self.source = source + self.used = False + + + def __str__(self): + return self.name + + + def __repr__(self): + return '<%s object %r from line %r at 0x%x>' % (self.__class__.__name__, + self.name, + self.source.lineno, + id(self)) + + + +class UnBinding(Binding): + '''Created by the 'del' operator.''' + + + +class Importation(Binding): + """ + A binding created by an import statement. + + @ivar fullName: The complete name given to the import statement, + possibly including multiple dotted components. + @type fullName: C{str} + """ + def __init__(self, name, source): + self.fullName = name + name = name.split('.')[0] + super(Importation, self).__init__(name, source) + + + +class Argument(Binding): + """ + Represents binding a name as an argument. + """ + + + +class Assignment(Binding): + """ + Represents binding a name with an explicit assignment. + + The checker will raise warnings for any Assignment that isn't used. Also, + the checker does not consider assignments in tuple/list unpacking to be + Assignments, rather it treats them as simple Bindings. + """ + + + +class FunctionDefinition(Binding): + pass + + + +class ExportBinding(Binding): + """ + A binding created by an C{__all__} assignment. If the names in the list + can be determined statically, they will be treated as names for export and + additional checking applied to them. + + The only C{__all__} assignment that can be recognized is one which takes + the value of a literal list containing literal strings. For example:: + + __all__ = ["foo", "bar"] + + Names which are imported and not otherwise used but appear in the value of + C{__all__} will not have an unused import warning reported for them. + """ + def names(self): + """ + Return a list of the names referenced by this binding. + """ + names = [] + if isinstance(self.source, _ast.List): + for node in self.source.elts: + if isinstance(node, _ast.Str): + names.append(node.s) + return names + + + +class Scope(dict): + importStarred = False # set to True when import * is found + + + def __repr__(self): + return '<%s at 0x%x %s>' % (self.__class__.__name__, id(self), dict.__repr__(self)) + + + def __init__(self): + super(Scope, self).__init__() + + + +class ClassScope(Scope): + pass + + + +class FunctionScope(Scope): + """ + I represent a name scope for a function. + + @ivar globals: Names declared 'global' in this function. + """ + def __init__(self): + super(FunctionScope, self).__init__() + self.globals = {} + + + +class ModuleScope(Scope): + pass + + +# Globally defined names which are not attributes of the __builtin__ module. +_MAGIC_GLOBALS = ['__file__', '__builtins__'] + + + +class Checker(object): + """ + I check the cleanliness and sanity of Python code. + + @ivar _deferredFunctions: Tracking list used by L{deferFunction}. Elements + of the list are two-tuples. The first element is the callable passed + to L{deferFunction}. The second element is a copy of the scope stack + at the time L{deferFunction} was called. + + @ivar _deferredAssignments: Similar to C{_deferredFunctions}, but for + callables which are deferred assignment checks. + """ + + nodeDepth = 0 + traceTree = False + + def __init__(self, tree, filename='(none)'): + self._deferredFunctions = [] + self._deferredAssignments = [] + self.dead_scopes = [] + self.messages = [] + self.filename = filename + self.scopeStack = [ModuleScope()] + self.futuresAllowed = True + self.handleChildren(tree) + self._runDeferred(self._deferredFunctions) + # Set _deferredFunctions to None so that deferFunction will fail + # noisily if called after we've run through the deferred functions. + self._deferredFunctions = None + self._runDeferred(self._deferredAssignments) + # Set _deferredAssignments to None so that deferAssignment will fail + # noisly if called after we've run through the deferred assignments. + self._deferredAssignments = None + del self.scopeStack[1:] + self.popScope() + self.check_dead_scopes() + + + def deferFunction(self, callable): + ''' + Schedule a function handler to be called just before completion. + + This is used for handling function bodies, which must be deferred + because code later in the file might modify the global scope. When + `callable` is called, the scope at the time this is called will be + restored, however it will contain any new bindings added to it. + ''' + self._deferredFunctions.append((callable, self.scopeStack[:])) + + + def deferAssignment(self, callable): + """ + Schedule an assignment handler to be called just after deferred + function handlers. + """ + self._deferredAssignments.append((callable, self.scopeStack[:])) + + + def _runDeferred(self, deferred): + """ + Run the callables in C{deferred} using their associated scope stack. + """ + for handler, scope in deferred: + self.scopeStack = scope + handler() + + + def scope(self): + return self.scopeStack[-1] + scope = property(scope) + + def popScope(self): + self.dead_scopes.append(self.scopeStack.pop()) + + + def check_dead_scopes(self): + """ + Look at scopes which have been fully examined and report names in them + which were imported but unused. + """ + for scope in self.dead_scopes: + export = isinstance(scope.get('__all__'), ExportBinding) + if export: + all = scope['__all__'].names() + if os.path.split(self.filename)[1] != '__init__.py': + # Look for possible mistakes in the export list + undefined = set(all) - set(scope) + for name in undefined: + self.report( + messages.UndefinedExport, + scope['__all__'].source, + name) + else: + all = [] + + # Look for imported names that aren't used. + for importation in scope.itervalues(): + if isinstance(importation, Importation): + if not importation.used and importation.name not in all: + self.report( + messages.UnusedImport, + importation.source, + importation.name) + + + def pushFunctionScope(self): + self.scopeStack.append(FunctionScope()) + + def pushClassScope(self): + self.scopeStack.append(ClassScope()) + + def report(self, messageClass, *args, **kwargs): + self.messages.append(messageClass(self.filename, *args, **kwargs)) + + def handleChildren(self, tree): + for node in iter_child_nodes(tree): + self.handleNode(node, tree) + + def isDocstring(self, node): + """ + Determine if the given node is a docstring, as long as it is at the + correct place in the node tree. + """ + return isinstance(node, _ast.Str) or \ + (isinstance(node, _ast.Expr) and + isinstance(node.value, _ast.Str)) + + def handleNode(self, node, parent): + node.parent = parent + if self.traceTree: + print ' ' * self.nodeDepth + node.__class__.__name__ + self.nodeDepth += 1 + if self.futuresAllowed and not \ + (isinstance(node, _ast.ImportFrom) or self.isDocstring(node)): + self.futuresAllowed = False + nodeType = node.__class__.__name__.upper() + try: + handler = getattr(self, nodeType) + handler(node) + finally: + self.nodeDepth -= 1 + if self.traceTree: + print ' ' * self.nodeDepth + 'end ' + node.__class__.__name__ + + def ignore(self, node): + pass + + # "stmt" type nodes + RETURN = DELETE = PRINT = WHILE = IF = WITH = RAISE = TRYEXCEPT = \ + TRYFINALLY = ASSERT = EXEC = EXPR = handleChildren + + CONTINUE = BREAK = PASS = ignore + + # "expr" type nodes + BOOLOP = BINOP = UNARYOP = IFEXP = DICT = SET = YIELD = COMPARE = \ + CALL = REPR = ATTRIBUTE = SUBSCRIPT = LIST = TUPLE = handleChildren + + NUM = STR = ELLIPSIS = ignore + + # "slice" type nodes + SLICE = EXTSLICE = INDEX = handleChildren + + # expression contexts are node instances too, though being constants + LOAD = STORE = DEL = AUGLOAD = AUGSTORE = PARAM = ignore + + # same for operators + AND = OR = ADD = SUB = MULT = DIV = MOD = POW = LSHIFT = RSHIFT = \ + BITOR = BITXOR = BITAND = FLOORDIV = INVERT = NOT = UADD = USUB = \ + EQ = NOTEQ = LT = LTE = GT = GTE = IS = ISNOT = IN = NOTIN = ignore + + # additional node types + COMPREHENSION = EXCEPTHANDLER = KEYWORD = handleChildren + + def addBinding(self, loc, value, reportRedef=True): + '''Called when a binding is altered. + + - `loc` is the location (an object with lineno and optionally + col_offset attributes) of the statement responsible for the change + - `value` is the optional new value, a Binding instance, associated + with the binding; if None, the binding is deleted if it exists. + - if `reportRedef` is True (default), rebinding while unused will be + reported. + ''' + if (isinstance(self.scope.get(value.name), FunctionDefinition) + and isinstance(value, FunctionDefinition)): + self.report(messages.RedefinedFunction, + loc, value.name, self.scope[value.name].source) + + if not isinstance(self.scope, ClassScope): + for scope in self.scopeStack[::-1]: + existing = scope.get(value.name) + if (isinstance(existing, Importation) + and not existing.used + and (not isinstance(value, Importation) or value.fullName == existing.fullName) + and reportRedef): + + self.report(messages.RedefinedWhileUnused, + loc, value.name, scope[value.name].source) + + if isinstance(value, UnBinding): + try: + del self.scope[value.name] + except KeyError: + self.report(messages.UndefinedName, loc, value.name) + else: + self.scope[value.name] = value + + def GLOBAL(self, node): + """ + Keep track of globals declarations. + """ + if isinstance(self.scope, FunctionScope): + self.scope.globals.update(dict.fromkeys(node.names)) + + def LISTCOMP(self, node): + # handle generators before element + for gen in node.generators: + self.handleNode(gen, node) + self.handleNode(node.elt, node) + + GENERATOREXP = SETCOMP = LISTCOMP + + # dictionary comprehensions; introduced in Python 2.7 + def DICTCOMP(self, node): + for gen in node.generators: + self.handleNode(gen, node) + self.handleNode(node.key, node) + self.handleNode(node.value, node) + + def FOR(self, node): + """ + Process bindings for loop variables. + """ + vars = [] + def collectLoopVars(n): + if isinstance(n, _ast.Name): + vars.append(n.id) + elif isinstance(n, _ast.expr_context): + return + else: + for c in iter_child_nodes(n): + collectLoopVars(c) + + collectLoopVars(node.target) + for varn in vars: + if (isinstance(self.scope.get(varn), Importation) + # unused ones will get an unused import warning + and self.scope[varn].used): + self.report(messages.ImportShadowedByLoopVar, + node, varn, self.scope[varn].source) + + self.handleChildren(node) + + def NAME(self, node): + """ + Handle occurrence of Name (which can be a load/store/delete access.) + """ + # Locate the name in locals / function / globals scopes. + if isinstance(node.ctx, (_ast.Load, _ast.AugLoad)): + # try local scope + importStarred = self.scope.importStarred + try: + self.scope[node.id].used = (self.scope, node) + except KeyError: + pass + else: + return + + # try enclosing function scopes + + for scope in self.scopeStack[-2:0:-1]: + importStarred = importStarred or scope.importStarred + if not isinstance(scope, FunctionScope): + continue + try: + scope[node.id].used = (self.scope, node) + except KeyError: + pass + else: + return + + # try global scope + + importStarred = importStarred or self.scopeStack[0].importStarred + try: + self.scopeStack[0][node.id].used = (self.scope, node) + except KeyError: + if ((not hasattr(__builtin__, node.id)) + and node.id not in _MAGIC_GLOBALS + and not importStarred): + if (os.path.basename(self.filename) == '__init__.py' and + node.id == '__path__'): + # the special name __path__ is valid only in packages + pass + else: + self.report(messages.UndefinedName, node, node.id) + elif isinstance(node.ctx, (_ast.Store, _ast.AugStore)): + # if the name hasn't already been defined in the current scope + if isinstance(self.scope, FunctionScope) and node.id not in self.scope: + # for each function or module scope above us + for scope in self.scopeStack[:-1]: + if not isinstance(scope, (FunctionScope, ModuleScope)): + continue + # if the name was defined in that scope, and the name has + # been accessed already in the current scope, and hasn't + # been declared global + if (node.id in scope + and scope[node.id].used + and scope[node.id].used[0] is self.scope + and node.id not in self.scope.globals): + # then it's probably a mistake + self.report(messages.UndefinedLocal, + scope[node.id].used[1], + node.id, + scope[node.id].source) + break + + if isinstance(node.parent, + (_ast.For, _ast.comprehension, _ast.Tuple, _ast.List)): + binding = Binding(node.id, node) + elif (node.id == '__all__' and + isinstance(self.scope, ModuleScope)): + binding = ExportBinding(node.id, node.parent.value) + else: + binding = Assignment(node.id, node) + if node.id in self.scope: + binding.used = self.scope[node.id].used + self.addBinding(node, binding) + elif isinstance(node.ctx, _ast.Del): + if isinstance(self.scope, FunctionScope) and \ + node.id in self.scope.globals: + del self.scope.globals[node.id] + else: + self.addBinding(node, UnBinding(node.id, node)) + else: + # must be a Param context -- this only happens for names in function + # arguments, but these aren't dispatched through here + raise RuntimeError( + "Got impossible expression context: %r" % (node.ctx,)) + + + def FUNCTIONDEF(self, node): + # the decorators attribute is called decorator_list as of Python 2.6 + if hasattr(node, 'decorators'): + for deco in node.decorators: + self.handleNode(deco, node) + else: + for deco in node.decorator_list: + self.handleNode(deco, node) + self.addBinding(node, FunctionDefinition(node.name, node)) + self.LAMBDA(node) + + def LAMBDA(self, node): + for default in node.args.defaults: + self.handleNode(default, node) + + def runFunction(): + args = [] + + def addArgs(arglist): + for arg in arglist: + if isinstance(arg, _ast.Tuple): + addArgs(arg.elts) + else: + if arg.id in args: + self.report(messages.DuplicateArgument, + node, arg.id) + args.append(arg.id) + + self.pushFunctionScope() + addArgs(node.args.args) + # vararg/kwarg identifiers are not Name nodes + if node.args.vararg: + args.append(node.args.vararg) + if node.args.kwarg: + args.append(node.args.kwarg) + for name in args: + self.addBinding(node, Argument(name, node), reportRedef=False) + if isinstance(node.body, list): + # case for FunctionDefs + for stmt in node.body: + self.handleNode(stmt, node) + else: + # case for Lambdas + self.handleNode(node.body, node) + def checkUnusedAssignments(): + """ + Check to see if any assignments have not been used. + """ + for name, binding in self.scope.iteritems(): + if (not binding.used and not name in self.scope.globals + and isinstance(binding, Assignment)): + self.report(messages.UnusedVariable, + binding.source, name) + self.deferAssignment(checkUnusedAssignments) + self.popScope() + + self.deferFunction(runFunction) + + + def CLASSDEF(self, node): + """ + Check names used in a class definition, including its decorators, base + classes, and the body of its definition. Additionally, add its name to + the current scope. + """ + # decorator_list is present as of Python 2.6 + for deco in getattr(node, 'decorator_list', []): + self.handleNode(deco, node) + for baseNode in node.bases: + self.handleNode(baseNode, node) + self.pushClassScope() + for stmt in node.body: + self.handleNode(stmt, node) + self.popScope() + self.addBinding(node, Binding(node.name, node)) + + def ASSIGN(self, node): + self.handleNode(node.value, node) + for target in node.targets: + self.handleNode(target, node) + + def AUGASSIGN(self, node): + # AugAssign is awkward: must set the context explicitly and visit twice, + # once with AugLoad context, once with AugStore context + node.target.ctx = _ast.AugLoad() + self.handleNode(node.target, node) + self.handleNode(node.value, node) + node.target.ctx = _ast.AugStore() + self.handleNode(node.target, node) + + def IMPORT(self, node): + for alias in node.names: + name = alias.asname or alias.name + importation = Importation(name, node) + self.addBinding(node, importation) + + def IMPORTFROM(self, node): + if node.module == '__future__': + if not self.futuresAllowed: + self.report(messages.LateFutureImport, node, + [n.name for n in node.names]) + else: + self.futuresAllowed = False + + for alias in node.names: + if alias.name == '*': + self.scope.importStarred = True + self.report(messages.ImportStarUsed, node, node.module) + continue + name = alias.asname or alias.name + importation = Importation(name, node) + if node.module == '__future__': + importation.used = (self.scope, node) + self.addBinding(node, importation)
Binary file vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/pyflakes/checker.pyc has changed
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/pyflakes/messages.py Sun Apr 29 16:30:44 2012 -0500 @@ -0,0 +1,96 @@ +# (c) 2005 Divmod, Inc. See LICENSE file for details + +class Message(object): + message = '' + message_args = () + def __init__(self, filename, loc, use_column=True): + self.filename = filename + self.lineno = loc.lineno + self.col = getattr(loc, 'col_offset', None) if use_column else None + + def __str__(self): + return '%s:%s: %s' % (self.filename, self.lineno, self.message % self.message_args) + + +class UnusedImport(Message): + message = '%r imported but unused' + def __init__(self, filename, loc, name): + Message.__init__(self, filename, loc, use_column=False) + self.message_args = (name,) + + +class RedefinedWhileUnused(Message): + message = 'redefinition of unused %r from line %r' + def __init__(self, filename, loc, name, orig_loc): + Message.__init__(self, filename, loc) + self.message_args = (name, orig_loc.lineno) + + +class ImportShadowedByLoopVar(Message): + message = 'import %r from line %r shadowed by loop variable' + def __init__(self, filename, loc, name, orig_loc): + Message.__init__(self, filename, loc) + self.message_args = (name, orig_loc.lineno) + + +class ImportStarUsed(Message): + message = "'from %s import *' used; unable to detect undefined names" + def __init__(self, filename, loc, modname): + Message.__init__(self, filename, loc) + self.message_args = (modname,) + + +class UndefinedName(Message): + message = 'undefined name %r' + def __init__(self, filename, loc, name): + Message.__init__(self, filename, loc) + self.message_args = (name,) + + + +class UndefinedExport(Message): + message = 'undefined name %r in __all__' + def __init__(self, filename, loc, name): + Message.__init__(self, filename, loc) + self.message_args = (name,) + + + +class UndefinedLocal(Message): + message = "local variable %r (defined in enclosing scope on line %r) referenced before assignment" + def __init__(self, filename, loc, name, orig_loc): + Message.__init__(self, filename, loc) + self.message_args = (name, orig_loc.lineno) + + +class DuplicateArgument(Message): + message = 'duplicate argument %r in function definition' + def __init__(self, filename, loc, name): + Message.__init__(self, filename, loc) + self.message_args = (name,) + + +class RedefinedFunction(Message): + message = 'redefinition of function %r from line %r' + def __init__(self, filename, loc, name, orig_loc): + Message.__init__(self, filename, loc) + self.message_args = (name, orig_loc.lineno) + + +class LateFutureImport(Message): + message = 'future import(s) %r after other statements' + def __init__(self, filename, loc, names): + Message.__init__(self, filename, loc) + self.message_args = (names,) + + +class UnusedVariable(Message): + """ + Indicates that a variable has been explicity assigned to but not actually + used. + """ + + message = 'local variable %r is assigned to but never used' + def __init__(self, filename, loc, names): + Message.__init__(self, filename, loc) + self.message_args = (names,)
Binary file vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/pyflakes/messages.pyc has changed
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/pyflakes/scripts/pyflakes.py Sun Apr 29 16:30:44 2012 -0500 @@ -0,0 +1,90 @@ + +""" +Implementation of the command-line I{pyflakes} tool. +""" + +import sys +import os +import _ast + +checker = __import__('pyflakes.checker').checker + +def check(codeString, filename): + """ + Check the Python source given by C{codeString} for flakes. + + @param codeString: The Python source to check. + @type codeString: C{str} + + @param filename: The name of the file the source came from, used to report + errors. + @type filename: C{str} + + @return: The number of warnings emitted. + @rtype: C{int} + """ + # First, compile into an AST and handle syntax errors. + try: + tree = compile(codeString, filename, "exec", _ast.PyCF_ONLY_AST) + except SyntaxError, value: + msg = value.args[0] + + (lineno, offset, text) = value.lineno, value.offset, value.text + + # If there's an encoding problem with the file, the text is None. + if text is None: + # Avoid using msg, since for the only known case, it contains a + # bogus message that claims the encoding the file declared was + # unknown. + print >> sys.stderr, "%s: problem decoding source" % (filename, ) + else: + line = text.splitlines()[-1] + + if offset is not None: + offset = offset - (len(text) - len(line)) + + print >> sys.stderr, '%s:%d: %s' % (filename, lineno, msg) + print >> sys.stderr, line + + if offset is not None: + print >> sys.stderr, " " * offset, "^" + + return 1 + else: + # Okay, it's syntactically valid. Now check it. + w = checker.Checker(tree, filename) + w.messages.sort(lambda a, b: cmp(a.lineno, b.lineno)) + for warning in w.messages: + print warning + return len(w.messages) + + +def checkPath(filename): + """ + Check the given path, printing out any warnings detected. + + @return: the number of warnings printed + """ + try: + return check(file(filename, 'U').read() + '\n', filename) + except IOError, msg: + print >> sys.stderr, "%s: %s" % (filename, msg.args[1]) + return 1 + + +def main(): + warnings = 0 + args = sys.argv[1:] + if args: + for arg in args: + if os.path.isdir(arg): + for dirpath, dirnames, filenames in os.walk(arg): + for filename in filenames: + if filename.endswith('.py'): + warnings += checkPath(os.path.join(dirpath, filename)) + else: + warnings += checkPath(arg) + else: + warnings += check(sys.stdin.read(), '<stdin>') + + raise SystemExit(warnings > 0)
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/pyflakes/test/harness.py Sun Apr 29 16:30:44 2012 -0500 @@ -0,0 +1,27 @@ + +import textwrap +import _ast + +from twisted.trial import unittest + +from pyflakes import checker + + +class Test(unittest.TestCase): + + def flakes(self, input, *expectedOutputs, **kw): + ast = compile(textwrap.dedent(input), "<test>", "exec", + _ast.PyCF_ONLY_AST) + w = checker.Checker(ast, **kw) + outputs = [type(o) for o in w.messages] + expectedOutputs = list(expectedOutputs) + outputs.sort() + expectedOutputs.sort() + self.assert_(outputs == expectedOutputs, '''\ +for input: +%s +expected outputs: +%s +but got: +%s''' % (input, repr(expectedOutputs), '\n'.join([str(o) for o in w.messages]))) + return w
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/pyflakes/test/test_imports.py Sun Apr 29 16:30:44 2012 -0500 @@ -0,0 +1,673 @@ + +from sys import version_info + +from pyflakes import messages as m +from pyflakes.test import harness + +class Test(harness.Test): + + def test_unusedImport(self): + self.flakes('import fu, bar', m.UnusedImport, m.UnusedImport) + self.flakes('from baz import fu, bar', m.UnusedImport, m.UnusedImport) + + def test_aliasedImport(self): + self.flakes('import fu as FU, bar as FU', m.RedefinedWhileUnused, m.UnusedImport) + self.flakes('from moo import fu as FU, bar as FU', m.RedefinedWhileUnused, m.UnusedImport) + + def test_usedImport(self): + self.flakes('import fu; print fu') + self.flakes('from baz import fu; print fu') + + def test_redefinedWhileUnused(self): + self.flakes('import fu; fu = 3', m.RedefinedWhileUnused) + self.flakes('import fu; del fu', m.RedefinedWhileUnused) + self.flakes('import fu; fu, bar = 3', m.RedefinedWhileUnused) + self.flakes('import fu; [fu, bar] = 3', m.RedefinedWhileUnused) + + def test_redefinedByFunction(self): + self.flakes(''' + import fu + def fu(): + pass + ''', m.RedefinedWhileUnused) + + def test_redefinedInNestedFunction(self): + """ + Test that shadowing a global name with a nested function definition + generates a warning. + """ + self.flakes(''' + import fu + def bar(): + def baz(): + def fu(): + pass + ''', m.RedefinedWhileUnused, m.UnusedImport) + + def test_redefinedByClass(self): + self.flakes(''' + import fu + class fu: + pass + ''', m.RedefinedWhileUnused) + + + def test_redefinedBySubclass(self): + """ + If an imported name is redefined by a class statement which also uses + that name in the bases list, no warning is emitted. + """ + self.flakes(''' + from fu import bar + class bar(bar): + pass + ''') + + + def test_redefinedInClass(self): + """ + Test that shadowing a global with a class attribute does not produce a + warning. + """ + self.flakes(''' + import fu + class bar: + fu = 1 + print fu + ''') + + def test_usedInFunction(self): + self.flakes(''' + import fu + def fun(): + print fu + ''') + + def test_shadowedByParameter(self): + self.flakes(''' + import fu + def fun(fu): + print fu + ''', m.UnusedImport) + + self.flakes(''' + import fu + def fun(fu): + print fu + print fu + ''') + + def test_newAssignment(self): + self.flakes('fu = None') + + def test_usedInGetattr(self): + self.flakes('import fu; fu.bar.baz') + self.flakes('import fu; "bar".fu.baz', m.UnusedImport) + + def test_usedInSlice(self): + self.flakes('import fu; print fu.bar[1:]') + + def test_usedInIfBody(self): + self.flakes(''' + import fu + if True: print fu + ''') + + def test_usedInIfConditional(self): + self.flakes(''' + import fu + if fu: pass + ''') + + def test_usedInElifConditional(self): + self.flakes(''' + import fu + if False: pass + elif fu: pass + ''') + + def test_usedInElse(self): + self.flakes(''' + import fu + if False: pass + else: print fu + ''') + + def test_usedInCall(self): + self.flakes('import fu; fu.bar()') + + def test_usedInClass(self): + self.flakes(''' + import fu + class bar: + bar = fu + ''') + + def test_usedInClassBase(self): + self.flakes(''' + import fu + class bar(object, fu.baz): + pass + ''') + + def test_notUsedInNestedScope(self): + self.flakes(''' + import fu + def bleh(): + pass + print fu + ''') + + def test_usedInFor(self): + self.flakes(''' + import fu + for bar in range(9): + print fu + ''') + + def test_usedInForElse(self): + self.flakes(''' + import fu + for bar in range(10): + pass + else: + print fu + ''') + + def test_redefinedByFor(self): + self.flakes(''' + import fu + for fu in range(2): + pass + ''', m.RedefinedWhileUnused) + + def test_shadowedByFor(self): + """ + Test that shadowing a global name with a for loop variable generates a + warning. + """ + self.flakes(''' + import fu + fu.bar() + for fu in (): + pass + ''', m.ImportShadowedByLoopVar) + + def test_shadowedByForDeep(self): + """ + Test that shadowing a global name with a for loop variable nested in a + tuple unpack generates a warning. + """ + self.flakes(''' + import fu + fu.bar() + for (x, y, z, (a, b, c, (fu,))) in (): + pass + ''', m.ImportShadowedByLoopVar) + + def test_usedInReturn(self): + self.flakes(''' + import fu + def fun(): + return fu + ''') + + def test_usedInOperators(self): + self.flakes('import fu; 3 + fu.bar') + self.flakes('import fu; 3 % fu.bar') + self.flakes('import fu; 3 - fu.bar') + self.flakes('import fu; 3 * fu.bar') + self.flakes('import fu; 3 ** fu.bar') + self.flakes('import fu; 3 / fu.bar') + self.flakes('import fu; 3 // fu.bar') + self.flakes('import fu; -fu.bar') + self.flakes('import fu; ~fu.bar') + self.flakes('import fu; 1 == fu.bar') + self.flakes('import fu; 1 | fu.bar') + self.flakes('import fu; 1 & fu.bar') + self.flakes('import fu; 1 ^ fu.bar') + self.flakes('import fu; 1 >> fu.bar') + self.flakes('import fu; 1 << fu.bar') + + def test_usedInAssert(self): + self.flakes('import fu; assert fu.bar') + + def test_usedInSubscript(self): + self.flakes('import fu; fu.bar[1]') + + def test_usedInLogic(self): + self.flakes('import fu; fu and False') + self.flakes('import fu; fu or False') + self.flakes('import fu; not fu.bar') + + def test_usedInList(self): + self.flakes('import fu; [fu]') + + def test_usedInTuple(self): + self.flakes('import fu; (fu,)') + + def test_usedInTry(self): + self.flakes(''' + import fu + try: fu + except: pass + ''') + + def test_usedInExcept(self): + self.flakes(''' + import fu + try: fu + except: pass + ''') + + def test_redefinedByExcept(self): + self.flakes(''' + import fu + try: pass + except Exception, fu: pass + ''', m.RedefinedWhileUnused) + + def test_usedInRaise(self): + self.flakes(''' + import fu + raise fu.bar + ''') + + def test_usedInYield(self): + self.flakes(''' + import fu + def gen(): + yield fu + ''') + + def test_usedInDict(self): + self.flakes('import fu; {fu:None}') + self.flakes('import fu; {1:fu}') + + def test_usedInParameterDefault(self): + self.flakes(''' + import fu + def f(bar=fu): + pass + ''') + + def test_usedInAttributeAssign(self): + self.flakes('import fu; fu.bar = 1') + + def test_usedInKeywordArg(self): + self.flakes('import fu; fu.bar(stuff=fu)') + + def test_usedInAssignment(self): + self.flakes('import fu; bar=fu') + self.flakes('import fu; n=0; n+=fu') + + def test_usedInListComp(self): + self.flakes('import fu; [fu for _ in range(1)]') + self.flakes('import fu; [1 for _ in range(1) if fu]') + + def test_redefinedByListComp(self): + self.flakes('import fu; [1 for fu in range(1)]', m.RedefinedWhileUnused) + + + def test_usedInTryFinally(self): + self.flakes(''' + import fu + try: pass + finally: fu + ''') + + self.flakes(''' + import fu + try: fu + finally: pass + ''') + + def test_usedInWhile(self): + self.flakes(''' + import fu + while 0: + fu + ''') + + self.flakes(''' + import fu + while fu: pass + ''') + + def test_usedInGlobal(self): + self.flakes(''' + import fu + def f(): global fu + ''', m.UnusedImport) + + def test_usedInBackquote(self): + self.flakes('import fu; `fu`') + + def test_usedInExec(self): + self.flakes('import fu; exec "print 1" in fu.bar') + + def test_usedInLambda(self): + self.flakes('import fu; lambda: fu') + + def test_shadowedByLambda(self): + self.flakes('import fu; lambda fu: fu', m.UnusedImport) + + def test_usedInSliceObj(self): + self.flakes('import fu; "meow"[::fu]') + + def test_unusedInNestedScope(self): + self.flakes(''' + def bar(): + import fu + fu + ''', m.UnusedImport, m.UndefinedName) + + def test_methodsDontUseClassScope(self): + self.flakes(''' + class bar: + import fu + def fun(self): + fu + ''', m.UnusedImport, m.UndefinedName) + + def test_nestedFunctionsNestScope(self): + self.flakes(''' + def a(): + def b(): + fu + import fu + ''') + + def test_nestedClassAndFunctionScope(self): + self.flakes(''' + def a(): + import fu + class b: + def c(self): + print fu + ''') + + def test_importStar(self): + self.flakes('from fu import *', m.ImportStarUsed) + + + def test_packageImport(self): + """ + If a dotted name is imported and used, no warning is reported. + """ + self.flakes(''' + import fu.bar + fu.bar + ''') + + + def test_unusedPackageImport(self): + """ + If a dotted name is imported and not used, an unused import warning is + reported. + """ + self.flakes('import fu.bar', m.UnusedImport) + + + def test_duplicateSubmoduleImport(self): + """ + If a submodule of a package is imported twice, an unused import warning + and a redefined while unused warning are reported. + """ + self.flakes(''' + import fu.bar, fu.bar + fu.bar + ''', m.RedefinedWhileUnused) + self.flakes(''' + import fu.bar + import fu.bar + fu.bar + ''', m.RedefinedWhileUnused) + + + def test_differentSubmoduleImport(self): + """ + If two different submodules of a package are imported, no duplicate + import warning is reported for the package. + """ + self.flakes(''' + import fu.bar, fu.baz + fu.bar, fu.baz + ''') + self.flakes(''' + import fu.bar + import fu.baz + fu.bar, fu.baz + ''') + + def test_assignRHSFirst(self): + self.flakes('import fu; fu = fu') + self.flakes('import fu; fu, bar = fu') + self.flakes('import fu; [fu, bar] = fu') + self.flakes('import fu; fu += fu') + + def test_tryingMultipleImports(self): + self.flakes(''' + try: + import fu + except ImportError: + import bar as fu + ''') + test_tryingMultipleImports.todo = '' + + def test_nonGlobalDoesNotRedefine(self): + self.flakes(''' + import fu + def a(): + fu = 3 + return fu + fu + ''') + + def test_functionsRunLater(self): + self.flakes(''' + def a(): + fu + import fu + ''') + + def test_functionNamesAreBoundNow(self): + self.flakes(''' + import fu + def fu(): + fu + fu + ''', m.RedefinedWhileUnused) + + def test_ignoreNonImportRedefinitions(self): + self.flakes('a = 1; a = 2') + + def test_importingForImportError(self): + self.flakes(''' + try: + import fu + except ImportError: + pass + ''') + test_importingForImportError.todo = '' + + def test_importedInClass(self): + '''Imports in class scope can be used through self''' + self.flakes(''' + class c: + import i + def __init__(self): + self.i + ''') + test_importedInClass.todo = 'requires evaluating attribute access' + + def test_futureImport(self): + '''__future__ is special''' + self.flakes('from __future__ import division') + self.flakes(''' + "docstring is allowed before future import" + from __future__ import division + ''') + + def test_futureImportFirst(self): + """ + __future__ imports must come before anything else. + """ + self.flakes(''' + x = 5 + from __future__ import division + ''', m.LateFutureImport) + self.flakes(''' + from foo import bar + from __future__ import division + bar + ''', m.LateFutureImport) + + + +class TestSpecialAll(harness.Test): + """ + Tests for suppression of unused import warnings by C{__all__}. + """ + def test_ignoredInFunction(self): + """ + An C{__all__} definition does not suppress unused import warnings in a + function scope. + """ + self.flakes(''' + def foo(): + import bar + __all__ = ["bar"] + ''', m.UnusedImport, m.UnusedVariable) + + + def test_ignoredInClass(self): + """ + An C{__all__} definition does not suppress unused import warnings in a + class scope. + """ + self.flakes(''' + class foo: + import bar + __all__ = ["bar"] + ''', m.UnusedImport) + + + def test_warningSuppressed(self): + """ + If a name is imported and unused but is named in C{__all__}, no warning + is reported. + """ + self.flakes(''' + import foo + __all__ = ["foo"] + ''') + + + def test_unrecognizable(self): + """ + If C{__all__} is defined in a way that can't be recognized statically, + it is ignored. + """ + self.flakes(''' + import foo + __all__ = ["f" + "oo"] + ''', m.UnusedImport) + self.flakes(''' + import foo + __all__ = [] + ["foo"] + ''', m.UnusedImport) + + + def test_unboundExported(self): + """ + If C{__all__} includes a name which is not bound, a warning is emitted. + """ + self.flakes(''' + __all__ = ["foo"] + ''', m.UndefinedExport) + + # Skip this in __init__.py though, since the rules there are a little + # different. + for filename in ["foo/__init__.py", "__init__.py"]: + self.flakes(''' + __all__ = ["foo"] + ''', filename=filename) + + + def test_usedInGenExp(self): + """ + Using a global in a generator expression results in no warnings. + """ + self.flakes('import fu; (fu for _ in range(1))') + self.flakes('import fu; (1 for _ in range(1) if fu)') + + + def test_redefinedByGenExp(self): + """ + Re-using a global name as the loop variable for a generator + expression results in a redefinition warning. + """ + self.flakes('import fu; (1 for fu in range(1))', m.RedefinedWhileUnused) + + + def test_usedAsDecorator(self): + """ + Using a global name in a decorator statement results in no warnings, + but using an undefined name in a decorator statement results in an + undefined name warning. + """ + self.flakes(''' + from interior import decorate + @decorate + def f(): + return "hello" + ''') + + self.flakes(''' + from interior import decorate + @decorate('value') + def f(): + return "hello" + ''') + + self.flakes(''' + @decorate + def f(): + return "hello" + ''', m.UndefinedName) + + +class Python26Tests(harness.Test): + """ + Tests for checking of syntax which is valid in PYthon 2.6 and newer. + """ + if version_info < (2, 6): + skip = "Python 2.6 required for class decorator tests." + + + def test_usedAsClassDecorator(self): + """ + Using an imported name as a class decorator results in no warnings, + but using an undefined name as a class decorator results in an + undefined name warning. + """ + self.flakes(''' + from interior import decorate + @decorate + class foo: + pass + ''') + + self.flakes(''' + from interior import decorate + @decorate("foo") + class bar: + pass + ''') + + self.flakes(''' + @decorate + class foo: + pass + ''', m.UndefinedName)
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/pyflakes/test/test_other.py Sun Apr 29 16:30:44 2012 -0500 @@ -0,0 +1,575 @@ +# (c) 2005-2010 Divmod, Inc. +# See LICENSE file for details + +""" +Tests for various Pyflakes behavior. +""" + +from sys import version_info + +from pyflakes import messages as m +from pyflakes.test import harness + + +class Test(harness.Test): + + def test_duplicateArgs(self): + self.flakes('def fu(bar, bar): pass', m.DuplicateArgument) + + def test_localReferencedBeforeAssignment(self): + self.flakes(''' + a = 1 + def f(): + a; a=1 + f() + ''', m.UndefinedName) + test_localReferencedBeforeAssignment.todo = 'this requires finding all assignments in the function body first' + + def test_redefinedFunction(self): + """ + Test that shadowing a function definition with another one raises a + warning. + """ + self.flakes(''' + def a(): pass + def a(): pass + ''', m.RedefinedFunction) + + def test_redefinedClassFunction(self): + """ + Test that shadowing a function definition in a class suite with another + one raises a warning. + """ + self.flakes(''' + class A: + def a(): pass + def a(): pass + ''', m.RedefinedFunction) + + def test_functionDecorator(self): + """ + Test that shadowing a function definition with a decorated version of + that function does not raise a warning. + """ + self.flakes(''' + from somewhere import somedecorator + + def a(): pass + a = somedecorator(a) + ''') + + def test_classFunctionDecorator(self): + """ + Test that shadowing a function definition in a class suite with a + decorated version of that function does not raise a warning. + """ + self.flakes(''' + class A: + def a(): pass + a = classmethod(a) + ''') + + def test_unaryPlus(self): + '''Don't die on unary +''' + self.flakes('+1') + + + def test_undefinedBaseClass(self): + """ + If a name in the base list of a class definition is undefined, a + warning is emitted. + """ + self.flakes(''' + class foo(foo): + pass + ''', m.UndefinedName) + + + def test_classNameUndefinedInClassBody(self): + """ + If a class name is used in the body of that class's definition and + the name is not already defined, a warning is emitted. + """ + self.flakes(''' + class foo: + foo + ''', m.UndefinedName) + + + def test_classNameDefinedPreviously(self): + """ + If a class name is used in the body of that class's definition and + the name was previously defined in some other way, no warning is + emitted. + """ + self.flakes(''' + foo = None + class foo: + foo + ''') + + + def test_comparison(self): + """ + If a defined name is used on either side of any of the six comparison + operators, no warning is emitted. + """ + self.flakes(''' + x = 10 + y = 20 + x < y + x <= y + x == y + x != y + x >= y + x > y + ''') + + + def test_identity(self): + """ + If a deefined name is used on either side of an identity test, no + warning is emitted. + """ + self.flakes(''' + x = 10 + y = 20 + x is y + x is not y + ''') + + + def test_containment(self): + """ + If a defined name is used on either side of a containment test, no + warning is emitted. + """ + self.flakes(''' + x = 10 + y = 20 + x in y + x not in y + ''') + + + def test_loopControl(self): + """ + break and continue statements are supported. + """ + self.flakes(''' + for x in [1, 2]: + break + ''') + self.flakes(''' + for x in [1, 2]: + continue + ''') + + + def test_ellipsis(self): + """ + Ellipsis in a slice is supported. + """ + self.flakes(''' + [1, 2][...] + ''') + + + def test_extendedSlice(self): + """ + Extended slices are supported. + """ + self.flakes(''' + x = 3 + [1, 2][x,:] + ''') + + + +class TestUnusedAssignment(harness.Test): + """ + Tests for warning about unused assignments. + """ + + def test_unusedVariable(self): + """ + Warn when a variable in a function is assigned a value that's never + used. + """ + self.flakes(''' + def a(): + b = 1 + ''', m.UnusedVariable) + + + def test_assignToGlobal(self): + """ + Assigning to a global and then not using that global is perfectly + acceptable. Do not mistake it for an unused local variable. + """ + self.flakes(''' + b = 0 + def a(): + global b + b = 1 + ''') + + + def test_assignToMember(self): + """ + Assigning to a member of another object and then not using that member + variable is perfectly acceptable. Do not mistake it for an unused + local variable. + """ + # XXX: Adding this test didn't generate a failure. Maybe not + # necessary? + self.flakes(''' + class b: + pass + def a(): + b.foo = 1 + ''') + + + def test_assignInForLoop(self): + """ + Don't warn when a variable in a for loop is assigned to but not used. + """ + self.flakes(''' + def f(): + for i in range(10): + pass + ''') + + + def test_assignInListComprehension(self): + """ + Don't warn when a variable in a list comprehension is assigned to but + not used. + """ + self.flakes(''' + def f(): + [None for i in range(10)] + ''') + + + def test_generatorExpression(self): + """ + Don't warn when a variable in a generator expression is assigned to but not used. + """ + self.flakes(''' + def f(): + (None for i in range(10)) + ''') + + + def test_assignmentInsideLoop(self): + """ + Don't warn when a variable assignment occurs lexically after its use. + """ + self.flakes(''' + def f(): + x = None + for i in range(10): + if i > 2: + return x + x = i * 2 + ''') + + + def test_tupleUnpacking(self): + """ + Don't warn when a variable included in tuple unpacking is unused. It's + very common for variables in a tuple unpacking assignment to be unused + in good Python code, so warning will only create false positives. + """ + self.flakes(''' + def f(): + (x, y) = 1, 2 + ''') + + + def test_listUnpacking(self): + """ + Don't warn when a variable included in list unpacking is unused. + """ + self.flakes(''' + def f(): + [x, y] = [1, 2] + ''') + + + def test_closedOver(self): + """ + Don't warn when the assignment is used in an inner function. + """ + self.flakes(''' + def barMaker(): + foo = 5 + def bar(): + return foo + return bar + ''') + + + def test_doubleClosedOver(self): + """ + Don't warn when the assignment is used in an inner function, even if + that inner function itself is in an inner function. + """ + self.flakes(''' + def barMaker(): + foo = 5 + def bar(): + def baz(): + return foo + return bar + ''') + + + +class Python25Test(harness.Test): + """ + Tests for checking of syntax only available in Python 2.5 and newer. + """ + if version_info < (2, 5): + skip = "Python 2.5 required for if-else and with tests" + + def test_ifexp(self): + """ + Test C{foo if bar else baz} statements. + """ + self.flakes("a = 'moo' if True else 'oink'") + self.flakes("a = foo if True else 'oink'", m.UndefinedName) + self.flakes("a = 'moo' if True else bar", m.UndefinedName) + + + def test_withStatementNoNames(self): + """ + No warnings are emitted for using inside or after a nameless C{with} + statement a name defined beforehand. + """ + self.flakes(''' + from __future__ import with_statement + bar = None + with open("foo"): + bar + bar + ''') + + def test_withStatementSingleName(self): + """ + No warnings are emitted for using a name defined by a C{with} statement + within the suite or afterwards. + """ + self.flakes(''' + from __future__ import with_statement + with open('foo') as bar: + bar + bar + ''') + + + def test_withStatementAttributeName(self): + """ + No warnings are emitted for using an attribute as the target of a + C{with} statement. + """ + self.flakes(''' + from __future__ import with_statement + import foo + with open('foo') as foo.bar: + pass + ''') + + + def test_withStatementSubscript(self): + """ + No warnings are emitted for using a subscript as the target of a + C{with} statement. + """ + self.flakes(''' + from __future__ import with_statement + import foo + with open('foo') as foo[0]: + pass + ''') + + + def test_withStatementSubscriptUndefined(self): + """ + An undefined name warning is emitted if the subscript used as the + target of a C{with} statement is not defined. + """ + self.flakes(''' + from __future__ import with_statement + import foo + with open('foo') as foo[bar]: + pass + ''', m.UndefinedName) + + + def test_withStatementTupleNames(self): + """ + No warnings are emitted for using any of the tuple of names defined by + a C{with} statement within the suite or afterwards. + """ + self.flakes(''' + from __future__ import with_statement + with open('foo') as (bar, baz): + bar, baz + bar, baz + ''') + + + def test_withStatementListNames(self): + """ + No warnings are emitted for using any of the list of names defined by a + C{with} statement within the suite or afterwards. + """ + self.flakes(''' + from __future__ import with_statement + with open('foo') as [bar, baz]: + bar, baz + bar, baz + ''') + + + def test_withStatementComplicatedTarget(self): + """ + If the target of a C{with} statement uses any or all of the valid forms + for that part of the grammar (See + U{http://docs.python.org/reference/compound_stmts.html#the-with-statement}), + the names involved are checked both for definedness and any bindings + created are respected in the suite of the statement and afterwards. + """ + self.flakes(''' + from __future__ import with_statement + c = d = e = g = h = i = None + with open('foo') as [(a, b), c[d], e.f, g[h:i]]: + a, b, c, d, e, g, h, i + a, b, c, d, e, g, h, i + ''') + + + def test_withStatementSingleNameUndefined(self): + """ + An undefined name warning is emitted if the name first defined by a + C{with} statement is used before the C{with} statement. + """ + self.flakes(''' + from __future__ import with_statement + bar + with open('foo') as bar: + pass + ''', m.UndefinedName) + + + def test_withStatementTupleNamesUndefined(self): + """ + An undefined name warning is emitted if a name first defined by a the + tuple-unpacking form of the C{with} statement is used before the + C{with} statement. + """ + self.flakes(''' + from __future__ import with_statement + baz + with open('foo') as (bar, baz): + pass + ''', m.UndefinedName) + + + def test_withStatementSingleNameRedefined(self): + """ + A redefined name warning is emitted if a name bound by an import is + rebound by the name defined by a C{with} statement. + """ + self.flakes(''' + from __future__ import with_statement + import bar + with open('foo') as bar: + pass + ''', m.RedefinedWhileUnused) + + + def test_withStatementTupleNamesRedefined(self): + """ + A redefined name warning is emitted if a name bound by an import is + rebound by one of the names defined by the tuple-unpacking form of a + C{with} statement. + """ + self.flakes(''' + from __future__ import with_statement + import bar + with open('foo') as (bar, baz): + pass + ''', m.RedefinedWhileUnused) + + + def test_withStatementUndefinedInside(self): + """ + An undefined name warning is emitted if a name is used inside the + body of a C{with} statement without first being bound. + """ + self.flakes(''' + from __future__ import with_statement + with open('foo') as bar: + baz + ''', m.UndefinedName) + + + def test_withStatementNameDefinedInBody(self): + """ + A name defined in the body of a C{with} statement can be used after + the body ends without warning. + """ + self.flakes(''' + from __future__ import with_statement + with open('foo') as bar: + baz = 10 + baz + ''') + + + def test_withStatementUndefinedInExpression(self): + """ + An undefined name warning is emitted if a name in the I{test} + expression of a C{with} statement is undefined. + """ + self.flakes(''' + from __future__ import with_statement + with bar as baz: + pass + ''', m.UndefinedName) + + self.flakes(''' + from __future__ import with_statement + with bar as bar: + pass + ''', m.UndefinedName) + + + +class Python27Test(harness.Test): + """ + Tests for checking of syntax only available in Python 2.7 and newer. + """ + if version_info < (2, 7): + skip = "Python 2.7 required for dict/set comprehension tests" + + def test_dictComprehension(self): + """ + Dict comprehensions are properly handled. + """ + self.flakes(''' + a = {1: x for x in range(10)} + ''') + + def test_setComprehensionAndLiteral(self): + """ + Set comprehensions are properly handled. + """ + self.flakes(''' + a = {1, 2, 3} + b = {x for x in range(10)} + ''')
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/pyflakes/test/test_script.py Sun Apr 29 16:30:44 2012 -0500 @@ -0,0 +1,185 @@ + +""" +Tests for L{pyflakes.scripts.pyflakes}. +""" + +import sys +from StringIO import StringIO + +from twisted.python.filepath import FilePath +from twisted.trial.unittest import TestCase + +from pyflakes.scripts.pyflakes import checkPath + +def withStderrTo(stderr, f): + """ + Call C{f} with C{sys.stderr} redirected to C{stderr}. + """ + (outer, sys.stderr) = (sys.stderr, stderr) + try: + return f() + finally: + sys.stderr = outer + + + +class CheckTests(TestCase): + """ + Tests for L{check} and L{checkPath} which check a file for flakes. + """ + def test_missingTrailingNewline(self): + """ + Source which doesn't end with a newline shouldn't cause any + exception to be raised nor an error indicator to be returned by + L{check}. + """ + fName = self.mktemp() + FilePath(fName).setContent("def foo():\n\tpass\n\t") + self.assertFalse(checkPath(fName)) + + + def test_checkPathNonExisting(self): + """ + L{checkPath} handles non-existing files. + """ + err = StringIO() + count = withStderrTo(err, lambda: checkPath('extremo')) + self.assertEquals(err.getvalue(), 'extremo: No such file or directory\n') + self.assertEquals(count, 1) + + + def test_multilineSyntaxError(self): + """ + Source which includes a syntax error which results in the raised + L{SyntaxError.text} containing multiple lines of source are reported + with only the last line of that source. + """ + source = """\ +def foo(): + ''' + +def bar(): + pass + +def baz(): + '''quux''' +""" + + # Sanity check - SyntaxError.text should be multiple lines, if it + # isn't, something this test was unprepared for has happened. + def evaluate(source): + exec source + exc = self.assertRaises(SyntaxError, evaluate, source) + self.assertTrue(exc.text.count('\n') > 1) + + sourcePath = FilePath(self.mktemp()) + sourcePath.setContent(source) + err = StringIO() + count = withStderrTo(err, lambda: checkPath(sourcePath.path)) + self.assertEqual(count, 1) + + self.assertEqual( + err.getvalue(), + """\ +%s:8: invalid syntax + '''quux''' + ^ +""" % (sourcePath.path,)) + + + def test_eofSyntaxError(self): + """ + The error reported for source files which end prematurely causing a + syntax error reflects the cause for the syntax error. + """ + source = "def foo(" + sourcePath = FilePath(self.mktemp()) + sourcePath.setContent(source) + err = StringIO() + count = withStderrTo(err, lambda: checkPath(sourcePath.path)) + self.assertEqual(count, 1) + self.assertEqual( + err.getvalue(), + """\ +%s:1: unexpected EOF while parsing +def foo( + ^ +""" % (sourcePath.path,)) + + + def test_nonDefaultFollowsDefaultSyntaxError(self): + """ + Source which has a non-default argument following a default argument + should include the line number of the syntax error. However these + exceptions do not include an offset. + """ + source = """\ +def foo(bar=baz, bax): + pass +""" + sourcePath = FilePath(self.mktemp()) + sourcePath.setContent(source) + err = StringIO() + count = withStderrTo(err, lambda: checkPath(sourcePath.path)) + self.assertEqual(count, 1) + self.assertEqual( + err.getvalue(), + """\ +%s:1: non-default argument follows default argument +def foo(bar=baz, bax): +""" % (sourcePath.path,)) + + + def test_nonKeywordAfterKeywordSyntaxError(self): + """ + Source which has a non-keyword argument after a keyword argument should + include the line number of the syntax error. However these exceptions + do not include an offset. + """ + source = """\ +foo(bar=baz, bax) +""" + sourcePath = FilePath(self.mktemp()) + sourcePath.setContent(source) + err = StringIO() + count = withStderrTo(err, lambda: checkPath(sourcePath.path)) + self.assertEqual(count, 1) + self.assertEqual( + err.getvalue(), + """\ +%s:1: non-keyword arg after keyword arg +foo(bar=baz, bax) +""" % (sourcePath.path,)) + + + def test_permissionDenied(self): + """ + If the a source file is not readable, this is reported on standard + error. + """ + sourcePath = FilePath(self.mktemp()) + sourcePath.setContent('') + sourcePath.chmod(0) + err = StringIO() + count = withStderrTo(err, lambda: checkPath(sourcePath.path)) + self.assertEquals(count, 1) + self.assertEquals( + err.getvalue(), "%s: Permission denied\n" % (sourcePath.path,)) + + + def test_misencodedFile(self): + """ + If a source file contains bytes which cannot be decoded, this is + reported on stderr. + """ + source = u"""\ +# coding: ascii +x = "\N{SNOWMAN}" +""".encode('utf-8') + sourcePath = FilePath(self.mktemp()) + sourcePath.setContent(source) + err = StringIO() + count = withStderrTo(err, lambda: checkPath(sourcePath.path)) + self.assertEquals(count, 1) + self.assertEquals( + err.getvalue(), "%s: problem decoding source\n" % (sourcePath.path,))
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/pyflakes/test/test_undefined_names.py Sun Apr 29 16:30:44 2012 -0500 @@ -0,0 +1,265 @@ + +from _ast import PyCF_ONLY_AST + +from twisted.trial.unittest import TestCase + +from pyflakes import messages as m, checker +from pyflakes.test import harness + + +class Test(harness.Test): + def test_undefined(self): + self.flakes('bar', m.UndefinedName) + + def test_definedInListComp(self): + self.flakes('[a for a in range(10) if a]') + + + def test_functionsNeedGlobalScope(self): + self.flakes(''' + class a: + def b(): + fu + fu = 1 + ''') + + def test_builtins(self): + self.flakes('range(10)') + + + def test_magicGlobalsFile(self): + """ + Use of the C{__file__} magic global should not emit an undefined name + warning. + """ + self.flakes('__file__') + + + def test_magicGlobalsBuiltins(self): + """ + Use of the C{__builtins__} magic global should not emit an undefined + name warning. + """ + self.flakes('__builtins__') + + + def test_magicGlobalsName(self): + """ + Use of the C{__name__} magic global should not emit an undefined name + warning. + """ + self.flakes('__name__') + + + def test_magicGlobalsPath(self): + """ + Use of the C{__path__} magic global should not emit an undefined name + warning, if you refer to it from a file called __init__.py. + """ + self.flakes('__path__', m.UndefinedName) + self.flakes('__path__', filename='package/__init__.py') + + + def test_globalImportStar(self): + '''Can't find undefined names with import *''' + self.flakes('from fu import *; bar', m.ImportStarUsed) + + def test_localImportStar(self): + '''A local import * still allows undefined names to be found in upper scopes''' + self.flakes(''' + def a(): + from fu import * + bar + ''', m.ImportStarUsed, m.UndefinedName) + + def test_unpackedParameter(self): + '''Unpacked function parameters create bindings''' + self.flakes(''' + def a((bar, baz)): + bar; baz + ''') + + def test_definedByGlobal(self): + '''"global" can make an otherwise undefined name in another function defined''' + self.flakes(''' + def a(): global fu; fu = 1 + def b(): fu + ''') + test_definedByGlobal.todo = '' + + def test_globalInGlobalScope(self): + """ + A global statement in the global scope is ignored. + """ + self.flakes(''' + global x + def foo(): + print x + ''', m.UndefinedName) + + def test_del(self): + '''del deletes bindings''' + self.flakes('a = 1; del a; a', m.UndefinedName) + + def test_delGlobal(self): + '''del a global binding from a function''' + self.flakes(''' + a = 1 + def f(): + global a + del a + a + ''') + + def test_delUndefined(self): + '''del an undefined name''' + self.flakes('del a', m.UndefinedName) + + def test_globalFromNestedScope(self): + '''global names are available from nested scopes''' + self.flakes(''' + a = 1 + def b(): + def c(): + a + ''') + + def test_laterRedefinedGlobalFromNestedScope(self): + """ + Test that referencing a local name that shadows a global, before it is + defined, generates a warning. + """ + self.flakes(''' + a = 1 + def fun(): + a + a = 2 + return a + ''', m.UndefinedLocal) + + def test_laterRedefinedGlobalFromNestedScope2(self): + """ + Test that referencing a local name in a nested scope that shadows a + global declared in an enclosing scope, before it is defined, generates + a warning. + """ + self.flakes(''' + a = 1 + def fun(): + global a + def fun2(): + a + a = 2 + return a + ''', m.UndefinedLocal) + + + def test_intermediateClassScopeIgnored(self): + """ + If a name defined in an enclosing scope is shadowed by a local variable + and the name is used locally before it is bound, an unbound local + warning is emitted, even if there is a class scope between the enclosing + scope and the local scope. + """ + self.flakes(''' + def f(): + x = 1 + class g: + def h(self): + a = x + x = None + print x, a + print x + ''', m.UndefinedLocal) + + + def test_doubleNestingReportsClosestName(self): + """ + Test that referencing a local name in a nested scope that shadows a + variable declared in two different outer scopes before it is defined + in the innermost scope generates an UnboundLocal warning which + refers to the nearest shadowed name. + """ + exc = self.flakes(''' + def a(): + x = 1 + def b(): + x = 2 # line 5 + def c(): + x + x = 3 + return x + return x + return x + ''', m.UndefinedLocal).messages[0] + self.assertEqual(exc.message_args, ('x', 5)) + + + def test_laterRedefinedGlobalFromNestedScope3(self): + """ + Test that referencing a local name in a nested scope that shadows a + global, before it is defined, generates a warning. + """ + self.flakes(''' + def fun(): + a = 1 + def fun2(): + a + a = 1 + return a + return a + ''', m.UndefinedLocal) + + def test_nestedClass(self): + '''nested classes can access enclosing scope''' + self.flakes(''' + def f(foo): + class C: + bar = foo + def f(self): + return foo + return C() + + f(123).f() + ''') + + def test_badNestedClass(self): + '''free variables in nested classes must bind at class creation''' + self.flakes(''' + def f(): + class C: + bar = foo + foo = 456 + return foo + f() + ''', m.UndefinedName) + + def test_definedAsStarArgs(self): + '''star and double-star arg names are defined''' + self.flakes(''' + def f(a, *b, **c): + print a, b, c + ''') + + def test_definedInGenExp(self): + """ + Using the loop variable of a generator expression results in no + warnings. + """ + self.flakes('(a for a in xrange(10) if a)') + + + +class NameTests(TestCase): + """ + Tests for some extra cases of name handling. + """ + def test_impossibleContext(self): + """ + A Name node with an unrecognized context results in a RuntimeError being + raised. + """ + tree = compile("x = 10", "<test>", "exec", PyCF_ONLY_AST) + # Make it into something unrecognizable. + tree.body[0].targets[0].ctx = object() + self.assertRaises(RuntimeError, checker.Checker, tree)
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vim/vimfiles/bundle/pyflakes-vim/ftplugin/python/pyflakes/setup.py Sun Apr 29 16:30:44 2012 -0500 @@ -0,0 +1,28 @@ +#!/usr/bin/python +# (c) 2005-2009 Divmod, Inc. See LICENSE file for details + +from distutils.core import setup + +setup( + name="pyflakes", + license="MIT", + version="0.4.0", + description="passive checker of Python programs", + author="Phil Frost", + maintainer="Moe Aboulkheir", + maintainer_email="moe@divmod.com", + url="http://www.divmod.org/trac/wiki/DivmodPyflakes", + packages=["pyflakes", "pyflakes.scripts", "pyflakes.test"], + scripts=["bin/pyflakes"], + long_description="""Pyflakes is program to analyze Python programs and detect various errors. It +works by parsing the source file, not importing it, so it is safe to use on +modules with side effects. It's also much faster.""", + classifiers=[ + "Development Status :: 6 - Mature", + "Environment :: Console", + "Intended Audience :: Developers", + "License :: OSI Approved :: MIT License", + "Programming Language :: Python", + "Topic :: Software Development", + "Topic :: Utilities", + ])