Mercurial > vim
annotate runtime/autoload/pythoncomplete.vim @ 19767:4ee37e23b782
Added tag v8.2.0439 for changeset aa4cbdb676cd3dde5e939ec5cb078e2a7345cd6c
author | Bram Moolenaar <Bram@vim.org> |
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date | Mon, 23 Mar 2020 23:00:05 +0100 |
parents | ffad29dc7eee |
children | 17c4178f26ea |
rev | line source |
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827 | 1 "pythoncomplete.vim - Omni Completion for python |
838 | 2 " Maintainer: Aaron Griffin <aaronmgriffin@gmail.com> |
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3 " Version: 0.9 |
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4 " Last Updated: 18 Jun 2009 |
1121 | 5 " |
6 " Changes | |
7 " TODO: | |
8 " 'info' item output can use some formatting work | |
9 " Add an "unsafe eval" mode, to allow for return type evaluation | |
10 " Complete basic syntax along with import statements | |
11 " i.e. "import url<c-x,c-o>" | |
12 " Continue parsing on invalid line?? | |
827 | 13 " |
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14 " v 0.9 |
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15 " * Fixed docstring parsing for classes and functions |
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16 " * Fixed parsing of *args and **kwargs type arguments |
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17 " * Better function param parsing to handle things like tuples and |
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18 " lambda defaults args |
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19 " |
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20 " v 0.8 |
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21 " * Fixed an issue where the FIRST assignment was always used instead of |
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22 " using a subsequent assignment for a variable |
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23 " * Fixed a scoping issue when working inside a parameterless function |
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24 " |
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25 " |
1121 | 26 " v 0.7 |
27 " * Fixed function list sorting (_ and __ at the bottom) | |
28 " * Removed newline removal from docs. It appears vim handles these better in | |
29 " recent patches | |
30 " | |
31 " v 0.6: | |
32 " * Fixed argument completion | |
33 " * Removed the 'kind' completions, as they are better indicated | |
34 " with real syntax | |
35 " * Added tuple assignment parsing (whoops, that was forgotten) | |
36 " * Fixed import handling when flattening scope | |
37 " | |
38 " v 0.5: | |
838 | 39 " Yeah, I skipped a version number - 0.4 was never public. |
40 " It was a bugfix version on top of 0.3. This is a complete | |
41 " rewrite. | |
827 | 42 " |
43 | |
44 if !has('python') | |
45 echo "Error: Required vim compiled with +python" | |
46 finish | |
47 endif | |
48 | |
49 function! pythoncomplete#Complete(findstart, base) | |
50 "findstart = 1 when we need to get the text length | |
838 | 51 if a:findstart == 1 |
827 | 52 let line = getline('.') |
53 let idx = col('.') | |
54 while idx > 0 | |
55 let idx -= 1 | |
838 | 56 let c = line[idx] |
827 | 57 if c =~ '\w' |
58 continue | |
59 elseif ! c =~ '\.' | |
1121 | 60 let idx = -1 |
827 | 61 break |
62 else | |
63 break | |
64 endif | |
65 endwhile | |
66 | |
67 return idx | |
68 "findstart = 0 when we need to return the list of completions | |
69 else | |
838 | 70 "vim no longer moves the cursor upon completion... fix that |
71 let line = getline('.') | |
72 let idx = col('.') | |
73 let cword = '' | |
74 while idx > 0 | |
75 let idx -= 1 | |
76 let c = line[idx] | |
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77 if c =~ '\w' || c =~ '\.' |
838 | 78 let cword = c . cword |
79 continue | |
80 elseif strlen(cword) > 0 || idx == 0 | |
81 break | |
82 endif | |
83 endwhile | |
84 execute "python vimcomplete('" . cword . "', '" . a:base . "')" | |
827 | 85 return g:pythoncomplete_completions |
86 endif | |
87 endfunction | |
88 | |
89 function! s:DefPython() | |
90 python << PYTHONEOF | |
838 | 91 import sys, tokenize, cStringIO, types |
92 from token import NAME, DEDENT, NEWLINE, STRING | |
827 | 93 |
838 | 94 debugstmts=[] |
95 def dbg(s): debugstmts.append(s) | |
96 def showdbg(): | |
97 for d in debugstmts: print "DBG: %s " % d | |
827 | 98 |
838 | 99 def vimcomplete(context,match): |
100 global debugstmts | |
101 debugstmts = [] | |
827 | 102 try: |
838 | 103 import vim |
104 def complsort(x,y): | |
1121 | 105 try: |
106 xa = x['abbr'] | |
107 ya = y['abbr'] | |
108 if xa[0] == '_': | |
109 if xa[1] == '_' and ya[0:2] == '__': | |
110 return xa > ya | |
111 elif ya[0:2] == '__': | |
112 return -1 | |
113 elif y[0] == '_': | |
114 return xa > ya | |
115 else: | |
116 return 1 | |
117 elif ya[0] == '_': | |
118 return -1 | |
119 else: | |
120 return xa > ya | |
121 except: | |
122 return 0 | |
838 | 123 cmpl = Completer() |
124 cmpl.evalsource('\n'.join(vim.current.buffer),vim.eval("line('.')")) | |
125 all = cmpl.get_completions(context,match) | |
126 all.sort(complsort) | |
127 dictstr = '[' | |
128 # have to do this for double quoting | |
129 for cmpl in all: | |
130 dictstr += '{' | |
131 for x in cmpl: dictstr += '"%s":"%s",' % (x,cmpl[x]) | |
132 dictstr += '"icase":0},' | |
133 if dictstr[-1] == ',': dictstr = dictstr[:-1] | |
134 dictstr += ']' | |
1121 | 135 #dbg("dict: %s" % dictstr) |
838 | 136 vim.command("silent let g:pythoncomplete_completions = %s" % dictstr) |
137 #dbg("Completion dict:\n%s" % all) | |
138 except vim.error: | |
139 dbg("VIM Error: %s" % vim.error) | |
140 | |
141 class Completer(object): | |
142 def __init__(self): | |
143 self.compldict = {} | |
144 self.parser = PyParser() | |
145 | |
146 def evalsource(self,text,line=0): | |
147 sc = self.parser.parse(text,line) | |
148 src = sc.get_code() | |
149 dbg("source: %s" % src) | |
150 try: exec(src) in self.compldict | |
151 except: dbg("parser: %s, %s" % (sys.exc_info()[0],sys.exc_info()[1])) | |
152 for l in sc.locals: | |
153 try: exec(l) in self.compldict | |
154 except: dbg("locals: %s, %s [%s]" % (sys.exc_info()[0],sys.exc_info()[1],l)) | |
155 | |
156 def _cleanstr(self,doc): | |
1121 | 157 return doc.replace('"',' ').replace("'",' ') |
838 | 158 |
159 def get_arguments(self,func_obj): | |
160 def _ctor(obj): | |
161 try: return class_ob.__init__.im_func | |
162 except AttributeError: | |
163 for base in class_ob.__bases__: | |
164 rc = _find_constructor(base) | |
165 if rc is not None: return rc | |
166 return None | |
827 | 167 |
838 | 168 arg_offset = 1 |
169 if type(func_obj) == types.ClassType: func_obj = _ctor(func_obj) | |
170 elif type(func_obj) == types.MethodType: func_obj = func_obj.im_func | |
171 else: arg_offset = 0 | |
172 | |
1121 | 173 arg_text='' |
838 | 174 if type(func_obj) in [types.FunctionType, types.LambdaType]: |
175 try: | |
176 cd = func_obj.func_code | |
177 real_args = cd.co_varnames[arg_offset:cd.co_argcount] | |
1121 | 178 defaults = func_obj.func_defaults or '' |
179 defaults = map(lambda name: "=%s" % name, defaults) | |
838 | 180 defaults = [""] * (len(real_args)-len(defaults)) + defaults |
181 items = map(lambda a,d: a+d, real_args, defaults) | |
182 if func_obj.func_code.co_flags & 0x4: | |
183 items.append("...") | |
184 if func_obj.func_code.co_flags & 0x8: | |
185 items.append("***") | |
1121 | 186 arg_text = (','.join(items)) + ')' |
838 | 187 |
188 except: | |
1121 | 189 dbg("arg completion: %s: %s" % (sys.exc_info()[0],sys.exc_info()[1])) |
838 | 190 pass |
191 if len(arg_text) == 0: | |
192 # The doc string sometimes contains the function signature | |
193 # this works for alot of C modules that are part of the | |
194 # standard library | |
195 doc = func_obj.__doc__ | |
196 if doc: | |
197 doc = doc.lstrip() | |
198 pos = doc.find('\n') | |
199 if pos > 0: | |
200 sigline = doc[:pos] | |
201 lidx = sigline.find('(') | |
202 ridx = sigline.find(')') | |
203 if lidx > 0 and ridx > 0: | |
204 arg_text = sigline[lidx+1:ridx] + ')' | |
1121 | 205 if len(arg_text) == 0: arg_text = ')' |
838 | 206 return arg_text |
207 | |
208 def get_completions(self,context,match): | |
209 dbg("get_completions('%s','%s')" % (context,match)) | |
210 stmt = '' | |
211 if context: stmt += str(context) | |
212 if match: stmt += str(match) | |
213 try: | |
214 result = None | |
215 all = {} | |
216 ridx = stmt.rfind('.') | |
217 if len(stmt) > 0 and stmt[-1] == '(': | |
218 result = eval(_sanitize(stmt[:-1]), self.compldict) | |
219 doc = result.__doc__ | |
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220 if doc is None: doc = '' |
1121 | 221 args = self.get_arguments(result) |
222 return [{'word':self._cleanstr(args),'info':self._cleanstr(doc)}] | |
838 | 223 elif ridx == -1: |
224 match = stmt | |
225 all = self.compldict | |
226 else: | |
227 match = stmt[ridx+1:] | |
228 stmt = _sanitize(stmt[:ridx]) | |
229 result = eval(stmt, self.compldict) | |
230 all = dir(result) | |
827 | 231 |
838 | 232 dbg("completing: stmt:%s" % stmt) |
233 completions = [] | |
234 | |
235 try: maindoc = result.__doc__ | |
236 except: maindoc = ' ' | |
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237 if maindoc is None: maindoc = ' ' |
838 | 238 for m in all: |
239 if m == "_PyCmplNoType": continue #this is internal | |
240 try: | |
241 dbg('possible completion: %s' % m) | |
242 if m.find(match) == 0: | |
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243 if result is None: inst = all[m] |
838 | 244 else: inst = getattr(result,m) |
245 try: doc = inst.__doc__ | |
246 except: doc = maindoc | |
247 typestr = str(inst) | |
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248 if doc is None or doc == '': doc = maindoc |
838 | 249 |
250 wrd = m[len(match):] | |
1121 | 251 c = {'word':wrd, 'abbr':m, 'info':self._cleanstr(doc)} |
838 | 252 if "function" in typestr: |
253 c['word'] += '(' | |
254 c['abbr'] += '(' + self._cleanstr(self.get_arguments(inst)) | |
255 elif "method" in typestr: | |
256 c['word'] += '(' | |
257 c['abbr'] += '(' + self._cleanstr(self.get_arguments(inst)) | |
258 elif "module" in typestr: | |
259 c['word'] += '.' | |
260 elif "class" in typestr: | |
261 c['word'] += '(' | |
262 c['abbr'] += '(' | |
263 completions.append(c) | |
264 except: | |
265 i = sys.exc_info() | |
266 dbg("inner completion: %s,%s [stmt='%s']" % (i[0],i[1],stmt)) | |
267 return completions | |
268 except: | |
269 i = sys.exc_info() | |
270 dbg("completion: %s,%s [stmt='%s']" % (i[0],i[1],stmt)) | |
271 return [] | |
272 | |
273 class Scope(object): | |
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274 def __init__(self,name,indent,docstr=''): |
838 | 275 self.subscopes = [] |
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276 self.docstr = docstr |
838 | 277 self.locals = [] |
278 self.parent = None | |
279 self.name = name | |
280 self.indent = indent | |
281 | |
282 def add(self,sub): | |
283 #print 'push scope: [%s@%s]' % (sub.name,sub.indent) | |
284 sub.parent = self | |
285 self.subscopes.append(sub) | |
286 return sub | |
827 | 287 |
838 | 288 def doc(self,str): |
289 """ Clean up a docstring """ | |
290 d = str.replace('\n',' ') | |
291 d = d.replace('\t',' ') | |
292 while d.find(' ') > -1: d = d.replace(' ',' ') | |
293 while d[0] in '"\'\t ': d = d[1:] | |
294 while d[-1] in '"\'\t ': d = d[:-1] | |
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295 dbg("Scope(%s)::docstr = %s" % (self,d)) |
838 | 296 self.docstr = d |
297 | |
298 def local(self,loc): | |
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299 self._checkexisting(loc) |
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300 self.locals.append(loc) |
838 | 301 |
302 def copy_decl(self,indent=0): | |
303 """ Copy a scope's declaration only, at the specified indent level - not local variables """ | |
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304 return Scope(self.name,indent,self.docstr) |
838 | 305 |
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306 def _checkexisting(self,test): |
838 | 307 "Convienance function... keep out duplicates" |
308 if test.find('=') > -1: | |
309 var = test.split('=')[0].strip() | |
310 for l in self.locals: | |
311 if l.find('=') > -1 and var == l.split('=')[0].strip(): | |
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312 self.locals.remove(l) |
827 | 313 |
838 | 314 def get_code(self): |
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315 str = "" |
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316 if len(self.docstr) > 0: str += '"""'+self.docstr+'"""\n' |
1121 | 317 for l in self.locals: |
318 if l.startswith('import'): str += l+'\n' | |
838 | 319 str += 'class _PyCmplNoType:\n def __getattr__(self,name):\n return None\n' |
320 for sub in self.subscopes: | |
321 str += sub.get_code() | |
1121 | 322 for l in self.locals: |
323 if not l.startswith('import'): str += l+'\n' | |
838 | 324 |
325 return str | |
326 | |
327 def pop(self,indent): | |
328 #print 'pop scope: [%s] to [%s]' % (self.indent,indent) | |
329 outer = self | |
330 while outer.parent != None and outer.indent >= indent: | |
331 outer = outer.parent | |
332 return outer | |
333 | |
334 def currentindent(self): | |
335 #print 'parse current indent: %s' % self.indent | |
336 return ' '*self.indent | |
337 | |
338 def childindent(self): | |
339 #print 'parse child indent: [%s]' % (self.indent+1) | |
340 return ' '*(self.indent+1) | |
341 | |
342 class Class(Scope): | |
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343 def __init__(self, name, supers, indent, docstr=''): |
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344 Scope.__init__(self,name,indent, docstr) |
838 | 345 self.supers = supers |
346 def copy_decl(self,indent=0): | |
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347 c = Class(self.name,self.supers,indent, self.docstr) |
838 | 348 for s in self.subscopes: |
349 c.add(s.copy_decl(indent+1)) | |
350 return c | |
351 def get_code(self): | |
352 str = '%sclass %s' % (self.currentindent(),self.name) | |
353 if len(self.supers) > 0: str += '(%s)' % ','.join(self.supers) | |
354 str += ':\n' | |
355 if len(self.docstr) > 0: str += self.childindent()+'"""'+self.docstr+'"""\n' | |
356 if len(self.subscopes) > 0: | |
357 for s in self.subscopes: str += s.get_code() | |
827 | 358 else: |
838 | 359 str += '%spass\n' % self.childindent() |
360 return str | |
361 | |
362 | |
363 class Function(Scope): | |
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364 def __init__(self, name, params, indent, docstr=''): |
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365 Scope.__init__(self,name,indent, docstr) |
838 | 366 self.params = params |
367 def copy_decl(self,indent=0): | |
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368 return Function(self.name,self.params,indent, self.docstr) |
838 | 369 def get_code(self): |
370 str = "%sdef %s(%s):\n" % \ | |
371 (self.currentindent(),self.name,','.join(self.params)) | |
372 if len(self.docstr) > 0: str += self.childindent()+'"""'+self.docstr+'"""\n' | |
373 str += "%spass\n" % self.childindent() | |
374 return str | |
375 | |
376 class PyParser: | |
377 def __init__(self): | |
378 self.top = Scope('global',0) | |
379 self.scope = self.top | |
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380 self.parserline = 0 |
838 | 381 |
382 def _parsedotname(self,pre=None): | |
383 #returns (dottedname, nexttoken) | |
384 name = [] | |
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385 if pre is None: |
838 | 386 tokentype, token, indent = self.next() |
387 if tokentype != NAME and token != '*': | |
388 return ('', token) | |
389 else: token = pre | |
390 name.append(token) | |
391 while True: | |
392 tokentype, token, indent = self.next() | |
393 if token != '.': break | |
394 tokentype, token, indent = self.next() | |
395 if tokentype != NAME: break | |
396 name.append(token) | |
397 return (".".join(name), token) | |
398 | |
399 def _parseimportlist(self): | |
400 imports = [] | |
401 while True: | |
402 name, token = self._parsedotname() | |
403 if not name: break | |
404 name2 = '' | |
405 if token == 'as': name2, token = self._parsedotname() | |
406 imports.append((name, name2)) | |
407 while token != "," and "\n" not in token: | |
408 tokentype, token, indent = self.next() | |
409 if token != ",": break | |
410 return imports | |
411 | |
412 def _parenparse(self): | |
413 name = '' | |
414 names = [] | |
415 level = 1 | |
416 while True: | |
417 tokentype, token, indent = self.next() | |
418 if token in (')', ',') and level == 1: | |
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419 if '=' not in name: name = name.replace(' ', '') |
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420 names.append(name.strip()) |
838 | 421 name = '' |
422 if token == '(': | |
423 level += 1 | |
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424 name += "(" |
838 | 425 elif token == ')': |
426 level -= 1 | |
427 if level == 0: break | |
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428 else: name += ")" |
838 | 429 elif token == ',' and level == 1: |
430 pass | |
431 else: | |
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432 name += "%s " % str(token) |
838 | 433 return names |
434 | |
435 def _parsefunction(self,indent): | |
436 self.scope=self.scope.pop(indent) | |
437 tokentype, fname, ind = self.next() | |
438 if tokentype != NAME: return None | |
439 | |
440 tokentype, open, ind = self.next() | |
441 if open != '(': return None | |
442 params=self._parenparse() | |
443 | |
444 tokentype, colon, ind = self.next() | |
445 if colon != ':': return None | |
446 | |
447 return Function(fname,params,indent) | |
827 | 448 |
838 | 449 def _parseclass(self,indent): |
450 self.scope=self.scope.pop(indent) | |
451 tokentype, cname, ind = self.next() | |
452 if tokentype != NAME: return None | |
453 | |
454 super = [] | |
455 tokentype, next, ind = self.next() | |
456 if next == '(': | |
457 super=self._parenparse() | |
458 elif next != ':': return None | |
459 | |
460 return Class(cname,super,indent) | |
827 | 461 |
838 | 462 def _parseassignment(self): |
463 assign='' | |
464 tokentype, token, indent = self.next() | |
465 if tokentype == tokenize.STRING or token == 'str': | |
466 return '""' | |
1121 | 467 elif token == '(' or token == 'tuple': |
468 return '()' | |
838 | 469 elif token == '[' or token == 'list': |
470 return '[]' | |
471 elif token == '{' or token == 'dict': | |
472 return '{}' | |
473 elif tokentype == tokenize.NUMBER: | |
474 return '0' | |
475 elif token == 'open' or token == 'file': | |
476 return 'file' | |
477 elif token == 'None': | |
478 return '_PyCmplNoType()' | |
479 elif token == 'type': | |
480 return 'type(_PyCmplNoType)' #only for method resolution | |
481 else: | |
482 assign += token | |
483 level = 0 | |
484 while True: | |
485 tokentype, token, indent = self.next() | |
486 if token in ('(','{','['): | |
487 level += 1 | |
488 elif token in (']','}',')'): | |
489 level -= 1 | |
490 if level == 0: break | |
491 elif level == 0: | |
492 if token in (';','\n'): break | |
493 assign += token | |
494 return "%s" % assign | |
827 | 495 |
838 | 496 def next(self): |
497 type, token, (lineno, indent), end, self.parserline = self.gen.next() | |
498 if lineno == self.curline: | |
499 #print 'line found [%s] scope=%s' % (line.replace('\n',''),self.scope.name) | |
500 self.currentscope = self.scope | |
501 return (type, token, indent) | |
502 | |
503 def _adjustvisibility(self): | |
504 newscope = Scope('result',0) | |
505 scp = self.currentscope | |
506 while scp != None: | |
507 if type(scp) == Function: | |
508 slice = 0 | |
509 #Handle 'self' params | |
510 if scp.parent != None and type(scp.parent) == Class: | |
511 slice = 1 | |
512 newscope.local('%s = %s' % (scp.params[0],scp.parent.name)) | |
513 for p in scp.params[slice:]: | |
514 i = p.find('=') | |
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515 if len(p) == 0: continue |
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516 pvar = '' |
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517 ptype = '' |
838 | 518 if i == -1: |
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519 pvar = p |
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520 ptype = '_PyCmplNoType()' |
838 | 521 else: |
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522 pvar = p[:i] |
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523 ptype = _sanitize(p[i+1:]) |
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524 if pvar.startswith('**'): |
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525 pvar = pvar[2:] |
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526 ptype = '{}' |
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527 elif pvar.startswith('*'): |
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528 pvar = pvar[1:] |
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529 ptype = '[]' |
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530 |
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531 newscope.local('%s = %s' % (pvar,ptype)) |
838 | 532 |
533 for s in scp.subscopes: | |
534 ns = s.copy_decl(0) | |
535 newscope.add(ns) | |
536 for l in scp.locals: newscope.local(l) | |
537 scp = scp.parent | |
538 | |
539 self.currentscope = newscope | |
540 return self.currentscope | |
541 | |
542 #p.parse(vim.current.buffer[:],vim.eval("line('.')")) | |
543 def parse(self,text,curline=0): | |
544 self.curline = int(curline) | |
545 buf = cStringIO.StringIO(''.join(text) + '\n') | |
546 self.gen = tokenize.generate_tokens(buf.readline) | |
547 self.currentscope = self.scope | |
548 | |
827 | 549 try: |
838 | 550 freshscope=True |
551 while True: | |
552 tokentype, token, indent = self.next() | |
1121 | 553 #dbg( 'main: token=[%s] indent=[%s]' % (token,indent)) |
827 | 554 |
1121 | 555 if tokentype == DEDENT or token == "pass": |
838 | 556 self.scope = self.scope.pop(indent) |
557 elif token == 'def': | |
558 func = self._parsefunction(indent) | |
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559 if func is None: |
838 | 560 print "function: syntax error..." |
561 continue | |
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562 dbg("new scope: function") |
838 | 563 freshscope = True |
564 self.scope = self.scope.add(func) | |
565 elif token == 'class': | |
566 cls = self._parseclass(indent) | |
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567 if cls is None: |
838 | 568 print "class: syntax error..." |
569 continue | |
570 freshscope = True | |
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571 dbg("new scope: class") |
838 | 572 self.scope = self.scope.add(cls) |
573 | |
574 elif token == 'import': | |
575 imports = self._parseimportlist() | |
576 for mod, alias in imports: | |
577 loc = "import %s" % mod | |
578 if len(alias) > 0: loc += " as %s" % alias | |
579 self.scope.local(loc) | |
580 freshscope = False | |
581 elif token == 'from': | |
582 mod, token = self._parsedotname() | |
583 if not mod or token != "import": | |
584 print "from: syntax error..." | |
585 continue | |
586 names = self._parseimportlist() | |
587 for name, alias in names: | |
588 loc = "from %s import %s" % (mod,name) | |
589 if len(alias) > 0: loc += " as %s" % alias | |
590 self.scope.local(loc) | |
591 freshscope = False | |
592 elif tokentype == STRING: | |
593 if freshscope: self.scope.doc(token) | |
594 elif tokentype == NAME: | |
595 name,token = self._parsedotname(token) | |
596 if token == '=': | |
597 stmt = self._parseassignment() | |
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598 dbg("parseassignment: %s = %s" % (name, stmt)) |
838 | 599 if stmt != None: |
600 self.scope.local("%s = %s" % (name,stmt)) | |
601 freshscope = False | |
602 except StopIteration: #thrown on EOF | |
827 | 603 pass |
838 | 604 except: |
605 dbg("parse error: %s, %s @ %s" % | |
606 (sys.exc_info()[0], sys.exc_info()[1], self.parserline)) | |
607 return self._adjustvisibility() | |
827 | 608 |
838 | 609 def _sanitize(str): |
610 val = '' | |
827 | 611 level = 0 |
838 | 612 for c in str: |
613 if c in ('(','{','['): | |
827 | 614 level += 1 |
838 | 615 elif c in (']','}',')'): |
827 | 616 level -= 1 |
617 elif level == 0: | |
838 | 618 val += c |
619 return val | |
827 | 620 |
621 sys.path.extend(['.','..']) | |
622 PYTHONEOF | |
623 endfunction | |
624 | |
625 call s:DefPython() | |
626 " vim: set et ts=4: |