643 lines
23 KiB
Python
643 lines
23 KiB
Python
"""
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The Python parts of the Jedi library for VIM. It is mostly about communicating
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with VIM.
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"""
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import traceback # for exception output
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import re
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import os
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import sys
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from shlex import split as shsplit
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try:
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from itertools import zip_longest
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except ImportError:
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from itertools import izip_longest as zip_longest # Python 2
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is_py3 = sys.version_info[0] >= 3
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if is_py3:
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unicode = str
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class PythonToVimStr(unicode):
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""" Vim has a different string implementation of single quotes """
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__slots__ = []
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def __new__(cls, obj, encoding='UTF-8'):
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if is_py3 or isinstance(obj, unicode):
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return unicode.__new__(cls, obj)
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else:
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return unicode.__new__(cls, obj, encoding)
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def __repr__(self):
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# this is totally stupid and makes no sense but vim/python unicode
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# support is pretty bad. don't ask how I came up with this... It just
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# works...
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# It seems to be related to that bug: http://bugs.python.org/issue5876
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if unicode is str:
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s = self
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else:
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s = self.encode('UTF-8')
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return '"%s"' % s.replace('\\', '\\\\').replace('"', r'\"')
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class VimError(Exception):
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def __init__(self, message, throwpoint, executing):
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super(type(self), self).__init__(message)
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self.message = message
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self.throwpoint = throwpoint
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self.executing = executing
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def __str__(self):
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return self.message + '; created by: ' + repr(self.executing)
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def _catch_exception(string, is_eval):
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"""
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Interface between vim and python calls back to it.
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Necessary, because the exact error message is not given by `vim.error`.
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"""
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e = 'jedi#_vim_exceptions(%s, %s)'
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result = vim.eval(e % (repr(PythonToVimStr(string, 'UTF-8')), is_eval))
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if 'exception' in result:
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raise VimError(result['exception'], result['throwpoint'], string)
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return result['result']
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def vim_command(string):
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_catch_exception(string, 0)
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def vim_eval(string):
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return _catch_exception(string, 1)
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def no_jedi_warning():
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vim.command('echohl WarningMsg'
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'| echom "Please install Jedi if you want to use jedi-vim."'
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'| echohl None')
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def echo_highlight(msg):
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vim_command('echohl WarningMsg | echom "{}" | echohl None'.format(
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msg.replace('"', '\\"')))
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import vim
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try:
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import jedi
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except ImportError:
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no_jedi_warning()
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jedi = None
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else:
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try:
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version = jedi.__version__
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except Exception as e: # e.g. AttributeError
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echo_highlight("Could not load jedi python module: {}".format(e))
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jedi = None
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else:
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if isinstance(version, str):
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# the normal use case, now.
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from jedi import utils
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version = utils.version_info()
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if version < (0, 7):
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echo_highlight('Please update your Jedi version, it is too old.')
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def catch_and_print_exceptions(func):
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def wrapper(*args, **kwargs):
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try:
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return func(*args, **kwargs)
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except (Exception, vim.error):
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print(traceback.format_exc())
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return None
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return wrapper
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def _check_jedi_availability(show_error=False):
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def func_receiver(func):
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def wrapper(*args, **kwargs):
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if jedi is None:
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if show_error:
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no_jedi_warning()
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return
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else:
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return func(*args, **kwargs)
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return wrapper
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return func_receiver
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@catch_and_print_exceptions
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def get_script(source=None, column=None):
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jedi.settings.additional_dynamic_modules = \
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[b.name for b in vim.buffers if b.name is not None and b.name.endswith('.py')]
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if source is None:
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source = '\n'.join(vim.current.buffer)
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row = vim.current.window.cursor[0]
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if column is None:
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column = vim.current.window.cursor[1]
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buf_path = vim.current.buffer.name
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encoding = vim_eval('&encoding') or 'latin1'
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return jedi.Script(source, row, column, buf_path, encoding)
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@_check_jedi_availability(show_error=False)
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@catch_and_print_exceptions
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def completions():
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row, column = vim.current.window.cursor
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# Clear call signatures in the buffer so they aren't seen by the completer.
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# Call signatures in the command line can stay.
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if vim_eval("g:jedi#show_call_signatures") == '1':
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clear_call_signatures()
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if vim.eval('a:findstart') == '1':
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count = 0
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for char in reversed(vim.current.line[:column]):
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if not re.match('[\w\d]', char):
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break
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count += 1
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vim.command('return %i' % (column - count))
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else:
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base = vim.eval('a:base')
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source = ''
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for i, line in enumerate(vim.current.buffer):
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# enter this path again, otherwise source would be incomplete
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if i == row - 1:
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source += line[:column] + base + line[column:]
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else:
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source += line
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source += '\n'
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# here again hacks, because jedi has a different interface than vim
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column += len(base)
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try:
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script = get_script(source=source, column=column)
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completions = script.completions()
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signatures = script.call_signatures()
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out = []
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for c in completions:
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d = dict(word=PythonToVimStr(c.name[:len(base)] + c.complete),
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abbr=PythonToVimStr(c.name),
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# stuff directly behind the completion
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menu=PythonToVimStr(c.description),
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info=PythonToVimStr(c.docstring()), # docstr
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icase=1, # case insensitive
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dup=1 # allow duplicates (maybe later remove this)
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)
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out.append(d)
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strout = str(out)
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except Exception:
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# print to stdout, will be in :messages
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print(traceback.format_exc())
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strout = ''
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completions = []
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signatures = []
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show_call_signatures(signatures)
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vim.command('return ' + strout)
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@_check_jedi_availability(show_error=True)
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@catch_and_print_exceptions
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def goto(mode="goto", no_output=False):
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"""
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:param str mode: "related_name", "definition", "assignment", "auto"
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:return: list of definitions/assignments
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:rtype: list
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"""
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script = get_script()
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try:
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if mode == "goto":
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definitions = [x for x in script.goto_definitions()
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if not x.in_builtin_module()]
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if not definitions:
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definitions = script.goto_assignments()
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elif mode == "related_name":
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definitions = script.usages()
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elif mode == "definition":
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definitions = script.goto_definitions()
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elif mode == "assignment":
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definitions = script.goto_assignments()
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except jedi.NotFoundError:
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echo_highlight("Cannot follow nothing. Put your cursor on a valid name.")
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definitions = []
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else:
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if no_output:
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return definitions
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if not definitions:
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echo_highlight("Couldn't find any definitions for this.")
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elif len(definitions) == 1 and mode != "related_name":
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# just add some mark to add the current position to the jumplist.
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# this is ugly, because it overrides the mark for '`', so if anyone
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# has a better idea, let me know.
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vim_command('normal! m`')
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d = list(definitions)[0]
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if d.in_builtin_module():
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if d.is_keyword:
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echo_highlight("Cannot get the definition of Python keywords.")
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else:
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echo_highlight("Builtin modules cannot be displayed (%s)."
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% d.desc_with_module)
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else:
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if d.module_path != vim.current.buffer.name:
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result = new_buffer(d.module_path)
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if not result:
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return []
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vim.current.window.cursor = d.line, d.column
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else:
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# multiple solutions
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lst = []
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for d in definitions:
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if d.in_builtin_module():
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lst.append(dict(text=PythonToVimStr('Builtin ' + d.description)))
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else:
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lst.append(dict(filename=PythonToVimStr(d.module_path),
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lnum=d.line, col=d.column + 1,
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text=PythonToVimStr(d.description)))
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vim_eval('setqflist(%s)' % repr(lst))
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vim_eval('jedi#add_goto_window(' + str(len(lst)) + ')')
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return definitions
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@_check_jedi_availability(show_error=True)
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@catch_and_print_exceptions
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def show_documentation():
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script = get_script()
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try:
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definitions = script.goto_definitions()
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except jedi.NotFoundError:
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definitions = []
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except Exception:
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# print to stdout, will be in :messages
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definitions = []
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print("Exception, this shouldn't happen.")
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print(traceback.format_exc())
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if not definitions:
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echo_highlight('No documentation found for that.')
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vim.command('return')
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else:
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docs = ['Docstring for %s\n%s\n%s' % (d.desc_with_module, '=' * 40, d.docstring())
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if d.docstring() else '|No Docstring for %s|' % d for d in definitions]
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text = ('\n' + '-' * 79 + '\n').join(docs)
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vim.command('let l:doc = %s' % repr(PythonToVimStr(text)))
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vim.command('let l:doc_lines = %s' % len(text.split('\n')))
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return True
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@catch_and_print_exceptions
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def clear_call_signatures():
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# Check if using command line call signatures
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if vim_eval("g:jedi#show_call_signatures") == '2':
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vim_command('echo ""')
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return
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cursor = vim.current.window.cursor
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e = vim_eval('g:jedi#call_signature_escape')
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# We need two turns here to search and replace certain lines:
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# 1. Search for a line with a call signature and save the appended
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# characters
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# 2. Actually replace the line and redo the status quo.
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py_regex = r'%sjedi=([0-9]+), (.*?)%s.*?%sjedi%s'.replace('%s', e)
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for i, line in enumerate(vim.current.buffer):
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match = re.search(py_regex, line)
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if match is not None:
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# Some signs were added to minimize syntax changes due to call
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# signatures. We have to remove them again. The number of them is
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# specified in `match.group(1)`.
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after = line[match.end() + int(match.group(1)):]
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line = line[:match.start()] + match.group(2) + after
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vim.current.buffer[i] = line
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vim.current.window.cursor = cursor
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@_check_jedi_availability(show_error=False)
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@catch_and_print_exceptions
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def show_call_signatures(signatures=()):
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if vim_eval("has('conceal') && g:jedi#show_call_signatures") == '0':
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return
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if signatures == ():
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signatures = get_script().call_signatures()
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clear_call_signatures()
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if not signatures:
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return
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if vim_eval("g:jedi#show_call_signatures") == '2':
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return cmdline_call_signatures(signatures)
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for i, signature in enumerate(signatures):
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line, column = signature.bracket_start
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# signatures are listed above each other
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line_to_replace = line - i - 1
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# because there's a space before the bracket
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insert_column = column - 1
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if insert_column < 0 or line_to_replace <= 0:
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# Edge cases, when the call signature has no space on the screen.
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break
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# TODO check if completion menu is above or below
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line = vim_eval("getline(%s)" % line_to_replace)
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params = [p.description.replace('\n', '') for p in signature.params]
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try:
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# *_*PLACEHOLDER*_* makes something fat. See after/syntax file.
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params[signature.index] = '*_*%s*_*' % params[signature.index]
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except (IndexError, TypeError):
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pass
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# This stuff is reaaaaally a hack! I cannot stress enough, that
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# this is a stupid solution. But there is really no other yet.
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# There is no possibility in VIM to draw on the screen, but there
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# will be one (see :help todo Patch to access screen under Python.
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# (Marko Mahni, 2010 Jul 18))
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text = " (%s) " % ', '.join(params)
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text = ' ' * (insert_column - len(line)) + text
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end_column = insert_column + len(text) - 2 # -2 due to bold symbols
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# Need to decode it with utf8, because vim returns always a python 2
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# string even if it is unicode.
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e = vim_eval('g:jedi#call_signature_escape')
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if hasattr(e, 'decode'):
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e = e.decode('UTF-8')
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# replace line before with cursor
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regex = "xjedi=%sx%sxjedix".replace('x', e)
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prefix, replace = line[:insert_column], line[insert_column:end_column]
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# Check the replace stuff for strings, to append them
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# (don't want to break the syntax)
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regex_quotes = r'''\\*["']+'''
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# `add` are all the quotation marks.
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# join them with a space to avoid producing '''
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add = ' '.join(re.findall(regex_quotes, replace))
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# search backwards
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if add and replace[0] in ['"', "'"]:
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a = re.search(regex_quotes + '$', prefix)
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add = ('' if a is None else a.group(0)) + add
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tup = '%s, %s' % (len(add), replace)
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repl = prefix + (regex % (tup, text)) + add + line[end_column:]
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vim_eval('setline(%s, %s)' % (line_to_replace, repr(PythonToVimStr(repl))))
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@catch_and_print_exceptions
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def cmdline_call_signatures(signatures):
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def get_params(s):
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return [p.description.replace('\n', '') for p in s.params]
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if len(signatures) > 1:
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params = zip_longest(*map(get_params, signatures), fillvalue='_')
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params = ['(' + ', '.join(p) + ')' for p in params]
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else:
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params = get_params(signatures[0])
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text = ', '.join(params).replace('"', '\\"').replace(r'\n', r'\\n')
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# Allow 12 characters for ruler/showcmd - setting noruler/noshowcmd
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# here causes incorrect undo history
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max_msg_len = int(vim_eval('&columns')) - 12
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max_num_spaces = (max_msg_len - len(signatures[0].call_name)
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- len(text) - 2) # 2 accounts for parentheses
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if max_num_spaces < 0:
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return # No room for the message
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_, column = signatures[0].bracket_start
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num_spaces = min(int(vim_eval('g:jedi#first_col +'
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'wincol() - col(".")')) +
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column - len(signatures[0].call_name),
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max_num_spaces)
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spaces = ' ' * num_spaces
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try:
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index = [s.index for s in signatures if isinstance(s.index, int)][0]
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escaped_param = params[index].replace(r'\n', r'\\n')
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left = text.index(escaped_param)
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right = left + len(escaped_param)
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vim_command(' echon "%s" | '
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'echohl Function | echon "%s" | '
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'echohl None | echon "(" | '
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'echohl jediFunction | echon "%s" | '
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'echohl jediFat | echon "%s" | '
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'echohl jediFunction | echon "%s" | '
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'echohl None | echon ")"'
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% (spaces, signatures[0].call_name, text[:left],
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text[left:right], text[right:]))
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except (TypeError, IndexError):
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vim_command(' echon "%s" | '
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'echohl Function | echon "%s" | '
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'echohl None | echon "(" | '
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'echohl jediFunction | echon "%s" | '
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'echohl None | echon ")"'
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% (spaces, signatures[0].call_name, text))
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@_check_jedi_availability(show_error=True)
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@catch_and_print_exceptions
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def rename():
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if not int(vim.eval('a:0')):
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vim_command('augroup jedi_rename')
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vim_command('autocmd InsertLeave <buffer> call jedi#rename(1)')
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vim_command('augroup END')
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vim_command("let s:jedi_replace_orig = expand('<cword>')")
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vim_command('normal! diw')
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vim_command("let s:jedi_changedtick = b:changedtick")
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vim_command('startinsert')
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else:
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# Remove autocommand.
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vim_command('autocmd! jedi_rename InsertLeave')
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# Get replacement, if there is something on the cursor.
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# This won't be the case when the user ends insert mode right away,
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# and `<cword>` would pick up the nearest word instead.
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if vim_eval('getline(".")[getpos(".")[2]-1]') != ' ':
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replace = vim_eval("expand('<cword>')")
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else:
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replace = None
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cursor = vim.current.window.cursor
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# Undo new word, but only if something was changed, which is not the
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# case when ending insert mode right away.
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if vim_eval('b:changedtick != s:jedi_changedtick') == '1':
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vim_command('normal! u') # Undo new word.
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vim_command('normal! u') # Undo diw.
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vim.current.window.cursor = cursor
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if replace:
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return do_rename(replace)
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def rename_visual():
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replace = vim.eval('input("Rename to: ")')
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orig = vim.eval('getline(".")[(getpos("\'<")[2]-1):getpos("\'>")[2]]')
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do_rename(replace, orig)
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def do_rename(replace, orig=None):
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if not len(replace):
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echo_highlight('No rename possible without name.')
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return
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if orig is None:
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orig = vim_eval('s:jedi_replace_orig')
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# Save original window / tab.
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saved_tab = int(vim_eval('tabpagenr()'))
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saved_win = int(vim_eval('winnr()'))
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temp_rename = goto(mode="related_name", no_output=True)
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# Sort the whole thing reverse (positions at the end of the line
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# must be first, because they move the stuff before the position).
|
|
temp_rename = sorted(temp_rename, reverse=True,
|
|
key=lambda x: (x.module_path, x.start_pos))
|
|
buffers = set()
|
|
for r in temp_rename:
|
|
if r.in_builtin_module():
|
|
continue
|
|
|
|
if os.path.abspath(vim.current.buffer.name) != r.module_path:
|
|
result = new_buffer(r.module_path)
|
|
if not result:
|
|
echo_highlight("Jedi-vim: failed to create buffer window for {}!".format(r.module_path))
|
|
continue
|
|
|
|
buffers.add(vim.current.buffer.name)
|
|
|
|
# Save view.
|
|
saved_view = vim_eval('string(winsaveview())')
|
|
|
|
# Replace original word.
|
|
vim.current.window.cursor = r.start_pos
|
|
vim_command('normal! c{:d}l{}'.format(len(orig), replace))
|
|
|
|
# Restore view.
|
|
vim_command('call winrestview(%s)' % saved_view)
|
|
|
|
# Restore previous tab and window.
|
|
vim_command('tabnext {:d}'.format(saved_tab))
|
|
vim_command('{:d}wincmd w'.format(saved_win))
|
|
|
|
if len(buffers) > 1:
|
|
echo_highlight('Jedi did {:d} renames in {:d} buffers!'.format(
|
|
len(temp_rename), len(buffers)))
|
|
else:
|
|
echo_highlight('Jedi did {:d} renames!'.format(len(temp_rename)))
|
|
|
|
|
|
@_check_jedi_availability(show_error=True)
|
|
@catch_and_print_exceptions
|
|
def py_import():
|
|
# args are the same as for the :edit command
|
|
args = shsplit(vim.eval('a:args'))
|
|
import_path = args.pop()
|
|
text = 'import %s' % import_path
|
|
scr = jedi.Script(text, 1, len(text), '')
|
|
try:
|
|
completion = scr.goto_assignments()[0]
|
|
except IndexError:
|
|
echo_highlight('Cannot find %s in sys.path!' % import_path)
|
|
else:
|
|
if completion.in_builtin_module():
|
|
echo_highlight('%s is a builtin module.' % import_path)
|
|
else:
|
|
cmd_args = ' '.join([a.replace(' ', '\\ ') for a in args])
|
|
new_buffer(completion.module_path, cmd_args)
|
|
|
|
|
|
@catch_and_print_exceptions
|
|
def py_import_completions():
|
|
argl = vim.eval('a:argl')
|
|
try:
|
|
import jedi
|
|
except ImportError:
|
|
print('Pyimport completion requires jedi module: https://github.com/davidhalter/jedi')
|
|
comps = []
|
|
else:
|
|
text = 'import %s' % argl
|
|
script = jedi.Script(text, 1, len(text), '')
|
|
comps = ['%s%s' % (argl, c.complete) for c in script.completions()]
|
|
vim.command("return '%s'" % '\n'.join(comps))
|
|
|
|
|
|
@catch_and_print_exceptions
|
|
def new_buffer(path, options=''):
|
|
# options are what you can to edit the edit options
|
|
if vim_eval('g:jedi#use_tabs_not_buffers') == '1':
|
|
_tabnew(path, options)
|
|
elif not vim_eval('g:jedi#use_splits_not_buffers') == '1':
|
|
user_split_option = vim_eval('g:jedi#use_splits_not_buffers')
|
|
split_options = {
|
|
'top': 'topleft split',
|
|
'left': 'topleft vsplit',
|
|
'right': 'botright vsplit',
|
|
'bottom': 'botright split',
|
|
'winwidth': 'vs'
|
|
}
|
|
if user_split_option == 'winwidth' and vim.current.window.width <= 2 * int(vim_eval("&textwidth ? &textwidth : 80")):
|
|
split_options['winwidth'] = 'sp'
|
|
if user_split_option not in split_options:
|
|
print('g:jedi#use_splits_not_buffers value is not correct, valid options are: %s' % ','.join(split_options.keys()))
|
|
else:
|
|
vim_command(split_options[user_split_option] + " %s" % path)
|
|
else:
|
|
if vim_eval("!&hidden && &modified") == '1':
|
|
if vim_eval("bufname('%')") is None:
|
|
echo_highlight('Cannot open a new buffer, use `:set hidden` or save your buffer')
|
|
return False
|
|
else:
|
|
vim_command('w')
|
|
vim_command('edit %s %s' % (options, escape_file_path(path)))
|
|
# sometimes syntax is being disabled and the filetype not set.
|
|
if vim_eval('!exists("g:syntax_on")') == '1':
|
|
vim_command('syntax enable')
|
|
if vim_eval("&filetype != 'python'") == '1':
|
|
vim_command('set filetype=python')
|
|
return True
|
|
|
|
|
|
@catch_and_print_exceptions
|
|
def _tabnew(path, options=''):
|
|
"""
|
|
Open a file in a new tab or switch to an existing one.
|
|
|
|
:param options: `:tabnew` options, read vim help.
|
|
"""
|
|
path = os.path.abspath(path)
|
|
if vim_eval('has("gui")') == '1':
|
|
vim_command('tab drop %s %s' % (options, escape_file_path(path)))
|
|
return
|
|
|
|
for tab_nr in range(int(vim_eval("tabpagenr('$')"))):
|
|
for buf_nr in vim_eval("tabpagebuflist(%i + 1)" % tab_nr):
|
|
buf_nr = int(buf_nr) - 1
|
|
try:
|
|
buf_path = vim.buffers[buf_nr].name
|
|
except (LookupError, ValueError):
|
|
# Just do good old asking for forgiveness.
|
|
# don't know why this happens :-)
|
|
pass
|
|
else:
|
|
if buf_path == path:
|
|
# tab exists, just switch to that tab
|
|
vim_command('tabfirst | tabnext %i' % (tab_nr + 1))
|
|
# Goto the buffer's window.
|
|
vim_command('exec bufwinnr(%i) . " wincmd w"' % (buf_nr + 1))
|
|
break
|
|
else:
|
|
continue
|
|
break
|
|
else:
|
|
# tab doesn't exist, add a new one.
|
|
vim_command('tabnew %s' % escape_file_path(path))
|
|
|
|
|
|
def escape_file_path(path):
|
|
return path.replace(' ', r'\ ')
|
|
|
|
|
|
def print_to_stdout(level, str_out):
|
|
print(str_out)
|