104 lines
4.3 KiB
Python
104 lines
4.3 KiB
Python
#=============================================================================
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# FILE: racer.py
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# AUTHOR: Shougo Matsushita <Shougo.Matsu at gmail.com>
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# License: MIT license {{{
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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# }}}
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#=============================================================================
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import re
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import os
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import subprocess
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from .base import Base
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class Source(Base):
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def __init__(self, vim):
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Base.__init__(self, vim)
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self.name = 'racer'
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self.mark = '[racer]'
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self.filetypes = ['rust']
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self.input_pattern = r'(\.|::)\w*'
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self.__executable_racer = self.vim.funcs.executable(
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self.vim.eval('g:racer_cmd'))
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self.__racer = self.vim.eval('g:racer_cmd')
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self.__encoding = self.vim.eval('&encoding')
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def get_complete_position(self, context):
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if not self.__executable_racer:
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return -1
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results = self.get_results('prefix', self.vim.funcs.col('.'))
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if not results:
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return -1
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prefixline = results[0]
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return int(prefixline[7:].split(',')[0])
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def gather_candidates(self, context):
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typeMap = {
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'Struct': 's', 'Module': 'M', 'Function': 'f',
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'Crate': 'C', 'Let': 'v', 'StructField': 'm',
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'Impl': 'i', 'Enum': 'e', 'EnumVariant': 'E',
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'Type': 't', 'FnArg': 'v', 'Trait': 'T'
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}
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candidates = []
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insert_paren = int(self.vim.eval('g:racer_insert_paren'))
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for line in [l[6:] for l
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in self.get_results('complete-with-snippet',
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context['complete_position'] + 1)
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if l.startswith('MATCH')]:
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completions = line.split(';', 6)
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kind = typeMap[completions[5]]
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completion = { 'kind': kind, 'word': completions[0], 'dup': 1 }
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if kind == 'f': # function
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completion['menu'] = completions[6].replace(
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'pub ', '').replace('fn ', '').rstrip('{')
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if ' where ' in completion['menu'] or completion[
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'menu'].endswith(' where') :
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where = completion['menu'].rindex(' where')
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completion['menu'] = completion['menu'][: where]
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if insert_paren:
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completion['abbr'] = completions[0]
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completion['word'] += '('
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elif kind == 's' : # struct
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completion['menu'] = completions[6].replace(
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'pub ', '').replace( 'struct ', '').rstrip('{')
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candidates.append(completion)
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return candidates
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def get_results(self, command, col):
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temp = self.vim.funcs.tempname()
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with open(temp, 'w') as f:
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for l in self.vim.current.buffer:
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f.write(l + "\n")
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try:
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results = subprocess.check_output([
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self.__racer, command,
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str(self.vim.funcs.line('.')),
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str(col - 1),
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temp
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]).decode(self.__encoding).splitlines()
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except subprocess.CalledProcessError:
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return []
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finally:
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os.remove(temp)
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return results
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