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" Copyright 2011 The Go Authors. All rights reserved.
" Use of this source code is governed by a BSD-style
" license that can be found in the LICENSE file.
"
" This file provides a utility function that performs auto-completion of
" package names, for use by other commands.
let s:goos = $GOOS
let s:goarch = $GOARCH
if len(s:goos) == 0
if exists('g:golang_goos')
let s:goos = g:golang_goos
elseif has('win32') || has('win64')
let s:goos = 'windows'
elseif has('macunix')
let s:goos = 'darwin'
else
let s:goos = '*'
endif
endif
if len(s:goarch) == 0
if exists('g:golang_goarch')
let s:goarch = g:golang_goarch
else
let s:goarch = '*'
endif
endif
function! go#complete#PackageMembers(package, member)
silent! let content = system('godoc ' . a:package)
if v:shell_error || !len(content)
return []
endif
let lines = filter(split(content, "\n"),"v:val !~ '^\\s\\+$'")
try
let mx1 = '^\s\+\(\S+\)\s\+=\s\+.*'
let mx2 = '^\%(const\|var\|type\|func\) \([A-Z][^ (]\+\).*'
let candidates =
\ map(filter(copy(lines), 'v:val =~ mx1'), 'substitute(v:val, mx1, "\\1", "")')
\ + map(filter(copy(lines), 'v:val =~ mx2'), 'substitute(v:val, mx2, "\\1", "")')
return filter(candidates, '!stridx(v:val, a:member)')
catch
return []
endtry
endfunction
function! go#complete#Package(ArgLead, CmdLine, CursorPos)
let dirs = []
let words = split(a:CmdLine, '\s\+', 1)
if len(words) > 2
" Complete package members
return go#complete#PackageMembers(words[1], words[2])
endif
if executable('go')
let goroot = substitute(system('go env GOROOT'), '\n', '', 'g')
if v:shell_error
echomsg '\'go env GOROOT\' failed'
endif
else
let goroot = $GOROOT
endif
if len(goroot) != 0 && isdirectory(goroot)
let dirs += [goroot]
endif
let pathsep = ':'
if s:goos == 'windows'
let pathsep = ';'
endif
let workspaces = split($GOPATH, pathsep)
if workspaces != []
let dirs += workspaces
endif
if len(dirs) == 0
" should not happen
return []
endif
let ret = {}
for dir in dirs
" this may expand to multiple lines
let root = split(expand(dir . '/pkg/' . s:goos . '_' . s:goarch), "\n")
call add(root, expand(dir . '/src'))
for r in root
for i in split(globpath(r, a:ArgLead.'*'), "\n")
if isdirectory(i)
let i .= '/'
elseif i !~ '\.a$'
continue
endif
let i = substitute(substitute(i[len(r)+1:], '[\\]', '/', 'g'), '\.a$', '', 'g')
let ret[i] = i
endfor
endfor
endfor
return sort(keys(ret))
endfunction
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