251 lines
7 KiB
VimL
251 lines
7 KiB
VimL
let s:toggle = 0
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" Buffer creates a new cover profile with 'go test -coverprofile' and changes
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" teh current buffers highlighting to show covered and uncovered sections of
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" the code. If run again it clears the annotation
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function! go#coverage#Buffer(bang, ...)
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if s:toggle
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call go#coverage#Clear()
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return
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endif
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let s:toggle = 1
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let l:tmpname=tempname()
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let args = [a:bang, 0, "-coverprofile", l:tmpname]
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if a:0
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call extend(args, a:000)
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endif
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let disabled_term = 0
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if get(g:, 'go_term_enabled')
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let disabled_term = 1
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let g:go_term_enabled = 0
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endif
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let id = call('go#cmd#Test', args)
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if disabled_term
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let g:go_term_enabled = 1
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endif
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if has('nvim')
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call go#jobcontrol#AddHandler(function('s:coverage_handler'))
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let s:coverage_handler_jobs[id] = l:tmpname
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return
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endif
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if !v:shell_error
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call go#coverage#overlay(l:tmpname)
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endif
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call delete(l:tmpname)
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endfunction
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" Clear clears and resets the buffer annotation matches
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function! go#coverage#Clear()
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if exists("g:syntax_on") | syntax enable | endif
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if exists("s:toggle") | let s:toggle = 0 | endif
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" remove the autocmd we defined
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if exists("#BufWinLeave#<buffer>")
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autocmd! BufWinLeave <buffer>
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endif
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call clearmatches()
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endfunction
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" Browser creates a new cover profile with 'go test -coverprofile' and opens
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" a new HTML coverage page from that profile in a new browser
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function! go#coverage#Browser(bang, ...)
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let l:tmpname=tempname()
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let args = [a:bang, 0, "-coverprofile", l:tmpname]
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if a:0
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call extend(args, a:000)
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endif
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let id = call('go#cmd#Test', args)
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if has('nvim')
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call go#jobcontrol#AddHandler(function('s:coverage_browser_handler'))
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let s:coverage_browser_handler_jobs[id] = l:tmpname
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return
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endif
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if !v:shell_error
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let openHTML = 'go tool cover -html='.l:tmpname
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call go#tool#ExecuteInDir(openHTML)
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endif
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call delete(l:tmpname)
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endfunction
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" Parses a single line from the cover file generated via go test -coverprofile
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" and returns a single coverage profile block.
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function! go#coverage#parsegocoverline(line)
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" file:startline.col,endline.col numstmt count
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let mx = '\([^:]\+\):\(\d\+\)\.\(\d\+\),\(\d\+\)\.\(\d\+\)\s\(\d\+\)\s\(\d\+\)'
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let tokens = matchlist(a:line, mx)
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let ret = {}
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let ret.file = tokens[1]
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let ret.startline = str2nr(tokens[2])
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let ret.startcol = str2nr(tokens[3])
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let ret.endline = str2nr(tokens[4])
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let ret.endcol = str2nr(tokens[5])
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let ret.numstmt = tokens[6]
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let ret.cnt = tokens[7]
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return ret
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endfunction
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" Generates matches to be added to matchaddpos for the given coverage profile
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" block
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function! go#coverage#genmatch(cov)
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let color = 'covered'
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if a:cov.cnt == 0
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let color = 'uncover'
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endif
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let matches = []
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" if start and end are the same, also specify the byte length
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" example: foo.go:92.2,92.65 1 0
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if a:cov.startline == a:cov.endline
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call add(matches, {
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\ 'group': color,
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\ 'pos': [[a:cov.startline, a:cov.startcol, a:cov.endcol - a:cov.startcol]],
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\ 'priority': 2,
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\ })
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return matches
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endif
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" add start columns. Because we don't know the length of the of
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" the line, we assume it is at maximum 200 bytes. I know this is hacky,
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" but that's only way of fixing the issue
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call add(matches, {
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\ 'group': color,
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\ 'pos': [[a:cov.startline, a:cov.startcol, 200]],
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\ 'priority': 2,
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\ })
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" and then the remaining lines
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let start_line = a:cov.startline
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while start_line < a:cov.endline
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let start_line += 1
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call add(matches, {
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\ 'group': color,
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\ 'pos': [[start_line]],
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\ 'priority': 2,
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\ })
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endwhile
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" finally end columns
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call add(matches, {
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\ 'group': color,
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\ 'pos': [[a:cov.endline, a:cov.endcol-1]],
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\ 'priority': 2,
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\ })
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return matches
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endfunction
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" Reads the given coverprofile file and annotates the current buffer
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function! go#coverage#overlay(file)
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if !filereadable(a:file)
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return
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endif
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let lines = readfile(a:file)
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" cover mode, by default it's 'set'. Just here for debugging purposes
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let mode = lines[0]
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" contains matches for matchaddpos()
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let matches = []
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" first mark all lines as normaltext. We use a custom group to not
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" interfere with other buffers highlightings. Because the priority is
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" lower than the cover and uncover matches, it'll be overriden.
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let cnt = 1
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while cnt <= line('$')
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call add(matches, {'group': 'normaltext', 'pos': [cnt], 'priority': 1})
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let cnt += 1
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endwhile
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let fname = expand('%:t')
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" when called for a _test.go file, run the coverage for the actuall file
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" file
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if fname =~# '^\f\+_test\.go$'
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let l:root = split(fname, '_test.go$')[0]
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let fname = l:root . ".go"
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if !filereadable(fname)
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call go#util#EchoError("couldn't find ".fname)
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return
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endif
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" open the alternate file to show the coverage
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exe ":edit ". fnamemodify(fname, ":p")
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endif
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for line in lines[1:]
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let cov = go#coverage#parsegocoverline(line)
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" TODO(arslan): for now only include the coverage for the current
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" buffer
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if fname != fnamemodify(cov.file, ':t')
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continue
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endif
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call extend(matches, go#coverage#genmatch(cov))
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endfor
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syntax manual
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highlight normaltext term=bold ctermfg=59 guifg=#75715E
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highlight covered term=bold ctermfg=118 guifg=#A6E22E
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highlight uncover term=bold ctermfg=197 guifg=#F92672
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" clear the matches if we leave the buffer
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autocmd BufWinLeave <buffer> call go#coverage#Clear()
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for m in matches
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call matchaddpos(m.group, m.pos)
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endfor
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endfunction
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" -----------------------
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" | Neovim job handlers |
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" -----------------------
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let s:coverage_handler_jobs = {}
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let s:coverage_browser_handler_jobs = {}
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function! s:coverage_handler(job, exit_status, data)
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if !has_key(s:coverage_handler_jobs, a:job.id)
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return
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endif
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let l:tmpname = s:coverage_handler_jobs[a:job.id]
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if a:exit_status == 0
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call go#coverage#overlay(l:tmpname)
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endif
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call delete(l:tmpname)
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unlet s:coverage_handler_jobs[a:job.id]
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endfunction
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function! s:coverage_browser_handler(job, exit_status, data)
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if !has_key(s:coverage_browser_handler_jobs, a:job.id)
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return
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endif
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let l:tmpname = s:coverage_browser_handler_jobs[a:job.id]
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if a:exit_status == 0
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let openHTML = 'go tool cover -html='.l:tmpname
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call go#tool#ExecuteInDir(openHTML)
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endif
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call delete(l:tmpname)
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unlet s:coverage_browser_handler_jobs[a:job.id]
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endfunction
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" vim:ts=4:sw=4:et
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