195 lines
6.2 KiB
VimL
195 lines
6.2 KiB
VimL
" -*- text -*-
|
|
" oracle.vim -- Vim integration for the Go oracle.
|
|
"
|
|
" Part of this plugin was taken directly from the oracle repo, however it's
|
|
" massively changed for a better integration into vim-go. Thanks Alan Donovan
|
|
" for the first iteration based on quickfix! - Fatih Arslan
|
|
"
|
|
|
|
if !exists("g:go_oracle_bin")
|
|
let g:go_oracle_bin = "oracle"
|
|
endif
|
|
|
|
" Parses (via regex) Oracle's 'plain' format output and puts them into a
|
|
" quickfix list.
|
|
func! s:qflist(output)
|
|
let qflist = []
|
|
" Parse GNU-style 'file:line.col-line.col: message' format.
|
|
let mx = '^\(\a:[\\/][^:]\+\|[^:]\+\):\(\d\+\):\(\d\+\):\(.*\)$'
|
|
for line in split(a:output, "\n")
|
|
let ml = matchlist(line, mx)
|
|
|
|
" Ignore non-match lines or warnings
|
|
if ml == [] || ml[4] =~ '^ warning:'
|
|
continue
|
|
endif
|
|
|
|
let item = {
|
|
\ 'filename': ml[1],
|
|
\ 'text': ml[4],
|
|
\ 'lnum': ml[2],
|
|
\ 'col': ml[3],
|
|
\}
|
|
let bnr = bufnr(fnameescape(ml[1]))
|
|
if bnr != -1
|
|
let item['bufnr'] = bnr
|
|
endif
|
|
call add(qflist, item)
|
|
endfor
|
|
call setqflist(qflist)
|
|
cwindow
|
|
endfun
|
|
|
|
" This uses Vim's errorformat to parse the output from Oracle's 'plain output
|
|
" and put it into quickfix list. I believe using errorformat is much more
|
|
" easier to use. If we need more power we can always switch back to parse it
|
|
" via regex.
|
|
func! s:qflistSecond(output)
|
|
" backup users errorformat, will be restored once we are finished
|
|
let old_errorformat = &errorformat
|
|
|
|
" match two possible styles of errorformats:
|
|
"
|
|
" 'file:line.col-line2.col2: message'
|
|
" 'file:line:col: message'
|
|
"
|
|
" We discard line2 and col2 for the first errorformat, because it's not
|
|
" useful and quickfix only has the ability to show one line and column
|
|
" number
|
|
let &errorformat = "%f:%l.%c-%.%#:\ %m,%f:%l:%c:\ %m"
|
|
|
|
" create the quickfix list and open it
|
|
cgetexpr split(a:output, "\n")
|
|
cwindow
|
|
|
|
let &errorformat = old_errorformat
|
|
endfun
|
|
|
|
func! s:getpos(l, c)
|
|
if &encoding != 'utf-8'
|
|
let buf = a:l == 1 ? '' : (join(getline(1, a:l-1), "\n") . "\n")
|
|
let buf .= a:c == 1 ? '' : getline('.')[:a:c-2]
|
|
return len(iconv(buf, &encoding, 'utf-8'))
|
|
endif
|
|
return line2byte(a:l) + (a:c-2)
|
|
endfun
|
|
|
|
func! s:RunOracle(mode, selected) range abort
|
|
let fname = expand('%:p')
|
|
let dname = expand('%:p:h')
|
|
let pkg = go#package#ImportPath(dname)
|
|
|
|
if exists('g:go_oracle_scope')
|
|
" let the user defines the scope, must be a space separated string,
|
|
" example: 'fmt math net/http'
|
|
let unescaped_scopes = split(get(g:, 'go_oracle_scope'))
|
|
let scopes = []
|
|
for unescaped_scope in unescaped_scopes
|
|
call add(scopes, shellescape(unescaped_scope))
|
|
endfor
|
|
elseif exists('g:go_oracle_include_tests') && pkg != -1
|
|
" give import path so it includes all _test.go files too
|
|
let scopes = [shellescape(pkg)]
|
|
else
|
|
" best usable way, only pass the package itself, without the test
|
|
" files
|
|
let scopes = go#tool#Files()
|
|
endif
|
|
|
|
"return with a warning if the bin doesn't exist
|
|
let bin_path = go#tool#BinPath(g:go_oracle_bin)
|
|
if empty(bin_path)
|
|
return
|
|
endif
|
|
|
|
if a:selected != -1
|
|
let pos1 = s:getpos(line("'<"), col("'<"))
|
|
let pos2 = s:getpos(line("'>"), col("'>"))
|
|
let cmd = printf('%s -format plain -pos=%s:#%d,#%d %s',
|
|
\ bin_path,
|
|
\ shellescape(fname), pos1, pos2, a:mode)
|
|
else
|
|
let pos = s:getpos(line('.'), col('.'))
|
|
let cmd = printf('%s -format plain -pos=%s:#%d %s',
|
|
\ bin_path,
|
|
\ shellescape(fname), pos, a:mode)
|
|
endif
|
|
|
|
" now append each scope to the end as Oracle's scope parameter. It can be
|
|
" a packages or go files, dependent on the User's own choice. For more
|
|
" info check Oracle's User Manual section about scopes:
|
|
" https://docs.google.com/document/d/1SLk36YRjjMgKqe490mSRzOPYEDe0Y_WQNRv-EiFYUyw/view#heading=h.nwso96pj07q8
|
|
for scope in scopes
|
|
let cmd .= ' ' . scope
|
|
endfor
|
|
|
|
echon "vim-go: " | echohl Identifier | echon "analysing ..." | echohl None
|
|
|
|
let out = system(cmd)
|
|
if v:shell_error
|
|
" unfortunaly oracle outputs a very long stack trace that is not
|
|
" parsable to show the real error. But the main issue is usually the
|
|
" package which doesn't build.
|
|
redraw | echon "vim-go: " | echohl Statement | echon out | echohl None
|
|
return ""
|
|
else
|
|
|
|
return out
|
|
endfun
|
|
|
|
|
|
" Show 'implements' relation for selected package
|
|
function! go#oracle#Implements(selected)
|
|
let out = s:RunOracle('implements', a:selected)
|
|
call s:qflistSecond(out)
|
|
endfunction
|
|
|
|
" Describe selected syntax: definition, methods, etc
|
|
function! go#oracle#Describe(selected)
|
|
let out = s:RunOracle('describe', a:selected)
|
|
call s:qflistSecond(out)
|
|
endfunction
|
|
|
|
" Show possible targets of selected function call
|
|
function! go#oracle#Callees(selected)
|
|
let out = s:RunOracle('callees', a:selected)
|
|
call s:qflistSecond(out)
|
|
endfunction
|
|
|
|
" Show possible callers of selected function
|
|
function! go#oracle#Callers(selected)
|
|
let out = s:RunOracle('callers', a:selected)
|
|
call s:qflistSecond(out)
|
|
endfunction
|
|
|
|
" Show the callgraph of the current program.
|
|
function! go#oracle#Callgraph(selected)
|
|
let out = s:RunOracle('callgraph', a:selected)
|
|
call s:qflistSecond(out)
|
|
endfunction
|
|
|
|
" Show path from callgraph root to selected function
|
|
function! go#oracle#Callstack(selected)
|
|
let out = s:RunOracle('callstack', a:selected)
|
|
call s:qflistSecond(out)
|
|
endfunction
|
|
|
|
" Show free variables of selection
|
|
function! go#oracle#Freevars(selected)
|
|
let out = s:RunOracle('freevars', a:selected)
|
|
call s:qflistSecond(out)
|
|
endfunction
|
|
|
|
" Show send/receive corresponding to selected channel op
|
|
function! go#oracle#ChannelPeers(selected)
|
|
let out = s:RunOracle('peers', a:selected)
|
|
call s:qflistSecond(out)
|
|
endfunction
|
|
|
|
" Show all refs to entity denoted by selected identifier
|
|
function! go#oracle#Referrers(selected)
|
|
let out = s:RunOracle('referrers', a:selected)
|
|
call s:qflistSecond(out)
|
|
endfunction
|
|
|
|
" vim:ts=4:sw=4:et
|