319 lines
8.2 KiB
VimL
319 lines
8.2 KiB
VimL
let s:go_stack = []
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let s:go_stack_level = 0
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function! go#def#Jump(mode) abort
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let old_gopath = $GOPATH
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let $GOPATH = go#path#Detect()
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let fname = fnamemodify(expand("%"), ':p:gs?\\?/?')
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" so guru right now is slow for some people. previously we were using
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" godef which also has it's own quirks. But this issue come up so many
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" times I've decided to support both. By default we still use guru as it
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" covers all edge cases, but now anyone can switch to godef if they wish
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let bin_name = get(g:, 'go_def_mode', 'guru')
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if bin_name == 'godef'
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if &modified
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" Write current unsaved buffer to a temp file and use the modified content
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let l:tmpname = tempname()
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call writefile(go#util#GetLines(), l:tmpname)
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let fname = l:tmpname
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endif
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let bin_path = go#path#CheckBinPath("godef")
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if empty(bin_path)
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let $GOPATH = old_gopath
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return
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endif
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let command = printf("%s -f=%s -o=%s -t", bin_path, fname, go#util#OffsetCursor())
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let out = go#util#System(command)
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if exists("l:tmpname")
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call delete(l:tmpname)
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endif
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elseif bin_name == 'guru'
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let bin_path = go#path#CheckBinPath("guru")
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if empty(bin_path)
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let $GOPATH = old_gopath
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return
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endif
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let cmd = [bin_path]
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let stdin_content = ""
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if &modified
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let content = join(go#util#GetLines(), "\n")
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let stdin_content = fname . "\n" . strlen(content) . "\n" . content
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call add(cmd, "-modified")
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endif
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if exists('g:go_build_tags')
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let tags = get(g:, 'go_build_tags')
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call extend(cmd, ["-tags", tags])
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endif
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let fname = fname.':#'.go#util#OffsetCursor()
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call extend(cmd, ["definition", fname])
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if go#util#has_job()
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let l:spawn_args = {
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\ 'cmd': cmd,
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\ 'custom_cb': function('s:jump_to_declaration_cb', [a:mode, bin_name]),
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\ }
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if &modified
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let l:spawn_args.input = stdin_content
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endif
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call go#util#EchoProgress("searching declaration ...")
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call s:def_job(spawn_args)
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return
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endif
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let command = join(cmd, " ")
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if &modified
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let out = go#util#System(command, stdin_content)
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else
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let out = go#util#System(command)
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endif
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else
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call go#util#EchoError('go_def_mode value: '. bin_name .' is not valid. Valid values are: [godef, guru]')
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return
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endif
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if go#util#ShellError() != 0
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call go#util#EchoError(out)
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return
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endif
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call go#def#jump_to_declaration(out, a:mode, bin_name)
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let $GOPATH = old_gopath
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endfunction
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function! s:jump_to_declaration_cb(mode, bin_name, job, exit_status, data) abort
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if a:exit_status != 0
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return
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endif
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call go#def#jump_to_declaration(a:data[0], a:mode, a:bin_name)
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endfunction
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function! go#def#jump_to_declaration(out, mode, bin_name) abort
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let final_out = a:out
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if a:bin_name == "godef"
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" append the type information to the same line so our we can parse it.
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" This makes it compatible with guru output.
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let final_out = join(split(a:out, '\n'), ':')
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endif
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" strip line ending
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let out = split(final_out, go#util#LineEnding())[0]
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if go#util#IsWin()
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let parts = split(out, '\(^[a-zA-Z]\)\@<!:')
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else
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let parts = split(out, ':')
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endif
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let filename = parts[0]
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let line = parts[1]
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let col = parts[2]
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let ident = parts[3]
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" Remove anything newer than the current position, just like basic
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" vim tag support
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if s:go_stack_level == 0
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let s:go_stack = []
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else
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let s:go_stack = s:go_stack[0:s:go_stack_level-1]
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endif
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" increment the stack counter
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let s:go_stack_level += 1
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" push it on to the jumpstack
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let stack_entry = {'line': line("."), 'col': col("."), 'file': expand('%:p'), 'ident': ident}
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call add(s:go_stack, stack_entry)
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" needed for restoring back user setting this is because there are two
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" modes of switchbuf which we need based on the split mode
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let old_switchbuf = &switchbuf
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normal! m'
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if filename != fnamemodify(expand("%"), ':p:gs?\\?/?')
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" jump to existing buffer if, 1. we have enabled it, 2. the buffer is loaded
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" and 3. there is buffer window number we switch to
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if get(g:, 'go_def_reuse_buffer', 0) && bufloaded(filename) != 0 && bufwinnr(filename) != -1
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" jumpt to existing buffer if it exists
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execute bufwinnr(filename) . 'wincmd w'
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else
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if &modified
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let cmd = 'hide edit'
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else
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let cmd = 'edit'
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endif
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if a:mode == "tab"
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let &switchbuf = "usetab"
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if bufloaded(filename) == 0
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tab split
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endif
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elseif a:mode == "split"
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split
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elseif a:mode == "vsplit"
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vsplit
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endif
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" open the file and jump to line and column
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exec cmd filename
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endif
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endif
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call cursor(line, col)
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" also align the line to middle of the view
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normal! zz
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let &switchbuf = old_switchbuf
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endfunction
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function! go#def#SelectStackEntry() abort
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let target_window = go#ui#GetReturnWindow()
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if empty(target_window)
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let target_window = winnr()
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endif
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let highlighted_stack_entry = matchstr(getline("."), '^..\zs\(\d\+\)')
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if !empty(highlighted_stack_entry)
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execute target_window . "wincmd w"
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call go#def#Stack(str2nr(highlighted_stack_entry))
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endif
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call go#ui#CloseWindow()
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endfunction
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function! go#def#StackUI() abort
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if len(s:go_stack) == 0
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call go#util#EchoError("godef stack empty")
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return
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endif
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let stackOut = ['" <Up>,<Down>:navigate <Enter>:jump <Esc>,q:exit']
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let i = 0
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while i < len(s:go_stack)
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let entry = s:go_stack[i]
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let prefix = ""
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if i == s:go_stack_level
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let prefix = ">"
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else
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let prefix = " "
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endif
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call add(stackOut, printf("%s %d %s|%d col %d|%s",
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\ prefix, i+1, entry["file"], entry["line"], entry["col"], entry["ident"]))
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let i += 1
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endwhile
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if s:go_stack_level == i
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call add(stackOut, "> ")
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endif
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call go#ui#OpenWindow("GoDef Stack", stackOut, "godefstack")
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noremap <buffer> <silent> <CR> :<C-U>call go#def#SelectStackEntry()<CR>
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noremap <buffer> <silent> <Esc> :<C-U>call go#ui#CloseWindow()<CR>
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noremap <buffer> <silent> q :<C-U>call go#ui#CloseWindow()<CR>
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endfunction
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function! go#def#StackClear(...) abort
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let s:go_stack = []
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let s:go_stack_level = 0
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endfunction
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function! go#def#StackPop(...) abort
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if len(s:go_stack) == 0
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call go#util#EchoError("godef stack empty")
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return
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endif
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if s:go_stack_level == 0
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call go#util#EchoError("at bottom of the godef stack")
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return
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endif
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if !len(a:000)
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let numPop = 1
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else
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let numPop = a:1
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endif
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let newLevel = str2nr(s:go_stack_level) - str2nr(numPop)
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call go#def#Stack(newLevel + 1)
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endfunction
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function! go#def#Stack(...) abort
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if len(s:go_stack) == 0
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call go#util#EchoError("godef stack empty")
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return
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endif
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if !len(a:000)
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" Display interactive stack
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call go#def#StackUI()
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return
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else
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let jumpTarget = a:1
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endif
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if jumpTarget !~ '^\d\+$'
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if jumpTarget !~ '^\s*$'
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call go#util#EchoError("location must be a number")
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endif
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return
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endif
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let jumpTarget = str2nr(jumpTarget) - 1
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if jumpTarget >= 0 && jumpTarget < len(s:go_stack)
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let s:go_stack_level = jumpTarget
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let target = s:go_stack[s:go_stack_level]
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" jump
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if expand('%:p') != target["file"]
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if &modified
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exec 'hide edit' target["file"]
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else
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exec 'edit' target["file"]
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endif
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endif
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call cursor(target["line"], target["col"])
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normal! zz
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else
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call go#util#EchoError("invalid location. Try :GoDefStack to see the list of valid entries")
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endif
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endfunction
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function s:def_job(args) abort
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function! s:error_info_cb(job, exit_status, data) closure
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" do not print anything during async definition search&jump
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endfunction
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let a:args.error_info_cb = funcref('s:error_info_cb')
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let callbacks = go#job#Spawn(a:args)
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let start_options = {
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\ 'callback': callbacks.callback,
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\ 'exit_cb': callbacks.exit_cb,
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\ }
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if &modified
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let l:tmpname = tempname()
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call writefile(split(a:args.input, "\n"), l:tmpname, "b")
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let l:start_options.in_io = "file"
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let l:start_options.in_name = l:tmpname
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endif
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call job_start(a:args.cmd, start_options)
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endfunction
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" vim: sw=2 ts=2 et
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