vimrc/sources_non_forked/vim-go/autoload/go/textobj.vim
2018-12-17 12:28:27 +01:00

284 lines
7.2 KiB
VimL

" don't spam the user when Vim is started in Vi compatibility mode
let s:cpo_save = &cpo
set cpo&vim
" ( ) motions
" { } motions
" s for sentence
" p for paragraph
" < >
" t for tag
function! go#textobj#Comment(mode) abort
let l:fname = expand('%:p')
try
if &modified
let l:tmpname = tempname()
call writefile(go#util#GetLines(), l:tmpname)
let l:fname = l:tmpname
endif
let l:cmd = ['motion',
\ '-format', 'json',
\ '-file', l:fname,
\ '-offset', go#util#OffsetCursor(),
\ '-mode', 'comment',
\ ]
let [l:out, l:err] = go#util#Exec(l:cmd)
if l:err
call go#util#EchoError(l:out)
return
endif
finally
if exists("l:tmpname")
call delete(l:tmpname)
endif
endtry
let l:result = json_decode(l:out)
if type(l:result) != 4 || !has_key(l:result, 'comment')
return
endif
let l:info = l:result.comment
call cursor(l:info.startLine, l:info.startCol)
" Adjust cursor to exclude start comment markers. Try to be a little bit
" clever when using multi-line '/*' markers.
if a:mode is# 'i'
" trim whitespace so matching below works correctly
let l:line = substitute(getline('.'), '^\s*\(.\{-}\)\s*$', '\1', '')
" //text
if l:line[:2] is# '// '
call cursor(l:info.startLine, l:info.startCol+3)
" // text
elseif l:line[:1] is# '//'
call cursor(l:info.startLine, l:info.startCol+2)
" /*
" text
elseif l:line =~# '^/\* *$'
call cursor(l:info.startLine+1, 0)
" /*
" * text
if getline('.')[:2] is# ' * '
call cursor(l:info.startLine+1, 4)
" /*
" *text
elseif getline('.')[:1] is# ' *'
call cursor(l:info.startLine+1, 3)
endif
" /* text
elseif l:line[:2] is# '/* '
call cursor(l:info.startLine, l:info.startCol+3)
" /*text
elseif l:line[:1] is# '/*'
call cursor(l:info.startLine, l:info.startCol+2)
endif
endif
normal! v
" Exclude trailing newline.
if a:mode is# 'i'
let l:info.endCol -= 1
endif
call cursor(l:info.endLine, l:info.endCol)
" Exclude trailing '*/'.
if a:mode is# 'i'
let l:line = getline('.')
" text
" */
if l:line =~# '^ *\*/$'
call cursor(l:info.endLine - 1, len(getline(l:info.endLine - 1)))
" text */
elseif l:line[-3:] is# ' */'
call cursor(l:info.endLine, l:info.endCol - 3)
" text*/
elseif l:line[-2:] is# '*/'
call cursor(l:info.endLine, l:info.endCol - 2)
endif
endif
endfunction
" Select a function in visual mode.
function! go#textobj#Function(mode) abort
let l:fname = expand("%:p")
if &modified
let l:tmpname = tempname()
call writefile(go#util#GetLines(), l:tmpname)
let l:fname = l:tmpname
endif
let l:cmd = ['motion',
\ '-format', 'vim',
\ '-file', l:fname,
\ '-offset', go#util#OffsetCursor(),
\ '-mode', 'enclosing',
\ ]
if go#config#TextobjIncludeFunctionDoc()
let l:cmd += ['-parse-comments']
endif
let [l:out, l:err] = go#util#Exec(l:cmd)
if l:err
call go#util#EchoError(out)
return
endif
" if exists, delete it as we don't need it anymore
if exists("l:tmpname")
call delete(l:tmpname)
endif
" convert our string dict representation into native Vim dictionary type
let result = eval(out)
if type(result) != 4 || !has_key(result, 'fn')
return
endif
let info = result.fn
if a:mode == 'a'
" anonymous functions doesn't have associated doc. Also check if the user
" want's to include doc comments for function declarations
if has_key(info, 'doc') && go#config#TextobjIncludeFunctionDoc()
call cursor(info.doc.line, info.doc.col)
elseif info['sig']['name'] == '' && go#config#TextobjIncludeVariable()
" one liner anonymous functions
if info.lbrace.line == info.rbrace.line
" jump to first nonblack char, to get the correct column
call cursor(info.lbrace.line, 0 )
normal! ^
call cursor(info.func.line, col("."))
else
call cursor(info.func.line, info.rbrace.col)
endif
else
call cursor(info.func.line, info.func.col)
endif
normal! v
call cursor(info.rbrace.line, info.rbrace.col)
return
endif
" rest is inner mode, a:mode == 'i'
" if the function is a one liner we need to select only that portion
if info.lbrace.line == info.rbrace.line
call cursor(info.lbrace.line, info.lbrace.col+1)
normal! v
call cursor(info.rbrace.line, info.rbrace.col-1)
return
endif
call cursor(info.lbrace.line+1, 1)
normal! V
call cursor(info.rbrace.line-1, 1)
endfunction
" Get the location of the previous or next function.
function! go#textobj#FunctionLocation(direction, cnt) abort
let l:fname = expand("%:p")
if &modified
" Write current unsaved buffer to a temp file and use the modified content
let l:tmpname = tempname()
call writefile(go#util#GetLines(), l:tmpname)
let l:fname = l:tmpname
endif
let l:cmd = ['motion',
\ '-format', 'vim',
\ '-file', l:fname,
\ '-offset', go#util#OffsetCursor(),
\ '-shift', a:cnt,
\ '-mode', a:direction,
\ ]
if go#config#TextobjIncludeFunctionDoc()
let l:cmd += ['-parse-comments']
endif
let [l:out, l:err] = go#util#Exec(l:cmd)
if l:err
call go#util#EchoError(out)
return
endif
" if exists, delete it as we don't need it anymore
if exists("l:tmpname")
call delete(l:tmpname)
endif
let l:result = json_decode(out)
if type(l:result) != 4 || !has_key(l:result, 'fn')
return 0
endif
return l:result
endfunction
function! go#textobj#FunctionJump(mode, direction) abort
" get count of the motion. This should be done before all the normal
" expressions below as those reset this value(because they have zero
" count!). We abstract -1 because the index starts from 0 in motion.
let l:cnt = v:count1 - 1
" set context mark so we can jump back with '' or ``
normal! m'
" select already previously selected visual content and continue from there.
" If it's the first time starts with the visual mode. This is needed so
" after selecting something in visual mode, every consecutive motion
" continues.
if a:mode == 'v'
normal! gv
endif
let l:result = go#textobj#FunctionLocation(a:direction, l:cnt)
if l:result is 0
return
endif
" we reached the end and there are no functions. The usual [[ or ]] jumps to
" the top or bottom, we'll do the same.
if type(result) == 4 && has_key(result, 'err') && result.err == "no functions found"
if a:direction == 'next'
keepjumps normal! G
else " 'prev'
keepjumps normal! gg
endif
return
endif
let info = result.fn
" if we select something ,select all function
if a:mode == 'v' && a:direction == 'next'
keepjumps call cursor(info.rbrace.line, 1)
return
endif
if a:mode == 'v' && a:direction == 'prev'
if has_key(info, 'doc') && go#config#TextobjIncludeFunctionDoc()
keepjumps call cursor(info.doc.line, 1)
else
keepjumps call cursor(info.func.line, 1)
endif
return
endif
keepjumps call cursor(info.func.line, 1)
endfunction
" restore Vi compatibility settings
let &cpo = s:cpo_save
unlet s:cpo_save
" vim: sw=2 ts=2 et