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Initial Commit, providing 'HdevtoolsType' and 'HdevtoolsClear'
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" ---------------------------------------------------------------------------- | ||
" Most of the code below has been taken from ghcmod-vim, with a few | ||
" adjustments and tweaks. | ||
" | ||
" ghcmod-vim: | ||
" https://github.com/eagletmt/ghcmod-vim/ | ||
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let s:hdevtools_type = { | ||
\ 'ix': 0, | ||
\ 'types': [], | ||
\ } | ||
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function! s:hdevtools_type.spans(line, col) | ||
if empty(self.types) | ||
return 0 | ||
endif | ||
let [l:line1, l:col1, l:line2, l:col2] = self.types[self.ix][0] | ||
return l:line1 <= a:line && a:line <= l:line2 && l:col1 <= a:col && a:col <= l:col2 | ||
endfunction | ||
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function! s:hdevtools_type.type() | ||
return self.types[self.ix] | ||
endfunction | ||
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function! s:hdevtools_type.incr_ix() | ||
let self.ix = (self.ix + 1) % len(self.types) | ||
endfunction | ||
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function! s:hdevtools_type.highlight(group) | ||
if empty(self.types) | ||
return | ||
endif | ||
call hdevtools#clear_highlight() | ||
let [l:line1, l:col1, l:line2, l:col2] = self.types[self.ix][0] | ||
let w:hdevtools_type_matchid = matchadd(a:group, '\%' . l:line1 . 'l\%' . l:col1 . 'c\_.*\%' . l:line2 . 'l\%' . l:col2 . 'c') | ||
endfunction | ||
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function! s:highlight_group() | ||
return get(g:, 'hdevtools_type_highlight', 'Search') | ||
endfunction | ||
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function! s:on_enter() | ||
if exists('b:hdevtools_type') | ||
call b:hdevtools_type.highlight(s:highlight_group()) | ||
endif | ||
endfunction | ||
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function! s:on_leave() | ||
call hdevtools#clear_highlight() | ||
endfunction | ||
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function! hdevtools#build_command(command, args) | ||
let l:cmd = 'hdevtools' | ||
let l:cmd = l:cmd . ' ' . a:command . ' ' | ||
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let l:cmd = l:cmd . get(g:, 'hdevtools_options', '') . ' ' | ||
let l:cmd = l:cmd . a:args | ||
return l:cmd | ||
endfunction | ||
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function! hdevtools#clear_highlight() | ||
if exists('w:hdevtools_type_matchid') | ||
call matchdelete(w:hdevtools_type_matchid) | ||
unlet w:hdevtools_type_matchid | ||
endif | ||
endfunction | ||
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function! hdevtools#type() | ||
if &l:modified | ||
call hdevtools#print_warning('hdevtools#type: the buffer has been modified but not written') | ||
endif | ||
let l:line = line('.') | ||
let l:col = col('.') | ||
if exists('b:hdevtools_type') && b:hdevtools_type.spans(l:line, l:col) | ||
call b:hdevtools_type.incr_ix() | ||
call b:hdevtools_type.highlight(s:highlight_group()) | ||
return b:hdevtools_type.type() | ||
endif | ||
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let l:file = expand('%') | ||
if l:file ==# '' | ||
call hdevtools#print_warning("current version of hdevtools.vim doesn't support running on an unnamed buffer.") | ||
return ['', ''] | ||
endif | ||
let l:cmd = hdevtools#build_command('type', shellescape(l:file) . ' ' . l:line . ' ' . l:col) | ||
let l:output = system(l:cmd) | ||
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if v:shell_error != 0 | ||
for l:line in split(l:output, '\n') | ||
call hdevtools#print_error(l:line) | ||
endfor | ||
return | ||
endif | ||
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let l:types = [] | ||
for l:line in split(l:output, '\n') | ||
let l:m = matchlist(l:line, '\(\d\+\) \(\d\+\) \(\d\+\) \(\d\+\) "\([^"]\+\)"') | ||
call add(l:types, [l:m[1 : 4], l:m[5]]) | ||
endfor | ||
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call hdevtools#clear_highlight() | ||
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let l:len = len(l:types) | ||
if l:len == 0 | ||
return [0, '-- No Type Information'] | ||
endif | ||
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let b:hdevtools_type = deepcopy(s:hdevtools_type) | ||
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let b:hdevtools_type.types = l:types | ||
let l:ret = b:hdevtools_type.type() | ||
let [l:line1, l:col1, l:line2, l:col2] = l:ret[0] | ||
call b:hdevtools_type.highlight(s:highlight_group()) | ||
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augroup hdevtools-type-highlight | ||
autocmd! * <buffer> | ||
autocmd BufEnter <buffer> call s:on_enter() | ||
autocmd WinEnter <buffer> call s:on_enter() | ||
autocmd BufLeave <buffer> call s:on_leave() | ||
autocmd WinLeave <buffer> call s:on_leave() | ||
augroup END | ||
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return l:ret | ||
endfunction | ||
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function! hdevtools#type_clear() | ||
if exists('b:hdevtools_type') | ||
call hdevtools#clear_highlight() | ||
unlet b:hdevtools_type | ||
endif | ||
endfunction | ||
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function! hdevtools#print_error(msg) | ||
echohl ErrorMsg | ||
echomsg a:msg | ||
echohl None | ||
endfunction | ||
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function! hdevtools#print_warning(msg) | ||
echohl WarningMsg | ||
echomsg a:msg | ||
echohl None | ||
endfunction |
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if exists('b:did_ftplugin_hdevtools') && b:did_ftplugin_hdevtools | ||
finish | ||
endif | ||
let b:did_ftplugin_hdevtools = 1 | ||
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if !exists('s:has_hdevtools') | ||
let s:has_hdevtools = 0 | ||
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if !executable('hdevtools') | ||
call hdevtools#print_error('hdevtools: hdevtools is not executable!') | ||
finish | ||
endif | ||
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let s:has_hdevtools = 1 | ||
endif | ||
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if !s:has_hdevtools | ||
finish | ||
endif | ||
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if exists('b:undo_ftplugin') | ||
let b:undo_ftplugin .= ' | ' | ||
else | ||
let b:undo_ftplugin = '' | ||
endif | ||
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command! -buffer -nargs=0 HdevtoolsType echo hdevtools#type()[1] | ||
command! -buffer -nargs=0 HdevtoolsClear call hdevtools#type_clear() | ||
let b:undo_ftplugin .= join(map([ | ||
\ 'HdevtoolsType', | ||
\ 'HdevtoolsClear' | ||
\ ], '"delcommand " . v:val'), ' | ') | ||
let b:undo_ftplugin .= ' | unlet b:did_ftplugin_hdevtools' |