if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'dart') == -1
function! s:error(text) abort
echohl Error
echomsg printf('[dart-vim-plugin] %s', a:text)
echohl None
endfunction
function! s:cexpr(errorformat, joined_lines) abort
let temp_errorfomat = &errorformat
try
let &errorformat = a:errorformat
cexpr a:joined_lines
copen
finally
let &errorformat = temp_errorfomat
endtry
endfunction
function! dart#fmt(q_args) abort
if executable('dartfmt')
let buffer_content = join(getline(1, '$'), "\n")
let joined_lines = system(printf('dartfmt %s', a:q_args), buffer_content)
if buffer_content ==# joined_lines[:-2] | return | endif
if 0 == v:shell_error
let win_view = winsaveview()
let lines = split(joined_lines, "\n")
silent keepjumps call setline(1, lines)
if line('$') > len(lines)
silent keepjumps execute string(len(lines)+1).',$ delete'
endif
call winrestview(win_view)
else
let errors = split(joined_lines, "\n")[2:]
let file_path = expand('%')
call map(errors, 'file_path.":".v:val')
let error_format = '%A%f:line %l\, column %c of stdin: %m,%C%.%#'
call s:cexpr(error_format, join(errors, "\n"))
endif
else
call s:error('cannot execute binary file: dartfmt')
endif
endfunction
function! dart#analyzer(q_args) abort
if executable('dartanalyzer')
let path = expand('%:p:gs:\:/:')
if filereadable(path)
let joined_lines = system(printf('dartanalyzer %s %s', a:q_args, shellescape(path)))
call s:cexpr('%m (%f\, line %l\, col %c)', joined_lines)
else
call s:error(printf('cannot read a file: "%s"', path))
endif
else
call s:error('cannot execute binary file: dartanalyzer')
endif
endfunction
function! dart#tojs(q_args) abort
if executable('dart2js')
let path = expand('%:p:gs:\:/:')
if filereadable(path)
let joined_lines = system(printf('dart2js %s %s', a:q_args, shellescape(path)))
call s:cexpr('%m (%f\, line %l\, col %c)', joined_lines)
else
call s:error(printf('cannot read a file: "%s"', path))
endif
else
call s:error('cannot execute binary file: dartanalyzer')
endif
endfunction
" Finds the path to `uri`.
"
" If the file is a package: uri, looks for a .packages file to resolve the path.
" If the path cannot be resolved, or is not a package: uri, returns the
" original.
function! dart#resolveUri(uri) abort
if a:uri !~ 'package:'
return a:uri
endif
let package_name = substitute(a:uri, 'package:\(\w\+\)\/.*', '\1', '')
let [found, package_map] = s:PackageMap()
if !found
call s:error('cannot find .packages file')
return a:uri
endif
if !has_key(package_map, package_name)
call s:error('no package mapping for '.package_name)
return a:uri
endif
let package_lib = package_map[package_name]
return substitute(a:uri,
\ 'package:'.package_name,
\ escape(package_map[package_name], '\'),
\ '')
endfunction
" A map from package name to lib directory parse from a '.packages' file.
"
" Returns [found, package_map]
function! s:PackageMap() abort
let [found, dot_packages] = s:DotPackagesFile()
if !found
return [v:false, {}]
endif
let dot_packages_dir = fnamemodify(dot_packages, ':p:h')
let lines = readfile(dot_packages)
let map = {}
for line in lines
if line =~ '\s*#'
continue
endif
let package = substitute(line, ':.*$', '', '')
let lib_dir = substitute(line, '^[^:]*:', '', '')
if lib_dir =~ 'file:/'
let lib_dir = substitute(lib_dir, 'file://', '', '')
if lib_dir =~ '/[A-Z]:/'
let lib_dir = lib_dir[1:]
endif
else
let lib_dir = resolve(dot_packages_dir.'/'.lib_dir)
endif
if lib_dir =~ '/$'
let lib_dir = lib_dir[:len(lib_dir) - 2]
endif
let map[package] = lib_dir
endfor
return [v:true, map]
endfunction
" Toggle whether dartfmt is run on save or not.
function! dart#ToggleFormatOnSave() abort
if get(g:, "dart_format_on_save", 0)
let g:dart_format_on_save = 0
return
endif
let g:dart_format_on_save = 1
endfunction
" Finds a file name '.packages' in the cwd, or in any directory above the open
" file.
"
" Returns [found, file].
function! s:DotPackagesFile() abort
if filereadable('.packages')
return [v:true, '.packages']
endif
let dir_path = expand('%:p:h')
while v:true
let file_path = dir_path.'/.packages'
if filereadable(file_path)
return [v:true, file_path]
endif
let parent = fnamemodify(dir_path, ':h')
if dir_path == parent
break
endif
let dir_path = parent
endwhile
return [v:false, '']
endfunction
" Prevent writes to files in the pub cache.
function! dart#setModifiable() abort
let full_path = expand('%:p')
if full_path =~# '.pub-cache' ||
\ full_path =~# 'Pub\Cache'
setlocal nomodifiable
endif
endfunction
endif
