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Add babylon as default Prettier parser (#2220)

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* Mimic Prettier's default parser by setting it to `babylon`
* Add tests to check default Prettier `parser`
* Set Prettier default parser based on version
* Update the comment to explain the reason for an explicit default
This commit is contained in:
Alvin Chan 2019-01-22 02:24:15 -08:00 committed by w0rp
parent d0284f22ea
commit f12d312aa4
2 changed files with 37 additions and 1 deletions
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10
autoload/ale/fixers/prettier.vim
View File

@ -47,6 +47,15 @@ function! ale#fixers#prettier#ApplyFixForVersion(buffer, version_output) abort
" Append the --parser flag depending on the current filetype (unless it's
" already set in g:javascript_prettier_options).
if empty(expand('#' . a:buffer . ':e')) && match(l:options, '--parser') == -1
" Mimic Prettier's defaults. In cases without a file extension or
" filetype (scratch buffer), Prettier needs `parser` set to know how
" to process the buffer.
if ale#semver#GTE(l:version, [1, 16, 0])
let l:parser = 'babel'
else
let l:parser = 'babylon'
endif
let l:prettier_parsers = {
\ 'typescript': 'typescript',
\ 'css': 'css',
@ -60,7 +69,6 @@ function! ale#fixers#prettier#ApplyFixForVersion(buffer, version_output) abort
\ 'yaml': 'yaml',
\ 'html': 'html',
\}
let l:parser = ''
for l:filetype in split(getbufvar(a:buffer, '&filetype'), '\.')
if has_key(l:prettier_parsers, l:filetype)

28
test/fixers/test_prettier_fixer_callback.vader
View File

@ -96,6 +96,34 @@ Execute(The version number should be cached):
\ },
\ ale#fixers#prettier#ApplyFixForVersion(bufnr(''), [])
Execute(Should set --parser to `babylon` by default, < 1.16.0):
call ale#test#SetFilename('../prettier-test-files/testfile')
set filetype=javascript
AssertEqual
\ {
\ 'command': ale#path#CdString(expand('%:p:h'))
\ . ale#Escape(g:ale_javascript_prettier_executable)
\ . ' --parser babylon'
\ . ' --stdin-filepath %s --stdin',
\ },
\ ale#fixers#prettier#ApplyFixForVersion(bufnr(''), ['1.6.0'])
Execute(Should set --parser to `babel` by default, >= 1.16.0):
call ale#test#SetFilename('../prettier-test-files/testfile')
set filetype=javascript
AssertEqual
\ {
\ 'command': ale#path#CdString(expand('%:p:h'))
\ . ale#Escape(g:ale_javascript_prettier_executable)
\ . ' --parser babel'
\ . ' --stdin-filepath %s --stdin',
\ },
\ ale#fixers#prettier#ApplyFixForVersion(bufnr(''), ['1.16.0'])
Execute(Should set --parser based on filetype, TypeScript):
call ale#test#SetFilename('../prettier-test-files/testfile')