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Syntax check rust with -Zno-trans instead of -Zparse-only #72

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Syntax check rust with -Zno-trans instead of -Zparse-only #72

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7ade8c3
Use 'cargo rustc -Zno-trans' for syntastic checker
faern Feb 9, 2016
f20b8b4
Detect standalone rs vs a crate
faern Feb 9, 2016
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20 changes: 17 additions & 3 deletions syntax_checkers/rust/rustc.vim
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,20 @@ let s:save_cpo = &cpo
set cpo&vim

function! SyntaxCheckers_rust_rustc_GetLocList() dict
let makeprg = self.makeprgBuild({ 'args': '-Zparse-only' })
let cwd = '.' " Don't change cwd as default
let cargo_toml_path = findfile('Cargo.toml', '.;')
if empty(cargo_toml_path) " Plain rs file, not a crate
let makeprg = self.makeprgBuild({
\ 'exe': 'rustc',
\ 'args': '-Zno-trans' })
else " We are inside a crate
let makeprg = self.makeprgBuild({
\ 'exe': 'cargo',
\ 'args': 'rustc -Zno-trans',
\ 'fname': '' })
" Change cwd to the root of the crate
let cwd = fnamemodify( cargo_toml_path, ':p:h')
endif

let errorformat =
\ '%E%f:%l:%c: %\d%#:%\d%# %.%\{-}error:%.%\{-} %m,' .
Expand All @@ -24,12 +37,13 @@ function! SyntaxCheckers_rust_rustc_GetLocList() dict

return SyntasticMake({
\ 'makeprg': makeprg,
\ 'errorformat': errorformat })
\ 'errorformat': errorformat,
\ 'cwd': cwd })
endfunction

call g:SyntasticRegistry.CreateAndRegisterChecker({
\ 'filetype': 'rust',
\ 'name': 'rustc'})
\ 'name': 'rustc' })

let &cpo = s:save_cpo
unlet s:save_cpo