Raise correct error on single semicolon

[ai]

Input:

:

Current error:

//usr/share/code/resources/app/out/vs/workbench/electron-browser/workbench.main.js:28 TypeError: Cannot read property '0' of undefined
     at Parser.decl (/home/svipben/.vscode/extensions/shinnn.stylelint-0.24.0/node_modules/postcss/lib/parser.js:203:25)
     at Parser.other (/home/svipben/.vscode/extensions/shinnn.stylelint-0.24.0/node_modules/postcss/lib/parser.js:170:18)
     at Parser.loop (/home/svipben/.vscode/extensions/shinnn.stylelint-0.24.0/node_modules/postcss/lib/parser.js:81:26)
     at parse (/home/svipben/.vscode/extensions/shinnn.stylelint-0.24.0/node_modules/postcss/lib/parse.js:26:16)
     at new LazyResult (/home/svipben/.vscode/extensions/shinnn.stylelint-0.24.0/node_modules/postcss/lib/lazy-result.js:70:24)
     at Processor.process (/home/svipben/.vscode/extensions/shinnn.stylelint-0.24.0/node_modules/postcss/lib/processor.js:117:12)
     at getCode.then.e (/home/svipben/.vscode/extensions/shinnn.stylelint-0.24.0/node_modules/stylelint/lib/getPostcssResult.js:83:29)

Expected error: CssSyntaxError.

Origin issue: postcss/postcss-scss#57 and https://github.com/shinnn/vscode-stylelint/issues/65#issuecomment-292880983

/cc @svipben @shinnn

[ai]

Done 4adaf97

But fix will be released only in next 6.0.

[shinnn]

Great work, @ai.

[equinusocio]

I get the same error with gulp-postcssthat use postcss 6.0

[ai]

@equinusocio give me more information. Stacktrace, input CSS

[equinusocio]

I'm using gulp-postcss 7.0.0 with postcss-cssnext 2.10.0 and I'm using .postcss file extension. Every time i write a selector that start with : i get this error:

TypeError: Cannot read property '0' of undefined at Parser.decl (/Users/equinusocio/.vscode/extensions/shinnn.stylelint-0.24.0/node_modules/postcss/lib/parser.js:203:25) at Parser.other (/Users/equinusocio/.vscode/extensions/shinnn.stylelint-0.24.0/node_modules/postcss/lib/parser.js:170:18) at Parser.loop (/Users/equinusocio/.vscode/extensions/shinnn.stylelint-0.24.0/node_modules/postcss/lib/parser.js:81:26) at parse (/Users/equinusocio/.vscode/extensions/shinnn.stylelint-0.24.0/

[ai]

Can you check PostCSS version in /Users/equinusocio/.vscode/extensions/shinnn.stylelint-0.24.0/node_modules/postcss?

[equinusocio]

"version": "5.2.16"

So shinnn.stylelint extension is using an old postcss version?

[shinnn]

shinnn.stylelint is not gulp-postcss.

[equinusocio]

@shinnn Yes i know, but I didn't know what was the caused. I didn't know that the stylelint extension was using postcss. You closed https://github.com/shinnn/vscode-stylelint/issues/73

[shinnn]

vscode-stylelint is just a wrapper for stylelint, which still uses PostCSS 5.x. Wait for stylelint/stylelint#2561 being merged.

[equinusocio]

Ok thank you.