Postcss Syntax Tag

[Pedroglp]

I think the syntax tag is not currently being passed forward to postcss processor.

ie:

// postcss.config.js
module.exports = {
  syntax: 'postcss-scss',
  plugins: {
    …
  }
}

//webpack.config.js
	module: {
		rules: [
			{
				test: /\.svelte$/,
				use: {
					loader: 'svelte-loader',
					options: {
						preprocess: {
							style: sveltePreprocessPostcss({
								configFilePath: './postcss.config.js',
								useConfigFile: true,
							})
						},
						emitCss: true,
						hotReload: true
					}
				}
			},

Error:

Options object is not used.

This makes a little bit harder to use syntax plugins like: postcss-less, postcss-sass, postcss-scss.

[TehShrike]

The PostCSS processor does not take a "syntax" argument.

https://github.com/postcss/postcss#js-api

Where do you expect that string to get used?

[Pedroglp]

Yes it does, but it is not documented:

https://github.com/postcss/postcss/blob/master/lib/postcss.d.ts

[Pedroglp]

Yes it does, but it is not documented:

https://github.com/postcss/postcss/blob/master/lib/postcss.d.ts

[TehShrike]

Ah, you're talking about the options argument. That is documented: https://github.com/postcss/postcss#options

I opened a PR #14 that should probably fix this, but I haven't tested it. Could you install that pass-options-to-processor branch and test it locally to make sure it works, and fixes your issue?