index.js

import postcss from 'postcss';
import localByDefault from 'postcss-modules-local-by-default';
import extractImports from 'postcss-modules-extract-imports';
import scope from 'postcss-modules-scope';

import Parser from './parser';

export default class Core {
  constructor( plugins ) {
    this.plugins = plugins || Core.defaultPlugins;
  }

  load( sourceString, sourcePath, trace, pathFetcher ) {
    let parser = new Parser( pathFetcher, trace );

    return postcss( this.plugins.concat( [parser.plugin] ) )
      .process( sourceString, { from: '/' + sourcePath } )
      .then( result => {
        return { injectableSource: result.css, exportTokens: parser.exportTokens };
      } );
  }
}

// These three plugins are aliased under this package for simplicity.
Core.localByDefault = localByDefault;
Core.extractImports = extractImports;
Core.scope = scope;
Core.defaultPlugins = [localByDefault, extractImports, scope];