build: group webpack & ignore dist & support yarn1.x (#2551)

.webpack/loaders/jison.js

@@ -0,0 +1,25 @@
+const { Generator } = require('jison');
+const validate = require('schema-utils');
+
+const schema = {
+  title: 'Jison Parser options',
+  type: 'object',
+  properties: {
+    'token-stack': {
+      type: 'boolean',
+    },
+    debug: {
+      type: 'boolean',
+    },
+  },
+  additionalProperties: false,
+};
+
+module.exports = function jisonLoader(source) {
+  const options = this.getOptions();
+  (validate.validate || validate)(schema, options, {
+    name: 'Jison Loader',
+    baseDataPath: 'options',
+  });
+  return new Generator(source, options).generate();
+};