chore: integrate jison into webpack build

jest.config.js

@@ -1,9 +1,13 @@
+const path = require('path')
+
 module.exports = {
   transform: {
-    '^.+\\.jsx?$': './transformer.js'
+    '^.+\\.jsx?$': './transformer.js',
+    '^.+\\.jison$': path.resolve(__dirname, './jisonTransformer.js')
   },
   transformIgnorePatterns: ['/node_modules/(?!dagre-d3-renderer/lib).*\\.js'],
   moduleNameMapper: {
     '\\.(css|scss)$': 'identity-obj-proxy'
-  }
+  },
+  moduleFileExtensions: ['js', 'json', 'jsx', 'ts', 'tsx', 'node', 'jison']
 }

jisonLoader.js

@@ -0,0 +1,6 @@
+const { Generator } = require('jison')
+const { getOptions } = require('loader-utils')
+
+module.exports = function jisonLoader (source) {
+  return new Generator(source, getOptions(this)).generate()
+}

jisonTransformer.js

@@ -0,0 +1,9 @@
+const { Generator } = require('jison')
+
+module.exports = {
+  process (source, filename, config, transformOptions) {
+    return new Generator(source, {
+      'token-stack': true
+    }).generate()
+  }
+}

package.json

@@ -24,7 +24,6 @@
     "dev": "yarn lint && webpack-dev-server --config webpack.config.e2e.js",
     "test": "yarn lint && jest src",
     "test:watch": "jest --watch src",
-    "jison": "node -r @babel/register node_modules/.bin/gulp jison",
     "prepublishOnly": "yarn build && yarn release && yarn test",
     "prepush": "yarn test"
   },
@@ -50,7 +49,6 @@
     "dagre-layout": "^0.8.8",
     "documentation": "^12.0.1",
     "graphlibrary": "^2.2.0",
-    "gulp-print": "^5.0.2",
     "he": "^1.2.0",
     "lodash": "^4.17.11",
     "minify": "^4.1.1",
@@ -67,8 +65,6 @@
     "coveralls": "^3.0.2",
     "css-loader": "^2.0.1",
     "css-to-string-loader": "^0.1.3",
-    "gulp": "^4.0.0",
-    "gulp-jison": "^1.2.0",
     "husky": "^1.2.1",
     "identity-obj-proxy": "^3.0.0",
     "jest": "^23.6.0",