Add cst parser

.gitignore

@@ -1 +1,2 @@
 /dist
+/node_modules/*

package.json

@@ -27,6 +27,7 @@
     "babylon": "^5.8.22",
     "classnames": "^2.1.3",
     "codemirror": "^5.1.0",
+    "cst": "0.0.11",
     "escodegen": "^1.4.1",
     "espree": "^2.2.4",
     "esprima": "^2.5",

partition.json

@@ -2,6 +2,7 @@
   "dist/app.js": ["./src/app"],
   "dist/parsers/acorn.js": ["acorn"],
   "dist/parsers/babel.js": ["babylon", "babel-core", "acorn-to-esprima"],
+  "dist/parsers/cst.js": ["cst"],
   "dist/parsers/esprima.js": ["esprima"],
   "dist/parsers/espree.js": ["espree"],
   "dist/parsers/recast.js": ["recast"],

src/getFocusPath.js

@@ -3,6 +3,7 @@ function isInRange(range, pos) {
 }
 
 export default function getFocusPath(node, pos, parser, path) {
+  if (parser.id === 'cst') { return []; }
   path = path || [];
   let range = parser.nodeToRange(node);
   if (range) {

src/parsers/cst.js

@@ -0,0 +1,62 @@
+import React from 'react';
+import pkg from 'cst/package.json';
+import loadAndExecute from './utils/loadAndExecute';
+import * as LocalStorage from '../LocalStorage';
+import SettingsRenderer from './utils/SettingsRenderer';
+
+const ID = 'cst';
+
+const options = {
+  strictMode: true
+};
+
+export default {
+  id: ID,
+  displayName: ID,
+  version: pkg.version,
+  homepage: pkg.homepage,
+
+  parse(code) {
+    return loadAndExecute(
+      ['cst'],
+      cst => {
+        let parser = new cst.Parser();
+        if (!options.strictMode) {
+          parser.disableStrictMode();
+        }
+        return parser.parse(code);
+      }
+    );
+  },
+
+  nodeToRange(node) {
+    return node.range;
+  },
+
+  renderSettings() {
+    return Settings();
+  },
+};
+
+let parserSettings = [
+  'strictMode',
+];
+
+function changeOption(name, {target}) {
+  if (name === 'strictMode') {
+    options.strictMode = target.value;
+  }
+  LocalStorage.setParserSettings(ID, options);
+}
+
+function Settings() {
+  return (
+    <div>
+      {SettingsRenderer({
+        settings: parserSettings,
+        values: options,
+        onChange: changeOption,
+      })}
+    </div>
+  );
+}

src/parsers/index.js

@@ -2,6 +2,7 @@ import esprima from './esprima';
 import espree from './espree';
 import acorn from './acorn';
 import babylon from './babylon';
+import cst from './cst';
 import recast from './recast';
 import shift from './shift';
 import babelEslint from './babel-eslint';
@@ -10,6 +11,7 @@ export var parsers = [
   acorn,
   babelEslint,
   babylon,
+  cst,
   espree,
   esprima,
   recast,