1 files changed, 43 insertions, 0 deletions
diff --git a/tools/node_modules/babel-eslint/node_modules/@babel/types/scripts/generators/generateAsserts.js b/tools/node_modules/babel-eslint/node_modules/@babel/types/scripts/generators/generateAsserts.js
new file mode 100644
index 0000000000..150e8557c7
--- /dev/null
+++ b/tools/node_modules/babel-eslint/node_modules/@babel/types/scripts/generators/generateAsserts.js
@@ -0,0 +1,43 @@
+"use strict";
+const definitions = require("../../lib/definitions");
+
+function addAssertHelper(type) {
+  return `export function assert${type}(node: Object, opts?: Object = {}): void {
+    assert("${type}", node, opts) }
+  `;
+}
+
+module.exports = function generateAsserts() {
+  let output = `// @flow
+/*
+ * This file is auto-generated! Do not modify it directly.
+ * To re-generate run 'make build'
+ */
+import is from "../../validators/is";
+
+function assert(type: string, node: Object, opts?: Object): void {
+  if (!is(type, node, opts)) {
+    throw new Error(
+      \`Expected type "\${type}" with option \${JSON.stringify(opts)}, but instead got "\${node.type}".\`,
+    );
+  }
+}\n\n`;
+
+  Object.keys(definitions.VISITOR_KEYS).forEach(type => {
+    output += addAssertHelper(type);
+  });
+
+  Object.keys(definitions.FLIPPED_ALIAS_KEYS).forEach(type => {
+    output += addAssertHelper(type);
+  });
+
+  Object.keys(definitions.DEPRECATED_KEYS).forEach(type => {
+    const newType = definitions.DEPRECATED_KEYS[type];
+    output += `export function assert${type}(node: Object, opts: Object): void {
+  console.trace("The node type ${type} has been renamed to ${newType}");
+  assert("${type}", node, opts);
+}\n`;
+  });
+
+  return output;
+};