RAHHH

backend/frontend/node_modules/tcomb/lib/isIdentity.js

@@ -0,0 +1,16 @@
+var assert = require('./assert');
+var Boolean = require('./Boolean');
+var isType = require('./isType');
+var getTypeName = require('./getTypeName');
+
+// return true if the type constructor behaves like the identity function
+module.exports = function isIdentity(type) {
+  if (isType(type)) {
+    if (process.env.NODE_ENV !== 'production') {
+      assert(Boolean.is(type.meta.identity), function () { return 'Invalid meta identity ' + assert.stringify(type.meta.identity) + ' supplied to type ' + getTypeName(type); });
+    }
+    return type.meta.identity;
+  }
+  // for tcomb the other constructors, like ES6 classes, are identity-like
+  return true;
+};