RAHHH

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

@@ -0,0 +1,36 @@
+var assert = require('./assert');
+var isString = require('./isString');
+var isFunction = require('./isFunction');
+var forbidNewOperator = require('./forbidNewOperator');
+
+module.exports = function irreducible(name, predicate) {
+
+  if (process.env.NODE_ENV !== 'production') {
+    assert(isString(name), function () { return 'Invalid argument name ' + assert.stringify(name) + ' supplied to irreducible(name, predicate) (expected a string)'; });
+    assert(isFunction(predicate), 'Invalid argument predicate ' + assert.stringify(predicate) + ' supplied to irreducible(name, predicate) (expected a function)');
+  }
+
+  function Irreducible(value, path) {
+
+    if (process.env.NODE_ENV !== 'production') {
+      forbidNewOperator(this, Irreducible);
+      path = path || [name];
+      assert(predicate(value), function () { return 'Invalid value ' + assert.stringify(value) + ' supplied to ' + path.join('/'); });
+    }
+
+    return value;
+  }
+
+  Irreducible.meta = {
+    kind: 'irreducible',
+    name: name,
+    predicate: predicate,
+    identity: true
+  };
+
+  Irreducible.displayName = name;
+
+  Irreducible.is = predicate;
+
+  return Irreducible;
+};