module: expose Module._runInThisContext

lib/module.js

@@ -461,6 +461,10 @@ Module.prototype.require = function(path) {
 var resolvedArgv;
 
 
+// Overridable method, may be useful for caching compilation results
+Module._runInThisContext = runInThisContext;
+
+
 // Run the file contents in the correct scope or sandbox. Expose
 // the correct helper variables (require, module, exports) to
 // the file.
@@ -497,7 +501,7 @@ Module.prototype._compile = function(content, filename) {
   // create wrapper function
   var wrapper = Module.wrap(content);
 
-  var compiledWrapper = runInThisContext(wrapper, {
+  var compiledWrapper = Module._runInThisContext(wrapper, {
     filename: filename,
     lineOffset: 0,
     displayErrors: true

test/fixtures/empty.js

@@ -0,0 +1 @@
+// Intentionally empty

test/parallel/test-module-run-in-this-context.js

@@ -0,0 +1,17 @@
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const vm = require('vm');
+const path = require('path');
+const Module = require('module');
+
+let counter = 0;
+
+Module._runInThisContext = function runInThisContext(source, options) {
+  counter++;
+  return vm.runInThisContext(source, options);
+};
+
+const empty = require(path.join(common.fixturesDir, 'empty.js'));
+
+assert.equal(counter, 1);