1 files changed, 13 insertions, 3 deletions
diff --git a/lib/rewire.js b/lib/rewire.js
index c52bbeb..1d240d4 100644
--- a/lib/rewire.js
+++ b/lib/rewire.js
@@ -1,5 +1,6 @@
 var Module = require("module"),
     fs = require("fs"),
+    path = require("path"),
     getImportGlobalsSrc = require("./getImportGlobalsSrc.js"),
     getDefinePropertySrc = require("./getDefinePropertySrc.js"),
     detectStrictMode = require("./detectStrictMode.js"),
@@ -8,11 +9,15 @@ var Module = require("module"),
 /**
  * Does actual rewiring the module. For further documentation @see index.js
  */
-function internalRewire(parentModulePath, targetPath) {
+function internalRewire(parentModulePath, targetPath, opts) {
     var targetModule,
         prelude,
         appendix,
-        src;
+        src,
+        isTransform;
+
+    opts = typeof opts === "object" ? opts : {};
+    isTransform = !!opts.convertConst;
 
     // Checking params
     if (typeof targetPath !== "string") {
@@ -54,7 +59,12 @@ function internalRewire(parentModulePath, targetPath) {
     }
 
     moduleEnv.inject(prelude, appendix);
-    moduleEnv.load(targetModule);
+
+    if(isTransform) {
+        moduleEnv.compile(targetModule, src, targetPath);
+    } else {
+        moduleEnv.load(targetModule);
+    }
 
     return targetModule.exports;
 }