3 files changed, 54 insertions, 3 deletions
diff --git a/node_modules/istanbul-lib-hook/CHANGELOG.md b/node_modules/istanbul-lib-hook/CHANGELOG.md
index 801bc7039..6083a4886 100644
--- a/node_modules/istanbul-lib-hook/CHANGELOG.md
+++ b/node_modules/istanbul-lib-hook/CHANGELOG.md
@@ -1,7 +1,18 @@
 # Change Log
 
 All notable changes to this project will be documented in this file.
-See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+<a name="1.1.0"></a>
+# [1.1.0](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-hook@1.0.7...istanbul-lib-hook@1.1.0) (2017-10-21)
+
+
+### Features
+
+* hook vm.runInContext ([#90](https://github.com/istanbuljs/istanbuljs/issues/90)) ([9659936](https://github.com/istanbuljs/istanbuljs/commit/9659936))
+
+
+
 
 <a name="1.0.7"></a>
 ## [1.0.7](https://github.com/istanbuljs/istanbuljs/compare/istanbul-lib-hook@1.0.6...istanbul-lib-hook@1.0.7) (2017-05-27)
diff --git a/node_modules/istanbul-lib-hook/lib/hook.js b/node_modules/istanbul-lib-hook/lib/hook.js
index ff1119d8e..df3162fa2 100644
--- a/node_modules/istanbul-lib-hook/lib/hook.js
+++ b/node_modules/istanbul-lib-hook/lib/hook.js
@@ -6,7 +6,8 @@ var path = require('path'),
     vm = require('vm'),
     appendTransform = require('append-transform'),
     originalCreateScript = vm.createScript,
-    originalRunInThisContext = vm.runInThisContext;
+    originalRunInThisContext = vm.runInThisContext,
+    originalRunInContext = vm.runInContext;
 
 function transformFn(matcher, transformer, verbose) {
 
@@ -150,6 +151,43 @@ function unhookRunInThisContext() {
     vm.runInThisContext = originalRunInThisContext;
 }
 /**
+ * hooks `vm.runInContext` to return transformed code.
+ * @method hookRunInContext
+ * @static
+ * @param matcher {Function(filePath)} a function that is called with the filename passed to `vm.createScript`
+ *  Should return a truthy value when transformations need to be applied to the code, a falsy value otherwise
+ * @param transformer {Function(code, filePath)} a function called with the original code and the filename passed to
+ *  `vm.createScript`. Should return the transformed code.
+ * @param opts {Object} [opts={}] options
+ * @param {Boolean} [options.verbose] write a line to standard error every time the transformer is called
+ */
+function hookRunInContext(matcher, transformer, opts) {
+    opts = opts || {};
+    var fn = transformFn(matcher, transformer, opts.verbose);
+    vm.runInContext = function (code, context, file) {
+        var ret = fn(code, file);
+        var coverageVariable = opts.coverageVariable || '__coverage__';
+        // Refer coverage variable in context to global coverage variable.
+        // So that coverage data will be written in global coverage variable for unit tests run in vm.runInContext.
+        // If all unit tests are run in vm.runInContext, no global coverage variable will be generated.
+        // Thus initialize a global coverage variable here.
+        if (!global[coverageVariable]) {
+            global[coverageVariable] = {};
+        }
+        context[coverageVariable] = global[coverageVariable];
+        return originalRunInContext(ret.code, context, file);
+    };
+    
+}
+/**
+ * unhooks vm.runInContext, restoring it to its original state.
+ * @method unhookRunInContext
+ * @static
+ */
+function unhookRunInContext() {
+    vm.runInContext = originalRunInContext;
+}
+/**
  * istanbul-lib-hook provides mechanisms to transform code in the scope of `require`,
  * `vm.createScript`, `vm.runInThisContext` etc.
  *
@@ -177,6 +215,8 @@ module.exports = {
     unhookCreateScript: unhookCreateScript,
     hookRunInThisContext : hookRunInThisContext,
     unhookRunInThisContext : unhookRunInThisContext,
+    hookRunInContext : hookRunInContext,
+    unhookRunInContext : unhookRunInContext,
     unloadRequireCache: unloadRequireCache
 };
 
diff --git a/node_modules/istanbul-lib-hook/package.json b/node_modules/istanbul-lib-hook/package.json
index 426989f15..811343d74 100644
--- a/node_modules/istanbul-lib-hook/package.json
+++ b/node_modules/istanbul-lib-hook/package.json
@@ -1,6 +1,6 @@
 {
   "name": "istanbul-lib-hook",
-  "version": "1.0.7",
+  "version": "1.1.0",
   "description": "Hooks for require, vm and script used in istanbul",
   "author": "Krishnan Anantheswaran <kananthmail-github@yahoo.com>",
   "main": "index.js",