Upgrade vulcanize to 0.7.6.

node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/js-yaml/lib/js-yaml/type/js/function.js

Index: node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/js-yaml/lib/js-yaml/type/js/function.js
diff --git a/node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/js-yaml/lib/js-yaml/type/js/function.js b/node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/js-yaml/lib/js-yaml/type/js/function.js
index 65dcf7f8a9f9603ab26a55bb4bd22d7f8c6a802c..05efaceab6a0861ebbbea234cdf54af8ffb42eb1 100644
--- a/node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/js-yaml/lib/js-yaml/type/js/function.js
+++ b/node_modules/vulcanize/node_modules/update-notifier/node_modules/configstore/node_modules/js-yaml/lib/js-yaml/type/js/function.js
@@ -1,6 +1,5 @@
 'use strict';
 
-
 var esprima;
 
 // Browserified version does not have esprima
@@ -14,18 +13,18 @@ try {
   esprima = require('esprima');
 } catch (_) {
   /*global window */
-  if (window) { esprima = window.esprima; }
+  if (typeof window !== 'undefined') { esprima = window.esprima; }
 }
 
-
 var Type = require('../../type');
 
-
-function resolveJavascriptFunction(state) {
-  /*jslint evil:true*/
+function resolveJavascriptFunction(data) {
+  if (null === data) {
+    return false;
+  }
 
   try {
-    var source = '(' + state.result + ')',
+    var source = '(' + data + ')',
         ast    = esprima.parse(source, { range: true }),
         params = [],
         body;
@@ -37,35 +36,50 @@ function resolveJavascriptFunction(state) {
       return false;
     }
 
-    ast.body[0].expression.params.forEach(function (param) {
-      params.push(param.name);
-    });
-
-    body = ast.body[0].expression.body.range;
-
-    // Esprima's ranges include the first '{' and the last '}' characters on
-    // function expressions. So cut them out.
-    state.result = new Function(params, source.slice(body[0]+1, body[1]-1));
     return true;
   } catch (err) {
     return false;
   }
 }
 
+function constructJavascriptFunction(data) {
+  /*jslint evil:true*/
+
+  var source = '(' + data + ')',
+      ast    = esprima.parse(source, { range: true }),
+      params = [],
+      body;
+
+  if ('Program'             !== ast.type         ||
+      1                     !== ast.body.length  ||
+      'ExpressionStatement' !== ast.body[0].type ||
+      'FunctionExpression'  !== ast.body[0].expression.type) {
+    throw new Error('Failed to resolve function');
+  }
+
+  ast.body[0].expression.params.forEach(function (param) {
+    params.push(param.name);
+  });
+
+  body = ast.body[0].expression.body.range;
+
+  // Esprima's ranges include the first '{' and the last '}' characters on
+  // function expressions. So cut them out.
+  return new Function(params, source.slice(body[0]+1, body[1]-1));
+}
 
 function representJavascriptFunction(object /*, style*/) {
   return object.toString();
 }
 
-
 function isFunction(object) {
   return '[object Function]' === Object.prototype.toString.call(object);
 }
 
-
 module.exports = new Type('tag:yaml.org,2002:js/function', {
-  loadKind: 'scalar',
-  loadResolver: resolveJavascriptFunction,
-  dumpPredicate: isFunction,
-  dumpRepresenter: representJavascriptFunction
+  kind: 'scalar',
+  resolve: resolveJavascriptFunction,
+  construct: constructJavascriptFunction,
+  predicate: isFunction,
+  represent: representJavascriptFunction
 });