17             isFile: function (file) {  argument
18                 return Object.prototype.hasOwnProperty.call(files, path.resolve(file));
23             readFileSync: function (file) {  argument
24                 return files[path.resolve(file)];
26             realpathSync: function (file) {  argument
27                 return file;
67             isFile: function (file) {  argument
68                 return Object.prototype.hasOwnProperty.call(files, path.resolve(file));
73             readFileSync: function (file) {  argument
74                 return files[path.resolve(file)];
76             realpathSync: function (file) {  argument
77                 return file;
103             isFile: function (file) {  argument
104                 return Object.prototype.hasOwnProperty.call(files, path.resolve(file));
109             readFileSync: function (file) {  argument
110                 return files[path.resolve(file)];
112             realpathSync: function (file) {  argument
113                 var resolved = path.resolve(file);
159             isFile: function (file) {  argument
160                 return Object.prototype.hasOwnProperty.call(files, path.resolve(file));
165             readFileSync: useReadPackage ? null : function (file) {  argument
166                 return files[path.resolve(file)];
168             realpathSync: function (file) {  argument
169                 return file;
182     var readPackageSync = function (readFileSync, file) {  argument
183         if (file.indexOf(path.join('bar', 'package.json')) >= 0) {
186         return JSON.parse(files[path.resolve(file)]);