@typescript/vfs - npm Package Compare versions

Comparing version 1.3.6 to 1.4.0

dist/index.d.ts

@@ -38,3 +38,3 @@ declare type System = import("typescript").System;
  */
-export declare const createDefaultMapFromNodeModules: (compilerOptions: CompilerOptions, ts?: typeof import("typescript")) => Map<string, string>;
+export declare const createDefaultMapFromNodeModules: (compilerOptions: CompilerOptions, ts?: typeof import("typescript"), tsLibDirectory?: string) => Map<string, string>;
 /**
@@ -69,3 +69,3 @@ * Adds recursively files from the FS into the map based on the folder
  */
-export declare function createFSBackedSystem(files: Map<string, string>, _projectRoot: string, ts: TS): System;
+export declare function createFSBackedSystem(files: Map<string, string>, _projectRoot: string, ts: TS, tsLibDirectory?: string): System;
 /**
@@ -72,0 +72,0 @@ * Creates an in-memory CompilerHost -which is essentially an extra wrapper to System

dist/vfs.cjs.development.js

@@ -139,3 +139,3 @@ 'use strict';
 
-var createDefaultMapFromNodeModules = function createDefaultMapFromNodeModules(compilerOptions, ts) {
+var createDefaultMapFromNodeModules = function createDefaultMapFromNodeModules(compilerOptions, ts, tsLibDirectory) {
   var tsModule = ts || require("typescript");
@@ -147,3 +147,3 @@
   var getLib = function getLib(name) {
-    var lib = path.dirname(require.resolve("typescript"));
+    var lib = tsLibDirectory || path.dirname(require.resolve("typescript"));
     return fs.readFileSync(path.join(lib, name), "utf8");
@@ -375,3 +375,3 @@ };
 
-function createFSBackedSystem(files, _projectRoot, ts) {
+function createFSBackedSystem(files, _projectRoot, ts, tsLibDirectory) {
   // We need to make an isolated folder for the tsconfig, but also need to be able to resolve the
@@ -383,3 +383,3 @@ // existing node_modules structures going back through the history
   var nodeSys = ts.sys;
-  var tsLib = path.dirname(require.resolve("typescript"));
+  var tsLib = tsLibDirectory != null ? tsLibDirectory : path.dirname(require.resolve("typescript"));
   return {
@@ -386,0 +386,0 @@ // @ts-ignore

dist/vfs.cjs.production.min.js

@@ -1,2 +0,2 @@
-"use strict";function e(){return(e=Object.assign||function(e){for(var t=1;t<arguments.length;t++){var r=arguments[t];for(var i in r)Object.prototype.hasOwnProperty.call(r,i)&&(e[i]=r[i])}return e}).apply(this,arguments)}Object.defineProperty(exports,"__esModule",{value:!0});var t=!1;try{t="undefined"!=typeof localStorage}catch(e){}var r="undefined"!=typeof process,i=t&&localStorage.getItem("DEBUG")||r&&process.env.DEBUG?console.log:function(e){return""},n=function(e,t){var r,i=e.lib||[],n=["lib.d.ts","lib.dom.d.ts","lib.dom.iterable.d.ts","lib.webworker.d.ts","lib.webworker.importscripts.d.ts","lib.scripthost.d.ts","lib.es5.d.ts","lib.es6.d.ts","lib.es2015.collection.d.ts","lib.es2015.core.d.ts","lib.es2015.d.ts","lib.es2015.generator.d.ts","lib.es2015.iterable.d.ts","lib.es2015.promise.d.ts","lib.es2015.proxy.d.ts","lib.es2015.reflect.d.ts","lib.es2015.symbol.d.ts","lib.es2015.symbol.wellknown.d.ts","lib.es2016.array.include.d.ts","lib.es2016.d.ts","lib.es2016.full.d.ts","lib.es2017.d.ts","lib.es2017.full.d.ts","lib.es2017.intl.d.ts","lib.es2017.object.d.ts","lib.es2017.sharedmemory.d.ts","lib.es2017.string.d.ts","lib.es2017.typedarrays.d.ts","lib.es2018.asyncgenerator.d.ts","lib.es2018.asynciterable.d.ts","lib.es2018.d.ts","lib.es2018.full.d.ts","lib.es2018.intl.d.ts","lib.es2018.promise.d.ts","lib.es2018.regexp.d.ts","lib.es2019.array.d.ts","lib.es2019.d.ts","lib.es2019.full.d.ts","lib.es2019.object.d.ts","lib.es2019.string.d.ts","lib.es2019.symbol.d.ts","lib.es2020.d.ts","lib.es2020.full.d.ts","lib.es2020.string.d.ts","lib.es2020.symbol.wellknown.d.ts","lib.es2020.bigint.d.ts","lib.es2020.promise.d.ts","lib.es2020.sharedmemory.d.ts","lib.es2020.intl.d.ts","lib.es2021.d.ts","lib.es2021.full.d.ts","lib.es2021.promise.d.ts","lib.es2021.string.d.ts","lib.es2021.weakref.d.ts","lib.esnext.d.ts","lib.esnext.full.d.ts","lib.esnext.intl.d.ts","lib.esnext.promise.d.ts","lib.esnext.string.d.ts","lib.esnext.weakref.d.ts"],s=t.ScriptTarget[e.target||t.ScriptTarget.ES5],o=n.filter((function(e){return e.startsWith("lib."+s.toLowerCase())})),l=n.indexOf(o.pop()),a=((r=i.map((function(e){var t=n.filter((function(t){return t.startsWith("lib."+e.toLowerCase())}));return 0===t.length?0:n.indexOf(t.pop())})))&&r.length?r.reduce((function(e,t){return t>e?t:e})):void 0)||0,u=Math.max(l,a);return n.slice(0,u+1)},s=function(e,t){var r=d(),i=p();(function e(t){var n=[];return i.readdirSync(t).forEach((function(s){s=r.join(t,s);var o=i.statSync(s);o&&o.isDirectory()?n=n.concat(e(s)):n.push(s)})),n})(t).forEach((function(n){var s="/node_modules/@types"+n.replace(t,""),o=i.readFileSync(n,"utf8");[".ts",".tsx"].includes(r.extname(s))&&e.set(s,o)}))};function o(e){throw new Error("Method '"+e+"' is not implemented.")}function l(e,t){return function(){for(var r=arguments.length,n=new Array(r),s=0;s<r;s++)n[s]=arguments[s];var o=t.apply(void 0,n),l="string"==typeof o?o.slice(0,80)+"...":o;return i.apply(void 0,["> "+e].concat(n)),i("< "+l),o}}var a=function(t){return e({},t.getDefaultCompilerOptions(),{jsx:t.JsxEmit.React,strict:!0,esModuleInterop:!0,module:t.ModuleKind.ESNext,suppressOutputPathCheck:!0,skipLibCheck:!0,skipDefaultLibCheck:!0,moduleResolution:t.ModuleResolutionKind.NodeJs})},u=function(e){return e.replace("/","/lib.").toLowerCase()};function c(t,r,i){var n=new Map;return{compilerHost:e({},t,{getCanonicalFileName:function(e){return e},getDefaultLibFileName:function(){return"/"+i.getDefaultLibFileName(r)},getDirectories:function(){return[]},getNewLine:function(){return t.newLine},getSourceFile:function(e){return n.get(e)||(s=i.createSourceFile(e,t.readFile(e),r.target||a(i).target,!1),n.set(s.fileName,s),s);var s},useCaseSensitiveFileNames:function(){return t.useCaseSensitiveFileNames}}),updateFile:function(e){var r=n.has(e.fileName);return t.writeFile(e.fileName,e.text),n.set(e.fileName,e),r}}}function f(t,r,i,n,s){var o=[].concat(r),l=c(t,i,n),a=l.compilerHost,u=l.updateFile,f=new Map,d=0;return{languageServiceHost:e({},a,{getProjectVersion:function(){return d.toString()},getCompilationSettings:function(){return i},getCustomTransformers:function(){return s},getScriptFileNames:function(){return o.slice()},getScriptSnapshot:function(e){var r=t.readFile(e);if(r)return n.ScriptSnapshot.fromString(r)},getScriptVersion:function(e){return f.get(e)||"0"},writeFile:t.writeFile}),updateFile:function(e){d++,f.set(e.fileName,d.toString()),o.includes(e.fileName)||o.push(e.fileName),u(e)}}}var d=function(){return require(String.fromCharCode(112,97,116,104))},p=function(){return require(String.fromCharCode(102,115))};exports.addAllFilesFromFolder=s,exports.addFilesForTypesIntoFolder=function(e){return s(e,"node_modules/@types")},exports.createDefaultMapFromCDN=function(e,t,r,i,s,o,l){var a=o||fetch,u=new Map,c=n(e,i),f="https://typescript.azureedge.net/cdn/"+t+"/typescript/lib/";return(r?function(){var e=l||localStorage;return Object.keys(localStorage).forEach((function(r){r.startsWith("ts-lib-")&&!r.startsWith("ts-lib-"+t)&&e.removeItem(r)})),Promise.all(c.map((function(r){var i,n="ts-lib-"+t+"-"+r,o=e.getItem(n);return o?Promise.resolve((i=o,s?s.decompressFromUTF16(i):i)):a(f+r).then((function(e){return e.text()})).then((function(t){var r;return e.setItem(n,(r=t,s?s.compressToUTF16(r):r)),t}))}))).then((function(e){e.forEach((function(e,t){u.set("/"+c[t],e)}))}))}:function(){return Promise.all(c.map((function(e){return a(f+e).then((function(e){return e.text()}))}))).then((function(e){e.forEach((function(e,t){return u.set("/"+c[t],e)}))}))})().then((function(){return u}))},exports.createDefaultMapFromNodeModules=function(e,t){var r=t||require("typescript"),i=d(),s=p(),o=n(e,r),l=new Map;return o.forEach((function(e){l.set("/"+e,function(e){var t=i.dirname(require.resolve("typescript"));return s.readFileSync(i.join(t,e),"utf8")}(e))})),l},exports.createFSBackedSystem=function(e,t,r){var i=t+"/vfs",n=d(),s=r.sys,a=n.dirname(require.resolve("typescript"));return{name:"fs-vfs",root:i,args:[],createDirectory:function(){return o("createDirectory")},directoryExists:l("directoryExists",(function(t){return Array.from(e.keys()).some((function(e){return e.startsWith(t)}))||s.directoryExists(t)})),exit:s.exit,fileExists:l("fileExists",(function(t){if(e.has(t))return!0;if(t.includes("tsconfig.json")||t.includes("tsconfig.json"))return!1;if(t.startsWith("/lib")){var r=a+"/"+t.replace("/","");return s.fileExists(r)}return s.fileExists(t)})),getCurrentDirectory:function(){return i},getDirectories:s.getDirectories,getExecutingFilePath:function(){return o("getExecutingFilePath")},readDirectory:l("readDirectory",(function(){return"/"===(arguments.length<=0?void 0:arguments[0])?Array.from(e.keys()):s.readDirectory.apply(s,arguments)})),readFile:l("readFile",(function(t){if(e.has(t))return e.get(t);if(t.startsWith("/lib")){var r=a+"/"+t.replace("/",""),i=s.readFile(r);if(!i){var n=s.readDirectory(a);throw new Error("TSVFS: A request was made for "+r+" but there wasn't a file found in the file map. You likely have a mismatch in the compiler options for the CDN download vs the compiler program. Existing Libs: "+n+".")}return i}return s.readFile(t)})),resolvePath:function(t){return e.has(t)?t:s.resolvePath(t)},newLine:"\n",useCaseSensitiveFileNames:!0,write:function(){return o("write")},writeFile:function(t,r){e.set(t,r)}}},exports.createSystem=function(e){return{args:[],createDirectory:function(){return o("createDirectory")},directoryExists:l("directoryExists",(function(t){return Array.from(e.keys()).some((function(e){return e.startsWith(t)}))})),exit:function(){return o("exit")},fileExists:l("fileExists",(function(t){return e.has(t)||e.has(u(t))})),getCurrentDirectory:function(){return"/"},getDirectories:function(){return[]},getExecutingFilePath:function(){return o("getExecutingFilePath")},readDirectory:l("readDirectory",(function(t){return"/"===t?Array.from(e.keys()):[]})),readFile:l("readFile",(function(t){return e.get(t)||e.get(u(t))})),resolvePath:function(e){return e},newLine:"\n",useCaseSensitiveFileNames:!0,write:function(){return o("write")},writeFile:function(t,r){e.set(t,r)}}},exports.createVirtualCompilerHost=c,exports.createVirtualLanguageServiceHost=f,exports.createVirtualTypeScriptEnvironment=function(t,r,i,n,s){void 0===n&&(n={});var o=e({},a(i),n),l=f(t,r,o,i,s),u=l.updateFile,d=i.createLanguageService(l.languageServiceHost),p=d.getCompilerOptionsDiagnostics();if(p.length){var g=c(t,n,i);throw new Error(i.formatDiagnostics(p,g.compilerHost))}return{name:"vfs",sys:t,languageService:d,getSourceFile:function(e){var t;return null==(t=d.getProgram())?void 0:t.getSourceFile(e)},createFile:function(e,t){u(i.createSourceFile(e,t,o.target,!1))},updateFile:function(e,t,r){var n=d.getProgram().getSourceFile(e);if(!n)throw new Error("Did not find a source file for "+e);var s=n.text,o=null!=r?r:i.createTextSpan(0,s.length),l=s.slice(0,o.start)+t+s.slice(o.start+o.length),a=i.updateSourceFile(n,l,{span:o,newLength:t.length});u(a)}}},exports.knownLibFilesForCompilerOptions=n;
+"use strict";function e(){return(e=Object.assign||function(e){for(var t=1;t<arguments.length;t++){var r=arguments[t];for(var i in r)Object.prototype.hasOwnProperty.call(r,i)&&(e[i]=r[i])}return e}).apply(this,arguments)}Object.defineProperty(exports,"__esModule",{value:!0});var t=!1;try{t="undefined"!=typeof localStorage}catch(e){}var r="undefined"!=typeof process,i=t&&localStorage.getItem("DEBUG")||r&&process.env.DEBUG?console.log:function(e){return""},n=function(e,t){var r,i=e.lib||[],n=["lib.d.ts","lib.dom.d.ts","lib.dom.iterable.d.ts","lib.webworker.d.ts","lib.webworker.importscripts.d.ts","lib.scripthost.d.ts","lib.es5.d.ts","lib.es6.d.ts","lib.es2015.collection.d.ts","lib.es2015.core.d.ts","lib.es2015.d.ts","lib.es2015.generator.d.ts","lib.es2015.iterable.d.ts","lib.es2015.promise.d.ts","lib.es2015.proxy.d.ts","lib.es2015.reflect.d.ts","lib.es2015.symbol.d.ts","lib.es2015.symbol.wellknown.d.ts","lib.es2016.array.include.d.ts","lib.es2016.d.ts","lib.es2016.full.d.ts","lib.es2017.d.ts","lib.es2017.full.d.ts","lib.es2017.intl.d.ts","lib.es2017.object.d.ts","lib.es2017.sharedmemory.d.ts","lib.es2017.string.d.ts","lib.es2017.typedarrays.d.ts","lib.es2018.asyncgenerator.d.ts","lib.es2018.asynciterable.d.ts","lib.es2018.d.ts","lib.es2018.full.d.ts","lib.es2018.intl.d.ts","lib.es2018.promise.d.ts","lib.es2018.regexp.d.ts","lib.es2019.array.d.ts","lib.es2019.d.ts","lib.es2019.full.d.ts","lib.es2019.object.d.ts","lib.es2019.string.d.ts","lib.es2019.symbol.d.ts","lib.es2020.d.ts","lib.es2020.full.d.ts","lib.es2020.string.d.ts","lib.es2020.symbol.wellknown.d.ts","lib.es2020.bigint.d.ts","lib.es2020.promise.d.ts","lib.es2020.sharedmemory.d.ts","lib.es2020.intl.d.ts","lib.es2021.d.ts","lib.es2021.full.d.ts","lib.es2021.promise.d.ts","lib.es2021.string.d.ts","lib.es2021.weakref.d.ts","lib.esnext.d.ts","lib.esnext.full.d.ts","lib.esnext.intl.d.ts","lib.esnext.promise.d.ts","lib.esnext.string.d.ts","lib.esnext.weakref.d.ts"],s=t.ScriptTarget[e.target||t.ScriptTarget.ES5],o=n.filter((function(e){return e.startsWith("lib."+s.toLowerCase())})),l=n.indexOf(o.pop()),a=((r=i.map((function(e){var t=n.filter((function(t){return t.startsWith("lib."+e.toLowerCase())}));return 0===t.length?0:n.indexOf(t.pop())})))&&r.length?r.reduce((function(e,t){return t>e?t:e})):void 0)||0,u=Math.max(l,a);return n.slice(0,u+1)},s=function(e,t){var r=d(),i=p();(function e(t){var n=[];return i.readdirSync(t).forEach((function(s){s=r.join(t,s);var o=i.statSync(s);o&&o.isDirectory()?n=n.concat(e(s)):n.push(s)})),n})(t).forEach((function(n){var s="/node_modules/@types"+n.replace(t,""),o=i.readFileSync(n,"utf8");[".ts",".tsx"].includes(r.extname(s))&&e.set(s,o)}))};function o(e){throw new Error("Method '"+e+"' is not implemented.")}function l(e,t){return function(){for(var r=arguments.length,n=new Array(r),s=0;s<r;s++)n[s]=arguments[s];var o=t.apply(void 0,n),l="string"==typeof o?o.slice(0,80)+"...":o;return i.apply(void 0,["> "+e].concat(n)),i("< "+l),o}}var a=function(t){return e({},t.getDefaultCompilerOptions(),{jsx:t.JsxEmit.React,strict:!0,esModuleInterop:!0,module:t.ModuleKind.ESNext,suppressOutputPathCheck:!0,skipLibCheck:!0,skipDefaultLibCheck:!0,moduleResolution:t.ModuleResolutionKind.NodeJs})},u=function(e){return e.replace("/","/lib.").toLowerCase()};function c(t,r,i){var n=new Map;return{compilerHost:e({},t,{getCanonicalFileName:function(e){return e},getDefaultLibFileName:function(){return"/"+i.getDefaultLibFileName(r)},getDirectories:function(){return[]},getNewLine:function(){return t.newLine},getSourceFile:function(e){return n.get(e)||(s=i.createSourceFile(e,t.readFile(e),r.target||a(i).target,!1),n.set(s.fileName,s),s);var s},useCaseSensitiveFileNames:function(){return t.useCaseSensitiveFileNames}}),updateFile:function(e){var r=n.has(e.fileName);return t.writeFile(e.fileName,e.text),n.set(e.fileName,e),r}}}function f(t,r,i,n,s){var o=[].concat(r),l=c(t,i,n),a=l.compilerHost,u=l.updateFile,f=new Map,d=0;return{languageServiceHost:e({},a,{getProjectVersion:function(){return d.toString()},getCompilationSettings:function(){return i},getCustomTransformers:function(){return s},getScriptFileNames:function(){return o.slice()},getScriptSnapshot:function(e){var r=t.readFile(e);if(r)return n.ScriptSnapshot.fromString(r)},getScriptVersion:function(e){return f.get(e)||"0"},writeFile:t.writeFile}),updateFile:function(e){d++,f.set(e.fileName,d.toString()),o.includes(e.fileName)||o.push(e.fileName),u(e)}}}var d=function(){return require(String.fromCharCode(112,97,116,104))},p=function(){return require(String.fromCharCode(102,115))};exports.addAllFilesFromFolder=s,exports.addFilesForTypesIntoFolder=function(e){return s(e,"node_modules/@types")},exports.createDefaultMapFromCDN=function(e,t,r,i,s,o,l){var a=o||fetch,u=new Map,c=n(e,i),f="https://typescript.azureedge.net/cdn/"+t+"/typescript/lib/";return(r?function(){var e=l||localStorage;return Object.keys(localStorage).forEach((function(r){r.startsWith("ts-lib-")&&!r.startsWith("ts-lib-"+t)&&e.removeItem(r)})),Promise.all(c.map((function(r){var i,n="ts-lib-"+t+"-"+r,o=e.getItem(n);return o?Promise.resolve((i=o,s?s.decompressFromUTF16(i):i)):a(f+r).then((function(e){return e.text()})).then((function(t){var r;return e.setItem(n,(r=t,s?s.compressToUTF16(r):r)),t}))}))).then((function(e){e.forEach((function(e,t){u.set("/"+c[t],e)}))}))}:function(){return Promise.all(c.map((function(e){return a(f+e).then((function(e){return e.text()}))}))).then((function(e){e.forEach((function(e,t){return u.set("/"+c[t],e)}))}))})().then((function(){return u}))},exports.createDefaultMapFromNodeModules=function(e,t,r){var i=t||require("typescript"),s=d(),o=p(),l=n(e,i),a=new Map;return l.forEach((function(e){a.set("/"+e,function(e){var t=r||s.dirname(require.resolve("typescript"));return o.readFileSync(s.join(t,e),"utf8")}(e))})),a},exports.createFSBackedSystem=function(e,t,r,i){var n=t+"/vfs",s=d(),a=r.sys,u=null!=i?i:s.dirname(require.resolve("typescript"));return{name:"fs-vfs",root:n,args:[],createDirectory:function(){return o("createDirectory")},directoryExists:l("directoryExists",(function(t){return Array.from(e.keys()).some((function(e){return e.startsWith(t)}))||a.directoryExists(t)})),exit:a.exit,fileExists:l("fileExists",(function(t){if(e.has(t))return!0;if(t.includes("tsconfig.json")||t.includes("tsconfig.json"))return!1;if(t.startsWith("/lib")){var r=u+"/"+t.replace("/","");return a.fileExists(r)}return a.fileExists(t)})),getCurrentDirectory:function(){return n},getDirectories:a.getDirectories,getExecutingFilePath:function(){return o("getExecutingFilePath")},readDirectory:l("readDirectory",(function(){return"/"===(arguments.length<=0?void 0:arguments[0])?Array.from(e.keys()):a.readDirectory.apply(a,arguments)})),readFile:l("readFile",(function(t){if(e.has(t))return e.get(t);if(t.startsWith("/lib")){var r=u+"/"+t.replace("/",""),i=a.readFile(r);if(!i){var n=a.readDirectory(u);throw new Error("TSVFS: A request was made for "+r+" but there wasn't a file found in the file map. You likely have a mismatch in the compiler options for the CDN download vs the compiler program. Existing Libs: "+n+".")}return i}return a.readFile(t)})),resolvePath:function(t){return e.has(t)?t:a.resolvePath(t)},newLine:"\n",useCaseSensitiveFileNames:!0,write:function(){return o("write")},writeFile:function(t,r){e.set(t,r)}}},exports.createSystem=function(e){return{args:[],createDirectory:function(){return o("createDirectory")},directoryExists:l("directoryExists",(function(t){return Array.from(e.keys()).some((function(e){return e.startsWith(t)}))})),exit:function(){return o("exit")},fileExists:l("fileExists",(function(t){return e.has(t)||e.has(u(t))})),getCurrentDirectory:function(){return"/"},getDirectories:function(){return[]},getExecutingFilePath:function(){return o("getExecutingFilePath")},readDirectory:l("readDirectory",(function(t){return"/"===t?Array.from(e.keys()):[]})),readFile:l("readFile",(function(t){return e.get(t)||e.get(u(t))})),resolvePath:function(e){return e},newLine:"\n",useCaseSensitiveFileNames:!0,write:function(){return o("write")},writeFile:function(t,r){e.set(t,r)}}},exports.createVirtualCompilerHost=c,exports.createVirtualLanguageServiceHost=f,exports.createVirtualTypeScriptEnvironment=function(t,r,i,n,s){void 0===n&&(n={});var o=e({},a(i),n),l=f(t,r,o,i,s),u=l.updateFile,d=i.createLanguageService(l.languageServiceHost),p=d.getCompilerOptionsDiagnostics();if(p.length){var g=c(t,n,i);throw new Error(i.formatDiagnostics(p,g.compilerHost))}return{name:"vfs",sys:t,languageService:d,getSourceFile:function(e){var t;return null==(t=d.getProgram())?void 0:t.getSourceFile(e)},createFile:function(e,t){u(i.createSourceFile(e,t,o.target,!1))},updateFile:function(e,t,r){var n=d.getProgram().getSourceFile(e);if(!n)throw new Error("Did not find a source file for "+e);var s=n.text,o=null!=r?r:i.createTextSpan(0,s.length),l=s.slice(0,o.start)+t+s.slice(o.start+o.length),a=i.updateSourceFile(n,l,{span:o,newLength:t.length});u(a)}}},exports.knownLibFilesForCompilerOptions=n;
 //# sourceMappingURL=vfs.cjs.production.min.js.map

dist/vfs.esm.js

@@ -135,3 +135,3 @@ function _extends() {
 
-var createDefaultMapFromNodeModules = function createDefaultMapFromNodeModules(compilerOptions, ts) {
+var createDefaultMapFromNodeModules = function createDefaultMapFromNodeModules(compilerOptions, ts, tsLibDirectory) {
   var tsModule = ts || require("typescript");
@@ -143,3 +143,3 @@
   var getLib = function getLib(name) {
-    var lib = path.dirname(require.resolve("typescript"));
+    var lib = tsLibDirectory || path.dirname(require.resolve("typescript"));
     return fs.readFileSync(path.join(lib, name), "utf8");
@@ -371,3 +371,3 @@ };
 
-function createFSBackedSystem(files, _projectRoot, ts) {
+function createFSBackedSystem(files, _projectRoot, ts, tsLibDirectory) {
   // We need to make an isolated folder for the tsconfig, but also need to be able to resolve the
@@ -379,3 +379,3 @@ // existing node_modules structures going back through the history
   var nodeSys = ts.sys;
-  var tsLib = path.dirname(require.resolve("typescript"));
+  var tsLib = tsLibDirectory != null ? tsLibDirectory : path.dirname(require.resolve("typescript"));
   return {
@@ -382,0 +382,0 @@ // @ts-ignore

dist/vfs.globals.js

@@ -135,3 +135,3 @@ function _extends() {
 
-var createDefaultMapFromNodeModules = function createDefaultMapFromNodeModules(compilerOptions, ts) {
+var createDefaultMapFromNodeModules = function createDefaultMapFromNodeModules(compilerOptions, ts, tsLibDirectory) {
   var tsModule = ts || require("typescript");
@@ -143,3 +143,3 @@
   var getLib = function getLib(name) {
-    var lib = path.dirname(require.resolve("typescript"));
+    var lib = tsLibDirectory || path.dirname(require.resolve("typescript"));
     return fs.readFileSync(path.join(lib, name), "utf8");
@@ -371,3 +371,3 @@ };
 
-function createFSBackedSystem(files, _projectRoot, ts) {
+function createFSBackedSystem(files, _projectRoot, ts, tsLibDirectory) {
   // We need to make an isolated folder for the tsconfig, but also need to be able to resolve the
@@ -379,3 +379,3 @@ // existing node_modules structures going back through the history
   var nodeSys = ts.sys;
-  var tsLib = path.dirname(require.resolve("typescript"));
+  var tsLib = tsLibDirectory != null ? tsLibDirectory : path.dirname(require.resolve("typescript"));
   return {
@@ -382,0 +382,0 @@ // @ts-ignore

package.json

 {
   "name": "@typescript/vfs",
-  "version": "1.3.6",
+  "version": "1.4.0",
   "license": "MIT",
@@ -5,0 +5,0 @@ "author": "TypeScript team",

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