Update LKG

Author: ivogabe

release/compiler.d.ts

@@ -29,7 +29,7 @@ export declare class ProjectCompiler implements ICompiler {
      * Calculates the difference between the common base directory calculated based on the base paths of the input files
      * and the common source directory calculated by TypeScript.
      */
-    private commonBaseDiff;
+    private readonly commonBaseDiff;
     correctSourceMap(map: RawSourceMap): boolean;
     private removeSourceMapComment(content);
 }

release/compiler.js

@@ -23,6 +23,18 @@ var ProjectCompiler = (function () {
             this.project.output.finish(reporter_1.emptyCompilationResult());
             return;
         }
+        var root = this.project.input.commonBasePath;
+        var rootFilenames = this.project.input.getFileNames(true);
+        if (!this.project.singleOutput) {
+            // Add an empty file under the root.
+            // This will make sure the commonSourceDirectory, calculated by TypeScript, won't point to a subdirectory of the root.
+            // We cannot use the `rootDir` option here, since that gives errors if the commonSourceDirectory points to a
+            // directory containing the rootDir instead of the rootDir, which will break the build when using `noEmitOnError`.
+            // The empty file is filtered out later on.
+            var emptyFileName = path.join(this.project.options['rootDir'] ? path.resolve(this.project.projectDirectory, this.project.options['rootDir']) : root, '________________empty.ts');
+            rootFilenames.push(emptyFileName);
+            this.project.input.addContent(emptyFileName, '');
+        }
         if (!this.project.input.isChanged(true)) {
             // Re-use old output
             var old = this.project.previousOutput;
@@ -42,24 +54,12 @@ var ProjectCompiler = (function () {
             this.project.output.finish(old.results);
             return;
         }
-        var root = this.project.input.commonBasePath;
         this.project.options.sourceRoot = root;
         this.host = new host_1.Host(this.project.typescript, this.project.currentDirectory, this.project.input, !this.project.noExternalResolve, this.project.options.target >= ts.ScriptTarget.ES6 ? 'lib.es6.d.ts' : 'lib.d.ts');
-        var rootFilenames = this.project.input.getFileNames(true);
         if (this.project.filterSettings !== undefined) {
             var filter_2 = new filter_1.Filter(this.project, this.project.filterSettings);
             rootFilenames = rootFilenames.filter(function (fileName) { return filter_2.match(fileName); });
         }
-        if (!this.project.singleOutput) {
-            // Add an empty file under the root.
-            // This will make sure the commonSourceDirectory, calculated by TypeScript, won't point to a subdirectory of the root.
-            // We cannot use the `rootDir` option here, since that gives errors if the commonSourceDirectory points to a
-            // directory containing the rootDir instead of the rootDir, which will break the build when using `noEmitOnError`.
-            // The empty file is filtered out later on.
-            var emptyFileName = path.join(this.project.options['rootDir'] ? path.resolve(this.project.projectDirectory, this.project.options['rootDir']) : root, '________________empty.ts');
-            rootFilenames.push(emptyFileName);
-            this.project.input.addContent(emptyFileName, '');
-        }
         // Creating a program to compile the sources
         // We cast to `tsApi.CreateProgram` so we can pass the old program as an extra argument.
         // TS 1.6+ will try to reuse program structure (if possible)

release/host.d.ts

@@ -23,4 +23,5 @@ export declare class Host implements ts.CompilerHost {
     fileExists(fileName: string): boolean;
     readFile(fileName: string): string;
     getSourceFile: (fileName: string, languageVersion: ts.ScriptTarget, onError?: (message: string) => void) => ts.SourceFile;
+    realpath: any;
 }

release/host.js

@@ -50,6 +50,7 @@ var Host = (function () {
         this.input = input;
         this.externalResolve = externalResolve;
         this.libFileName = libFileName;
+        this.realpath = typescript.createCompilerHost({})['realpath'];
         this.reset();
     }
     Host.getLibDefault = function (typescript, libFileName, originalFileName) {

release/input.d.ts

@@ -43,8 +43,8 @@ export declare class FileDictionary {
     initTypeScriptSourceFile: (file: File) => void;
     getFileNames(onlyGulp?: boolean): string[];
     private getSourceFileNames(onlyGulp?);
-    commonBasePath: string;
-    commonSourceDirectory: string;
+    readonly commonBasePath: string;
+    readonly commonSourceDirectory: string;
 }
 export declare class FileCache {
     previous: FileDictionary;
@@ -62,8 +62,8 @@ export declare class FileCache {
     getFile(name: string): File;
     getFileChange(name: string): FileChange;
     getFileNames(onlyGulp?: boolean): string[];
-    firstSourceFile: File;
-    commonBasePath: string;
-    commonSourceDirectory: string;
+    readonly firstSourceFile: File;
+    readonly commonBasePath: string;
+    readonly commonSourceDirectory: string;
     isChanged(onlyGulp?: boolean): boolean;
 }

release/project.js

@@ -35,8 +35,8 @@ var Project = (function () {
         var _this = this;
         var configPath = path.dirname(this.configFileName);
         var base;
-        if (this.config.compilerOptions && this.config.compilerOptions.rootDir) {
-            base = path.resolve(configPath, this.config.compilerOptions.rootDir);
+        if (this.options["rootDir"]) {
+            base = path.resolve(configPath, this.options["rootDir"]);
         }
         if (!this.config.files) {
             var files_1 = [path.join(configPath, '**/*.ts')];