chore(build): add typescript to the cjs build.

Refactor the file extension logic in traceur plugin to simplify

Brocfile-js_cjs.js

@@ -2,12 +2,14 @@ var Funnel = require('broccoli-funnel');
 var mergeTrees = require('broccoli-merge-trees');
 var stew = require('broccoli-stew');
 var TraceurCompiler = require('./tools/broccoli/traceur');
+var TypescriptCompiler = require('./tools/broccoli/typescript');
 var renderLodashTemplate = require('broccoli-lodash');
 
-var modulesTree = new Funnel('modules', {include: ['**/**'], exclude: ['angular2/src/core/zone/vm_turn_zone.es6']});
+var modulesTree = new Funnel(
+    'modules', {include: ['**/**'], exclude: ['angular2/src/core/zone/vm_turn_zone.es6']});
 
-// Use Traceur to transpile original sources to ES6
-var cjsTree = new TraceurCompiler(modulesTree, '.js', {
+// Use Traceur to transpile original sources to ES5
+var traceurOpts = {
   sourceMaps: true,
   annotations: true,      // parse annotations
   types: true,            // parse types
@@ -17,18 +19,13 @@ var cjsTree = new TraceurCompiler(modulesTree, '.js', {
   // Don't use type assertions since this is partly transpiled by typescript
   typeAssertions: false,
   modules: 'commonjs'
-}, true);
-
-// Munge the filenames since we use an '.es6' extension
-cjsTree = stew.rename(cjsTree, function(relativePath) {
-  return relativePath.replace(/\.(js|es6)\.map$/, '.map').replace(/\.es6$/, '.js');
-});
+};
+var cjsTree = new TraceurCompiler(modulesTree, '.js', '.map', traceurOpts);
 
-// Now we add a few more files to the es6 tree that Traceur should not see
+// Add the LICENSE file in each module
 ['angular2', 'benchmarks', 'benchmarks_external', 'benchpress', 'examples', 'rtts_assert'].forEach(
     function(destDir) {
-      var extras = new Funnel('.', {files: ['LICENSE'], destDir: destDir});
-      cjsTree = mergeTrees([cjsTree, extras]);
+      cjsTree = mergeTrees([cjsTree, new Funnel('.', {files: ['LICENSE'], destDir: destDir})]);
     });
 
 extras = new Funnel(modulesTree, {include: ['**/*.md', '**/*.png'], exclude: ['**/*.dart.md']});
@@ -53,12 +50,25 @@ var COMMON_PACKAGE_JSON = {
 };
 
 // Add a .template extension since renderLodashTemplate strips one extension
-var packageJsons = stew.rename(new Funnel(modulesTree, {include: ['**/package.json']}), '.json', '.json.template');
-packageJsons = renderLodashTemplate(packageJsons, {
-  files: ["**/**"],
-  context: { 'packageJson': COMMON_PACKAGE_JSON }
+var packageJsons =
+    stew.rename(new Funnel(modulesTree, {include: ['**/package.json']}), '.json', '.json.template');
+packageJsons = renderLodashTemplate(
+    packageJsons, {files: ["**/**"], context: {'packageJson': COMMON_PACKAGE_JSON}});
+
+var typescriptTree = new TypescriptCompiler(modulesTree, {
+  target: 'ES5',
+  sourceMap: true,
+  mapRoot: '', /* force sourcemaps to use relative path */
+  module: /*system.js*/'commonjs',
+  allowNonTsExtensions: false,
+  typescript: require('typescript'),
+  //declarationFiles: true,
+  noEmitOnError: true,
+  outDir: 'angular2'
 });
 
+// For now, we just overwrite the Traceur-compiled files with their Typescript equivalent
+cjsTree = mergeTrees([cjsTree, typescriptTree], { overwrite: true });
 cjsTree = mergeTrees([cjsTree, extras, packageJsons]);
 
 module.exports = stew.mv(cjsTree, 'js/cjs');

Brocfile-js_dev.js

@@ -10,7 +10,7 @@ var path = require('path');
 var modulesTree = new Funnel('modules', {include: ['**/**'], exclude: ['**/*.cjs'], destDir: '/'});
 
 // Use Traceur to transpile original sources to ES6
-var es6DevTree = new TraceurCompiler(modulesTree, '.es6', {
+var es6DevTree = new TraceurCompiler(modulesTree, '.es6', '.map', {
   sourceMaps: true,
   annotations: true,      // parse annotations
   types: true,            // parse types
@@ -21,14 +21,9 @@ var es6DevTree = new TraceurCompiler(modulesTree, '.es6', {
   typeAssertions: true,
   outputLanguage: 'es6'
 });
-// Munge the filenames since we use an '.es6' extension
-es6DevTree = stew.rename(es6DevTree, function(relativePath) {
-  return relativePath.replace(/\.(js|es6)\.map$/, '.map').replace(/\.js$/, '.es6');
-});
 
 // Call Traceur again to lower the ES6 build tree to ES5
-var es5DevTree = new TraceurCompiler(es6DevTree, '.js', {modules: 'instantiate', sourceMaps: true});
-es5DevTree = stew.rename(es5DevTree, '.es6.map', '.js.map');
+var es5DevTree = new TraceurCompiler(es6DevTree, '.js', '.js.map', {modules: 'instantiate', sourceMaps: true});
 
 // Now we add a few more files to the es6 tree that Traceur should not see
 ['angular2', 'benchmarks', 'benchmarks_external', 'benchpress', 'examples', 'rtts_assert'].forEach(

Brocfile-js_prod.js

@@ -10,7 +10,7 @@ var path = require('path');
 var modulesTree = new Funnel('modules', {include: ['**/**'], destDir: '/'});
 
 // Use Traceur to transpile original sources to ES6
-var es6ProdTree = new TraceurCompiler(modulesTree, '.es6', {
+var es6ProdTree = new TraceurCompiler(modulesTree, '.es6', '.map', {
   sourceMaps: true,
   annotations: true,      // parse annotations
   types: true,            // parse types
@@ -21,14 +21,9 @@ var es6ProdTree = new TraceurCompiler(modulesTree, '.es6', {
   typeAssertions: false,
   outputLanguage: 'es6'
 });
-// Munge the filenames since we use an '.es6' extension
-es6ProdTree = stew.rename(es6ProdTree, function(relativePath) {
-  return relativePath.replace(/\.(js|es6)\.map$/, '.map').replace(/\.js$/, '.es6');
-});
 
 // Call Traceur again to lower the ES6 build tree to ES5
-var es5ProdTree = new TraceurCompiler(es6ProdTree, '.js', {modules: 'instantiate', sourceMaps: true});
-es5ProdTree = stew.rename(es5ProdTree, '.es6.map', '.js.map');
+var es5ProdTree = new TraceurCompiler(es6ProdTree, '.js', '.js.map', {modules: 'instantiate', sourceMaps: true});
 
 // Now we add a few more files to the es6 tree that Traceur should not see
 ['angular2', 'benchmarks', 'benchmarks_external', 'benchpress', 'examples', 'rtts_assert'].forEach(

gulpfile.js

@@ -761,10 +761,6 @@ gulp.task('broccoli.js.cjs', function() {
 gulp.task('build.js.cjs', function(done) {
   runSequence(
     'broccoli.js.cjs',
-    //['build/transpile.js.cjs', 'build/copy.js.cjs', 'build/multicopy.js.cjs'],
-    // Overwrite the .js.cjs transpilation with typescript outputs
-    // We still need traceur outputs everywhere else, for now.
-    'build/transpile.ts.cjs',
     ['build/linknodemodules.js.cjs'],
     'build/transformCJSTests',
     done

tools/broccoli/traceur/index.ts

@@ -7,9 +7,11 @@ var Writer = require('broccoli-writer');
 var xtend = require('xtend');
 
 class TraceurFilter extends Writer {
-  constructor(private inputTree, private destExtension: string = '.js',
-              private options = {}, private hackSourceMapExtension: boolean = false) {}
   static RUNTIME_PATH = traceur.RUNTIME_PATH;
+
+  constructor(private inputTree, private destExtension: string,
+              private destSourceMapExtension: string, private options = {}) {}
+
   write(readTree, destDir) {
     return readTree(this.inputTree)
         .then(srcDir => {
@@ -29,21 +31,15 @@ class TraceurFilter extends Writer {
 
                 // TODO: we should fix the sourceMappingURL written by Traceur instead of overriding
                 // (but we might switch to typescript first)
-                var url = path.basename(filepath).replace(/\.es6$/, '') +
-                  (this.destExtension === '.js' ? '.js.map' : '.map');
-                if (this.hackSourceMapExtension) {
-                  url = path.basename(filepath).replace(/\.\w+$/, '') + '.map';
-                }
-                result.js = result.js + `\n//# sourceMappingURL=./${url}`;
+                var mapFilepath = filepath.replace(/\.\w+$/, '') + this.destSourceMapExtension;
+                result.js = result.js + `\n//# sourceMappingURL=./${path.basename(mapFilepath)}`;
 
                 var destFilepath = filepath.replace(/\.\w+$/, this.destExtension);
                 var destFile = path.join(destDir, destFilepath);
                 fse.mkdirsSync(path.dirname(destFile));
-                var destMap = path.join(destDir, destFilepath + '.map');
-
-
                 fs.writeFileSync(destFile, result.js, fsOpts);
 
+                var destMap = path.join(destDir, mapFilepath);
                 result.sourceMap.file = destFilepath;
                 fs.writeFileSync(destMap, JSON.stringify(result.sourceMap), fsOpts);
               });

tools/broccoli/typescript/index.ts

@@ -0,0 +1,51 @@
+var fs = require('fs');
+var path = require('path');
+var ts = require('typescript');
+var walkSync = require('walk-sync');
+var Writer = require('broccoli-writer');
+var xtend = require('xtend');
+
+class TSCompiler extends Writer {
+  constructor(private inputTree, private options = {}) { super(inputTree, options); }
+
+  write(readTree, destDir) {
+    var options: ts.CompilerOptions = xtend({outDir: destDir}, this.options);
+    if (this.options.outDir) {
+      options.outDir = path.resolve(destDir, options.outDir);
+    }
+    if (options.out) {
+      options.out = path.resolve(destDir, options.out);
+    }
+    options.target = ts.ScriptTarget[options.target];
+    return readTree(this.inputTree)
+      .then(srcDir => {
+        var files = walkSync(srcDir)
+          .filter(filepath => path.extname(filepath).toLowerCase() === '.ts')
+          .map(filepath => path.resolve(srcDir, filepath));
+
+        if (files.length > 0) {
+          var program = ts.createProgram(files, options);
+          var emitResult = program.emit();
+
+          var allDiagnostics = ts.getPreEmitDiagnostics(program).concat(emitResult.diagnostics);
+
+          var errMsg = '';
+          allDiagnostics.forEach(diagnostic => {
+            var message = ts.flattenDiagnosticMessageText(diagnostic.messageText, '\n');
+            if (!diagnostic.file) {
+              errMsg += `\n${message}`;
+              return;
+            }
+            var {line, character} =
+              diagnostic.file.getLineAndCharacterOfPosition(diagnostic.start);
+            errMsg += `\n${diagnostic.file.fileName} (${line + 1},${character + 1}): ${message}`;
+          });
+
+          if (emitResult.emitSkipped) {
+            throw new Error(errMsg);
+          }
+        }
+      });
+  }
+}
+module.exports = TSCompiler;