refactor(ivy): ngcc - `Renderer` now manages d.ts transformation (#26082)

PR Close #26082

packages/compiler-cli/src/ngcc/src/rendering/esm2015_renderer.ts

@@ -5,90 +5,59 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
+import {relative, resolve} from 'canonical-path';
+import {readFileSync} from 'fs';
 import * as ts from 'typescript';
-import MagicString from 'magic-string';
-import {POST_NGCC_MARKER, PRE_NGCC_MARKER} from '../host/ngcc_host';
-import {AnalyzedClass} from '../analysis/decoration_analyzer';
-import {Renderer} from './renderer';
 
-export class Esm2015Renderer extends Renderer {
+import {DtsFileTransformer} from '../../../ngtsc/transform';
-  /**
+import {DecorationAnalysis} from '../analysis/decoration_analyzer';
-   *  Add the imports at the top of the file
+import {SwitchMarkerAnalysis} from '../analysis/switch_marker_analyzer';
-   */
+import {IMPORT_PREFIX} from '../constants';
-  addImports(output: MagicString, imports: {name: string; as: string;}[]): void {
+import {DtsMapper} from '../host/dts_mapper';
-    // The imports get inserted at the very top of the file.
+import {NgccReflectionHost} from '../host/ngcc_host';
-    imports.forEach(i => { output.appendLeft(0, `import * as ${i.as} from '${i.name}';\n`); });
+
+import {Fesm2015Renderer} from './fesm2015_renderer';
+import {FileInfo} from './renderer';
+
+export class Esm2015Renderer extends Fesm2015Renderer {
+  constructor(
+      protected host: NgccReflectionHost, protected isCore: boolean,
+      protected rewriteCoreImportsTo: ts.SourceFile|null, protected sourcePath: string,
+      protected targetPath: string, protected dtsMapper: DtsMapper) {
+    super(host, isCore, rewriteCoreImportsTo, sourcePath, targetPath);
   }
 
-  addConstants(output: MagicString, constants: string, file: ts.SourceFile): void {
+  renderFile(
-    if (constants === '') {
+      sourceFile: ts.SourceFile, decorationAnalysis: DecorationAnalysis|undefined,
-      return;
+      switchMarkerAnalysis: SwitchMarkerAnalysis|undefined, targetPath: string): FileInfo[] {
-    }
+    const renderedFiles =
-    const insertionPoint = file.statements.reduce((prev, stmt) => {
+        super.renderFile(sourceFile, decorationAnalysis, switchMarkerAnalysis, targetPath);
-      if (ts.isImportDeclaration(stmt) || ts.isImportEqualsDeclaration(stmt) ||
+
-          ts.isNamespaceImport(stmt)) {
+    // Transform the `.d.ts` files.
-        return stmt.getEnd();
+    // TODO(gkalpak): What about `.d.ts` source maps? (See
-      }
+    // https://www.typescriptlang.org/docs/handbook/release-notes/typescript-2-9.html#new---declarationmap.)
-      return prev;
+    if (decorationAnalysis) {
-    }, 0);
+      // Create a `DtsFileTransformer` for the source file and record the generated fields, which
-    output.appendLeft(insertionPoint, '\n' + constants + '\n');
+      // will allow the corresponding `.d.ts` file to be transformed later.
+      const dtsTransformer = new DtsFileTransformer(this.rewriteCoreImportsTo, IMPORT_PREFIX);
+      decorationAnalysis.analyzedClasses.forEach(
+          analyzedClass =>
+              dtsTransformer.recordStaticField(analyzedClass.name, analyzedClass.compilation));
+
+      // Find the corresponding `.d.ts` file.
+      const sourceFileName = sourceFile.fileName;
+      const originalDtsFileName = this.dtsMapper.getDtsFileNameFor(sourceFileName);
+      const originalDtsContents = readFileSync(originalDtsFileName, 'utf8');
+
+      // Transform the `.d.ts` file based on the recorded source file changes.
+      const transformedDtsFileName =
+          resolve(this.targetPath, relative(this.sourcePath, originalDtsFileName));
+      const transformedDtsContents = dtsTransformer.transform(originalDtsContents, sourceFileName);
+
+      // Add the transformed `.d.ts` file to the list of output files.
+      renderedFiles.push({path: transformedDtsFileName, contents: transformedDtsContents});
     }
 
-  /**
+    return renderedFiles;
-   * Add the definitions to each decorated class
-   */
-  addDefinitions(output: MagicString, analyzedClass: AnalyzedClass, definitions: string): void {
-    const classSymbol = this.host.getClassSymbol(analyzedClass.declaration);
-    if (!classSymbol) {
-      throw new Error(`Analyzed class does not have a valid symbol: ${analyzedClass.name}`);
-    }
-    const insertionPoint = classSymbol.valueDeclaration !.getEnd();
-    output.appendLeft(insertionPoint, '\n' + definitions);
-  }
-
-  /**
-   * Remove static decorator properties from classes
-   */
-  removeDecorators(output: MagicString, decoratorsToRemove: Map<ts.Node, ts.Node[]>): void {
-    decoratorsToRemove.forEach((nodesToRemove, containerNode) => {
-      if (ts.isArrayLiteralExpression(containerNode)) {
-        const items = containerNode.elements;
-        if (items.length === nodesToRemove.length) {
-          // Remove the entire statement
-          const statement = findStatement(containerNode);
-          if (statement) {
-            output.remove(statement.getFullStart(), statement.getEnd());
-          }
-        } else {
-          nodesToRemove.forEach(node => {
-            // remove any trailing comma
-            const end = (output.slice(node.getEnd(), node.getEnd() + 1) === ',') ?
-                node.getEnd() + 1 :
-                node.getEnd();
-            output.remove(node.getFullStart(), end);
-          });
   }
 }
-    });
-  }
-
-  rewriteSwitchableDeclarations(outputText: MagicString, sourceFile: ts.SourceFile): void {
-    const declarations = this.host.getSwitchableDeclarations(sourceFile);
-    declarations.forEach(declaration => {
-      const start = declaration.initializer.getStart();
-      const end = declaration.initializer.getEnd();
-      const replacement = declaration.initializer.text.replace(PRE_NGCC_MARKER, POST_NGCC_MARKER);
-      outputText.overwrite(start, end, replacement);
-    });
-  }
-}
-
-function findStatement(node: ts.Node) {
-  while (node) {
-    if (ts.isExpressionStatement(node)) {
-      return node;
-    }
-    node = node.parent;
-  }
-  return undefined;
-}

packages/compiler-cli/src/ngcc/src/rendering/esm5_renderer.ts

@@ -5,6 +5,6 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
-import {Esm2015Renderer} from './esm2015_renderer';
+import {Fesm2015Renderer} from './fesm2015_renderer';
 
-export class Esm5Renderer extends Esm2015Renderer {}
+export class Esm5Renderer extends Fesm2015Renderer {}

packages/compiler-cli/src/ngcc/src/rendering/fesm2015_renderer.ts

@@ -0,0 +1,102 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+import * as ts from 'typescript';
+import MagicString from 'magic-string';
+import {NgccReflectionHost, POST_NGCC_MARKER, PRE_NGCC_MARKER, SwitchableVariableDeclaration} from '../host/ngcc_host';
+import {AnalyzedClass} from '../analysis/decoration_analyzer';
+import {Renderer} from './renderer';
+
+export class Fesm2015Renderer extends Renderer {
+  constructor(
+      protected host: NgccReflectionHost, protected isCore: boolean,
+      protected rewriteCoreImportsTo: ts.SourceFile|null, protected sourcePath: string,
+      protected targetPath: string) {
+    super(host, isCore, rewriteCoreImportsTo, sourcePath, targetPath);
+  }
+
+  /**
+   *  Add the imports at the top of the file
+   */
+  addImports(output: MagicString, imports: {name: string; as: string;}[]): void {
+    // The imports get inserted at the very top of the file.
+    imports.forEach(i => { output.appendLeft(0, `import * as ${i.as} from '${i.name}';\n`); });
+  }
+
+  addConstants(output: MagicString, constants: string, file: ts.SourceFile): void {
+    if (constants === '') {
+      return;
+    }
+    const insertionPoint = file.statements.reduce((prev, stmt) => {
+      if (ts.isImportDeclaration(stmt) || ts.isImportEqualsDeclaration(stmt) ||
+          ts.isNamespaceImport(stmt)) {
+        return stmt.getEnd();
+      }
+      return prev;
+    }, 0);
+    output.appendLeft(insertionPoint, '\n' + constants + '\n');
+  }
+
+  /**
+   * Add the definitions to each decorated class
+   */
+  addDefinitions(output: MagicString, analyzedClass: AnalyzedClass, definitions: string): void {
+    const classSymbol = this.host.getClassSymbol(analyzedClass.declaration);
+    if (!classSymbol) {
+      throw new Error(`Analyzed class does not have a valid symbol: ${analyzedClass.name}`);
+    }
+    const insertionPoint = classSymbol.valueDeclaration !.getEnd();
+    output.appendLeft(insertionPoint, '\n' + definitions);
+  }
+
+  /**
+   * Remove static decorator properties from classes
+   */
+  removeDecorators(output: MagicString, decoratorsToRemove: Map<ts.Node, ts.Node[]>): void {
+    decoratorsToRemove.forEach((nodesToRemove, containerNode) => {
+      if (ts.isArrayLiteralExpression(containerNode)) {
+        const items = containerNode.elements;
+        if (items.length === nodesToRemove.length) {
+          // Remove the entire statement
+          const statement = findStatement(containerNode);
+          if (statement) {
+            output.remove(statement.getFullStart(), statement.getEnd());
+          }
+        } else {
+          nodesToRemove.forEach(node => {
+            // remove any trailing comma
+            const end = (output.slice(node.getEnd(), node.getEnd() + 1) === ',') ?
+                node.getEnd() + 1 :
+                node.getEnd();
+            output.remove(node.getFullStart(), end);
+          });
+        }
+      }
+    });
+  }
+
+  rewriteSwitchableDeclarations(
+      outputText: MagicString, sourceFile: ts.SourceFile,
+      declarations: SwitchableVariableDeclaration[]): void {
+    declarations.forEach(declaration => {
+      const start = declaration.initializer.getStart();
+      const end = declaration.initializer.getEnd();
+      const replacement = declaration.initializer.text.replace(PRE_NGCC_MARKER, POST_NGCC_MARKER);
+      outputText.overwrite(start, end, replacement);
+    });
+  }
+}
+
+function findStatement(node: ts.Node) {
+  while (node) {
+    if (ts.isExpressionStatement(node)) {
+      return node;
+    }
+    node = node.parent;
+  }
+  return undefined;
+}

packages/compiler-cli/src/ngcc/src/rendering/renderer.ts

@@ -9,16 +9,17 @@ import {ConstantPool, Expression, Statement, WrappedNodeExpr, WritePropExpr} fro
 import {SourceMapConverter, commentRegex, fromJSON, fromMapFileSource, fromObject, fromSource, generateMapFileComment, mapFileCommentRegex, removeComments, removeMapFileComments} from 'convert-source-map';
 import {readFileSync, statSync} from 'fs';
 import MagicString from 'magic-string';
-import {basename, dirname} from 'canonical-path';
+import {basename, dirname, relative, resolve} from 'canonical-path';
 import {SourceMapConsumer, SourceMapGenerator, RawSourceMap} from 'source-map';
 import * as ts from 'typescript';
 
 import {Decorator} from '../../../ngtsc/host';
 import {translateStatement} from '../../../ngtsc/translator';
-import {AnalyzedClass, DecorationAnalysis} from '../analysis/decoration_analyzer';
-import {IMPORT_PREFIX} from '../constants';
-import {NgccReflectionHost} from '../host/ngcc_host';
 import {NgccImportManager} from './ngcc_import_manager';
+import {AnalyzedClass, DecorationAnalysis, DecorationAnalyses} from '../analysis/decoration_analyzer';
+import {SwitchMarkerAnalyses, SwitchMarkerAnalysis} from '../analysis/switch_marker_analyzer';
+import {IMPORT_PREFIX} from '../constants';
+import {NgccReflectionHost, SwitchableVariableDeclaration} from '../host/ngcc_host';
 
 interface SourceMapInfo {
   source: string;
@@ -30,10 +31,6 @@ interface SourceMapInfo {
  * The results of rendering an analyzed file.
  */
 export interface RenderResult {
-  /**
-   * The file that has been rendered.
-   */
-  file: DecorationAnalysis;
   /**
    * The rendered source file.
    */
@@ -67,42 +64,77 @@ export interface FileInfo {
 export abstract class Renderer {
   constructor(
       protected host: NgccReflectionHost, protected isCore: boolean,
-      protected rewriteCoreImportsTo: ts.SourceFile|null) {}
+      protected rewriteCoreImportsTo: ts.SourceFile|null, protected sourcePath: string,
+      protected targetPath: string) {}
+
+  renderProgram(
+      program: ts.Program, decorationAnalyses: DecorationAnalyses,
+      switchMarkerAnalyses: SwitchMarkerAnalyses): FileInfo[] {
+    const renderedFiles: FileInfo[] = [];
+    // Transform the source files and source maps.
+    program.getSourceFiles().map(sourceFile => {
+      const decorationAnalysis = decorationAnalyses.get(sourceFile);
+      const switchMarkerAnalysis = switchMarkerAnalyses.get(sourceFile);
+
+      // Transform the source files and source maps.
+      if (decorationAnalysis || switchMarkerAnalysis) {
+        const targetPath = resolve(this.targetPath, relative(this.sourcePath, sourceFile.fileName));
+        renderedFiles.push(
+            ...this.renderFile(sourceFile, decorationAnalysis, switchMarkerAnalysis, targetPath));
+      }
+    });
+    return renderedFiles;
+  }
 
   /**
    * Render the source code and source-map for an Analyzed file.
-   * @param file The analyzed file to render.
+   * @param decorationAnalysis The analyzed file to render.
    * @param targetPath The absolute path where the rendered file will be written.
    */
-  renderFile(file: DecorationAnalysis, targetPath: string): RenderResult {
+  renderFile(
+      sourceFile: ts.SourceFile, decorationAnalysis: DecorationAnalysis|undefined,
+      switchMarkerAnalysis: SwitchMarkerAnalysis|undefined, targetPath: string): FileInfo[] {
+    const input = this.extractSourceMap(sourceFile);
+    const outputText = new MagicString(input.source);
+
+    if (switchMarkerAnalysis) {
+      this.rewriteSwitchableDeclarations(
+          outputText, switchMarkerAnalysis.sourceFile, switchMarkerAnalysis.declarations);
+    }
+
+    if (decorationAnalysis) {
       const importManager =
           new NgccImportManager(!this.rewriteCoreImportsTo, this.isCore, IMPORT_PREFIX);
-    const input = this.extractSourceMap(file.sourceFile);
-
-    const outputText = new MagicString(input.source);
       const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
 
-    file.analyzedClasses.forEach(clazz => {
+      decorationAnalysis.analyzedClasses.forEach(clazz => {
-      const renderedDefinition = renderDefinitions(file.sourceFile, clazz, importManager);
+        const renderedDefinition =
+            renderDefinitions(decorationAnalysis.sourceFile, clazz, importManager);
         this.addDefinitions(outputText, clazz, renderedDefinition);
         this.trackDecorators(clazz.decorators, decoratorsToRemove);
       });
 
       this.addConstants(
-        outputText, renderConstantPool(file.sourceFile, file.constantPool, importManager),
+          outputText,
-        file.sourceFile);
+          renderConstantPool(
+              decorationAnalysis.sourceFile, decorationAnalysis.constantPool, importManager),
+          decorationAnalysis.sourceFile);
 
       this.addImports(
-        outputText,
+          outputText, importManager.getAllImports(
-        importManager.getAllImports(file.sourceFile.fileName, this.rewriteCoreImportsTo));
+                          decorationAnalysis.sourceFile.fileName, this.rewriteCoreImportsTo));
 
       // TODO: remove contructor param metadata and property decorators (we need info from the
       // handlers to do this)
       this.removeDecorators(outputText, decoratorsToRemove);
+    }
 
-    this.rewriteSwitchableDeclarations(outputText, file.sourceFile);
+    const {source, map} = this.renderSourceAndMap(sourceFile, input, outputText, targetPath);
-
+    const renderedFiles = [source];
-    return this.renderSourceAndMap(file, input, outputText, targetPath);
+    if (map) {
+      renderedFiles.push(map);
+    }
+    return renderedFiles;
   }
 
   protected abstract addConstants(output: MagicString, constants: string, file: ts.SourceFile):
@@ -113,7 +145,8 @@ export abstract class Renderer {
   protected abstract removeDecorators(
       output: MagicString, decoratorsToRemove: Map<ts.Node, ts.Node[]>): void;
   protected abstract rewriteSwitchableDeclarations(
-      outputText: MagicString, sourceFile: ts.SourceFile): void;
+      outputText: MagicString, sourceFile: ts.SourceFile,
+      declarations: SwitchableVariableDeclaration[]): void;
 
   /**
    * Add the decorator nodes that are to be removed to a map
@@ -180,11 +213,11 @@ export abstract class Renderer {
    * with an appropriate source-map comment pointing to the merged source-map.
    */
   protected renderSourceAndMap(
-      file: DecorationAnalysis, input: SourceMapInfo, output: MagicString,
+      sourceFile: ts.SourceFile, input: SourceMapInfo, output: MagicString,
       outputPath: string): RenderResult {
     const outputMapPath = `${outputPath}.map`;
     const outputMap = output.generateMap({
-      source: file.sourceFile.fileName,
+      source: sourceFile.fileName,
       includeContent: true,
       // hires: true // TODO: This results in accurate but huge sourcemaps. Instead we should fix
       // the merge algorithm.
@@ -198,13 +231,11 @@ export abstract class Renderer {
 
     if (input.isInline) {
       return {
-        file,
         source: {path: outputPath, contents: `${output.toString()}\n${mergedMap.toComment()}`},
         map: null
       };
     } else {
       return {
-        file,
         source: {
           path: outputPath,
           contents: `${output.toString()}\n${generateMapFileComment(outputMapPath)}`

packages/compiler-cli/src/ngcc/test/analysis/switch_marker_analyzer_spec.ts

@@ -47,7 +47,7 @@ describe('SwitchMarkerAnalyzer', () => {
   describe('analyzeProgram()', () => {
     it('should check for switchable markers in all the files of the program', () => {
       const program = makeProgram(...TEST_PROGRAM);
-      const host = new Fesm2015ReflectionHost(program.getTypeChecker());
+      const host = new Fesm2015ReflectionHost(false, program.getTypeChecker());
       const analyzer = new SwitchMarkerAnalyzer(host);
       const analysis = analyzer.analyzeProgram(program);
 

packages/compiler-cli/src/ngcc/test/rendering/esm2015_renderer_spec.ts

@@ -5,24 +5,28 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
+import {dirname} from 'canonical-path';
 import * as ts from 'typescript';
+
 import MagicString from 'magic-string';
 import {makeProgram} from '../helpers/utils';
 import {DecorationAnalyzer} from '../../src/analysis/decoration_analyzer';
+import {SwitchMarkerAnalyzer} from '../../src/analysis/switch_marker_analyzer';
+import {DtsMapper} from '../../src/host/dts_mapper';
 import {Fesm2015ReflectionHost} from '../../src/host/fesm2015_host';
 import {Esm2015Renderer} from '../../src/rendering/esm2015_renderer';
 
-function setup(file: {name: string, contents: string}) {
+function setup(file: {name: string, contents: string}, transformDts: boolean = false) {
+  const dir = dirname(file.name);
+  const dtsMapper = new DtsMapper(dir, dir);
   const program = makeProgram(file);
+  const sourceFile = program.getSourceFile(file.name) !;
   const host = new Fesm2015ReflectionHost(false, program.getTypeChecker());
-  const analyzer = new DecorationAnalyzer(program.getTypeChecker(), host, [''], false);
+  const decorationAnalyses =
-  const renderer = new Esm2015Renderer(host, false, null);
+      new DecorationAnalyzer(program.getTypeChecker(), host, [''], false).analyzeProgram(program);
-  return {analyzer, host, program, renderer};
+  const switchMarkerAnalyses = new SwitchMarkerAnalyzer(host).analyzeProgram(program);
-}
+  const renderer = new Esm2015Renderer(host, false, null, dir, dir, dtsMapper);
-
+  return {host, program, sourceFile, renderer, decorationAnalyses, switchMarkerAnalyses};
-function analyze(host: Fesm2015ReflectionHost, analyzer: DecorationAnalyzer, file: ts.SourceFile) {
-  const decoratedFiles = host.findDecoratedFiles(file);
-  return Array.from(decoratedFiles.values()).map(file => analyzer.analyzeFile(file))[0];
 }
 
 const PROGRAM = {
@@ -133,13 +137,14 @@ export class A {}`);
 
   describe('rewriteSwitchableDeclarations', () => {
     it('should switch marked declaration initializers', () => {
-      const {renderer, program} = setup(PROGRAM);
+      const {renderer, program, switchMarkerAnalyses, sourceFile} = setup(PROGRAM);
       const file = program.getSourceFile('some/file.js');
       if (file === undefined) {
         throw new Error(`Could not find source file`);
       }
       const output = new MagicString(PROGRAM.contents);
-      renderer.rewriteSwitchableDeclarations(output, file);
+      renderer.rewriteSwitchableDeclarations(
+          output, file, switchMarkerAnalyses.get(sourceFile) !.declarations);
       expect(output.toString())
           .not.toContain(`let compileNgModuleFactory = compileNgModuleFactory__PRE_NGCC__;`);
       expect(output.toString())
@@ -157,10 +162,10 @@ export class A {}`);
 
   describe('addDefinitions', () => {
     it('should insert the definitions directly after the class declaration', () => {
-      const {analyzer, host, program, renderer} = setup(PROGRAM);
+      const {renderer, decorationAnalyses, sourceFile} = setup(PROGRAM);
-      const analyzedFile = analyze(host, analyzer, program.getSourceFile(PROGRAM.name) !);
       const output = new MagicString(PROGRAM.contents);
-      renderer.addDefinitions(output, analyzedFile.analyzedClasses[0], 'SOME DEFINITION TEXT');
+      const analyzedClass = decorationAnalyses.get(sourceFile) !.analyzedClasses[0];
+      renderer.addDefinitions(output, analyzedClass, 'SOME DEFINITION TEXT');
       expect(output.toString()).toContain(`
 export class A {}
 SOME DEFINITION TEXT
@@ -175,10 +180,10 @@ A.decorators = [
     describe('[static property declaration]', () => {
       it('should delete the decorator (and following comma) that was matched in the analysis',
          () => {
-           const {analyzer, host, program, renderer} = setup(PROGRAM);
+           const {decorationAnalyses, sourceFile, renderer} = setup(PROGRAM);
-           const analyzedFile = analyze(host, analyzer, program.getSourceFile(PROGRAM.name) !);
            const output = new MagicString(PROGRAM.contents);
-           const analyzedClass = analyzedFile.analyzedClasses[0];
+           const analyzedClass =
+               decorationAnalyses.get(sourceFile) !.analyzedClasses.find(c => c.name === 'A') !;
            const decorator = analyzedClass.decorators[0];
            const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
            decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
@@ -194,10 +199,10 @@ A.decorators = [
 
       it('should delete the decorator (but cope with no trailing comma) that was matched in the analysis',
          () => {
-           const {analyzer, host, program, renderer} = setup(PROGRAM);
+           const {decorationAnalyses, sourceFile, renderer} = setup(PROGRAM);
-           const analyzedFile = analyze(host, analyzer, program.getSourceFile(PROGRAM.name) !);
            const output = new MagicString(PROGRAM.contents);
-           const analyzedClass = analyzedFile.analyzedClasses[1];
+           const analyzedClass =
+               decorationAnalyses.get(sourceFile) !.analyzedClasses.find(c => c.name === 'B') !;
            const decorator = analyzedClass.decorators[0];
            const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
            decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
@@ -213,10 +218,10 @@ A.decorators = [
 
       it('should delete the decorator (and its container if there are no other decorators left) that was matched in the analysis',
          () => {
-           const {analyzer, host, program, renderer} = setup(PROGRAM);
+           const {decorationAnalyses, sourceFile, renderer} = setup(PROGRAM);
-           const analyzedFile = analyze(host, analyzer, program.getSourceFile(PROGRAM.name) !);
            const output = new MagicString(PROGRAM.contents);
-           const analyzedClass = analyzedFile.analyzedClasses[2];
+           const analyzedClass =
+               decorationAnalyses.get(sourceFile) !.analyzedClasses.find(c => c.name === 'C') !;
            const decorator = analyzedClass.decorators[0];
            const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
            decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
@@ -234,11 +239,10 @@ A.decorators = [
 
   describe('[__decorate declarations]', () => {
     it('should delete the decorator (and following comma) that was matched in the analysis', () => {
-      const {analyzer, host, program, renderer} = setup(PROGRAM_DECORATE_HELPER);
+      const {renderer, decorationAnalyses, sourceFile} = setup(PROGRAM_DECORATE_HELPER);
-      const analyzedFile =
-          analyze(host, analyzer, program.getSourceFile(PROGRAM_DECORATE_HELPER.name) !);
       const output = new MagicString(PROGRAM_DECORATE_HELPER.contents);
-      const analyzedClass = analyzedFile.analyzedClasses.find(c => c.name === 'A') !;
+      const analyzedClass =
+          decorationAnalyses.get(sourceFile) !.analyzedClasses.find(c => c.name === 'A') !;
       const decorator = analyzedClass.decorators.find(d => d.name === 'Directive') !;
       const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
       decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
@@ -252,11 +256,10 @@ A.decorators = [
 
     it('should delete the decorator (but cope with no trailing comma) that was matched in the analysis',
        () => {
-         const {analyzer, host, program, renderer} = setup(PROGRAM_DECORATE_HELPER);
+         const {renderer, decorationAnalyses, sourceFile} = setup(PROGRAM_DECORATE_HELPER);
-         const analyzedFile =
-             analyze(host, analyzer, program.getSourceFile(PROGRAM_DECORATE_HELPER.name) !);
          const output = new MagicString(PROGRAM_DECORATE_HELPER.contents);
-         const analyzedClass = analyzedFile.analyzedClasses.find(c => c.name === 'B') !;
+         const analyzedClass =
+             decorationAnalyses.get(sourceFile) !.analyzedClasses.find(c => c.name === 'B') !;
          const decorator = analyzedClass.decorators.find(d => d.name === 'Directive') !;
          const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
          decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
@@ -271,11 +274,10 @@ A.decorators = [
 
     it('should delete the decorator (and its container if there are not other decorators left) that was matched in the analysis',
        () => {
-         const {analyzer, host, program, renderer} = setup(PROGRAM_DECORATE_HELPER);
+         const {renderer, decorationAnalyses, sourceFile} = setup(PROGRAM_DECORATE_HELPER);
-         const analyzedFile =
-             analyze(host, analyzer, program.getSourceFile(PROGRAM_DECORATE_HELPER.name) !);
          const output = new MagicString(PROGRAM_DECORATE_HELPER.contents);
-         const analyzedClass = analyzedFile.analyzedClasses.find(c => c.name === 'C') !;
+         const analyzedClass =
+             decorationAnalyses.get(sourceFile) !.analyzedClasses.find(c => c.name === 'C') !;
          const decorator = analyzedClass.decorators.find(d => d.name === 'Directive') !;
          const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
          decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);

packages/compiler-cli/src/ngcc/test/rendering/esm5_renderer_spec.ts

@@ -9,20 +9,19 @@ import * as ts from 'typescript';
 import MagicString from 'magic-string';
 import {makeProgram} from '../helpers/utils';
 import {DecorationAnalyzer} from '../../src/analysis/decoration_analyzer';
+import {SwitchMarkerAnalyzer} from '../../src/analysis/switch_marker_analyzer';
 import {Esm5ReflectionHost} from '../../src/host/esm5_host';
 import {Esm5Renderer} from '../../src/rendering/esm5_renderer';
 
 function setup(file: {name: string, contents: string}) {
   const program = makeProgram(file);
+  const sourceFile = program.getSourceFile(file.name) !;
   const host = new Esm5ReflectionHost(false, program.getTypeChecker());
-  const analyzer = new DecorationAnalyzer(program.getTypeChecker(), host, [''], false);
+  const decorationAnalyses =
-  const renderer = new Esm5Renderer(host, false, null);
+      new DecorationAnalyzer(program.getTypeChecker(), host, [''], false).analyzeProgram(program);
-  return {analyzer, host, program, renderer};
+  const switchMarkerAnalyses = new SwitchMarkerAnalyzer(host).analyzeProgram(program);
-}
+  const renderer = new Esm5Renderer(host, false, null, '', '');
-
+  return {host, program, sourceFile, renderer, decorationAnalyses, switchMarkerAnalyses};
-function analyze(host: Esm5ReflectionHost, analyzer: DecorationAnalyzer, file: ts.SourceFile) {
-  const decoratedFiles = host.findDecoratedFiles(file);
-  return Array.from(decoratedFiles.values()).map(file => analyzer.analyzeFile(file))[0];
 }
 
 const PROGRAM = {
@@ -158,13 +157,14 @@ var A = (function() {`);
 
   describe('rewriteSwitchableDeclarations', () => {
     it('should switch marked declaration initializers', () => {
-      const {renderer, program} = setup(PROGRAM);
+      const {renderer, program, sourceFile, switchMarkerAnalyses} = setup(PROGRAM);
       const file = program.getSourceFile('some/file.js');
       if (file === undefined) {
         throw new Error(`Could not find source file`);
       }
       const output = new MagicString(PROGRAM.contents);
-      renderer.rewriteSwitchableDeclarations(output, file);
+      renderer.rewriteSwitchableDeclarations(
+          output, file, switchMarkerAnalyses.get(sourceFile) !.declarations);
       expect(output.toString())
           .not.toContain(`var compileNgModuleFactory = compileNgModuleFactory__PRE_NGCC__;`);
       expect(output.toString())
@@ -182,10 +182,10 @@ var A = (function() {`);
 
   describe('addDefinitions', () => {
     it('should insert the definitions directly after the class declaration', () => {
-      const {analyzer, host, program, renderer} = setup(PROGRAM);
+      const {renderer, decorationAnalyses, sourceFile} = setup(PROGRAM);
-      const analyzedFile = analyze(host, analyzer, program.getSourceFile(PROGRAM.name) !);
       const output = new MagicString(PROGRAM.contents);
-      renderer.addDefinitions(output, analyzedFile.analyzedClasses[0], 'SOME DEFINITION TEXT');
+      const analyzedClass = decorationAnalyses.get(sourceFile) !.analyzedClasses[0];
+      renderer.addDefinitions(output, analyzedClass, 'SOME DEFINITION TEXT');
       expect(output.toString()).toContain(`
   function A() {}
 SOME DEFINITION TEXT
@@ -199,10 +199,10 @@ SOME DEFINITION TEXT
   describe('removeDecorators', () => {
 
     it('should delete the decorator (and following comma) that was matched in the analysis', () => {
-      const {analyzer, host, program, renderer} = setup(PROGRAM);
+      const {renderer, decorationAnalyses, sourceFile} = setup(PROGRAM);
-      const analyzedFile = analyze(host, analyzer, program.getSourceFile(PROGRAM.name) !);
       const output = new MagicString(PROGRAM.contents);
-      const analyzedClass = analyzedFile.analyzedClasses[0];
+      const analyzedClass =
+          decorationAnalyses.get(sourceFile) !.analyzedClasses.find(c => c.name === 'A') !;
       const decorator = analyzedClass.decorators[0];
       const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
       decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
@@ -217,10 +217,10 @@ SOME DEFINITION TEXT
 
     it('should delete the decorator (but cope with no trailing comma) that was matched in the analysis',
        () => {
-         const {analyzer, host, program, renderer} = setup(PROGRAM);
+         const {renderer, decorationAnalyses, sourceFile} = setup(PROGRAM);
-         const analyzedFile = analyze(host, analyzer, program.getSourceFile(PROGRAM.name) !);
          const output = new MagicString(PROGRAM.contents);
-         const analyzedClass = analyzedFile.analyzedClasses[1];
+         const analyzedClass =
+             decorationAnalyses.get(sourceFile) !.analyzedClasses.find(c => c.name === 'B') !;
          const decorator = analyzedClass.decorators[0];
          const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
          decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
@@ -236,10 +236,10 @@ SOME DEFINITION TEXT
 
     it('should delete the decorator (and its container if there are not other decorators left) that was matched in the analysis',
        () => {
-         const {analyzer, host, program, renderer} = setup(PROGRAM);
+         const {renderer, decorationAnalyses, sourceFile} = setup(PROGRAM);
-         const analyzedFile = analyze(host, analyzer, program.getSourceFile(PROGRAM.name) !);
          const output = new MagicString(PROGRAM.contents);
-         const analyzedClass = analyzedFile.analyzedClasses[2];
+         const analyzedClass =
+             decorationAnalyses.get(sourceFile) !.analyzedClasses.find(c => c.name === 'C') !;
          const decorator = analyzedClass.decorators[0];
          const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
          decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
@@ -257,11 +257,10 @@ SOME DEFINITION TEXT
 
   describe('[__decorate declarations]', () => {
     it('should delete the decorator (and following comma) that was matched in the analysis', () => {
-      const {analyzer, host, program, renderer} = setup(PROGRAM_DECORATE_HELPER);
+      const {renderer, decorationAnalyses, sourceFile} = setup(PROGRAM_DECORATE_HELPER);
-      const analyzedFile =
-          analyze(host, analyzer, program.getSourceFile(PROGRAM_DECORATE_HELPER.name) !);
       const output = new MagicString(PROGRAM_DECORATE_HELPER.contents);
-      const analyzedClass = analyzedFile.analyzedClasses.find(c => c.name === 'A') !;
+      const analyzedClass =
+          decorationAnalyses.get(sourceFile) !.analyzedClasses.find(c => c.name === 'A') !;
       const decorator = analyzedClass.decorators.find(d => d.name === 'Directive') !;
       const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
       decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
@@ -275,11 +274,10 @@ SOME DEFINITION TEXT
 
     it('should delete the decorator (but cope with no trailing comma) that was matched in the analysis',
        () => {
-         const {analyzer, host, program, renderer} = setup(PROGRAM_DECORATE_HELPER);
+         const {renderer, decorationAnalyses, sourceFile} = setup(PROGRAM_DECORATE_HELPER);
-         const analyzedFile =
-             analyze(host, analyzer, program.getSourceFile(PROGRAM_DECORATE_HELPER.name) !);
          const output = new MagicString(PROGRAM_DECORATE_HELPER.contents);
-         const analyzedClass = analyzedFile.analyzedClasses.find(c => c.name === 'B') !;
+         const analyzedClass =
+             decorationAnalyses.get(sourceFile) !.analyzedClasses.find(c => c.name === 'B') !;
          const decorator = analyzedClass.decorators.find(d => d.name === 'Directive') !;
          const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
          decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
@@ -294,11 +292,10 @@ SOME DEFINITION TEXT
 
     it('should delete the decorator (and its container if there are no other decorators left) that was matched in the analysis',
        () => {
-         const {analyzer, host, program, renderer} = setup(PROGRAM_DECORATE_HELPER);
+         const {renderer, decorationAnalyses, sourceFile} = setup(PROGRAM_DECORATE_HELPER);
-         const analyzedFile =
-             analyze(host, analyzer, program.getSourceFile(PROGRAM_DECORATE_HELPER.name) !);
          const output = new MagicString(PROGRAM_DECORATE_HELPER.contents);
-         const analyzedClass = analyzedFile.analyzedClasses.find(c => c.name === 'C') !;
+         const analyzedClass =
+             decorationAnalyses.get(sourceFile) !.analyzedClasses.find(c => c.name === 'C') !;
          const decorator = analyzedClass.decorators.find(d => d.name === 'Directive') !;
          const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
          decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);

packages/compiler-cli/src/ngcc/test/rendering/renderer_spec.ts

@@ -11,11 +11,13 @@ import * as ts from 'typescript';
 import MagicString from 'magic-string';
 import {fromObject, generateMapFileComment} from 'convert-source-map';
 import {makeProgram} from '../helpers/utils';
-import {AnalyzedClass, DecorationAnalyzer} from '../../src/analysis/decoration_analyzer';
+import {AnalyzedClass, DecorationAnalyzer, DecorationAnalyses} from '../../src/analysis/decoration_analyzer';
+import {SwitchMarkerAnalyzer} from '../../src/analysis/switch_marker_analyzer';
 import {Fesm2015ReflectionHost} from '../../src/host/fesm2015_host';
 import {Renderer} from '../../src/rendering/renderer';
 
 class TestRenderer extends Renderer {
+  constructor(host: Fesm2015ReflectionHost) { super(host, false, null, '/src', '/dist'); }
   addImports(output: MagicString, imports: {name: string, as: string}[]) {
     output.prepend('\n// ADD IMPORTS\n');
   }
@@ -33,118 +35,113 @@ class TestRenderer extends Renderer {
   }
 }
 
-function createTestRenderer() {
+function createTestRenderer(file: {name: string, contents: string}) {
-  const renderer = new TestRenderer({} as Fesm2015ReflectionHost, false, null);
+  const program = makeProgram(file);
+  const host = new Fesm2015ReflectionHost(false, program.getTypeChecker());
+  const decorationAnalyses =
+      new DecorationAnalyzer(program.getTypeChecker(), host, [''], false).analyzeProgram(program);
+  const switchMarkerAnalyses = new SwitchMarkerAnalyzer(host).analyzeProgram(program);
+  const renderer = new TestRenderer(host);
   spyOn(renderer, 'addImports').and.callThrough();
   spyOn(renderer, 'addDefinitions').and.callThrough();
   spyOn(renderer, 'removeDecorators').and.callThrough();
-  return renderer as jasmine.SpyObj<TestRenderer>;
-}
 
-function analyze(file: {name: string, contents: string}) {
+  return {renderer, program, decorationAnalyses, switchMarkerAnalyses};
-  const program = makeProgram(file);
-  const host = new Fesm2015ReflectionHost(false, program.getTypeChecker());
-  const analyzer = new DecorationAnalyzer(program.getTypeChecker(), host, [''], false);
-
-  const decoratedFiles = host.findDecoratedFiles(program.getSourceFile(file.name) !);
-  const analyzedFiles = Array.from(decoratedFiles.values()).map(file => analyzer.analyzeFile(file));
-
-  return {program, host, analyzer, decoratedFiles, analyzedFiles};
 }
 
 
 describe('Renderer', () => {
   const INPUT_PROGRAM = {
-    name: '/file.js',
+    name: '/src/file.js',
     contents:
         `import { Directive } from '@angular/core';\nexport class A {\n    foo(x) {\n        return x;\n    }\n}\nA.decorators = [\n    { type: Directive, args: [{ selector: '[a]' }] }\n];\n`
   };
+
   const INPUT_PROGRAM_MAP = fromObject({
     'version': 3,
-    'file': '/file.js',
+    'file': '/src/file.js',
     'sourceRoot': '',
-    'sources': ['/file.ts'],
+    'sources': ['/src/file.ts'],
     'names': [],
     'mappings':
         'AAAA,OAAO,EAAE,SAAS,EAAE,MAAM,eAAe,CAAC;AAC1C,MAAM;IACF,GAAG,CAAC,CAAS;QACT,OAAO,CAAC,CAAC;IACb,CAAC;;AACM,YAAU,GAAG;IAChB,EAAE,IAAI,EAAE,SAAS,EAAE,IAAI,EAAE,CAAC,EAAE,QAAQ,EAAE,KAAK,EAAE,CAAC,EAAE;CACnD,CAAC',
-    'sourcesContent': [
+    'sourcesContent': [INPUT_PROGRAM.contents]
-      'import { Directive } from \'@angular/core\';\nexport class A {\n    foo(x: string): string {\n        return x;\n    }\n    static decorators = [\n        { type: Directive, args: [{ selector: \'[a]\' }] }\n    ];\n}'
-    ]
   });
+
   const RENDERED_CONTENTS =
-      `\n// REWRITTEN DECLARATIONS\n\n// REMOVE DECORATORS\n\n// ADD IMPORTS\n\n// ADD CONSTANTS\n\n// ADD DEFINITIONS\n` +
+      `\n// REMOVE DECORATORS\n\n// ADD IMPORTS\n\n// ADD CONSTANTS\n\n// ADD DEFINITIONS\n` +
       INPUT_PROGRAM.contents;
+
   const OUTPUT_PROGRAM_MAP = fromObject({
     'version': 3,
-    'file': '/output_file.js',
+    'file': '/dist/file.js',
-    'sources': ['/file.js'],
+    'sources': ['/src/file.js'],
-    'sourcesContent': [
+    'sourcesContent': [INPUT_PROGRAM.contents],
-      'import { Directive } from \'@angular/core\';\nexport class A {\n    foo(x) {\n        return x;\n    }\n}\nA.decorators = [\n    { type: Directive, args: [{ selector: \'[a]\' }] }\n];\n'
-    ],
     'names': [],
-    'mappings': ';;;;;;;;;;AAAA;;;;;;;;;'
+    'mappings': ';;;;;;;;AAAA;;;;;;;;;'
   });
 
   const MERGED_OUTPUT_PROGRAM_MAP = fromObject({
     'version': 3,
-    'sources': ['/file.ts'],
+    'sources': ['/src/file.ts'],
     'names': [],
-    'mappings': ';;;;;;;;;;AAAA',
+    'mappings': ';;;;;;;;AAAA',
-    'file': '/output_file.js',
+    'file': '/dist/file.js',
-    'sourcesContent': [
+    'sourcesContent': [INPUT_PROGRAM.contents]
-      'import { Directive } from \'@angular/core\';\nexport class A {\n    foo(x: string): string {\n        return x;\n    }\n    static decorators = [\n        { type: Directive, args: [{ selector: \'[a]\' }] }\n    ];\n}'
-    ]
   });
 
-  describe('renderFile()', () => {
+  describe('renderProgram()', () => {
     it('should render the modified contents; and a new map file, if the original provided no map file.',
        () => {
-         const renderer = createTestRenderer();
+         const {renderer, program, decorationAnalyses, switchMarkerAnalyses} =
-         const {analyzedFiles} = analyze(INPUT_PROGRAM);
+             createTestRenderer(INPUT_PROGRAM);
-         const result = renderer.renderFile(analyzedFiles[0], '/output_file.js');
+         const result = renderer.renderProgram(program, decorationAnalyses, switchMarkerAnalyses);
-         expect(result.source.path).toEqual('/output_file.js');
+         expect(result[0].path).toEqual('/dist/file.js');
-         expect(result.source.contents)
+         expect(result[0].contents)
-             .toEqual(RENDERED_CONTENTS + '\n' + generateMapFileComment('/output_file.js.map'));
+             .toEqual(RENDERED_CONTENTS + '\n' + generateMapFileComment('/dist/file.js.map'));
-         expect(result.map !.path).toEqual('/output_file.js.map');
+         expect(result[1].path).toEqual('/dist/file.js.map');
-         expect(result.map !.contents).toEqual(OUTPUT_PROGRAM_MAP.toJSON());
+         expect(result[1].contents).toEqual(OUTPUT_PROGRAM_MAP.toJSON());
        });
 
     it('should call addImports with the source code and info about the core Angular library.',
        () => {
-         const renderer = createTestRenderer();
+         const {decorationAnalyses, program, renderer, switchMarkerAnalyses} =
-         const {analyzedFiles} = analyze(INPUT_PROGRAM);
+             createTestRenderer(INPUT_PROGRAM);
-         renderer.renderFile(analyzedFiles[0], '/output_file.js');
+         renderer.renderProgram(program, decorationAnalyses, switchMarkerAnalyses);
-         expect(renderer.addImports.calls.first().args[0].toString()).toEqual(RENDERED_CONTENTS);
+         const addImportsSpy = renderer.addImports as jasmine.Spy;
-         expect(renderer.addImports.calls.first().args[1]).toEqual([
+         expect(addImportsSpy.calls.first().args[0].toString()).toEqual(RENDERED_CONTENTS);
+         expect(addImportsSpy.calls.first().args[1]).toEqual([
            {name: '@angular/core', as: 'ɵngcc0'}
          ]);
        });
 
     it('should call addDefinitions with the source code, the analyzed class and the renderered definitions.',
        () => {
-         const renderer = createTestRenderer();
+         const {decorationAnalyses, program, renderer, switchMarkerAnalyses} =
-         const {analyzedFiles} = analyze(INPUT_PROGRAM);
+             createTestRenderer(INPUT_PROGRAM);
-         renderer.renderFile(analyzedFiles[0], '/output_file.js');
+         renderer.renderProgram(program, decorationAnalyses, switchMarkerAnalyses);
-         expect(renderer.addDefinitions.calls.first().args[0].toString())
+         const addDefinitionsSpy = renderer.addDefinitions as jasmine.Spy;
-             .toEqual(RENDERED_CONTENTS);
+         expect(addDefinitionsSpy.calls.first().args[0].toString()).toEqual(RENDERED_CONTENTS);
-         expect(renderer.addDefinitions.calls.first().args[1])
+         expect(addDefinitionsSpy.calls.first().args[1]).toEqual(jasmine.objectContaining({
-             .toBe(analyzedFiles[0].analyzedClasses[0]);
+           name: 'A',
-         expect(renderer.addDefinitions.calls.first().args[2])
+           decorators: [jasmine.objectContaining({name: 'Directive'})],
+         }));
+         expect(addDefinitionsSpy.calls.first().args[2])
              .toEqual(
                  `A.ngDirectiveDef = ɵngcc0.ɵdefineDirective({ type: A, selectors: [["", "a", ""]], factory: function A_Factory(t) { return new (t || A)(); }, features: [ɵngcc0.ɵPublicFeature] });`);
        });
 
     it('should call removeDecorators with the source code, a map of class decorators that have been analyzed',
        () => {
-         const renderer = createTestRenderer();
+         const {decorationAnalyses, program, renderer, switchMarkerAnalyses} =
-         const {analyzedFiles} = analyze(INPUT_PROGRAM);
+             createTestRenderer(INPUT_PROGRAM);
-         renderer.renderFile(analyzedFiles[0], '/output_file.js');
+         renderer.renderProgram(program, decorationAnalyses, switchMarkerAnalyses);
-         expect(renderer.removeDecorators.calls.first().args[0].toString())
+         const removeDecoratorsSpy = renderer.removeDecorators as jasmine.Spy;
-             .toEqual(RENDERED_CONTENTS);
+         expect(removeDecoratorsSpy.calls.first().args[0].toString()).toEqual(RENDERED_CONTENTS);
 
          // Each map key is the TS node of the decorator container
          // Each map value is an array of TS nodes that are the decorators to remove
-         const map = renderer.removeDecorators.calls.first().args[1] as Map<ts.Node, ts.Node[]>;
+         const map = removeDecoratorsSpy.calls.first().args[1] as Map<ts.Node, ts.Node[]>;
          const keys = Array.from(map.keys());
          expect(keys.length).toEqual(1);
          expect(keys[0].getText())
@@ -157,34 +154,31 @@ describe('Renderer', () => {
 
     it('should merge any inline source map from the original file and write the output as an inline source map',
        () => {
-         const renderer = createTestRenderer();
+         const {decorationAnalyses, program, renderer, switchMarkerAnalyses} = createTestRenderer({
-         const {analyzedFiles} = analyze({
            ...INPUT_PROGRAM,
            contents: INPUT_PROGRAM.contents + '\n' + INPUT_PROGRAM_MAP.toComment()
          });
-         const result = renderer.renderFile(analyzedFiles[0], '/output_file.js');
+         const result = renderer.renderProgram(program, decorationAnalyses, switchMarkerAnalyses);
-         expect(result.source.path).toEqual('/output_file.js');
+         expect(result[0].path).toEqual('/dist/file.js');
-         expect(result.source.contents)
+         expect(result[0].contents)
              .toEqual(RENDERED_CONTENTS + '\n' + MERGED_OUTPUT_PROGRAM_MAP.toComment());
-         expect(result.map).toBe(null);
+         expect(result[1]).toBeUndefined();
        });
 
     it('should merge any external source map from the original file and write the output to an external source map',
        () => {
          // Mock out reading the map file from disk
-         const readFileSyncSpy =
          spyOn(fs, 'readFileSync').and.returnValue(INPUT_PROGRAM_MAP.toJSON());
-         const renderer = createTestRenderer();
+         const {decorationAnalyses, program, renderer, switchMarkerAnalyses} = createTestRenderer({
-         const {analyzedFiles} = analyze({
            ...INPUT_PROGRAM,
            contents: INPUT_PROGRAM.contents + '\n//# sourceMappingURL=file.js.map'
          });
-         const result = renderer.renderFile(analyzedFiles[0], '/output_file.js');
+         const result = renderer.renderProgram(program, decorationAnalyses, switchMarkerAnalyses);
-         expect(result.source.path).toEqual('/output_file.js');
+         expect(result[0].path).toEqual('/dist/file.js');
-         expect(result.source.contents)
+         expect(result[0].contents)
-             .toEqual(RENDERED_CONTENTS + '\n' + generateMapFileComment('/output_file.js.map'));
+             .toEqual(RENDERED_CONTENTS + '\n' + generateMapFileComment('/dist/file.js.map'));
-         expect(result.map !.path).toEqual('/output_file.js.map');
+         expect(result[1].path).toEqual('/dist/file.js.map');
-         expect(result.map !.contents).toEqual(MERGED_OUTPUT_PROGRAM_MAP.toJSON());
+         expect(result[1].contents).toEqual(MERGED_OUTPUT_PROGRAM_MAP.toJSON());
        });
   });
 });