From b00b80a45bd78b5fc5f695ccfc41d15f48dbde6d Mon Sep 17 00:00:00 2001
From: Alex Eagle <alexeagle@google.com>
Date: Mon, 5 Jun 2017 11:34:25 -0700
Subject: [PATCH] feat(compiler-cli): introduce synchronous codegen API

---
 packages/compiler-cli/src/codegen.ts       | 29 ++++++++++++++--------
 packages/compiler-cli/src/compiler_host.ts |  4 ++-
 packages/compiler/src/i18n/extractor.ts    |  2 +-
 3 files changed, 22 insertions(+), 13 deletions(-)

diff --git a/packages/compiler-cli/src/codegen.ts b/packages/compiler-cli/src/codegen.ts
index 25a3bac8a6..47c0f96e49 100644
--- a/packages/compiler-cli/src/codegen.ts
+++ b/packages/compiler-cli/src/codegen.ts
@@ -40,17 +40,24 @@ export class CodeGenerator {
     return this.compiler
         .analyzeModulesAsync(this.program.getSourceFiles().map(
             sf => this.ngCompilerHost.getCanonicalFileName(sf.fileName)))
-        .then(analyzedModules => this.compiler.emitAllImpls(analyzedModules))
-        .then(generatedModules => {
-          return generatedModules.map(generatedModule => {
-            const sourceFile = this.program.getSourceFile(generatedModule.srcFileUrl);
-            const emitPath = this.ngCompilerHost.calculateEmitPath(generatedModule.genFileUrl);
-            const source =
-                generatedModule.source || compiler.toTypeScript(generatedModule, PREAMBLE);
-            this.host.writeFile(emitPath, source, false, () => {}, [sourceFile]);
-            return emitPath;
-          });
-        });
+        .then(analyzedModules => this.emit(analyzedModules));
+  }
+
+  codegenSync(): string[] {
+    const analyzed = this.compiler.analyzeModulesSync(this.program.getSourceFiles().map(
+        sf => this.ngCompilerHost.getCanonicalFileName(sf.fileName)));
+    return this.emit(analyzed);
+  }
+
+  private emit(analyzedModules: compiler.NgAnalyzedModules) {
+    const generatedModules = this.compiler.emitAllImpls(analyzedModules);
+    return generatedModules.map(generatedModule => {
+      const sourceFile = this.program.getSourceFile(generatedModule.srcFileUrl);
+      const emitPath = this.ngCompilerHost.calculateEmitPath(generatedModule.genFileUrl);
+      const source = generatedModule.source || compiler.toTypeScript(generatedModule, PREAMBLE);
+      this.host.writeFile(emitPath, source, false, () => {}, [sourceFile]);
+      return emitPath;
+    });
   }
 
   static create(
diff --git a/packages/compiler-cli/src/compiler_host.ts b/packages/compiler-cli/src/compiler_host.ts
index afb1d6f4a8..41d781a9ad 100644
--- a/packages/compiler-cli/src/compiler_host.ts
+++ b/packages/compiler-cli/src/compiler_host.ts
@@ -258,7 +258,9 @@ export class CompilerHost implements AotCompilerHost {
     return v3Metadata;
   }
 
-  loadResource(filePath: string): Promise<string> { return this.context.readResource(filePath); }
+  loadResource(filePath: string): Promise<string>|string {
+    return this.context.readResource(filePath);
+  }
 
   loadSummary(filePath: string): string|null {
     if (this.context.fileExists(filePath)) {
diff --git a/packages/compiler/src/i18n/extractor.ts b/packages/compiler/src/i18n/extractor.ts
index 5b4c2922ef..9af0ac30d4 100644
--- a/packages/compiler/src/i18n/extractor.ts
+++ b/packages/compiler/src/i18n/extractor.ts
@@ -41,7 +41,7 @@ export interface ExtractorHost extends StaticSymbolResolverHost, AotSummaryResol
   /**
    * Loads a resource (e.g. html / css)
    */
-  loadResource(path: string): Promise<string>;
+  loadResource(path: string): Promise<string>|string;
 }
 
 export class Extractor {