Add a tool to write all combined macro generated content.
Change-Id: I08554397016255bff82e6c420b8795999ba5990f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/210427
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Jake Macdonald <jakemac@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
diff --git a/pkg/analyzer/tool/macro/generate.dart b/pkg/analyzer/tool/macro/generate.dart
new file mode 100644
index 0000000..2cc9a41
--- /dev/null
+++ b/pkg/analyzer/tool/macro/generate.dart
@@ -0,0 +1,72 @@
+// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:io' as io;
+
+import 'package:analyzer/dart/analysis/analysis_context_collection.dart';
+import 'package:analyzer/dart/analysis/results.dart';
+import 'package:analyzer/file_system/physical_file_system.dart';
+import 'package:analyzer/src/dart/element/element.dart';
+import 'package:analyzer/src/util/file_paths.dart' as file_paths;
+
+void main(List<String> arguments) async {
+ if (arguments.length != 1) {
+ _printUsage();
+ io.exit(1);
+ }
+
+ var resourceProvider = PhysicalResourceProvider.INSTANCE;
+ var pathContext = resourceProvider.pathContext;
+
+ // The directory must exist.
+ var packagePath = arguments[0];
+ var packageFolder = resourceProvider.getFolder(packagePath);
+ if (!packageFolder.exists) {
+ print('Error: $packagePath does not exist.');
+ io.exit(1);
+ }
+
+ // The directory must be a Pub package.
+ var pubspecYamlFile = packageFolder.getChildAssumingFile(
+ file_paths.pubspecYaml,
+ );
+ if (!pubspecYamlFile.exists) {
+ print('Error: ${pubspecYamlFile.path} does not exist.');
+ io.exit(1);
+ }
+
+ var collection = AnalysisContextCollection(
+ includedPaths: [packagePath],
+ );
+ for (var analysisContext in collection.contexts) {
+ var analyzedPaths = analysisContext.contextRoot.analyzedFiles();
+ for (var path in analyzedPaths) {
+ if (file_paths.isDart(pathContext, path)) {
+ var session = analysisContext.currentSession;
+ var unitElementResult = await session.getUnitElement(path);
+ if (unitElementResult is UnitElementResult) {
+ var unitElement =
+ unitElementResult.element as CompilationUnitElementImpl;
+ // If has macro-generated content, write it.
+ var macroGeneratedContent = unitElement.macroGeneratedContent;
+ if (macroGeneratedContent != null) {
+ var relativePath = pathContext.relative(path, from: packagePath);
+ var combinedPath = pathContext.join(
+ packagePath, '.dart_tool', 'analyzer', 'macro', relativePath);
+ resourceProvider.getFile(combinedPath)
+ ..parent2.create()
+ ..writeAsStringSync(macroGeneratedContent);
+ }
+ }
+ }
+ }
+ }
+}
+
+void _printUsage() {
+ print('''
+Usage: dart generate.dart path-to-pub-package
+Write combined code of files that have macro-generated declarations.
+''');
+}
