Revert "Add APIs for using analyzer element model 2. (#3775)" (#3783)

This reverts commit fbdfb67.

I have forked the repo prior to this revert here https://github.com/dart-lang/build/tree/resolver-2-methods.

The plan is to use that fork internally until all builders are updated to the new APIs. Then we will do a breaking change in this repo to migrate to all the new APIs. We do not plan to publish ever the *2 APIs on pub.

In the short term, we will update our analyzer upper constraints across all packages but not add these new methods or expose the new APIs. Those versions will be published (soon ish) to unblock other work (such as updating to the latest dart_style).

Author: jakemac53

build/CHANGELOG.md

@@ -3,7 +3,7 @@
 - Bump the min sdk to 3.6.0-228.0.dev.
 - Remove some unnecessary casts and non-null assertions now that we have private
   field promotion.
-- Require analyzer ^7.0.0.
+- Require analyzer ^6.9.0.
 - Fix analyzer deprecations.
 
 ## 2.4.1

build/lib/src/analyzer/resolver.dart

@@ -5,7 +5,6 @@ import 'package:analyzer/dart/analysis/results.dart';
 import 'package:analyzer/dart/analysis/session.dart';
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
-import 'package:analyzer/dart/element/element2.dart';
 import 'package:analyzer/error/error.dart';
 
 import '../asset/id.dart';
@@ -30,17 +29,6 @@ abstract class Resolver {
   ///    instance because due to imports or exports.
   Stream<LibraryElement> get libraries;
 
-  /// All libraries resolved by this resolver.
-  ///
-  /// This includes the following libraries:
-  ///  - The primary input of this resolver (in other words, the
-  ///   [BuildStep.inputId] of a build step).
-  ///  - Libraries resolved with a direct [libraryFor] call.
-  ///  - Every public `dart:` library part of the SDK.
-  ///  - All libraries recursively accessible from the mentioned sources, for
-  ///    instance because due to imports or exports.
-  Stream<LibraryElement2> get libraries2;
-
   /// Returns the parsed [AstNode] for [Element].
   ///
   /// This should always be preferred over using the [AnalysisSession]
@@ -54,19 +42,6 @@ abstract class Resolver {
   /// reason.
   Future<AstNode?> astNodeFor(Element element, {bool resolve = false});
 
-  /// Returns the parsed [AstNode] for [Element].
-  ///
-  /// This should always be preferred over using the [AnalysisSession]
-  /// directly, because it avoids [InconsistentAnalysisException] issues.
-  ///
-  /// If [resolve] is `true` then you will get a resolved ast node, otherwise
-  /// it will only be a parsed ast node.
-  ///
-  /// Returns `null` if the ast node can not be found. This can happen if an
-  /// element is coming from a summary, or is unavailable for some other
-  /// reason.
-  Future<AstNode?> astNodeFor2(Fragment element, {bool resolve = false});
-
   /// Returns a parsed AST structor representing the file defined in [assetId].
   ///
   /// * If the [assetId] has syntax errors, and [allowSyntaxErrors] is set to
@@ -85,14 +60,6 @@ abstract class Resolver {
   Future<LibraryElement> libraryFor(AssetId assetId,
       {bool allowSyntaxErrors = false});
 
-  /// Returns a resolved library representing the file defined in [assetId].
-  ///
-  /// * Throws [NonLibraryAssetException] if [assetId] is not a Dart library.
-  /// * If the [assetId] has syntax errors, and [allowSyntaxErrors] is set to
-  ///   `false` (the default), throws a [SyntaxErrorInAssetException].
-  Future<LibraryElement2> libraryFor2(AssetId assetId,
-      {bool allowSyntaxErrors = false});
-
   /// Returns the first resolved library identified by [libraryName].
   ///
   /// A library is resolved if it's recursively accessible from the entry point
@@ -105,19 +72,6 @@ abstract class Resolver {
   /// being unique.
   Future<LibraryElement?> findLibraryByName(String libraryName);
 
-  /// Returns the first resolved library identified by [libraryName].
-  ///
-  /// A library is resolved if it's recursively accessible from the entry point
-  /// or subsequent calls to [libraryFor]. In other words, this searches for
-  /// libraries in [libraries].
-  /// If no library can be found, returns `null`.
-  ///
-  /// **NOTE**: In general, its recommended to use [libraryFor] with an absolute
-  /// asset id instead of a named identifier that has the possibility of not
-  /// being unique.
-  Future<LibraryElement2?> findLibraryByName2(
-      String libraryName);
-
   /// Returns the [AssetId] of the Dart library or part declaring [element].
   ///
   /// If [element] is defined in the SDK or in a summary throws
@@ -127,16 +81,6 @@ abstract class Resolver {
   /// The returned asset is not necessarily the asset that should be imported to
   /// use the element, it may be a part file instead of the library.
   Future<AssetId> assetIdForElement(Element element);
-
-  /// Returns the [AssetId] of the Dart library or part declaring [element].
-  ///
-  /// If [element] is defined in the SDK or in a summary throws
-  /// `UnresolvableAssetException`, although a non-throwing return here does not
-  /// guarantee that the asset is readable.
-  ///
-  /// The returned asset is not necessarily the asset that should be imported to
-  /// use the element, it may be a part file instead of the library.
-  Future<AssetId> assetIdForElement2(Element2 element);
 }
 
 /// A resolver that should be manually released at the end of a build step.

build/lib/src/builder/build_step.dart

@@ -5,7 +5,6 @@ import 'dart:async';
 import 'dart:convert';
 
 import 'package:analyzer/dart/element/element.dart';
-import 'package:analyzer/dart/element/element2.dart';
 import 'package:meta/meta.dart';
 import 'package:package_config/package_config_types.dart';
 
@@ -40,21 +39,6 @@ abstract class BuildStep implements AssetReader, AssetWriter {
   /// ```
   Future<LibraryElement> get inputLibrary;
 
-  /// Resolved library defined by [inputId].
-  ///
-  /// Throws [NonLibraryAssetException] if [inputId] is not a Dart library file.
-  /// Throws [SyntaxErrorInAssetException] if [inputId] contains syntax errors.
-  /// If you want to support libraries with syntax errors, resolve the library
-  /// manually instead of using [inputLibrary]:
-  /// ```dart
-  /// Future<void> build(BuildStep step) async {
-  ///   // Resolve the input library, allowing syntax errors
-  ///   final inputLibrary =
-  ///     await step.resolver.libraryFor(step.inputId, allowSyntaxErrors: true);
-  /// }
-  /// ```
-  Future<LibraryElement2> get inputLibrary2;
-
   /// Gets an instance provided by [resource] which is guaranteed to be unique
   /// within a single build, and may be reused across build steps within a
   /// build if the implementation allows.

build/lib/src/builder/build_step_impl.dart

@@ -7,7 +7,6 @@ import 'dart:convert';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
-import 'package:analyzer/dart/element/element2.dart';
 import 'package:async/async.dart';
 import 'package:crypto/crypto.dart';
 import 'package:glob/glob.dart';
@@ -40,12 +39,6 @@ class BuildStepImpl implements BuildStep {
     return resolver.libraryFor(inputId);
   }
 
-  @override
-  Future<LibraryElement2> get inputLibrary2 async {
-    if (_isComplete) throw BuildStepCompletedException();
-    return resolver.libraryFor2(inputId);
-  }
-
   /// The list of all outputs which are expected/allowed to be output from this
   /// step.
   @override
@@ -227,21 +220,10 @@ class _DelayedResolver implements Resolver {
     return completer.stream;
   }
 
-  @override
-  Stream<LibraryElement2> get libraries2 {
-    var completer = StreamCompleter<LibraryElement2>();
-    _delegate.then((r) => completer.setSourceStream(r.libraries2));
-    return completer.stream;
-  }
-
   @override
   Future<AstNode?> astNodeFor(Element element, {bool resolve = false}) async =>
       (await _delegate).astNodeFor(element, resolve: resolve);
 
-  @override
-  Future<AstNode?> astNodeFor2(Fragment fragment, {bool resolve = false}) async =>
-      (await _delegate).astNodeFor2(fragment, resolve: resolve);
-
   @override
   Future<CompilationUnit> compilationUnitFor(AssetId assetId,
           {bool allowSyntaxErrors = false}) async =>
@@ -254,25 +236,11 @@ class _DelayedResolver implements Resolver {
       (await _delegate)
           .libraryFor(assetId, allowSyntaxErrors: allowSyntaxErrors);
 
-  @override
-  Future<LibraryElement2> libraryFor2(AssetId assetId,
-          {bool allowSyntaxErrors = false}) async =>
-      (await _delegate)
-          .libraryFor2(assetId, allowSyntaxErrors: allowSyntaxErrors);
-
   @override
   Future<LibraryElement?> findLibraryByName(String libraryName) async =>
       (await _delegate).findLibraryByName(libraryName);
 
-  @override
-  Future<LibraryElement2?> findLibraryByName2(String libraryName) async =>
-      (await _delegate).findLibraryByName2(libraryName);
-
   @override
   Future<AssetId> assetIdForElement(Element element) async =>
       (await _delegate).assetIdForElement(element);
-
-  @override
-  Future<AssetId> assetIdForElement2(Element2 element) async =>
-      (await _delegate).assetIdForElement2(element);
 }

build/pubspec.yaml

@@ -11,7 +11,7 @@ environment:
   sdk: ^3.6.0-228.0.dev
 
 dependencies:
-  analyzer: ^7.0.0
+  analyzer: ^6.9.0
   async: ^2.5.0
   convert: ^3.0.0
   crypto: ^3.0.0

build_resolvers/CHANGELOG.md

@@ -6,7 +6,6 @@
 - Fix SDK summary reads when multiple isolates are using build resolvers (not
   recommended).
 - Fix analyzer deprecations.
-- Require analyzer ^7.0.0.
 
 ## 2.4.2