remove trackAsDependency and addDependency apis

Author: jakemac53

lib/src/builder/build_step.dart

@@ -14,24 +14,12 @@ abstract class BuildStep {
   Asset get input;
 
   /// Checks if an [Asset] by [id] exists as an input for this [BuildStep].
-  ///
-  /// If [trackAsDependency] is true, then [id] will be marked as a dependency
-  /// of all [expectedOutputs].
-  Future<bool> hasInput(AssetId id, {bool trackAsDependency: true});
+  Future<bool> hasInput(AssetId id);
 
   /// Reads an [Asset] by [id] as a [String] using [encoding].
-  ///
-  /// If [trackAsDependency] is true, then [id] will be marked as a dependency
-  /// of all [expectedOutputs].
-  Future<String> readAsString(AssetId id,
-      {Encoding encoding: UTF8, bool trackAsDependency: true});
+  Future<String> readAsString(AssetId id, {Encoding encoding: UTF8});
 
   /// Outputs an [Asset] using the current [AssetWriter], and adds [asset] to
   /// [outputs].
   void writeAsString(Asset asset, {Encoding encoding: UTF8});
-
-  /// Explicitly adds [id] as a dependency of all [expectedOutputs]. This is
-  /// not generally necessary unless forcing `trackAsDependency: false` when
-  /// calling [readAsString].
-  void addDependency(AssetId id);
 }

lib/src/builder/build_step_impl.dart

@@ -50,22 +50,15 @@ class BuildStepImpl implements BuildStep {
   }
 
   /// Checks if an [Asset] by [id] exists as an input for this [BuildStep].
-  ///
-  /// If [trackAsDependency] is true, then [id] will be marked as a dependency
-  /// of all [expectedOutputs].
-  Future<bool> hasInput(AssetId id, {bool trackAsDependency: true}) {
-    if (trackAsDependency) _dependencies.add(id);
+  Future<bool> hasInput(AssetId id) {
+    _dependencies.add(id);
     return _reader.hasInput(id);
   }
 
   /// Reads an [Asset] by [id] as a [String] using [encoding].
-  ///
-  /// If [trackAsDependency] is true, then [id] will be marked as a dependency
-  /// of all [expectedOutputs].
   @override
-  Future<String> readAsString(AssetId id,
-      {Encoding encoding: UTF8, bool trackAsDependency: true}) {
-    if (trackAsDependency) _dependencies.add(id);
+  Future<String> readAsString(AssetId id, {Encoding encoding: UTF8}) {
+    _dependencies.add(id);
     return _reader.readAsString(id, encoding: encoding);
   }
 
@@ -83,12 +76,4 @@ class BuildStepImpl implements BuildStep {
     var done = _writer.writeAsString(asset, encoding: encoding);
     _outputsCompleted = _outputsCompleted.then((_) => done);
   }
-
-  /// Explicitly adds [id] as a dependency of all [expectedOutputs]. This is
-  /// not generally necessary unless forcing `trackAsDependency: false` when
-  /// calling [readAsString].
-  @override
-  void addDependency(AssetId id) {
-    _dependencies.add(id);
-  }
 }

test/builder/build_step_impl_test.dart

@@ -35,10 +35,6 @@ main() {
         var a2 = makeAssetId();
         await buildStep.readAsString(a2);
         expect(buildStep.dependencies, [primary.id, a1, a2]);
-
-        var a3 = makeAssetId();
-        await buildStep.readAsString(a3, trackAsDependency: false);
-        expect(buildStep.dependencies.contains(a3), isFalse);
       });
 
       test('tracks dependencies on hasInput', () async {
@@ -51,22 +47,6 @@ main() {
         var a2 = makeAssetId();
         await buildStep.hasInput(a2);
         expect(buildStep.dependencies, [primary.id, a1, a2]);
-
-        var a3 = makeAssetId();
-        await buildStep.hasInput(a3, trackAsDependency: false);
-        expect(buildStep.dependencies.contains(a3), isFalse);
-      });
-
-      test('addDependency adds dependencies', () {
-        expect(buildStep.dependencies, [primary.id]);
-
-        var a1 = makeAssetId();
-        buildStep.addDependency(a1);
-        expect(buildStep.dependencies, [primary.id, a1]);
-
-        var a2 = makeAssetId();
-        buildStep.addDependency(a2);
-        expect(buildStep.dependencies, [primary.id, a1, a2]);
       });
 
       test('tracks outputs', () async {