Removed variable _cachedView.

Author: simphotonics

CHANGELOG.md

@@ -1,3 +1,6 @@
+# 0.2.2
+- Removed variable `_cacheView`. Amended `lazy_benchmark.dart`.
+
 # 0.2.1
 - Fixed `LazyList`, `LazySet`, and `LazyMap`. The call method now returns
 the same object until an update of the cache is requested.

benchmark/bin/lazy_benchmark.dart

@@ -3,13 +3,23 @@ import 'dart:math';
 import 'package:benchmark_harness/benchmark_harness.dart';
 import 'package:lazy_memo/lazy_memo.dart';
 
-final lazy = Lazy<double>(() => sqrt(27));
-double testFunc() => sqrt(27);
-late double a;
+final lazy = LazyMap<int, double>(() => <int, double>{
+      27: sqrt(27),
+      29: sqrt(29),
+    });
+Map<int, double> testFunc() => <int, double>{
+      27: sqrt(27),
+      29: sqrt(29),
+    };
+
+late Map<int, double> map;
 
 // Create a new benchmark by extending BenchmarkBase
 class CallBenchmark extends BenchmarkBase {
-  const CallBenchmark() : super('Lazy<double>(() => sqrt(27))   ');
+  const CallBenchmark() : super('''LazyMap<int, double>(() => <int, double>{
+      27: sqrt(27),
+      29: sqrt(29),
+    }); \n''');
 
   static void main() {
     const CallBenchmark().report();
@@ -18,7 +28,7 @@ class CallBenchmark extends BenchmarkBase {
   // The benchmark code.
   @override
   void run() {
-    a = lazy();
+    map = lazy();
   }
 
   // Not measured setup code executed prior to the benchmark runs.
@@ -36,7 +46,10 @@ class CallBenchmark extends BenchmarkBase {
 
 // Create a new benchmark by extending BenchmarkBase
 class FunctionCallBenchmark extends BenchmarkBase {
-  const FunctionCallBenchmark() : super('double testFunc() => sqrt(27)  ');
+  const FunctionCallBenchmark() : super('''<int, double>{
+      27: sqrt(27),
+      29: sqrt(29),
+    }; \n''');
 
   static void main() {
     const FunctionCallBenchmark().report();
@@ -45,7 +58,7 @@ class FunctionCallBenchmark extends BenchmarkBase {
   // The benchmark code.
   @override
   void run() {
-    a = testFunc();
+    map = testFunc();
   }
 
   // Not measured setup code executed prior to the benchmark runs.
@@ -62,6 +75,8 @@ class FunctionCallBenchmark extends BenchmarkBase {
 }
 
 void main() {
+  print('Returning cached map:');
   CallBenchmark.main();
+  print('\nBuilding map object:');
   FunctionCallBenchmark.main();
 }

lib/src/lazy.dart

@@ -56,24 +56,17 @@ class LazyList<T> extends Lazy<List<T>> {
   /// Constructs an object of type `LazyList<T>`.
   LazyList(super.objectFactory);
 
-  /// Returns the cached object.
-  /// * The object is initialized when first accessed.
-  /// * To re-initialize the cached object use the
-  ///   optional parameter `updateCache`.
   @override
   List<T> call({
     bool updateCache = false,
   }) {
     if (updateCache || !_isUpToDate) {
       _isUpToDate = true;
-      _cache = objectFactory();
-      _cacheView = UnmodifiableListView(_cache);
+      _cache = UnmodifiableListView(objectFactory());
     }
-    return _cacheView;
+    return _cache;
   }
 
-  late UnmodifiableListView<T> _cacheView;
-
   @override
   String toString() {
     return 'LazyList<$T>: ${call()}';
@@ -90,24 +83,17 @@ class LazySet<T> extends Lazy<Set<T>> {
   /// Constructs an object of type `LazySet<T>`.
   LazySet(super.objectFactory);
 
-  /// Returns the cached object.
-  /// * The object is initialized when first accessed.
-  /// * To re-initialize the cached object use the
-  ///   optional parameter `updateCache`.
   @override
   Set<T> call({
     bool updateCache = false,
   }) {
     if (updateCache || !_isUpToDate) {
       _isUpToDate = true;
-      _cache = objectFactory();
-      _cacheView = UnmodifiableSetView(_cache);
+      _cache = UnmodifiableSetView(objectFactory());
     }
-    return _cacheView;
+    return _cache;
   }
 
-  late UnmodifiableSetView<T> _cacheView;
-
   @override
   String toString() {
     return 'LazySet<$T>: ${call()}';
@@ -124,26 +110,19 @@ class LazyMap<K, V> extends Lazy<Map<K, V>> {
   /// Constructs an object of type `LazyMap<T>`.
   LazyMap(super.objectFactory);
 
-  /// Returns the cached object.
-  /// * The object is initialized when first accessed.
-  /// * To re-initialize the cached object use the
-  ///   optional parameter `updateCache`.
   @override
   Map<K, V> call({
     bool updateCache = false,
   }) {
     if (updateCache || !_isUpToDate) {
       _isUpToDate = true;
-      _cache = objectFactory();
-      _cacheView = UnmodifiableMapView(_cache);
+      _cache = UnmodifiableMapView(objectFactory());
     }
-    return _cacheView;
+    return _cache;
   }
 
-  late UnmodifiableMapView<K, V> _cacheView;
-
   @override
   String toString() {
-    return 'LazyMap<K, V>: ${call()}';
+    return 'LazyMap<$K, $V>: ${call()}';
   }
 }

pubspec.yaml

@@ -3,7 +3,7 @@ name: lazy_memo
 description: Lazy variables that can be marked for re-initialization and
   memoized single and double argument functions.
 
-version: 0.2.1
+version: 0.2.2
 
 homepage: https://github.com/simphotonics/lazy_memo