From 9b29c4f9a8d710430a70b0518a58e970f04c73a5 Mon Sep 17 00:00:00 2001
From: Yue Yang <g1enyy0ung@gmail.com>
Date: Fri, 4 Feb 2022 00:45:30 +0800
Subject: [PATCH] 0.8.0

---
 CHANGELOG.md     | 15 +++++++++++++++
 lib/src/day.dart | 20 ++++++++++++++------
 pubspec.yaml     |  2 +-
 3 files changed, 30 insertions(+), 7 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9820c7a..eaa66d7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,21 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.8.0] - 2022-02-04
+
+### Added
+
+- feat: add method `addRound` to prevent date overflow by @g1eny0ung in <https://github.com/dayjs/day.dart/pull/41>
+- feat: add method `subtractRound` to prevent date overflow by @g1eny0ung in <https://github.com/dayjs/day.dart/pull/42>
+
+### Changed
+
+- chore!: now `.add()` and `.subtract()` return nullable
+
+### Removed
+
+- chore!: remove useless `.isValid()`
+
 ## [0.7.2] - 2022-01-17
 
 - Refactor internal `Unit`
diff --git a/lib/src/day.dart b/lib/src/day.dart
index 6dc803d..55fa0dc 100644
--- a/lib/src/day.dart
+++ b/lib/src/day.dart
@@ -395,7 +395,7 @@ class Day {
     return null;
   }
 
-  /// Add [val] by [unit]. Supports shorthand.
+  /// Adds [val] by [unit]. Supports shorthand.
   ///
   /// Example:
   ///
@@ -405,18 +405,18 @@ class Day {
   /// ```
   Day? add(int val, String unit) => _add(val: val, unit: unit);
 
-  /// Add [val] by [unit] but rounded. Supports shorthand.
+  /// Adds [val] by [unit] but rounded. Supports shorthand.
   ///
   /// Example:
   ///
   /// ```dart
   /// addRound(1, 'month');
-  /// add(1, 'M');
+  /// addRound(1, 'M');
   /// ```
   Day? addRound(int val, String unit) =>
       _add(val: val, unit: unit, rounded: true);
 
-  /// Subtract [val] by [unit]. Supports shorthand.
+  /// Subtracts [val] by [unit]. Supports shorthand.
   ///
   /// Example:
   ///
@@ -427,14 +427,22 @@ class Day {
   Day? subtract(int val, String unit) =>
       _add(val: val, unit: unit, opposite: true);
 
+  /// Subtracts [val] by [unit] but rounded. Supports shorthand.
+  ///
+  /// Example:
+  ///
+  /// ```dart
+  /// subtractRound(1, 'month');
+  /// subtractRound(1, 'M');
+  /// ```
   Day? subtractRound(int val, String unit) =>
       _add(val: val, unit: unit, opposite: true, rounded: true);
 
   /// Alias of [add].
-  dynamic inc(int val, String unit) => add(val, unit);
+  Day? inc(int val, String unit) => add(val, unit);
 
   /// Alias of [subtract].
-  dynamic dec(int val, String unit) => subtract(val, unit);
+  Day? dec(int val, String unit) => subtract(val, unit);
 
   /// Format the [Day]'s displaying.
   ///
diff --git a/pubspec.yaml b/pubspec.yaml
index 230b621..f6f187a 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: day
-version: 0.7.2
+version: 0.8.0
 description: >-
   A date library Day.js in dart.
   Day.dart is inspired by Day.js.