Minor codegen improvements

Sergio0694 · Sergio0694 · commit 905307f7434a · 2021-02-13T00:16:27.000+01:00
diff --git a/Microsoft.Toolkit.Mvvm/Input/AsyncRelayCommand{T}.cs b/Microsoft.Toolkit.Mvvm/Input/AsyncRelayCommand{T}.cs
@@ -131,7 +131,7 @@ public bool CanExecute(T? parameter)
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public bool CanExecute(object? parameter)
         {
-            if (typeof(T).IsValueType &&
+            if (default(T) is not null &&
                 parameter is null &&
                 this.canExecute is null)
             {
diff --git a/Microsoft.Toolkit.Mvvm/Input/RelayCommand{T}.cs b/Microsoft.Toolkit.Mvvm/Input/RelayCommand{T}.cs
@@ -76,7 +76,7 @@ public bool CanExecute(T? parameter)
         /// <inheritdoc/>
         public bool CanExecute(object? parameter)
         {
-            if (typeof(T).IsValueType &&
+            if (default(T) is not null &&
                 parameter is null &&
                 this.canExecute is null)
             {

Original file line number	Diff line number	Diff line change
`@@ -131,7 +131,7 @@ public bool CanExecute(T? parameter)`
`131`	`131`	`[MethodImpl(MethodImplOptions.AggressiveInlining)]`
`132`	`132`	`public bool CanExecute(object? parameter)`
`133`	`133`	`{`
`134`		`- if (typeof(T).IsValueType &&`
	`134`	`+ if (default(T) is not null &&`
`135`	`135`	`parameter is null &&`
`136`	`136`	`this.canExecute is null)`
`137`	`137`	`{`
Original file line number	Diff line number	Diff line change
`@@ -76,7 +76,7 @@ public bool CanExecute(T? parameter)`
`76`	`76`	`/// <inheritdoc/>`
`77`	`77`	`public bool CanExecute(object? parameter)`
`78`	`78`	`{`
`79`		`- if (typeof(T).IsValueType &&`
	`79`	`+ if (default(T) is not null &&`
`80`	`80`	`parameter is null &&`
`81`	`81`	`this.canExecute is null)`
`82`	`82`	`{`