use some more polyfill features

Directory.Packages.props

@@ -25,7 +25,7 @@
     <PackageVersion Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" />
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.9.2" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.11.0" />
-    <PackageVersion Include="Polyfill" Version="6.2.0" />
+    <PackageVersion Include="Polyfill" Version="6.8.0" PrivateAssets="all" />
     <PackageVersion Include="PolySharp" Version="1.14.1" />
     <PackageVersion Include="PublicApiGenerator" Version="11.1.0" />
     <PackageVersion Include="System.Collections.Immutable" Version="8.0.0" />

SpreadCheetah.SourceGenerator.Test/Helpers/TestData.cs

@@ -1,10 +1,9 @@
-using SpreadCheetah.SourceGenerator.Test.Helpers.Backporting;
 using SpreadCheetah.SourceGenerator.Test.Models;
 using Xunit;
 
 namespace SpreadCheetah.SourceGenerator.Test.Helpers;
 
 internal static class TestData
 {
-    public static TheoryData<ObjectType> ObjectTypes => EnumHelper.GetValues<ObjectType>().ToTheoryData();
+    public static TheoryData<ObjectType> ObjectTypes => EnumPolyfill.GetValues<ObjectType>().ToTheoryData();
 }

SpreadCheetah.Test/Helpers/TestData.cs

@@ -4,10 +4,10 @@ namespace SpreadCheetah.Test.Helpers;
 
 internal static class TestData
 {
-    private static readonly CellType[] CellTypeArray = EnumHelper.GetValues<CellType>();
+    private static readonly CellType[] CellTypeArray = EnumPolyfill.GetValues<CellType>();
     private static readonly CellType[] StyledCellTypeArray = [CellType.StyledCell, CellType.Cell];
-    private static readonly CellValueType[] CellValueTypeArray = EnumHelper.GetValues<CellValueType>();
-    private static readonly RowCollectionType[] RowCollectionTypeArray = EnumHelper.GetValues<RowCollectionType>();
+    private static readonly CellValueType[] CellValueTypeArray = EnumPolyfill.GetValues<CellValueType>();
+    private static readonly RowCollectionType[] RowCollectionTypeArray = EnumPolyfill.GetValues<RowCollectionType>();
 
     public static IEnumerable<object?[]> CellTypes()
     {

SpreadCheetah.Test/Tests/SpreadsheetStyledRowTests.cs

@@ -3,7 +3,6 @@
 using DocumentFormat.OpenXml.Spreadsheet;
 using SpreadCheetah.Styling;
 using SpreadCheetah.Test.Helpers;
-using SpreadCheetah.Test.Helpers.Backporting;
 using System.Globalization;
 using Alignment = SpreadCheetah.Styling.Alignment;
 using Border = SpreadCheetah.Styling.Border;
@@ -537,7 +536,7 @@ public async Task Spreadsheet_AddRow_DateTimeNumberFormat(bool withExplicitNumbe
         Assert.True(actualCell.Style.Font.Italic);
     }
 
-    public static IEnumerable<object?[]> BorderStyles() => TestData.CombineWithStyledCellTypes(EnumHelper.GetValues<BorderStyle>());
+    public static IEnumerable<object?[]> BorderStyles() => TestData.CombineWithStyledCellTypes(EnumPolyfill.GetValues<BorderStyle>());
 
     [Theory]
     [MemberData(nameof(BorderStyles))]
@@ -576,7 +575,7 @@ public async Task Spreadsheet_AddRow_BorderStyle(BorderStyle borderStyle, CellTy
         Assert.Equal(XLBorderStyleValues.None, actualBorder.DiagonalBorder);
     }
 
-    public static IEnumerable<object?[]> DiagonalBorderTypes() => TestData.CombineWithStyledCellTypes(EnumHelper.GetValues<DiagonalBorderType>());
+    public static IEnumerable<object?[]> DiagonalBorderTypes() => TestData.CombineWithStyledCellTypes(EnumPolyfill.GetValues<DiagonalBorderType>());
 
     [Theory]
     [MemberData(nameof(DiagonalBorderTypes))]
@@ -681,7 +680,7 @@ public async Task Spreadsheet_AddRow_MultipleBorders(CellType type, RowCollectio
         Assert.Equal(XLColor.Black, actualBorder.DiagonalBorderColor);
     }
 
-    public static IEnumerable<object?[]> HorizontalAlignments() => TestData.CombineWithStyledCellTypes(EnumHelper.GetValues<HorizontalAlignment>());
+    public static IEnumerable<object?[]> HorizontalAlignments() => TestData.CombineWithStyledCellTypes(EnumPolyfill.GetValues<HorizontalAlignment>());
 
     [Theory]
     [MemberData(nameof(HorizontalAlignments))]
@@ -715,7 +714,7 @@ public async Task Spreadsheet_AddRow_HorizontalAlignment(HorizontalAlignment ali
         Assert.False(actualAlignment.WrapText);
     }
 
-    public static IEnumerable<object?[]> VerticalAlignments() => TestData.CombineWithStyledCellTypes(EnumHelper.GetValues<VerticalAlignment>());
+    public static IEnumerable<object?[]> VerticalAlignments() => TestData.CombineWithStyledCellTypes(EnumPolyfill.GetValues<VerticalAlignment>());
 
     [Theory]
     [MemberData(nameof(VerticalAlignments))]
@@ -1150,7 +1149,7 @@ public async Task Spreadsheet_AddRow_ExplicitCellReferencesForLongStringValueSty
         Assert.Equal(expectedRow1Refs, actualSheet2Refs);
     }
 
-    public static IEnumerable<object?[]> ExplicitStandardNumberFormats() => TestData.CombineWithStyledCellTypes(EnumHelper.GetValues<StandardNumberFormat>());
+    public static IEnumerable<object?[]> ExplicitStandardNumberFormats() => TestData.CombineWithStyledCellTypes(EnumPolyfill.GetValues<StandardNumberFormat>());
 
     [Theory]
     [MemberData(nameof(ExplicitStandardNumberFormats))]

SpreadCheetah/Helpers/FileCounter.cs

@@ -14,7 +14,7 @@ internal sealed class FileCounter
 
     public void AddEmbeddedImage(ImageType type)
     {
-        Debug.Assert(type > ImageType.None && EnumHelper.IsDefined(type));
+        Debug.Assert(type > ImageType.None && EnumPolyfill.IsDefined(type));
 
         if (type == ImageType.Png)
             EmbeddedImageTypes |= EmbeddedImageTypes.Png;

SpreadCheetah/Spreadsheet.cs

@@ -439,7 +439,7 @@ public StyleId AddStyle(Style style, string name, StyleNameVisibility? nameVisib
             ThrowHelper.StyleNameStartsOrEndsWithWhiteSpace(nameof(name));
         if (name.Equals("Normal", StringComparison.OrdinalIgnoreCase))
             ThrowHelper.StyleNameCanNotEqualNormal(nameof(name));
-        if (nameVisibility is { } visibility && !EnumHelper.IsDefined(visibility))
+        if (nameVisibility is { } visibility && !EnumPolyfill.IsDefined(visibility))
             ThrowHelper.EnumValueInvalid(nameof(nameVisibility), nameVisibility);
 
         var styleManager = _styleManager ??= new(defaultDateTimeFormat: null);

SpreadCheetah/Styling/Alignment.cs

@@ -16,7 +16,7 @@ public HorizontalAlignment Horizontal
         get => _horizontal;
         set
         {
-            if (!EnumHelper.IsDefined(value))
+            if (!EnumPolyfill.IsDefined(value))
                 ThrowHelper.EnumValueInvalid(nameof(value), value);
             else
                 _horizontal = value;
@@ -31,7 +31,7 @@ public VerticalAlignment Vertical
         get => _vertical;
         set
         {
-            if (!EnumHelper.IsDefined(value))
+            if (!EnumPolyfill.IsDefined(value))
                 ThrowHelper.EnumValueInvalid(nameof(value), value);
             else
                 _vertical = value;

SpreadCheetah/Styling/NumberFormat.cs

@@ -11,7 +11,7 @@ namespace SpreadCheetah.Styling;
     private NumberFormat(string? customFormat, StandardNumberFormat? standardFormat)
     {
         CustomFormat = customFormat.WithEnsuredMaxLength(255);
-        StandardFormat = (standardFormat is not { } format || EnumHelper.IsDefined(format))
+        StandardFormat = (standardFormat is not { } format || EnumPolyfill.IsDefined(format))
             ? standardFormat
             : throw new ArgumentOutOfRangeException(nameof(standardFormat));
     }

SpreadCheetah/Validations/DataValidation.cs

@@ -67,7 +67,7 @@ private DataValidation(
     public ValidationErrorType ErrorType
     {
         get => _errorType;
-        set => _errorType = EnumHelper.IsDefined(value)
+        set => _errorType = EnumPolyfill.IsDefined(value)
             ? value
             : throw new ArgumentOutOfRangeException(nameof(value), value, null);
     }

SpreadCheetah/Worksheets/WorksheetOptions.cs

@@ -41,7 +41,7 @@ public WorksheetVisibility Visibility
         get => _visibility;
         set
         {
-            if (!EnumHelper.IsDefined(value))
+            if (!EnumPolyfill.IsDefined(value))
                 ThrowHelper.EnumValueInvalid(nameof(value), value);
             else
                 _visibility = value;