Seal types not suitable for extending

Fluid/Accessors/AsyncDelegateAccessor.cs

@@ -3,7 +3,7 @@
 
 namespace Fluid.Accessors
 {
-    public class AsyncDelegateAccessor : AsyncDelegateAccessor<object, object>
+    public sealed class AsyncDelegateAccessor : AsyncDelegateAccessor<object, object>
     {
         public AsyncDelegateAccessor(Func<object, string, Task<object>> getter) : base((obj, name, ctx) => getter(obj, name))
         {

Fluid/Accessors/DelegateAccessor.cs

@@ -2,7 +2,7 @@
 
 namespace Fluid.Accessors
 {
-    public class DelegateAccessor : DelegateAccessor<object, object>
+    public sealed class DelegateAccessor : DelegateAccessor<object, object>
     {
         public DelegateAccessor(Func<object, string, object> getter) : base((obj, name, ctx) => getter(obj, name))
         {

Fluid/Accessors/MethodInfoAccessor.cs

@@ -2,7 +2,7 @@
 
 namespace Fluid.Accessors
 {
-    public class MethodInfoAccessor : IMemberAccessor
+    public sealed class MethodInfoAccessor : IMemberAccessor
     {
         private readonly MethodInfo _methodInfo;
 

Fluid/Accessors/PropertyInfoAccessor.cs

@@ -3,7 +3,7 @@
 
 namespace Fluid.Accessors
 {
-    public class PropertyInfoAccessor : IMemberAccessor
+    public sealed class PropertyInfoAccessor : IMemberAccessor
     {
         private readonly IInvoker _invoker;
 

Fluid/Ast/AssignStatement.cs

@@ -5,7 +5,7 @@
 
 namespace Fluid.Ast
 {
-    public class AssignStatement : Statement
+    public sealed class AssignStatement : Statement
     {
         public AssignStatement(string identifier, Expression value)
         {

Fluid/Ast/BinaryExpressions/StartsWithBinaryExpression.cs

@@ -3,7 +3,7 @@
 
 namespace Fluid.Ast.BinaryExpressions
 {
-    public class StartsWithBinaryExpression : BinaryExpression
+    public sealed class StartsWithBinaryExpression : BinaryExpression
     {
         public StartsWithBinaryExpression(Expression left, Expression right) : base(left, right)
         {

Fluid/Ast/BinaryExpressions/SubstractBinaryExpression.cs

@@ -2,7 +2,7 @@
 
 namespace Fluid.Ast.BinaryExpressions
 {
-    public class SubstractBinaryExpression : BinaryExpression
+    public sealed class SubstractBinaryExpression : BinaryExpression
     {
         public SubstractBinaryExpression(Expression left, Expression right) : base(left, right)
         {

Fluid/Ast/BreakStatement.cs

@@ -4,7 +4,7 @@
 
 namespace Fluid.Ast
 {
-    public class BreakStatement : Statement
+    public sealed class BreakStatement : Statement
     {
         public override ValueTask<Completion> WriteToAsync(TextWriter writer, TextEncoder encoder, TemplateContext context)
         {

Fluid/Ast/CallbackStatement.cs

@@ -8,7 +8,7 @@ namespace Fluid.Ast
     /// <summary>
     /// An instance of this class is used to execute some custom code in a template.
     /// </summary>
-    public class CallbackStatement : Statement
+    public sealed class CallbackStatement : Statement
     {
         public CallbackStatement(Func<TextWriter, TextEncoder, TemplateContext, ValueTask<Completion>> action)
         {

Fluid/Ast/CaptureStatement.cs

@@ -7,7 +7,7 @@
 
 namespace Fluid.Ast
 {
-    public class CaptureStatement : TagStatement
+    public sealed class CaptureStatement : TagStatement
     {
         public CaptureStatement(string identifier, List<Statement> statements): base(statements)
         {

Fluid/Ast/CaseStatement.cs

@@ -6,7 +6,7 @@
 
 namespace Fluid.Ast
 {
-    public class CaseStatement : TagStatement
+    public sealed class CaseStatement : TagStatement
     {
         private readonly WhenStatement[] _whenStatements;
 

Fluid/Ast/CommentStatement.cs

@@ -5,7 +5,7 @@
 
 namespace Fluid.Ast
 {
-    public class CommentStatement : Statement
+    public sealed class CommentStatement : Statement
     {
         private readonly TextSpan _text;
 

Fluid/Ast/ContinueStatement.cs

@@ -4,7 +4,7 @@
 
 namespace Fluid.Ast
 {
-    public class ContinueStatement : Statement
+    public sealed class ContinueStatement : Statement
     {
         public override ValueTask<Completion> WriteToAsync(TextWriter writer, TextEncoder encoder, TemplateContext context)
         {

Fluid/Ast/DecrementStatement.cs

@@ -5,7 +5,7 @@
 
 namespace Fluid.Ast
 {
-    public class DecrementStatement : Statement
+    public sealed class DecrementStatement : Statement
     {
         public DecrementStatement(string identifier)
         {

Fluid/Ast/ElseIfStatement.cs

@@ -5,7 +5,7 @@
 
 namespace Fluid.Ast
 {
-    public class ElseIfStatement : TagStatement
+    public sealed class ElseIfStatement : TagStatement
     {
         public ElseIfStatement(Expression condition, List<Statement> statements) : base(statements)
         {

Fluid/Ast/ElseStatement.cs

@@ -5,7 +5,7 @@
 
 namespace Fluid.Ast
 {
-    public class ElseStatement : TagStatement
+    public sealed class ElseStatement : TagStatement
     {
         public ElseStatement(List<Statement> statements) : base(statements)
         {

Fluid/Ast/FilterExpression.cs

@@ -4,7 +4,7 @@
 
 namespace Fluid.Ast
 {
-    public class FilterExpression : Expression
+    public sealed class FilterExpression : Expression
     {
         public FilterExpression(Expression input, string name, List<FilterArgument> parameters)
         {

Fluid/Ast/ForStatement.cs

@@ -8,7 +8,7 @@
 
 namespace Fluid.Ast
 {
-    public class ForStatement : TagStatement
+    public sealed class ForStatement : TagStatement
     {
         private bool _isContinueOffset;
         private string _continueOffsetLiteral;

Fluid/Ast/FunctionCallSegment.cs

@@ -5,7 +5,7 @@
 
 namespace Fluid.Ast
 {
-    public class FunctionCallSegment : MemberSegment
+    public sealed class FunctionCallSegment : MemberSegment
     {
         private static readonly FunctionArguments NonCacheableArguments = new();
         private volatile FunctionArguments _cachedArguments;

Fluid/Ast/IdentifierSegment.cs

@@ -5,7 +5,7 @@
 namespace Fluid.Ast
 {
     [DebuggerDisplay("{Identifier,nq}")]
-    public class IdentifierSegment : MemberSegment
+    public sealed class IdentifierSegment : MemberSegment
     {
         public IdentifierSegment(string identifier)
         {

Fluid/Ast/IfStatement.cs

@@ -6,7 +6,7 @@
 
 namespace Fluid.Ast
 {
-    public class IfStatement : TagStatement
+    public sealed class IfStatement : TagStatement
     {
         private readonly List<ElseIfStatement> _elseIfStatements;
 

Fluid/Ast/IncludeStatement.cs

@@ -10,7 +10,7 @@
 namespace Fluid.Ast
 {
 #pragma warning disable CA1001 // Types that own disposable fields should be disposable
-    public class IncludeStatement : Statement
+    public sealed class IncludeStatement : Statement
 #pragma warning restore CA1001
     {
         public const string ViewExtension = ".liquid";

Fluid/Ast/IncrementStatement.cs

@@ -5,7 +5,7 @@
 
 namespace Fluid.Ast
 {
-    public class IncrementStatement : Statement
+    public sealed class IncrementStatement : Statement
     {
         public const string Prefix = "$$incdec$$$";
         public IncrementStatement(string identifier)

Fluid/Ast/IndexerSegment.cs

@@ -3,7 +3,7 @@
 
 namespace Fluid.Ast
 {
-    public class IndexerSegment : MemberSegment
+    public sealed class IndexerSegment : MemberSegment
     {
         public IndexerSegment(Expression expression)
         {

Fluid/Ast/LiquidStatement.cs

@@ -5,7 +5,7 @@
 
 namespace Fluid.Ast
 {
-    public class LiquidStatement : TagStatement
+    public sealed class LiquidStatement : TagStatement
     {
         public LiquidStatement(List<Statement> statements) : base(statements)
         {

Fluid/Ast/MacroStatement.cs

@@ -7,7 +7,7 @@
 
 namespace Fluid.Ast
 {
-    public class MacroStatement : TagStatement
+    public sealed class MacroStatement : TagStatement
     {
         public MacroStatement(string identifier, IReadOnlyList<FunctionCallArgument> arguments, List<Statement> statements): base(statements)
         {

Fluid/Ast/MemberExpression.cs

@@ -5,7 +5,7 @@
 
 namespace Fluid.Ast
 {
-    public class MemberExpression : Expression
+    public sealed class MemberExpression : Expression
     {
         public MemberExpression(params MemberSegment[] segments)
         {

Fluid/Ast/NamedExpressionList.cs

@@ -2,7 +2,7 @@
 
 namespace Fluid.Ast
 {
-    public class NamedExpressionList
+    public sealed class NamedExpressionList
     {
         public static readonly NamedExpressionList Empty = new NamedExpressionList();
 

Fluid/Ast/OutputStatement.cs

@@ -6,7 +6,7 @@
 
 namespace Fluid.Ast
 {
-    public class OutputStatement : Statement
+    public sealed class OutputStatement : Statement
     {
         public OutputStatement(Expression expression)
         {

Fluid/Ast/RangeExpression.cs

@@ -5,7 +5,7 @@
 
 namespace Fluid.Ast
 {
-    public class RangeExpression : Expression
+    public sealed class RangeExpression : Expression
     {
         public RangeExpression(Expression from, Expression to)
         {

Fluid/Ast/RawStatement.cs

@@ -6,7 +6,7 @@
 
 namespace Fluid.Ast
 {
-    public class RawStatement : Statement
+    public sealed class RawStatement : Statement
     {
         private readonly TextSpan _text;
 

Fluid/Ast/RenderStatement.cs

@@ -13,7 +13,7 @@ namespace Fluid.Ast
     /// The render tag can only access immutable environments, which means the scope of the context that was passed to the main template, the options' scope, and the model.
     /// </summary>
 #pragma warning disable CA1001 // Types that own disposable fields should be disposable
-    public class RenderStatement : Statement
+    public sealed class RenderStatement : Statement
 #pragma warning restore CA1001
     {
         public const string ViewExtension = ".liquid";

Fluid/Ast/UnlessStatement.cs

@@ -5,7 +5,7 @@
 
 namespace Fluid.Ast
 {
-    public class UnlessStatement : TagStatement
+    public sealed class UnlessStatement : TagStatement
     {
         public UnlessStatement(
             Expression condition,

Fluid/Ast/WhenStatement.cs

@@ -6,7 +6,7 @@
 
 namespace Fluid.Ast
 {
-    public class WhenStatement : TagStatement
+    public sealed class WhenStatement : TagStatement
     {
         private readonly IReadOnlyList<Expression> _options;
 

Fluid/FilterArguments.cs

@@ -8,7 +8,7 @@ namespace Fluid
     /// Represents the list of arguments that are passed to a <see cref="FilterDelegate"/>
     /// when invoked.
     /// </summary>
-    public class FilterArguments
+    public sealed class FilterArguments
     {
         public static readonly FilterArguments Empty = new FilterArguments();
 

Fluid/FiltersCollection.cs

@@ -3,7 +3,7 @@
 
 namespace Fluid
 {
-    public class FilterCollection : IEnumerable<KeyValuePair<string, FilterDelegate>>
+    public sealed class FilterCollection : IEnumerable<KeyValuePair<string, FilterDelegate>>
     {
         private Dictionary<string, FilterDelegate> _filters;
 

Fluid/FunctionArguments.cs

@@ -7,7 +7,7 @@ namespace Fluid
     /// <summary>
     /// Represents the list of arguments of a function.
     /// </summary>
-    public class FunctionArguments
+    public sealed class FunctionArguments
     {
         public static readonly FunctionArguments Empty = new FunctionArguments();
 

Fluid/MemberNameStrategies.cs

@@ -4,7 +4,7 @@
 
 namespace Fluid
 {
-    public class MemberNameStrategies
+    public sealed class MemberNameStrategies
     {
         public static readonly MemberNameStrategy Default = RenameDefault;
         public static readonly MemberNameStrategy CamelCase = RenameCamelCase;

Fluid/NullMemberAccessor.cs

@@ -1,6 +1,6 @@
 namespace Fluid
 {
-    public class NullMemberAccessor : IMemberAccessor
+    public sealed class NullMemberAccessor : IMemberAccessor
     {
         public static readonly IMemberAccessor Instance = new NullMemberAccessor();
 

Fluid/ParseException.cs

@@ -2,7 +2,7 @@
 
 namespace Fluid
 {
-    public class ParseException : Exception
+    public sealed class ParseException : Exception
     {
         //
         // Summary:

Fluid/Parser/CompositeFluidTemplate.cs

@@ -5,7 +5,7 @@
 
 namespace Fluid.Parser
 {
-    public class CompositeFluidTemplate : IFluidTemplate
+    public sealed class CompositeFluidTemplate : IFluidTemplate
     {
         private readonly List<IFluidTemplate> _templates;
 

Fluid/Parser/FluidTemplate.cs

@@ -7,7 +7,7 @@
 
 namespace Fluid.Parser
 {
-    public class FluidTemplate : IFluidTemplate
+    public sealed class FluidTemplate : IFluidTemplate
     {
         private readonly List<Statement> _statements;
 

Fluid/Scope.cs

@@ -5,7 +5,7 @@
 
 namespace Fluid
 {
-    public class Scope
+    public sealed class Scope
     {
         private Dictionary<string, FluidValue> _properties;
         private readonly bool _forLoopScope;

Fluid/UnsafeMemberAccessStrategy.cs

@@ -2,7 +2,7 @@
 
 namespace Fluid
 {
-    public class UnsafeMemberAccessStrategy : DefaultMemberAccessStrategy
+    public sealed class UnsafeMemberAccessStrategy : DefaultMemberAccessStrategy
     {
         public static readonly UnsafeMemberAccessStrategy Instance = new UnsafeMemberAccessStrategy();