Add generic AstVisitor

src/Esprima/Ast/AccessorProperty.cs

@@ -28,7 +28,7 @@ public AccessorProperty(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullableAt2(Decorators, Key, Value);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitAccessorProperty(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitAccessorProperty(this);
 
     public AccessorProperty UpdateWith(Expression key, Expression? value, in NodeList<Decorator> decorators)
     {

src/Esprima/Ast/ArrayExpression.cs

@@ -19,7 +19,7 @@ public ArrayExpression(in NodeList<Expression?> elements) : base(Nodes.ArrayExpr
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullable(Elements);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitArrayExpression(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitArrayExpression(this);
 
     public ArrayExpression UpdateWith(in NodeList<Expression?> elements)
     {

src/Esprima/Ast/ArrayPattern.cs

@@ -19,7 +19,7 @@ public ArrayPattern(in NodeList<Node?> elements) : base(Nodes.ArrayPattern)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullable(Elements);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitArrayPattern(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitArrayPattern(this);
 
     public ArrayPattern UpdateWith(in NodeList<Node?> elements)
     {

src/Esprima/Ast/ArrowFunctionExpression.cs

@@ -38,7 +38,7 @@ public ArrowFunctionExpression(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Params, Body);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitArrowFunctionExpression(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitArrowFunctionExpression(this);
 
     public ArrowFunctionExpression UpdateWith(in NodeList<Node> parameters, StatementListItem body)
     {

src/Esprima/Ast/ArrowParameterPlaceHolder.cs

@@ -26,5 +26,5 @@ public ArrowParameterPlaceHolder(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Params);
 
-    protected internal override object? Accept(AstVisitor visitor) => throw new NotSupportedException();
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => throw new NotSupportedException();
 }

src/Esprima/Ast/AssignmentExpression.cs

@@ -102,7 +102,7 @@ public static string GetAssignmentOperatorToken(AssignmentOperator op)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Left, Right);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitAssignmentExpression(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitAssignmentExpression(this);
 
     public AssignmentExpression UpdateWith(Node left, Expression right)
     {

src/Esprima/Ast/AssignmentPattern.cs

@@ -21,7 +21,7 @@ public AssignmentPattern(Node left, Expression right) : base(Nodes.AssignmentPat
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Left, Right);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitAssignmentPattern(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitAssignmentPattern(this);
 
     public AssignmentPattern UpdateWith(Node left, Expression right)
     {

src/Esprima/Ast/AwaitExpression.cs

@@ -14,7 +14,7 @@ public AwaitExpression(Expression argument) : base(Nodes.AwaitExpression)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Argument);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitAwaitExpression(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitAwaitExpression(this);
 
     public AwaitExpression UpdateWith(Expression argument)
     {

src/Esprima/Ast/BinaryExpression.cs

@@ -125,7 +125,7 @@ public static string GetBinaryOperatorToken(BinaryOperator op)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Left, Right);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitBinaryExpression(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitBinaryExpression(this);
 
     protected virtual BinaryExpression Rewrite(Expression left, Expression right)
     {

src/Esprima/Ast/BlockStatement.cs

@@ -16,7 +16,7 @@ public BlockStatement(in NodeList<Statement> body) : base(Nodes.BlockStatement)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Body);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitBlockStatement(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitBlockStatement(this);
 
     public BlockStatement UpdateWith(in NodeList<Statement> body)
     {

src/Esprima/Ast/BreakStatement.cs

@@ -14,7 +14,7 @@ public BreakStatement(Identifier? label) : base(Nodes.BreakStatement)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullable(Label);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitBreakStatement(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitBreakStatement(this);
 
     public BreakStatement UpdateWith(Identifier? label)
     {

src/Esprima/Ast/CallExpression.cs

@@ -23,7 +23,7 @@ public CallExpression(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Callee, Arguments);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitCallExpression(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitCallExpression(this);
 
     public CallExpression UpdateWith(Expression callee, in NodeList<Expression> arguments)
     {

src/Esprima/Ast/CatchClause.cs

@@ -20,7 +20,7 @@ public CatchClause(Node? param, BlockStatement body) :
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullableAt0(Param, Body);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitCatchClause(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitCatchClause(this);
 
     public CatchClause UpdateWith(Node? param, BlockStatement body)
     {

src/Esprima/Ast/ChainExpression.cs

@@ -17,7 +17,7 @@ public ChainExpression(Expression expression) : base(Nodes.ChainExpression)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Expression);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitChainExpression(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitChainExpression(this);
 
     public ChainExpression UpdateWith(Expression expression)
     {

src/Esprima/Ast/ClassBody.cs

@@ -19,7 +19,7 @@ public ClassBody(in NodeList<ClassElement> body) : base(Nodes.ClassBody)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Body);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitClassBody(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitClassBody(this);
 
     public ClassBody UpdateWith(in NodeList<ClassElement> body)
     {

src/Esprima/Ast/ClassDeclaration.cs

@@ -23,7 +23,7 @@ public ClassDeclaration(Identifier? id, Expression? superClass, ClassBody body,
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullableAt1_2(Decorators, Id, SuperClass, Body);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitClassDeclaration(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitClassDeclaration(this);
 
     public ClassDeclaration UpdateWith(Identifier? id, Expression? superClass, ClassBody body, in NodeList<Decorator> decorators)
     {

src/Esprima/Ast/ClassExpression.cs

@@ -26,7 +26,7 @@ public ClassExpression(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullableAt1_2(Decorators, Id, SuperClass, Body);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitClassExpression(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitClassExpression(this);
 
     public ClassExpression UpdateWith(Identifier? id, Expression? superClass, ClassBody body, in NodeList<Decorator> decorators)
     {

src/Esprima/Ast/ConditionalExpression.cs

@@ -21,7 +21,7 @@ public ConditionalExpression(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Test, Consequent, Alternate);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitConditionalExpression(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitConditionalExpression(this);
 
     public ConditionalExpression UpdateWith(Expression test, Expression consequent, Expression alternate)
     {

src/Esprima/Ast/ContinueStatement.cs

@@ -14,7 +14,7 @@ public ContinueStatement(Identifier? label) : base(Nodes.ContinueStatement)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullable(Label);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitContinueStatement(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitContinueStatement(this);
 
     public ContinueStatement UpdateWith(Identifier? label)
     {

src/Esprima/Ast/DebuggerStatement.cs

@@ -8,5 +8,5 @@ public DebuggerStatement() : base(Nodes.DebuggerStatement) { }
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => null;
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitDebuggerStatement(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitDebuggerStatement(this);
 }

src/Esprima/Ast/Decorator.cs

@@ -14,7 +14,7 @@ public Decorator(Expression expression) : base(Nodes.Decorator)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Expression);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitDecorator(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitDecorator(this);
 
     public Decorator UpdateWith(Expression expression)
     {

src/Esprima/Ast/DoWhileStatement.cs

@@ -16,7 +16,7 @@ public DoWhileStatement(Statement body, Expression test) : base(Nodes.DoWhileSta
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Body, Test);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitDoWhileStatement(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitDoWhileStatement(this);
 
     public DoWhileStatement UpdateWith(Statement body, Expression test)
     {

src/Esprima/Ast/EmptyStatement.cs

@@ -10,5 +10,5 @@ public EmptyStatement() : base(Nodes.EmptyStatement)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => null;
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitEmptyStatement(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitEmptyStatement(this);
 }

src/Esprima/Ast/ExportAllDeclaration.cs

@@ -27,7 +27,7 @@ public ExportAllDeclaration(Literal source, Expression? exported, in NodeList<Im
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullableAt0(Exported, Source, Assertions);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitExportAllDeclaration(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitExportAllDeclaration(this);
 
     public ExportAllDeclaration UpdateWith(Expression? exported, Literal source, in NodeList<ImportAttribute> assertions)
     {

src/Esprima/Ast/ExportDefaultDeclaration.cs

@@ -17,7 +17,7 @@ public ExportDefaultDeclaration(StatementListItem declaration) : base(Nodes.Expo
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Declaration);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitExportDefaultDeclaration(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitExportDefaultDeclaration(this);
 
     public ExportDefaultDeclaration UpdateWith(StatementListItem declaration)
     {

src/Esprima/Ast/ExportNamedDeclaration.cs

@@ -31,7 +31,7 @@ public ExportNamedDeclaration(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullableAt0_2(Declaration, Specifiers, Source, Assertions);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitExportNamedDeclaration(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitExportNamedDeclaration(this);
 
     public ExportNamedDeclaration UpdateWith(Declaration? declaration, in NodeList<ExportSpecifier> specifiers, Literal? source, in NodeList<ImportAttribute> assertions)
     {

src/Esprima/Ast/ExportSpecifier.cs

@@ -22,7 +22,7 @@ public ExportSpecifier(Expression local, Expression exported) : base(Nodes.Expor
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextExportSpecifier(Local, Exported);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitExportSpecifier(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitExportSpecifier(this);
 
     public ExportSpecifier UpdateWith(Expression local, Expression exported)
     {

src/Esprima/Ast/ExpressionStatement.cs

@@ -14,7 +14,7 @@ public ExpressionStatement(Expression expression) : base(Nodes.ExpressionStateme
 
     internal sealed override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Expression);
 
-    protected internal sealed override object? Accept(AstVisitor visitor) => visitor.VisitExpressionStatement(this);
+    protected internal sealed override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitExpressionStatement(this);
 
     protected virtual ExpressionStatement Rewrite(Expression expression)
     {

src/Esprima/Ast/ForInStatement.cs

@@ -24,7 +24,7 @@ public ForInStatement(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Left, Right, Body);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitForInStatement(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitForInStatement(this);
 
     public ForInStatement UpdateWith(Node left, Expression right, Statement body)
     {

src/Esprima/Ast/ForOfStatement.cs

@@ -27,7 +27,7 @@ public ForOfStatement(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Left, Right, Body);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitForOfStatement(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitForOfStatement(this);
 
     public ForOfStatement UpdateWith(Node left, Expression right, Statement body)
     {

src/Esprima/Ast/ForStatement.cs

@@ -28,7 +28,7 @@ public ForStatement(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullableAt0_1_2(Init, Test, Update, Body);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitForStatement(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitForStatement(this);
 
     public ForStatement UpdateWith(StatementListItem? init, Expression? test, Expression? update, Statement body)
     {

src/Esprima/Ast/FunctionDeclaration.cs

@@ -40,7 +40,7 @@ public FunctionDeclaration(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullableAt0(Id, Params, Body);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitFunctionDeclaration(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitFunctionDeclaration(this);
 
     public FunctionDeclaration UpdateWith(Identifier? id, in NodeList<Node> parameters, BlockStatement body)
     {

src/Esprima/Ast/FunctionExpression.cs

@@ -40,7 +40,7 @@ public FunctionExpression(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullableAt0(Id, Params, Body);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitFunctionExpression(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitFunctionExpression(this);
 
     public FunctionExpression UpdateWith(Identifier? id, in NodeList<Node> parameters, BlockStatement body)
     {

src/Esprima/Ast/Identifier.cs

@@ -14,5 +14,5 @@ public Identifier(string name) : base(Nodes.Identifier)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => null;
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitIdentifier(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitIdentifier(this);
 }

src/Esprima/Ast/IfStatement.cs

@@ -22,7 +22,7 @@ public IfStatement(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullableAt2(Test, Consequent, Alternate);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitIfStatement(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitIfStatement(this);
 
     public IfStatement UpdateWith(Expression test, Statement consequent, Statement? alternate)
     {

src/Esprima/Ast/Import.cs

@@ -20,7 +20,7 @@ public Import(Expression source, Expression? attributes) : base(Nodes.Import)
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNextNullableAt1(Source, Attributes);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitImport(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitImport(this);
 
     public Import UpdateWith(Expression source, Expression? attributes)
     {

src/Esprima/Ast/ImportAttribute.cs

@@ -19,7 +19,7 @@ public ImportAttribute(Expression key, Literal value) : base(Nodes.ImportAttribu
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Key, Value);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitImportAttribute(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitImportAttribute(this);
 
     public ImportAttribute UpdateWith(Expression key, Literal value)
     {

src/Esprima/Ast/ImportDeclaration.cs

@@ -25,7 +25,7 @@ public ImportDeclaration(
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Specifiers, Source, Assertions);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitImportDeclaration(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitImportDeclaration(this);
 
     public ImportDeclaration UpdateWith(in NodeList<ImportDeclarationSpecifier> specifiers, Literal source, in NodeList<ImportAttribute> assertions)
     {

src/Esprima/Ast/ImportDefaultSpecifier.cs

@@ -10,7 +10,7 @@ public ImportDefaultSpecifier(Identifier local) : base(local, Nodes.ImportDefaul
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Local);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitImportDefaultSpecifier(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitImportDefaultSpecifier(this);
 
     public ImportDefaultSpecifier UpdateWith(Identifier local)
     {

src/Esprima/Ast/ImportNamespaceSpecifier.cs

@@ -10,7 +10,7 @@ public ImportNamespaceSpecifier(Identifier local) : base(local, Nodes.ImportName
 
     internal override Node? NextChildNode(ref ChildNodes.Enumerator enumerator) => enumerator.MoveNext(Local);
 
-    protected internal override object? Accept(AstVisitor visitor) => visitor.VisitImportNamespaceSpecifier(this);
+    protected internal override T Accept<T>(AstVisitor<T> visitor) => visitor.VisitImportNamespaceSpecifier(this);
 
     public ImportNamespaceSpecifier UpdateWith(Identifier local)
     {