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LibCpp: Change class_name to use StringView instead of char const*

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This helps make the overall codebase consistent. `class_name()` in
`Kernel` is always `StringView`, but not elsewhere.

Additionally, this results in the `strlen` (which needs to be done
when printing or other operations) always being computed at
compile-time.
This commit is contained in:
Lenny Maiorani 2022-03-16 18:26:30 -06:00 • committed by Linus Groh
parent 327e9a2187
commit 5b7a5b3c01
1 changed files with 44 additions and 43 deletions
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87
Userland/Libraries/LibCpp/AST.h
View file

@ -11,6 +11,7 @@
#include <AK/Optional.h> #include <AK/Optional.h>
#include <AK/RefCounted.h> #include <AK/RefCounted.h>
#include <AK/String.h> #include <AK/String.h>
#include <AK/StringView.h>
#include <AK/TypeCasts.h> #include <AK/TypeCasts.h>
#include <AK/Vector.h> #include <AK/Vector.h>
#include <LibCpp/Lexer.h> #include <LibCpp/Lexer.h>
@ -29,7 +30,7 @@ class Name;
class ASTNode : public RefCounted<ASTNode> { class ASTNode : public RefCounted<ASTNode> {
public: public:
virtual ~ASTNode() = default; virtual ~ASTNode() = default;
virtual const char* class_name() const = 0; virtual StringView class_name() const = 0;
virtual void dump(FILE* = stdout, size_t indent = 0) const; virtual void dump(FILE* = stdout, size_t indent = 0) const;
template<typename T> template<typename T>
@ -84,7 +85,7 @@ class TranslationUnit : public ASTNode {
public: public:
virtual ~TranslationUnit() override = default; virtual ~TranslationUnit() override = default;
virtual const char* class_name() const override { return "TranslationUnit"; } virtual StringView class_name() const override { return "TranslationUnit"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual NonnullRefPtrVector<Declaration> declarations() const override { return m_declarations; } virtual NonnullRefPtrVector<Declaration> declarations() const override { return m_declarations; }
@ -102,7 +103,7 @@ private:
class Statement : public ASTNode { class Statement : public ASTNode {
public: public:
virtual ~Statement() override = default; virtual ~Statement() override = default;
virtual const char* class_name() const override { return "Statement"; } virtual StringView class_name() const override { return "Statement"sv; }
virtual NonnullRefPtrVector<Declaration> declarations() const override; virtual NonnullRefPtrVector<Declaration> declarations() const override;
@ -144,7 +145,7 @@ class InvalidDeclaration : public Declaration {
public: public:
virtual ~InvalidDeclaration() override = default; virtual ~InvalidDeclaration() override = default;
virtual const char* class_name() const override { return "InvalidDeclaration"; } virtual StringView class_name() const override { return "InvalidDeclaration"sv; }
InvalidDeclaration(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename) InvalidDeclaration(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename)
: Declaration(parent, start, end, filename) : Declaration(parent, start, end, filename)
{ {
@ -154,7 +155,7 @@ public:
class FunctionDeclaration : public Declaration { class FunctionDeclaration : public Declaration {
public: public:
virtual ~FunctionDeclaration() override = default; virtual ~FunctionDeclaration() override = default;
virtual const char* class_name() const override { return "FunctionDeclaration"; } virtual StringView class_name() const override { return "FunctionDeclaration"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual bool is_function() const override { return true; } virtual bool is_function() const override { return true; }
virtual bool is_constructor() const { return false; } virtual bool is_constructor() const { return false; }
@ -203,7 +204,7 @@ protected:
class Parameter : public VariableOrParameterDeclaration { class Parameter : public VariableOrParameterDeclaration {
public: public:
virtual ~Parameter() override = default; virtual ~Parameter() override = default;
virtual const char* class_name() const override { return "Parameter"; } virtual StringView class_name() const override { return "Parameter"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual bool is_parameter() const override { return true; } virtual bool is_parameter() const override { return true; }
@ -223,7 +224,7 @@ private:
class Type : public ASTNode { class Type : public ASTNode {
public: public:
virtual ~Type() override = default; virtual ~Type() override = default;
virtual const char* class_name() const override { return "Type"; } virtual StringView class_name() const override { return "Type"sv; }
virtual bool is_type() const override { return true; } virtual bool is_type() const override { return true; }
virtual bool is_templatized() const { return false; } virtual bool is_templatized() const { return false; }
virtual bool is_named_type() const { return false; } virtual bool is_named_type() const { return false; }
@ -249,7 +250,7 @@ private:
class NamedType : public Type { class NamedType : public Type {
public: public:
virtual ~NamedType() override = default; virtual ~NamedType() override = default;
virtual const char* class_name() const override { return "NamedType"; } virtual StringView class_name() const override { return "NamedType"sv; }
virtual String to_string() const override; virtual String to_string() const override;
virtual bool is_named_type() const override { return true; } virtual bool is_named_type() const override { return true; }
@ -268,7 +269,7 @@ private:
class Pointer : public Type { class Pointer : public Type {
public: public:
virtual ~Pointer() override = default; virtual ~Pointer() override = default;
virtual const char* class_name() const override { return "Pointer"; } virtual StringView class_name() const override { return "Pointer"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual String to_string() const override; virtual String to_string() const override;
@ -287,7 +288,7 @@ private:
class Reference : public Type { class Reference : public Type {
public: public:
virtual ~Reference() override = default; virtual ~Reference() override = default;
virtual const char* class_name() const override { return "Reference"; } virtual StringView class_name() const override { return "Reference"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual String to_string() const override; virtual String to_string() const override;
@ -314,7 +315,7 @@ private:
class FunctionType : public Type { class FunctionType : public Type {
public: public:
virtual ~FunctionType() override = default; virtual ~FunctionType() override = default;
virtual const char* class_name() const override { return "FunctionType"; } virtual StringView class_name() const override { return "FunctionType"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual String to_string() const override; virtual String to_string() const override;
@ -334,7 +335,7 @@ private:
class FunctionDefinition : public ASTNode { class FunctionDefinition : public ASTNode {
public: public:
virtual ~FunctionDefinition() override = default; virtual ~FunctionDefinition() override = default;
virtual const char* class_name() const override { return "FunctionDefinition"; } virtual StringView class_name() const override { return "FunctionDefinition"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
FunctionDefinition(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename) FunctionDefinition(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename)
@ -353,7 +354,7 @@ private:
class InvalidStatement : public Statement { class InvalidStatement : public Statement {
public: public:
virtual ~InvalidStatement() override = default; virtual ~InvalidStatement() override = default;
virtual const char* class_name() const override { return "InvalidStatement"; } virtual StringView class_name() const override { return "InvalidStatement"sv; }
InvalidStatement(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename) InvalidStatement(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename)
: Statement(parent, start, end, filename) : Statement(parent, start, end, filename)
{ {
@ -363,7 +364,7 @@ public:
class Expression : public Statement { class Expression : public Statement {
public: public:
virtual ~Expression() override = default; virtual ~Expression() override = default;
virtual const char* class_name() const override { return "Expression"; } virtual StringView class_name() const override { return "Expression"sv; }
protected: protected:
Expression(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename) Expression(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename)
@ -375,7 +376,7 @@ protected:
class InvalidExpression : public Expression { class InvalidExpression : public Expression {
public: public:
virtual ~InvalidExpression() override = default; virtual ~InvalidExpression() override = default;
virtual const char* class_name() const override { return "InvalidExpression"; } virtual StringView class_name() const override { return "InvalidExpression"sv; }
InvalidExpression(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename) InvalidExpression(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename)
: Expression(parent, start, end, filename) : Expression(parent, start, end, filename)
{ {
@ -385,7 +386,7 @@ public:
class VariableDeclaration : public VariableOrParameterDeclaration { class VariableDeclaration : public VariableOrParameterDeclaration {
public: public:
virtual ~VariableDeclaration() override = default; virtual ~VariableDeclaration() override = default;
virtual const char* class_name() const override { return "VariableDeclaration"; } virtual StringView class_name() const override { return "VariableDeclaration"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
VariableDeclaration(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename) VariableDeclaration(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename)
@ -405,7 +406,7 @@ private:
class Identifier : public Expression { class Identifier : public Expression {
public: public:
virtual ~Identifier() override = default; virtual ~Identifier() override = default;
virtual const char* class_name() const override { return "Identifier"; } virtual StringView class_name() const override { return "Identifier"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
Identifier(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename, StringView name) Identifier(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename, StringView name)
@ -430,7 +431,7 @@ private:
class Name : public Expression { class Name : public Expression {
public: public:
virtual ~Name() override = default; virtual ~Name() override = default;
virtual const char* class_name() const override { return "Name"; } virtual StringView class_name() const override { return "Name"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual bool is_name() const override { return true; } virtual bool is_name() const override { return true; }
virtual bool is_templatized() const { return false; } virtual bool is_templatized() const { return false; }
@ -456,7 +457,7 @@ private:
class TemplatizedName : public Name { class TemplatizedName : public Name {
public: public:
virtual ~TemplatizedName() override = default; virtual ~TemplatizedName() override = default;
virtual const char* class_name() const override { return "TemplatizedName"; } virtual StringView class_name() const override { return "TemplatizedName"sv; }
virtual bool is_templatized() const override { return true; } virtual bool is_templatized() const override { return true; }
virtual StringView full_name() const override; virtual StringView full_name() const override;
@ -475,7 +476,7 @@ private:
class NumericLiteral : public Expression { class NumericLiteral : public Expression {
public: public:
virtual ~NumericLiteral() override = default; virtual ~NumericLiteral() override = default;
virtual const char* class_name() const override { return "NumericLiteral"; } virtual StringView class_name() const override { return "NumericLiteral"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
NumericLiteral(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename, StringView value) NumericLiteral(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename, StringView value)
@ -491,7 +492,7 @@ private:
class NullPointerLiteral : public Expression { class NullPointerLiteral : public Expression {
public: public:
virtual ~NullPointerLiteral() override = default; virtual ~NullPointerLiteral() override = default;
virtual const char* class_name() const override { return "NullPointerLiteral"; } virtual StringView class_name() const override { return "NullPointerLiteral"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
NullPointerLiteral(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename) NullPointerLiteral(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename)
@ -503,7 +504,7 @@ public:
class BooleanLiteral : public Expression { class BooleanLiteral : public Expression {
public: public:
virtual ~BooleanLiteral() override = default; virtual ~BooleanLiteral() override = default;
virtual const char* class_name() const override { return "BooleanLiteral"; } virtual StringView class_name() const override { return "BooleanLiteral"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
BooleanLiteral(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename, bool value) BooleanLiteral(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename, bool value)
@ -546,7 +547,7 @@ public:
} }
virtual ~BinaryExpression() override = default; virtual ~BinaryExpression() override = default;
virtual const char* class_name() const override { return "BinaryExpression"; } virtual StringView class_name() const override { return "BinaryExpression"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
BinaryOp op() const { return m_op; } BinaryOp op() const { return m_op; }
@ -576,7 +577,7 @@ public:
} }
virtual ~AssignmentExpression() override = default; virtual ~AssignmentExpression() override = default;
virtual const char* class_name() const override { return "AssignmentExpression"; } virtual StringView class_name() const override { return "AssignmentExpression"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
AssignmentOp op() const { return m_op; } AssignmentOp op() const { return m_op; }
@ -600,7 +601,7 @@ public:
} }
virtual ~FunctionCall() override = default; virtual ~FunctionCall() override = default;
virtual const char* class_name() const override { return "FunctionCall"; } virtual StringView class_name() const override { return "FunctionCall"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual bool is_function_call() const override { return true; } virtual bool is_function_call() const override { return true; }
@ -623,7 +624,7 @@ public:
} }
~StringLiteral() override = default; ~StringLiteral() override = default;
virtual const char* class_name() const override { return "StringLiteral"; } virtual StringView class_name() const override { return "StringLiteral"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
String const& value() const { return m_value; } String const& value() const { return m_value; }
@ -636,7 +637,7 @@ private:
class ReturnStatement : public Statement { class ReturnStatement : public Statement {
public: public:
virtual ~ReturnStatement() override = default; virtual ~ReturnStatement() override = default;
virtual const char* class_name() const override { return "ReturnStatement"; } virtual StringView class_name() const override { return "ReturnStatement"sv; }
ReturnStatement(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename) ReturnStatement(ASTNode* parent, Optional<Position> start, Optional<Position> end, const String& filename)
: Statement(parent, start, end, filename) : Statement(parent, start, end, filename)
@ -654,7 +655,7 @@ private:
class EnumDeclaration : public Declaration { class EnumDeclaration : public Declaration {
public: public:
virtual ~EnumDeclaration() override = default; virtual ~EnumDeclaration() override = default;
virtual const char* class_name() const override { return "EnumDeclaration"; } virtual StringView class_name() const override { return "EnumDeclaration"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual bool is_enum() const override { return true; } virtual bool is_enum() const override { return true; }
@ -683,7 +684,7 @@ private:
class StructOrClassDeclaration : public Declaration { class StructOrClassDeclaration : public Declaration {
public: public:
virtual ~StructOrClassDeclaration() override = default; virtual ~StructOrClassDeclaration() override = default;
virtual const char* class_name() const override { return "StructOrClassDeclaration"; } virtual StringView class_name() const override { return "StructOrClassDeclaration"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual bool is_struct_or_class() const override { return true; } virtual bool is_struct_or_class() const override { return true; }
virtual bool is_struct() const override { return m_type == Type::Struct; } virtual bool is_struct() const override { return m_type == Type::Struct; }
@ -727,7 +728,7 @@ public:
} }
virtual ~UnaryExpression() override = default; virtual ~UnaryExpression() override = default;
virtual const char* class_name() const override { return "UnaryExpression"; } virtual StringView class_name() const override { return "UnaryExpression"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
void set_op(UnaryOp op) { m_op = op; } void set_op(UnaryOp op) { m_op = op; }
@ -746,7 +747,7 @@ public:
} }
virtual ~MemberExpression() override = default; virtual ~MemberExpression() override = default;
virtual const char* class_name() const override { return "MemberExpression"; } virtual StringView class_name() const override { return "MemberExpression"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual bool is_member_expression() const override { return true; } virtual bool is_member_expression() const override { return true; }
@ -768,7 +769,7 @@ public:
} }
virtual ~ForStatement() override = default; virtual ~ForStatement() override = default;
virtual const char* class_name() const override { return "ForStatement"; } virtual StringView class_name() const override { return "ForStatement"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual NonnullRefPtrVector<Declaration> declarations() const override; virtual NonnullRefPtrVector<Declaration> declarations() const override;
@ -794,7 +795,7 @@ public:
} }
virtual ~BlockStatement() override = default; virtual ~BlockStatement() override = default;
virtual const char* class_name() const override { return "BlockStatement"; } virtual StringView class_name() const override { return "BlockStatement"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual NonnullRefPtrVector<Declaration> declarations() const override; virtual NonnullRefPtrVector<Declaration> declarations() const override;
@ -813,7 +814,7 @@ public:
} }
virtual ~Comment() override = default; virtual ~Comment() override = default;
virtual const char* class_name() const override { return "Comment"; } virtual StringView class_name() const override { return "Comment"sv; }
}; };
class IfStatement : public Statement { class IfStatement : public Statement {
@ -824,7 +825,7 @@ public:
} }
virtual ~IfStatement() override = default; virtual ~IfStatement() override = default;
virtual const char* class_name() const override { return "IfStatement"; } virtual StringView class_name() const override { return "IfStatement"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual NonnullRefPtrVector<Declaration> declarations() const override; virtual NonnullRefPtrVector<Declaration> declarations() const override;
@ -844,7 +845,7 @@ private:
class NamespaceDeclaration : public Declaration { class NamespaceDeclaration : public Declaration {
public: public:
virtual ~NamespaceDeclaration() override = default; virtual ~NamespaceDeclaration() override = default;
virtual const char* class_name() const override { return "NamespaceDeclaration"; } virtual StringView class_name() const override { return "NamespaceDeclaration"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual bool is_namespace() const override { return true; } virtual bool is_namespace() const override { return true; }
@ -868,7 +869,7 @@ public:
} }
virtual ~CppCastExpression() override = default; virtual ~CppCastExpression() override = default;
virtual const char* class_name() const override { return "CppCastExpression"; } virtual StringView class_name() const override { return "CppCastExpression"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
void set_cast_type(StringView cast_type) { m_cast_type = move(cast_type); } void set_cast_type(StringView cast_type) { m_cast_type = move(cast_type); }
@ -889,7 +890,7 @@ public:
} }
virtual ~CStyleCastExpression() override = default; virtual ~CStyleCastExpression() override = default;
virtual const char* class_name() const override { return "CStyleCastExpression"; } virtual StringView class_name() const override { return "CStyleCastExpression"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
void set_type(NonnullRefPtr<Type>&& type) { m_type = move(type); } void set_type(NonnullRefPtr<Type>&& type) { m_type = move(type); }
@ -908,7 +909,7 @@ public:
} }
virtual ~SizeofExpression() override = default; virtual ~SizeofExpression() override = default;
virtual const char* class_name() const override { return "SizeofExpression"; } virtual StringView class_name() const override { return "SizeofExpression"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
void set_type(RefPtr<Type>&& type) { m_type = move(type); } void set_type(RefPtr<Type>&& type) { m_type = move(type); }
@ -925,7 +926,7 @@ public:
} }
virtual ~BracedInitList() override = default; virtual ~BracedInitList() override = default;
virtual const char* class_name() const override { return "BracedInitList"; } virtual StringView class_name() const override { return "BracedInitList"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
void add_expression(NonnullRefPtr<Expression>&& exp) { m_expressions.append(move(exp)); } void add_expression(NonnullRefPtr<Expression>&& exp) { m_expressions.append(move(exp)); }
@ -941,14 +942,14 @@ public:
{ {
} }
virtual bool is_dummy_node() const override { return true; } virtual bool is_dummy_node() const override { return true; }
virtual const char* class_name() const override { return "DummyAstNode"; } virtual StringView class_name() const override { return "DummyAstNode"sv; }
virtual void dump(FILE* = stdout, size_t = 0) const override { } virtual void dump(FILE* = stdout, size_t = 0) const override { }
}; };
class Constructor : public FunctionDeclaration { class Constructor : public FunctionDeclaration {
public: public:
virtual ~Constructor() override = default; virtual ~Constructor() override = default;
virtual const char* class_name() const override { return "Constructor"; } virtual StringView class_name() const override { return "Constructor"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual bool is_constructor() const override { return true; } virtual bool is_constructor() const override { return true; }
@ -961,7 +962,7 @@ public:
class Destructor : public FunctionDeclaration { class Destructor : public FunctionDeclaration {
public: public:
virtual ~Destructor() override = default; virtual ~Destructor() override = default;
virtual const char* class_name() const override { return "Destructor"; } virtual StringView class_name() const override { return "Destructor"sv; }
virtual void dump(FILE* = stdout, size_t indent = 0) const override; virtual void dump(FILE* = stdout, size_t indent = 0) const override;
virtual bool is_destructor() const override { return true; } virtual bool is_destructor() const override { return true; }