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LibCpp: Make C++ AST (mostly) const-correct

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I cheated and used const_cast to avoid dealing with the strange pattern
where we sometimes do a delayed reparenting of an AST node.
This commit is contained in:
Andreas Kling 2023-02-20 00:39:57 +01:00
parent eb4a69c377
commit 70d7fb6a03
6 changed files with 277 additions and 277 deletions
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76
Userland/Libraries/LibCpp/Parser.h
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@ -25,7 +25,7 @@ public:
NonnullRefPtr<TranslationUnit> parse();
bool eof() const;
RefPtr<ASTNode> node_at(Position) const;
RefPtr<ASTNode const> node_at(Position) const;
Optional<size_t> index_of_node_at(Position) const;
Optional<Token> token_at(Position) const;
Optional<size_t> index_of_token_at(Position) const;
@ -83,45 +83,45 @@ private:
bool match_destructor(StringView class_name);
bool match_using_namespace_declaration();
Optional<NonnullRefPtrVector<Parameter>> parse_parameter_list(ASTNode& parent);
Optional<NonnullRefPtrVector<Parameter const>> parse_parameter_list(ASTNode const& parent);
Optional<Token> consume_whitespace();
void consume_preprocessor();
NonnullRefPtr<Declaration> parse_declaration(ASTNode& parent, DeclarationType);
NonnullRefPtr<FunctionDeclaration> parse_function_declaration(ASTNode& parent);
NonnullRefPtr<FunctionDefinition> parse_function_definition(ASTNode& parent);
NonnullRefPtr<Statement> parse_statement(ASTNode& parent);
NonnullRefPtr<VariableDeclaration> parse_variable_declaration(ASTNode& parent, bool expect_semicolon = true);
NonnullRefPtr<Expression> parse_expression(ASTNode& parent);
NonnullRefPtr<Expression> parse_primary_expression(ASTNode& parent);
NonnullRefPtr<Expression> parse_secondary_expression(ASTNode& parent, NonnullRefPtr<Expression> lhs);
NonnullRefPtr<StringLiteral> parse_string_literal(ASTNode& parent);
NonnullRefPtr<ReturnStatement> parse_return_statement(ASTNode& parent);
NonnullRefPtr<EnumDeclaration> parse_enum_declaration(ASTNode& parent);
NonnullRefPtr<StructOrClassDeclaration> parse_class_declaration(ASTNode& parent);
NonnullRefPtr<Expression> parse_literal(ASTNode& parent);
NonnullRefPtr<UnaryExpression> parse_unary_expression(ASTNode& parent);
NonnullRefPtr<BooleanLiteral> parse_boolean_literal(ASTNode& parent);
NonnullRefPtr<Type> parse_type(ASTNode& parent);
NonnullRefPtr<BinaryExpression> parse_binary_expression(ASTNode& parent, NonnullRefPtr<Expression> lhs, BinaryOp);
NonnullRefPtr<AssignmentExpression> parse_assignment_expression(ASTNode& parent, NonnullRefPtr<Expression> lhs, AssignmentOp);
NonnullRefPtr<ForStatement> parse_for_statement(ASTNode& parent);
NonnullRefPtr<BlockStatement> parse_block_statement(ASTNode& parent);
NonnullRefPtr<Comment> parse_comment(ASTNode& parent);
NonnullRefPtr<IfStatement> parse_if_statement(ASTNode& parent);
NonnullRefPtr<NamespaceDeclaration> parse_namespace_declaration(ASTNode& parent, bool is_nested_namespace = false);
NonnullRefPtrVector<Declaration> parse_declarations_in_translation_unit(ASTNode& parent);
RefPtr<Declaration> parse_single_declaration_in_translation_unit(ASTNode& parent);
NonnullRefPtrVector<Type> parse_template_arguments(ASTNode& parent);
NonnullRefPtr<Name> parse_name(ASTNode& parent);
NonnullRefPtr<CppCastExpression> parse_cpp_cast_expression(ASTNode& parent);
NonnullRefPtr<SizeofExpression> parse_sizeof_expression(ASTNode& parent);
NonnullRefPtr<BracedInitList> parse_braced_init_list(ASTNode& parent);
NonnullRefPtr<CStyleCastExpression> parse_c_style_cast_expression(ASTNode& parent);
NonnullRefPtrVector<Declaration> parse_class_members(StructOrClassDeclaration& parent);
NonnullRefPtr<Constructor> parse_constructor(ASTNode& parent);
NonnullRefPtr<Destructor> parse_destructor(ASTNode& parent);
NonnullRefPtr<UsingNamespaceDeclaration> parse_using_namespace_declaration(ASTNode& parent);
NonnullRefPtr<Declaration const> parse_declaration(ASTNode const& parent, DeclarationType);
NonnullRefPtr<FunctionDeclaration const> parse_function_declaration(ASTNode const& parent);
NonnullRefPtr<FunctionDefinition const> parse_function_definition(ASTNode const& parent);
NonnullRefPtr<Statement const> parse_statement(ASTNode const& parent);
NonnullRefPtr<VariableDeclaration const> parse_variable_declaration(ASTNode const& parent, bool expect_semicolon = true);
NonnullRefPtr<Expression const> parse_expression(ASTNode const& parent);
NonnullRefPtr<Expression const> parse_primary_expression(ASTNode const& parent);
NonnullRefPtr<Expression const> parse_secondary_expression(ASTNode const& parent, NonnullRefPtr<Expression const> lhs);
NonnullRefPtr<StringLiteral const> parse_string_literal(ASTNode const& parent);
NonnullRefPtr<ReturnStatement const> parse_return_statement(ASTNode const& parent);
NonnullRefPtr<EnumDeclaration const> parse_enum_declaration(ASTNode const& parent);
NonnullRefPtr<StructOrClassDeclaration const> parse_class_declaration(ASTNode const& parent);
NonnullRefPtr<Expression const> parse_literal(ASTNode const& parent);
NonnullRefPtr<UnaryExpression const> parse_unary_expression(ASTNode const& parent);
NonnullRefPtr<BooleanLiteral const> parse_boolean_literal(ASTNode const& parent);
NonnullRefPtr<Type const> parse_type(ASTNode const& parent);
NonnullRefPtr<BinaryExpression const> parse_binary_expression(ASTNode const& parent, NonnullRefPtr<Expression const> lhs, BinaryOp);
NonnullRefPtr<AssignmentExpression const> parse_assignment_expression(ASTNode const& parent, NonnullRefPtr<Expression const> lhs, AssignmentOp);
NonnullRefPtr<ForStatement const> parse_for_statement(ASTNode const& parent);
NonnullRefPtr<BlockStatement const> parse_block_statement(ASTNode const& parent);
NonnullRefPtr<Comment const> parse_comment(ASTNode const& parent);
NonnullRefPtr<IfStatement const> parse_if_statement(ASTNode const& parent);
NonnullRefPtr<NamespaceDeclaration const> parse_namespace_declaration(ASTNode const& parent, bool is_nested_namespace = false);
NonnullRefPtrVector<Declaration const> parse_declarations_in_translation_unit(ASTNode const& parent);
RefPtr<Declaration const> parse_single_declaration_in_translation_unit(ASTNode const& parent);
NonnullRefPtrVector<Type const> parse_template_arguments(ASTNode const& parent);
NonnullRefPtr<Name const> parse_name(ASTNode const& parent);
NonnullRefPtr<CppCastExpression const> parse_cpp_cast_expression(ASTNode const& parent);
NonnullRefPtr<SizeofExpression const> parse_sizeof_expression(ASTNode const& parent);
NonnullRefPtr<BracedInitList const> parse_braced_init_list(ASTNode const& parent);
NonnullRefPtr<CStyleCastExpression const> parse_c_style_cast_expression(ASTNode const& parent);
NonnullRefPtrVector<Declaration const> parse_class_members(StructOrClassDeclaration& parent);
NonnullRefPtr<Constructor const> parse_constructor(ASTNode const& parent);
NonnullRefPtr<Destructor const> parse_destructor(ASTNode const& parent);
NonnullRefPtr<UsingNamespaceDeclaration const> parse_using_namespace_declaration(ASTNode const& parent);
bool match(Token::Type);
Token consume(Token::Type);
@ -145,7 +145,7 @@ private:
template<class T, class... Args>
NonnullRefPtr<T>
create_ast_node(ASTNode& parent, Position const& start, Optional<Position> end, Args&&... args)
create_ast_node(ASTNode const& parent, Position const& start, Optional<Position> end, Args&&... args)
{
auto node = adopt_ref(*new T(&parent, start, end, m_filename, forward<Args>(args)...));