Abstract base class for all AST nodes. More...

#include <ast.hpp>

Inheritance diagram for pascal::ASTNode:

[legend]

Public Member Functions
virtual	~ASTNode ()=default
virtual void	accept (ASTVisitor &visitor)=0
	Accept an ASTVisitor (double-dispatch).
virtual std::string	toString () const =0
	Return a human-readable description of this node.
virtual void	print (std::ostream &out, int indent=0) const
	Pretty-print this node to a stream with indentation.
void	setLineNumber (int line)
	Set the originating source line number.
int	getLineNumber () const
	Get the originating source line number.

Private Attributes
int	line_number = 0
	source line number where this node originated

Detailed Description

Abstract base class for all AST nodes.

Every concrete AST node inherits from this class, implementing the visitor pattern via accept() and providing a debug string via toString().

Definition at line 26 of file ast.hpp.

Constructor & Destructor Documentation

◆ ~ASTNode()

virtual pascal::ASTNode::~ASTNode ( )

virtualdefault

Member Function Documentation

◆ accept()

virtual void pascal::ASTNode::accept ( ASTVisitor & visitor )

pure virtual

Accept an ASTVisitor (double-dispatch).

Implemented in pascal::AddressOfNode, pascal::ArrayAccessNode, pascal::ArrayAssignmentNode, pascal::ArrayDeclarationNode, pascal::ArrayTypeDeclarationNode, pascal::ArrayTypeNode, pascal::AssignmentNode, pascal::BinaryOpNode, pascal::BlockNode, pascal::BooleanNode, pascal::BreakNode, pascal::CaseStmtNode, pascal::CompoundStmtNode, pascal::ConstDeclNode, pascal::ContinueNode, pascal::EmptyStmtNode, pascal::EnumTypeDeclNode, pascal::ExitNode, pascal::FieldAccessNode, pascal::ForStmtNode, pascal::FuncCallNode, pascal::FuncDeclNode, pascal::GotoStmtNode, pascal::IfStmtNode, pascal::LabelStmtNode, pascal::NilNode, pascal::NumberNode, pascal::ParameterNode, pascal::PointerDerefNode, pascal::PointerTypeNode, pascal::ProcCallNode, pascal::ProcDeclNode, pascal::ProgramNode, pascal::RecordDeclarationNode, pascal::RecordTypeNode, pascal::RepeatStmtNode, pascal::SetLiteralNode, pascal::SetTypeNode, pascal::SimpleTypeNode, pascal::StringNode, pascal::TypeAliasNode, pascal::TypeDeclNode, pascal::UnaryOpNode, pascal::UnitNode, pascal::VarDeclNode, pascal::VariableNode, pascal::WhileStmtNode, and pascal::WithStmtNode.

Referenced by pascal::CodeGenVisitor::eval(), and pascal::CodeGenVisitor::generate().

◆ getLineNumber()

int pascal::ASTNode::getLineNumber ( ) const

inline

Get the originating source line number.

Definition at line 40 of file ast.hpp.

References line_number.

◆ print()

void pascal::ASTNode::print	(	std::ostream &	out,
		int	indent = 0 ) const

virtual

Pretty-print this node to a stream with indentation.

Definition at line 17 of file ast.cpp.

References toString().

◆ setLineNumber()

void pascal::ASTNode::setLineNumber ( int line )

inline

Set the originating source line number.

Definition at line 38 of file ast.hpp.

References line_number.

◆ toString()

virtual std::string pascal::ASTNode::toString ( ) const

pure virtual

Return a human-readable description of this node.

Implemented in pascal::AddressOfNode, pascal::ArrayAccessNode, pascal::ArrayAssignmentNode, pascal::ArrayDeclarationNode, pascal::ArrayTypeDeclarationNode, pascal::ArrayTypeNode, pascal::AssignmentNode, pascal::BinaryOpNode, pascal::BlockNode, pascal::BooleanNode, pascal::BreakNode, pascal::CaseStmtNode, pascal::CompoundStmtNode, pascal::ConstDeclNode, pascal::ContinueNode, pascal::EmptyStmtNode, pascal::EnumTypeDeclNode, pascal::ExitNode, pascal::FieldAccessNode, pascal::ForStmtNode, pascal::FuncCallNode, pascal::FuncDeclNode, pascal::GotoStmtNode, pascal::IfStmtNode, pascal::LabelStmtNode, pascal::NilNode, pascal::NumberNode, pascal::ParameterNode, pascal::PointerDerefNode, pascal::PointerTypeNode, pascal::ProcCallNode, pascal::ProcDeclNode, pascal::ProgramNode, pascal::RecordDeclarationNode, pascal::RecordTypeNode, pascal::RepeatStmtNode, pascal::SetLiteralNode, pascal::SetTypeNode, pascal::SimpleTypeNode, pascal::StringNode, pascal::TypeAliasNode, pascal::TypeDeclNode, pascal::UnaryOpNode, pascal::UnitNode, pascal::VarDeclNode, pascal::VariableNode, pascal::WhileStmtNode, and pascal::WithStmtNode.

Referenced by print().

Member Data Documentation

◆ line_number

int pascal::ASTNode::line_number = 0

private

source line number where this node originated

Definition at line 27 of file ast.hpp.

Referenced by getLineNumber(), and setLineNumber().

The documentation for this class was generated from the following files:

src/frontend/include/ast.hpp
src/frontend/ast.cpp

Public Member Functions

Private Attributes