LRDE Tiger Compiler  1.34a $Id: 7fef12e1f5fa43449d667a0eec1d837c40fc1202 $
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros
ast::PrettyPrinter Class Reference

Visit an Ast and print the content of each node. More...

#include <pretty-printer.hh>

Inheritance diagram for ast::PrettyPrinter:
Collaboration diagram for ast::PrettyPrinter:

Public Types

typedef DefaultConstVisitor super_type

Public Member Functions

 PrettyPrinter (std::ostream &ostr)
 Build to print on ostr.
virtual void operator() (typename Const< Ast >::type &e)
 The entry point: visit e.
virtual void operator() (typename Const< ClassTy >::type &)=0
virtual void operator() (typename Const< MethodCallExp >::type &)=0
virtual void operator() (typename Const< MethodDec >::type &)=0
virtual void operator() (typename Const< ObjectExp >::type &)=0
template<class E >
void operator() (E *e)
 Helper to visit nodes manipulated via a pointer.
virtual void operator() (const SimpleVar &e)
virtual void operator() (const FieldVar &e)
virtual void operator() (const SubscriptVar &e)
virtual void operator() (const CastVar &e)
virtual void operator() (const CastExp &e)
Visit Variable related nodes.
virtual void operator() (typename Const< SimpleVar >::type &e) override
virtual void operator() (typename Const< FieldVar >::type &e) override
virtual void operator() (typename Const< SubscriptVar >::type &e) override
virtual void operator() (typename Const< CastVar >::type &e) override
Visit Expression related nodes.
virtual void operator() (typename Const< NilExp >::type &e) override
virtual void operator() (typename Const< IntExp >::type &e) override
virtual void operator() (typename Const< StringExp >::type &e) override
virtual void operator() (typename Const< CallExp >::type &e) override
virtual void operator() (typename Const< OpExp >::type &e) override
virtual void operator() (typename Const< RecordExp >::type &e) override
virtual void operator() (typename Const< SeqExp >::type &e) override
virtual void operator() (typename Const< AssignExp >::type &e) override
virtual void operator() (typename Const< IfExp >::type &e) override
virtual void operator() (typename Const< WhileExp >::type &e) override
virtual void operator() (typename Const< ForExp >::type &e) override
virtual void operator() (typename Const< BreakExp >::type &) override
virtual void operator() (typename Const< LetExp >::type &e) override
virtual void operator() (typename Const< ArrayExp >::type &e) override
virtual void operator() (typename Const< CastExp >::type &e) override
virtual void operator() (typename Const< FieldInit >::type &e) override
Visit Declaration related nodes.

Visiting declarations is simple, but there are many clauses. This is because in Tiger, the declarations are processed by chunks (a chunk of Function declarations, then Var or Type, then ...). So we have to explain

  • How to visit a list of chunks;
  • how to visit chunks of function, var, or type declarations;
  • how to visit a single function, var, or type declaration.
virtual void operator() (typename Const< DecsList >::type &e) override
 Visit a list of function, type and/or variables declarations.
virtual void operator() (typename Const< Decs >::type &e)
 Visit a Decs chunks.
virtual void operator() (typename Const< VarDecs >::type &e) override
 Visit Var declarations.
virtual void operator() (typename Const< VarDec >::type &e) override
virtual void operator() (typename Const< FunctionDec >::type &e) override
virtual void operator() (typename Const< TypeDec >::type &e) override
template<typename DecsType >
void decs_visit (typename Const< DecsType >::type &e)
 Visit a chunk (i.e., a list of Function, Var, and Type decs).
Visit Type related nodes.
virtual void operator() (typename Const< NameTy >::type &e) override
virtual void operator() (typename Const< RecordTy >::type &e) override
virtual void operator() (typename Const< ArrayTy >::type &e) override
Visit Field related nodes.
virtual void operator() (typename Const< Field >::type &e) override
Object-related visits.
virtual void operator() (typename Const< ClassTy >::type &e) override
virtual void operator() (typename Const< MethodDecs >::type &e) override
virtual void operator() (typename Const< MethodDec >::type &e) override
virtual void operator() (typename Const< MethodCallExp >::type &e) override
virtual void operator() (typename Const< ObjectExp >::type &e) override

Protected Member Functions

template<typename E >
void accept (E *e)

Protected Attributes

std::ostream & ostr_
 The stream to print on.

Private Member Functions

template<typename RecordClass >
void print_record (const RecordClass &e)

Detailed Description

Visit an Ast and print the content of each node.

Member Typedef Documentation

Constructor & Destructor Documentation

ast::PrettyPrinter::PrettyPrinter ( std::ostream &  ostr)

Build to print on ostr.

Member Function Documentation

template<template< typename > class Const>
template<typename E >
void ast::GenVisitor< Const >::accept ( E *  e)
protectedinherited

A convenient shortcut for recurring code like this:

if (e)
e->accept(*this);

However, the drawback of this approach is that it doesn't take care of the constness, and any const violation will be reported within the body of this method, not at its corresponding call site.

We cannot use the misc/select_const.hh approach here, since the compiler cannot resolve a function overloaded or specialized on an associated type of a template. E.g., writing accept like this:

template <typename E>
void accept(typename Const<E>::type* e);

won't work directly. Of course, one can help the compiler, providing it with E

accept<ast::NameTy>(e.result_get());

but this is painful.

template<template< typename > class Const>
template<typename DecsType >
void ast::GenDefaultVisitor< Const >::decs_visit ( typename Const< DecsType >::type &  e)
inlineinherited

Visit a chunk (i.e., a list of Function, Var, and Type decs).

It is exactly the same in the three cases, so the code is factored via a template method.

void ast::PrettyPrinter::operator() ( const SimpleVar e)
virtual
void ast::PrettyPrinter::operator() ( const FieldVar &  e)
virtual

References ostr_.

void ast::PrettyPrinter::operator() ( const SubscriptVar e)
virtual
void ast::PrettyPrinter::operator() ( const CastVar e)
virtual
void ast::PrettyPrinter::operator() ( const CastExp e)
virtual
template<template< typename > class Const>
virtual void ast::GenVisitor< Const >::operator() ( typename Const< ClassTy >::type &  )
pure virtualinherited
template<template< typename > class Const>
virtual void ast::GenVisitor< Const >::operator() ( typename Const< MethodCallExp >::type &  )
pure virtualinherited
template<template< typename > class Const>
virtual void ast::GenVisitor< Const >::operator() ( typename Const< MethodDec >::type &  )
pure virtualinherited
template<template< typename > class Const>
virtual void ast::GenVisitor< Const >::operator() ( typename Const< ObjectExp >::type &  )
pure virtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< Ast >::type &  e)
virtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< SimpleVar >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< FieldVar >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< SubscriptVar >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< CastVar >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
virtual void ast::GenObjectVisitor< Const >::operator() ( typename Const< ClassTy >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
virtual void ast::GenObjectVisitor< Const >::operator() ( typename Const< MethodDecs >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
virtual void ast::GenObjectVisitor< Const >::operator() ( typename Const< MethodDec >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
template<class E >
void ast::GenVisitor< Const >::operator() ( E *  e)
inherited

Helper to visit nodes manipulated via a pointer.

template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< NilExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
virtual void ast::GenObjectVisitor< Const >::operator() ( typename Const< MethodCallExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
virtual void ast::GenObjectVisitor< Const >::operator() ( typename Const< ObjectExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< IntExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< StringExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< CallExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< OpExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< RecordExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< SeqExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< AssignExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< IfExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< WhileExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< ForExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< BreakExp >::type &  )
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< LetExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< ArrayExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< CastExp >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< FieldInit >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< DecsList >::type &  e)
overridevirtualinherited

Visit a list of function, type and/or variables declarations.

Implements ast::GenVisitor< Const >.

References misc::for_each().

template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< Decs >::type &  e)
virtualinherited

Visit a Decs chunks.

template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< VarDecs >::type &  e)
overridevirtualinherited

Visit Var declarations.

Implements ast::GenVisitor< Const >.

template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< VarDec >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< FunctionDec >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< TypeDec >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< NameTy >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< RecordTy >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< ArrayTy >::type &  e)
overridevirtualinherited
template<template< typename > class Const>
void ast::GenDefaultVisitor< Const >::operator() ( typename Const< Field >::type &  e)
overridevirtualinherited
template<typename RecordClass >
void ast::PrettyPrinter::print_record ( const RecordClass &  e)
private

Member Data Documentation

std::ostream& ast::PrettyPrinter::ostr_
protected

The stream to print on.

Referenced by operator()().


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