JClass.cc

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#include <iostream>
#include <iomanip>
#include <vector>

#include "JLang/JClass.hh"

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"


namespace {

  struct __A__ {};

  /**
   * Print class parameters.
   *
   * \param  out         output stream
   * \param  name        name of class
   */
  template<class T>
  inline void print(std::ostream& out, const char* name)
  {
    using namespace std;
    using namespace JPP;

    out << setw(36) << left << name;
    out << setw(4) << '.' << setw(8) << left << JClass<T>::is_primitive;
    out << setw(4) << '.' << setw(8) << left << JClass<T>::is_pointer;
    out << setw(4) << '.' << setw(8) << left << JClass<T>::is_reference;
    out << setw(4) << '.' << setw(8) << left << JClass<T>::is_constant;
    out << endl;
  }
}


/**
 * Print class parameters.
 *
 * \param  OUT         output stream
 * \param  T           class
 */
#define PRINT(OUT, T)   print<T>(OUT, #T)


/**
 * \file
 *
 * Example program to test JLANG::JClass class.
 * \author mdejong
 */
int main(int argc, char **argv)
{
  using namespace std;
  using namespace JPP;

  int debug;

  try {

    JParser<> zap("Example program to test class inspection.");

    zap['d'] = make_field(debug)     = 3;

    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }

  if (debug >= debug_t) {
    
    cout << setw(36) << left << "name";
    cout << setw(12) << "primitive";
    cout << setw(12) << " pointer";
    cout << setw(12) << "reference";
    cout << setw(12) << "constant";
    cout << endl;
    
    cout << setfill('.');
    
    PRINT(cout, int);
    PRINT(cout, int&);
    PRINT(cout, const int*);
    PRINT(cout, __A__);
    
    PRINT(cout, JClass<int>  ::argument_type);
    PRINT(cout, JClass<__A__>::argument_type);
  }

  ASSERT( JClass<int>::is_primitive);
  ASSERT(!JClass<int>::is_pointer);
  ASSERT(!JClass<int>::is_reference);
  ASSERT(!JClass<int>::is_constant);

  ASSERT( JClass<int&>::is_primitive);
  ASSERT(!JClass<int&>::is_pointer);
  ASSERT( JClass<int&>::is_reference);
  ASSERT(!JClass<int&>::is_constant);

  ASSERT( JClass<const int*>::is_primitive);
  ASSERT( JClass<const int*>::is_pointer);
  ASSERT(!JClass<const int*>::is_reference);
  ASSERT( JClass<const int*>::is_constant);

  ASSERT(!JClass<__A__>::is_primitive);
  ASSERT(!JClass<__A__>::is_pointer);
  ASSERT(!JClass<__A__>::is_reference);
  ASSERT(!JClass<__A__>::is_constant);

  ASSERT(!JClass<JClass<int>  ::argument_type>::is_reference);
  ASSERT( JClass<JClass<__A__>::argument_type>::is_reference);

  ASSERT(is_iterator<__A__> ::value == false);
  ASSERT(is_iterator<__A__&>::value == false);
  ASSERT(is_iterator<__A__*>::value == true);

  ASSERT(is_iterator<vector<__A__>::iterator>::value               == true);
  ASSERT(is_iterator<vector<__A__>::const_iterator>::value         == true);
  ASSERT(is_iterator<vector<__A__>::reverse_iterator>::value       == true);
  ASSERT(is_iterator<vector<__A__>::const_reverse_iterator>::value == true);

  return 0;
}