[Swig-devel] [ swig-Bugs-1832613 ] templates and function typedef generates uncompileable code

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Bugs item #1832613, was opened at 2007-11-15 17:02
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Category: code generation (general)
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: William Fulton (wsfulton)
Assigned to: David M. Beazley (beazley)
Summary: templates and function typedef generates uncompileable code

Initial Comment:
%module example

%include <std_string.i>

%inline %{

#include <string>

template<typename T> class Ptr {};
 
class MCContract {};
typedef Ptr<MCContract> MCContractPtr;
%}

%template() Ptr<MCContract>;

%inline %{
template <class Contract, typename ContractID, typename CallbackType>
class ContractFactory 
{
  public:
    static ContractFactory<Contract,ContractID,CallbackType> &getInstance() {
      static ContractFactory<Contract, ContractID, CallbackType> instance;
      return instance;
    }
};
/**
 * CreateXXContractCallback is a pointer to a function taking no arguments and 
 * returning a pointer to an XXContract. 
 */
typedef MCContractPtr (*CreateMCContractCallback)();
%}


//Get around it by changing this:
  %template(MCContractFactory) ContractFactory<MCContract, std::string, CreateMCContractCallback>;

//to a form which expands the typedef:
//  %template(MCContractFactory) ContractFactory<MCContract, std::string, Ptr<MCContract>(*)()>;

/*
This gets generated:
  ContractFactory<MCContract,std::string,Ptr< > (*)() > *result = 0 ;
It should be:
  ContractFactory<MCContract,std::string,Ptr<MCContract > (*)() > *result = 0 ;
*/


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You can respond by visiting: 
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