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// This could be predefined in e.g. our own boost_shared_ptr.i
#ifndef SWIG_SHARED_PTR_NAMESPACE
#define SWIG_SHARED_PTR_NAMESPACE std
#endif
%define SWIG_SHARED_PTR_TYPEMAPS(CONST, TYPE...)
%naturalvar TYPE;
%naturalvar SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >;
// Replace the default "delete arg1" with the code destroying the smart pointer itself instead.
%feature("unref") TYPE "(void)arg1; delete smartarg1;"
// All smart pointers look like normal objects to the code using the interface.
%typemap(ctype) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >&,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >*
"$typemap(ctype, TYPE)";
// Typemap for smart pointer type itself: these are somewhat special because we represent empty shared pointers as null pointers at C level because there is
// no advantage in using a non-null pointer in this case, while testing for NULL is much simpler than testing whether a shared pointer is empty.
%typemap(in) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > (SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > empty) %{
$1 = $input ? *(SWIG_SHARED_PTR_QNAMESPACE::shared_ptr<CONST TYPE>*)$input : empty; %}
%typemap(in) const SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >& (SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > empty) %{
$1 = $input ? (SWIG_SHARED_PTR_QNAMESPACE::shared_ptr<CONST TYPE>*)$input : ∅ %}
// Note that "&" here is required because "$1" ends up being SwigValueWrapper and not the shared pointer itself. This is wrong and should be fixed by disabling
// the use of SwigValueWrapper for shared pointers entirely, as it's never needed for them.
%typemap(out) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > %{ $result = (&$1 ? new $1_ltype($1) : 0); %}
// Use of "*" here is due to the fact that "$1" is a pointer, but we want to test the smart pointer itself.
%typemap(out) const SWIG_SHARED_PTR_QNAMESPACE::shared_ptr<CONST TYPE>& %{ $result = (*$1 ? $1 : 0); %}
// And for the plain type.
%typemap(in) CONST TYPE (SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *smartarg = 0) %{
smartarg = (SWIG_SHARED_PTR_QNAMESPACE::shared_ptr<CONST TYPE > *)$input;
if (!smartarg || !smartarg->get()) {
SWIG_exception(SWIG_RuntimeError, "$1_type value is null");
return $null;
}
$1 = **smartarg;%}
%typemap(out) CONST TYPE %{
$result = (SwigObj*) new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr<CONST TYPE >(new $1_ltype($1));%}
// Plain type pointer.
%typemap(in) CONST TYPE * (SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *smartarg = 0) %{
smartarg = (SWIG_SHARED_PTR_QNAMESPACE::shared_ptr<CONST TYPE > *)$input;
$1 = (TYPE *)(smartarg ? smartarg->get() : 0);%}
%typemap(out, fragment="SWIG_null_deleter") CONST TYPE * %{
$result = $1 ? (SwigObj*) new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr<CONST TYPE >($1 SWIG_NO_NULL_DELETER_$owner) : 0;%}
// Plain type references.
%typemap(in) CONST TYPE & (SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *smartarg = 0) %{
smartarg = (SWIG_SHARED_PTR_QNAMESPACE::shared_ptr<CONST TYPE > *)$input;
if (!smartarg || !smartarg->get()) {
SWIG_exception(SWIG_RuntimeError, "$1_type reference is null");
return $null;
}
$1 = (TYPE *)smartarg->get();%}
%typemap(out, fragment="SWIG_null_deleter") CONST TYPE & %{
$result = (SwigObj*) new SWIG_SHARED_PTR_QNAMESPACE::shared_ptr<CONST TYPE >($1 SWIG_NO_NULL_DELETER_$owner);%}
// Allow creating null shared pointers and testing them for validity.
%typemap(cxxcode) TYPE %{
static $cxxclassname null() { return $cxxclassname{($cclassptrname)nullptr, false}; }
explicit operator bool() const { return swig_self_ != nullptr; }
%}
// This is required to handle overloads on shared_ptr/normal type correctly.
%typemap(typecheck, precedence=SWIG_TYPECHECK_POINTER, equivalent="TYPE *")
TYPE CONST,
TYPE CONST &,
TYPE CONST *,
TYPE *CONST&,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > &,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *,
SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *&
""
%enddef
%include <shared_ptr.i>
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