jyapayne/swig
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add minimal shared_ptr support

Browse source 
Enable the tests and support of shared_ptr in them for C (which required
disabling a previously passing, because not doing anything, attributes
test which is currently broken for unrelated reasons).
This commit is contained in:
Vadim Zeitlin 2021-10-15 01:26:22 +02:00
commit e78c8f39ed
12 changed files with 132 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

5
Lib/c/boost_shared_ptr.i Normal file
View file

@ -0,0 +1,5 @@
#ifndef SWIG_SHARED_PTR_NAMESPACE
#define SWIG_SHARED_PTR_NAMESPACE boost
#endif
%include <std_shared_ptr.i>

55
Lib/c/std_shared_ptr.i Normal file
View file

@ -0,0 +1,55 @@
// 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 >*
"$typemap(ctype, TYPE)";
// Typemap for smart pointer type itself.
%typemap(out) SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE >
"$result = new $1_ltype($1);"
// And for the plain type.
%typemap(in) CONST TYPE (SWIG_SHARED_PTR_QNAMESPACE::shared_ptr< CONST TYPE > *smartarg = 0) %{
smartarg = (SWIG_SHARED_PTR_QNAMESPACE::shared_ptr<CONST TYPE > *)$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);%}
%enddef
%include <shared_ptr.i>