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Implement type checking for XS objects

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Type handling is mainly done using templates.
Template Slic3r::ClassTraits is used to store info about exported types (perl class name). Currently only perl class name and refference name is used.
Template values are initialized by REGISTER_CLASS macro. This macro is used in .cpp file of class ( it needs to be used exactly for each type).

Ref<type> class is used to return value as perl reference. Operator overloading is used to make c++ and XSpp happy, only pointer value should be possible to return.

Clone<type> class is used to return copy of value ( using new and copy constructor). Copy is created on assigment, this should be probably improved (memory leak on multiple assignments).
It is overloaded to be able to return type, type* and type&.

Typechecking in ExtrusionEntityCollection updated to check all passed types.
This commit is contained in:
Petr Ledvina 2014-04-27 19:18:53 +02:00
parent e68b6b6f4c
commit 115aa6885f
35 changed files with 426 additions and 173 deletions
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26
xs/xsp/ExtrusionEntityCollection.xsp
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@ -3,6 +3,7 @@
%{
#include <myinit.h>
#include "ExtrusionEntityCollection.hpp"
#include "perlglue.hpp"
%}
%name{Slic3r::ExtrusionPath::Collection} class ExtrusionEntityCollection {
@ -12,20 +13,16 @@
%code{% THIS->entities.clear(); %};
ExtrusionEntityCollection* chained_path(bool no_reverse)
%code{%
const char* CLASS = "Slic3r::ExtrusionPath::Collection";
RETVAL = new ExtrusionEntityCollection();
THIS->chained_path(RETVAL, no_reverse);
%};
ExtrusionEntityCollection* chained_path_from(Point* start_near, bool no_reverse)
%code{%
const char* CLASS = "Slic3r::ExtrusionPath::Collection";
RETVAL = new ExtrusionEntityCollection();
THIS->chained_path_from(*start_near, RETVAL, no_reverse);
%};
Point* first_point()
%code{% const char* CLASS = "Slic3r::Point"; RETVAL = new Point(THIS->first_point()); %};
Point* last_point()
%code{% const char* CLASS = "Slic3r::Point"; RETVAL = new Point(THIS->last_point()); %};
Clone<Point> first_point();
Clone<Point> last_point();
int count()
%code{% RETVAL = THIS->entities.size(); %};
std::vector<size_t> orig_indices()
@ -50,11 +47,13 @@ ExtrusionEntityCollection::arrayref()
SV* sv = newSV(0);
// return our item by reference
if (ExtrusionPath* path = dynamic_cast<ExtrusionPath*>(*it)) {
sv_setref_pv( sv, "Slic3r::ExtrusionPath::Ref", path );
sv_setref_pv( sv, perl_class_name_ref(path), path );
} else if (ExtrusionLoop* loop = dynamic_cast<ExtrusionLoop*>(*it)) {
sv_setref_pv( sv, "Slic3r::ExtrusionLoop::Ref", loop );
sv_setref_pv( sv, perl_class_name_ref(loop), loop );
} else if (ExtrusionEntityCollection* collection = dynamic_cast<ExtrusionEntityCollection*>(*it)) {
sv_setref_pv( sv, perl_class_name_ref(collection), collection );
} else {
sv_setref_pv( sv, "Slic3r::ExtrusionPath::Collection::Ref", *it );
croak("Unexpected type in ExtrusionEntityCollection");
}
av_store(av, i++, sv);
}
@ -66,14 +65,19 @@ void
ExtrusionEntityCollection::append(...)
CODE:
for (unsigned int i = 1; i < items; i++) {
if(!sv_isobject( ST(i) ) || (SvTYPE(SvRV( ST(i) )) != SVt_PVMG)) {
croak("Argument %d is not object", i);
}
ExtrusionEntity* entity = (ExtrusionEntity *)SvIV((SV*)SvRV( ST(i) ));
// append COPIES
if (ExtrusionPath* path = dynamic_cast<ExtrusionPath*>(entity)) {
THIS->entities.push_back( new ExtrusionPath(*path) );
} else if (ExtrusionLoop* loop = dynamic_cast<ExtrusionLoop*>(entity)) {
THIS->entities.push_back( new ExtrusionLoop(*loop) );
} else if(ExtrusionEntityCollection* collection = dynamic_cast<ExtrusionEntityCollection*>(entity)) {
THIS->entities.push_back( collection->clone() );
} else {
THIS->entities.push_back( (*(ExtrusionEntityCollection*)entity).clone() );
croak("Argument %d is of unknown type", i);
}
}
@ -89,8 +93,6 @@ ExtrusionEntityCollection::no_sort(...)
ExtrusionEntityCollection*
ExtrusionEntityCollection::chained_path_indices(bool no_reverse)
PREINIT:
const char* CLASS = "Slic3r::ExtrusionPath::Collection";
CODE:
RETVAL = new ExtrusionEntityCollection();
THIS->chained_path(RETVAL, no_reverse, &RETVAL->orig_indices);