Add Ruby std_array.i - std::array wrappers

Lib/ruby/std_array.i

@@ -0,0 +1,103 @@
+/*
+  std::array
+*/
+
+%fragment("StdArrayTraits","header",fragment="StdSequenceTraits")
+%{
+  namespace swig {
+    template <class T, size_t N>
+    struct traits_asptr<std::array<T, N> >  {
+      static int asptr(VALUE obj, std::array<T, N> **vec) {
+	return traits_asptr_stdseq<std::array<T, N> >::asptr(obj, vec);
+      }
+    };
+    
+    template <class T, size_t N>
+    struct traits_from<std::array<T, N> > {
+      static VALUE from(const std::array<T, N>& vec) {
+	return traits_from_stdseq<std::array<T, N> >::from(vec);
+      }
+    };
+
+    template <class RubySeq, class T, size_t N>
+    inline void
+    assign(const RubySeq& rubyseq, std::array<T, N>* seq) {
+      if (rubyseq.size() < seq->size())
+        throw std::invalid_argument("std::array cannot be expanded in size");
+      else if (rubyseq.size() > seq->size())
+        throw std::invalid_argument("std::array cannot be reduced in size");
+      std::copy(rubyseq.begin(), rubyseq.end(), seq->begin());
+    }
+
+    template <class T, size_t N>
+    inline void
+    resize(std::array<T, N> *seq, typename std::array<T, N>::size_type n, typename std::array<T, N>::value_type x) {
+      throw std::invalid_argument("std::array is a fixed size container and does not support resizing");
+    }
+
+    // Only limited slicing is supported as std::array is fixed in size
+    template <class T, size_t N, class Difference>
+    inline std::array<T, N>*
+    getslice(const std::array<T, N>* self, Difference i, Difference j) {
+      using Sequence = std::array<T, N>;
+      typename Sequence::size_type size = self->size();
+      typename Sequence::size_type ii = swig::check_index(i, size);
+      typename Sequence::size_type jj = swig::slice_index(j, size);
+
+      if (ii == 0 && jj == size) {
+        Sequence *sequence = new Sequence();
+        std::copy(self->begin(), self->end(), sequence->begin());
+        return sequence;
+      } else {
+        throw std::invalid_argument("std::array object only supports getting a slice that is the size of the array");
+      }
+    }
+
+    template <class T, size_t N, class Difference, class InputSeq>
+    inline void
+    setslice(std::array<T, N>* self, Difference i, Difference j, const InputSeq& v) {
+      using Sequence = std::array<T, N>;
+      typename Sequence::size_type size = self->size();
+      typename Sequence::size_type ii = swig::check_index(i, size, true);
+      typename Sequence::size_type jj = swig::slice_index(j, size);
+
+std::cout << "setslice " << v[0] << " " << v[1] << std::endl;
+      if (ii == 0 && jj == size) {
+        std::copy(v.begin(), v.end(), self->begin());
+      } else {
+        throw std::invalid_argument("std::array object only supports setting a slice that is the size of the array");
+      }
+    }
+
+    template <class T, size_t N, class Difference>
+    inline void
+    delslice(std::array<T, N>* self, Difference i, Difference j) {
+      throw std::invalid_argument("std::array object does not support item deletion");
+    }
+  }
+%}
+
+
+%define %swig_array_methods(Type...)
+  %swig_sequence_methods_non_resizable(Type)
+%enddef
+
+%define %swig_array_methods_val(Type...)
+  %swig_sequence_methods_non_resizable_val(Type);
+%enddef
+
+
+%mixin std::array "Enumerable";
+%ignore std::array::push_back;
+%ignore std::array::pop_back;
+
+
+%rename("delete")     std::array::__delete__;
+%rename("reject!")    std::array::reject_bang;
+%rename("map!")       std::array::map_bang;
+%rename("empty?")     std::array::empty;
+%rename("include?" )  std::array::__contains__ const;
+%rename("has_key?" )  std::array::has_key const;
+
+%include <std/std_array.i>
+