1 files changed, 131 insertions, 0 deletions
diff --git a/spec/rubyspec/optional/capi/ext/struct_spec.c b/spec/rubyspec/optional/capi/ext/struct_spec.c
new file mode 100644
index 0000000000..8f373d9f48
--- /dev/null
+++ b/spec/rubyspec/optional/capi/ext/struct_spec.c
@@ -0,0 +1,131 @@
+#include "ruby.h"
+#include "rubyspec.h"
+
+#include "ruby/intern.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef HAVE_RB_STRUCT_AREF
+static VALUE struct_spec_rb_struct_aref(VALUE self, VALUE st, VALUE key) {
+  return rb_struct_aref(st, key);
+}
+#endif
+
+#ifdef HAVE_RB_STRUCT_GETMEMBER
+static VALUE struct_spec_rb_struct_getmember(VALUE self, VALUE st, VALUE key) {
+  return rb_struct_getmember(st, SYM2ID(key));
+}
+#endif
+
+#ifdef HAVE_RB_STRUCT_S_MEMBERS
+static VALUE struct_spec_rb_struct_s_members(VALUE self, VALUE klass)
+{
+  return rb_ary_dup(rb_struct_s_members(klass));
+}
+#endif
+
+#ifdef HAVE_RB_STRUCT_MEMBERS
+static VALUE struct_spec_rb_struct_members(VALUE self, VALUE st)
+{
+  return rb_ary_dup(rb_struct_members(st));
+}
+#endif
+
+#ifdef HAVE_RB_STRUCT_ASET
+static VALUE struct_spec_rb_struct_aset(VALUE self, VALUE st, VALUE key, VALUE value) {
+  return rb_struct_aset(st, key, value);
+}
+#endif
+
+#ifdef HAVE_RB_STRUCT_DEFINE
+/* Only allow setting three attributes, should be sufficient for testing. */
+static VALUE struct_spec_struct_define(VALUE self, VALUE name,
+  VALUE attr1, VALUE attr2, VALUE attr3) {
+
+  const char *a1 = StringValuePtr(attr1);
+  const char *a2 = StringValuePtr(attr2);
+  const char *a3 = StringValuePtr(attr3);
+  char *nm = NULL;
+
+  if (name != Qnil) nm = StringValuePtr(name);
+
+  return rb_struct_define(nm, a1, a2, a3, NULL);
+}
+#endif
+
+#ifdef HAVE_RB_STRUCT_DEFINE_UNDER
+/* Only allow setting three attributes, should be sufficient for testing. */
+static VALUE struct_spec_struct_define_under(VALUE self, VALUE outer,
+  VALUE name, VALUE attr1, VALUE attr2, VALUE attr3) {
+
+  const char *nm = StringValuePtr(name);
+  const char *a1 = StringValuePtr(attr1);
+  const char *a2 = StringValuePtr(attr2);
+  const char *a3 = StringValuePtr(attr3);
+
+  return rb_struct_define_under(outer, nm, a1, a2, a3, NULL);
+}
+#endif
+
+#ifdef HAVE_RB_STRUCT_NEW
+static VALUE struct_spec_rb_struct_new(VALUE self, VALUE klass,
+                                       VALUE a, VALUE b, VALUE c)
+{
+
+  return rb_struct_new(klass, a, b, c);
+}
+#endif
+
+#ifdef HAVE_RB_STRUCT_SIZE
+static VALUE struct_spec_rb_struct_size(VALUE self, VALUE st)
+{
+  return rb_struct_size(st);
+}
+#endif
+
+void Init_struct_spec(void) {
+  VALUE cls;
+  cls = rb_define_class("CApiStructSpecs", rb_cObject);
+
+#ifdef HAVE_RB_STRUCT_AREF
+  rb_define_method(cls, "rb_struct_aref", struct_spec_rb_struct_aref, 2);
+#endif
+
+#ifdef HAVE_RB_STRUCT_GETMEMBER
+  rb_define_method(cls, "rb_struct_getmember", struct_spec_rb_struct_getmember, 2);
+#endif
+
+#ifdef HAVE_RB_STRUCT_S_MEMBERS
+  rb_define_method(cls, "rb_struct_s_members", struct_spec_rb_struct_s_members, 1);
+#endif
+
+#ifdef HAVE_RB_STRUCT_MEMBERS
+  rb_define_method(cls, "rb_struct_members", struct_spec_rb_struct_members, 1);
+#endif
+
+#ifdef HAVE_RB_STRUCT_ASET
+  rb_define_method(cls, "rb_struct_aset", struct_spec_rb_struct_aset, 3);
+#endif
+
+#ifdef HAVE_RB_STRUCT_DEFINE
+  rb_define_method(cls, "rb_struct_define", struct_spec_struct_define, 4);
+#endif
+
+#ifdef HAVE_RB_STRUCT_DEFINE_UNDER
+  rb_define_method(cls, "rb_struct_define_under", struct_spec_struct_define_under, 5);
+#endif
+
+#ifdef HAVE_RB_STRUCT_NEW
+  rb_define_method(cls, "rb_struct_new", struct_spec_rb_struct_new, 4);
+#endif
+
+#ifdef HAVE_RB_STRUCT_SIZE
+  rb_define_method(cls, "rb_struct_size", struct_spec_rb_struct_size, 1);
+#endif
+}
+
+#ifdef __cplusplus
+}
+#endif