encoding.c: defer finding encoding

* encoding.c (enc_m_loader): defer finding encoding object not to
  be infected by marshal source.  [ruby-core:71793] [Bug #11760]
* marshal.c (r_object0): enable compatible loader on USERDEF
  class.  the loader function is called with the class itself,
  instead of an allocated object, and the loaded data.
* marshal.c (compat_allocator_table): intialize
  compat_allocator_tbl on demand.
* object.c (rb_undefined_alloc): extract from rb_obj_alloc.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52856 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 2 deletions

diff --git a/object.c b/object.c
index 5023f64b0d..ff2db0b45a 100644
--- a/object.c
+++ b/object.c
@@ -1770,6 +1770,13 @@ rb_class_initialize(int argc, VALUE *argv, VALUE klass)
     return klass;
 }
 
+void
+rb_undefined_alloc(VALUE klass)
+{
+    rb_raise(rb_eTypeError, "allocator undefined for %"PRIsVALUE,
+	     klass);
+}
+
 /*
  *  call-seq:
  *     class.allocate()   ->   obj
@@ -1806,8 +1813,7 @@ rb_obj_alloc(VALUE klass)
     }
     allocator = rb_get_alloc_func(klass);
     if (!allocator) {
-	rb_raise(rb_eTypeError, "allocator undefined for %"PRIsVALUE,
-		 klass);
+	rb_undefined_alloc(klass);
     }
 
     RUBY_DTRACE_CREATE_HOOK(OBJECT, rb_class2name(klass));