Revert "third_party/protobuf: Update to HEAD (f52e188fe4)"

third_party/protobuf/ruby/ext/google/protobuf_c/repeated_field.c

 // Protocol Buffers - Google's data interchange format
 // Copyright 2014 Google Inc.  All rights reserved.
 // https://developers.google.com/protocol-buffers/
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
@@ skipping 226 matching lines @@
   self->size++;
 }
 
 void* RepeatedField_index_native(VALUE _self, int index) {
   RepeatedField* self = ruby_to_RepeatedField(_self);
   upb_fieldtype_t field_type = self->field_type;
   int element_size = native_slot_size(field_type);
   return RepeatedField_memoryat(self, index, element_size);
 }
 
-int RepeatedField_size(VALUE _self) {
-  RepeatedField* self = ruby_to_RepeatedField(_self);
-  return self->size;
-}
-
 /*
  * Private ruby method, used by RepeatedField.pop
  */
 VALUE RepeatedField_pop_one(VALUE _self) {
   RepeatedField* self = ruby_to_RepeatedField(_self);
   upb_fieldtype_t field_type = self->field_type;
   VALUE field_type_class = self->field_type_class;
   int element_size = native_slot_size(field_type);
   int index;
   void* memory;
@@ skipping 178 matching lines @@
 }
 
 /*
  * call-seq:
  *     RepeatedField.hash => hash_value
  *
  * Returns a hash value computed from this repeated field's elements.
  */
 VALUE RepeatedField_hash(VALUE _self) {
   RepeatedField* self = ruby_to_RepeatedField(_self);
-  st_index_t h = rb_hash_start(0);
-  VALUE hash_sym = rb_intern("hash");
+
+  VALUE hash = LL2NUM(0);
+
   upb_fieldtype_t field_type = self->field_type;
   VALUE field_type_class = self->field_type_class;
   size_t elem_size = native_slot_size(field_type);
   size_t off = 0;
   for (int i = 0; i < self->size; i++, off += elem_size) {
     void* mem = ((uint8_t *)self->elements) + off;
     VALUE elem = native_slot_get(field_type, field_type_class, mem);
-    h = rb_hash_uint(h, NUM2LONG(rb_funcall(elem, hash_sym, 0)));
+    hash = rb_funcall(hash, rb_intern("<<"), 1, INT2NUM(2));
+    hash = rb_funcall(hash, rb_intern("^"), 1,
+                      rb_funcall(elem, rb_intern("hash"), 0));
   }
-  h = rb_hash_end(h);
 
-  return INT2FIX(h);
+  return hash;
 }
 
 /*
  * call-seq:
  *     RepeatedField.+(other) => repeated field
  *
  * Returns a new repeated field that contains the concatenated list of this
  * repeated field's elements and other's elements. The other (second) list may
  * be either another repeated field or a Ruby array.
  */
@@ skipping 171 matching lines @@
   rb_define_method(klass, "dup", RepeatedField_dup, 0);
   // Also define #clone so that we don't inherit Object#clone.
   rb_define_method(klass, "clone", RepeatedField_dup, 0);
   rb_define_method(klass, "==", RepeatedField_eq, 1);
   rb_define_method(klass, "to_ary", RepeatedField_to_ary, 0);
   rb_define_method(klass, "hash", RepeatedField_hash, 0);
   rb_define_method(klass, "+", RepeatedField_plus, 1);
   rb_define_method(klass, "concat", RepeatedField_concat, 1);
   rb_include_module(klass, rb_mEnumerable);
 }