[pull] master from ruby:master

NEWS.md

@@ -11,6 +11,11 @@ Note that each entry is kept to a minimum, see links for details.
 
 Note: We're only listing outstanding class updates.
 
+* Array
+
+    * `Array#pack` accepts a new format `R` and `r` for unpacking unsigned
+      and signed LEB128 encoded integers. [[Feature #21785]]
+
 * ENV
 
     * `ENV.fetch_values` is added. It returns an array of values for the
@@ -31,17 +36,6 @@ Note: We're only listing outstanding class updates.
     * `MatchData#integer_at` is added.  It converts the matched substring to
       integer and return the result.  [[Feature #21932]]
 
-* Method
-
-    * `Method#source_location`, `Proc#source_location`, and
-      `UnboundMethod#source_location` now return extended location
-      information with 5 elements: `[path, start_line, start_column,
-      end_line, end_column]`. The previous 2-element format `[path,
-      line]` can still be obtained by calling `.take(2)` on the result.
-      [[Feature #6012]]
-    * `Array#pack` accepts a new format `R` and `r` for unpacking unsigned
-      and signed LEB128 encoded integers. [[Feature #21785]]
-
 * Regexp
 
     * All instances of `Regexp` are now frozen, not just literals.
@@ -145,7 +139,6 @@ A lot of work has gone into making Ractors more stable, performant, and usable.
 
 ## JIT
 
-[Feature #6012]: https://bugs.ruby-lang.org/issues/6012
 [Feature #8948]: https://bugs.ruby-lang.org/issues/8948
 [Feature #15330]: https://bugs.ruby-lang.org/issues/15330
 [Feature #21390]: https://bugs.ruby-lang.org/issues/21390

gc.c

@@ -1073,6 +1073,37 @@ rb_wb_protected_newobj_of(rb_execution_context_t *ec, VALUE klass, VALUE flags,
     return newobj_of(rb_ec_ractor_ptr(ec), klass, flags, shape_id, TRUE, size);
 }
 
+VALUE
+rb_class_allocate_instance(VALUE klass)
+{
+    uint32_t index_tbl_num_entries = RCLASS_MAX_IV_COUNT(klass);
+
+    size_t size = rb_obj_embedded_size(index_tbl_num_entries);
+    if (!rb_gc_size_allocatable_p(size)) {
+        size = sizeof(struct RObject);
+    }
+
+    // There might be a NEWOBJ tracepoint callback, and it may set fields.
+    // So the shape must be passed to `NEWOBJ_OF`.
+    VALUE flags = T_OBJECT | (RGENGC_WB_PROTECTED_OBJECT ? FL_WB_PROTECTED : 0);
+    NEWOBJ_OF_WITH_SHAPE(o, struct RObject, klass, flags, rb_shape_root(rb_gc_heap_id_for_size(size)), size, 0);
+    VALUE obj = (VALUE)o;
+
+#if RUBY_DEBUG
+    RUBY_ASSERT(!rb_shape_obj_too_complex_p(obj));
+    VALUE *ptr = ROBJECT_FIELDS(obj);
+    size_t fields_count = RSHAPE_LEN(RBASIC_SHAPE_ID(obj));
+    for (size_t i = fields_count; i < ROBJECT_FIELDS_CAPACITY(obj); i++) {
+        ptr[i] = Qundef;
+    }
+    if (rb_obj_class(obj) != rb_class_real(klass)) {
+        rb_bug("Expected rb_class_allocate_instance to set the class correctly");
+    }
+#endif
+
+    return obj;
+}
+
 void
 rb_gc_register_pinning_obj(VALUE obj)
 {

gems/bundled_gems

@@ -39,7 +39,7 @@ benchmark           0.5.0   https://github.com/ruby/benchmark
 logger              1.7.0   https://github.com/ruby/logger
 rdoc                7.2.0   https://github.com/ruby/rdoc 911b122a587e24f05434dbeb2c3e39cea607e21f
 win32ole            1.9.3   https://github.com/ruby/win32ole
-irb                 1.17.0  https://github.com/ruby/irb
+irb                 1.17.0  https://github.com/ruby/irb cfd0b917d3feb01adb7d413b19faeb0309900599
 reline              0.6.3   https://github.com/ruby/reline
 readline            0.0.4   https://github.com/ruby/readline
 fiddle              1.1.8   https://github.com/ruby/fiddle

internal/object.h

@@ -11,7 +11,7 @@
 #include "ruby/ruby.h"          /* for VALUE */
 
 /* object.c */
-size_t rb_obj_embedded_size(uint32_t fields_count);
+
 VALUE rb_class_allocate_instance(VALUE klass);
 VALUE rb_class_search_ancestor(VALUE klass, VALUE super);
 NORETURN(void rb_undefined_alloc(VALUE klass));
@@ -60,4 +60,10 @@ RBASIC_SET_CLASS(VALUE obj, VALUE klass)
     RBASIC_SET_CLASS_RAW(obj, klass);
     RB_OBJ_WRITTEN(obj, oldv, klass);
 }
+
+static inline size_t
+rb_obj_embedded_size(uint32_t fields_count)
+{
+    return offsetof(struct RObject, as.ary) + (sizeof(VALUE) * fields_count);
+}
 #endif /* INTERNAL_OBJECT_H */