Refactor rb_obj_call_init to pass block argument to initialize.

Author: aardvark179

CHANGELOG.md

@@ -17,6 +17,7 @@ Bug fixes:
 * Fix `String#unpack("Z")` to not advance after the null byte, like CRuby (#2659, @aardvark179).
 * Fix `Float#round` to avoid losing precision during the rounding process (@aardvark179).
 * Fix `String#insert` to not call a subclassed string method (@bjfish).
+* Fix `rb_obj_call_init` to pass any block argument to the `initialize` method (#2675, @aardvark179).
 
 Compatibility:
 

lib/cext/ABI_check.txt

@@ -1 +1 @@
-3
+4

lib/truffle/truffle/cext.rb

@@ -1217,8 +1217,8 @@ def rb_equal(a, b)
     Primitive.object_same_or_equal(a, b)
   end
 
-  def rb_obj_call_init(obj, args)
-    obj.__send__ :initialize, *args
+  def rb_obj_call_init(obj, args, block)
+    obj.__send__ :initialize, *args, &block
   end
 
   def rb_obj_instance_eval(obj, args, block)

src/main/c/cext/object.c

@@ -125,7 +125,7 @@ VALUE rb_equal(VALUE a, VALUE b) {
 }
 
 void rb_obj_call_init(VALUE object, int argc, const VALUE *argv) {
-  RUBY_CEXT_INVOKE_NO_WRAP("rb_obj_call_init", object, rb_ary_new4(argc, argv));
+  RUBY_CEXT_INVOKE_NO_WRAP("rb_obj_call_init", object, rb_ary_new4(argc, argv), rb_block_proc());
 }
 
 // taint status