Mark Closure, Function and Handle as write barrier protected (#129)

They don't have a mark function, so they don't need any change.
Co-authored-by: Jean Boussier <jean.boussier@gmail.com>

Author: casperisfine

ext/fiddle/closure.c

@@ -54,10 +54,13 @@ closure_memsize(const void * ptr)
 }
 
 constrb_data_type_tclosure_data_type= {
-"fiddle/closure",
- {0, dealloc, closure_memsize,},
-0, 0,
-RUBY_TYPED_FREE_IMMEDIATELY,
+ .wrap_struct_name="fiddle/closure",
+ .function= {
+ .dmark=0,
+ .dfree=dealloc,
+ .dsize=closure_memsize
+ },
+ .flags=RUBY_TYPED_FREE_IMMEDIATELY | RUBY_TYPED_WB_PROTECTED,
 };
 
 structcallback_args {

ext/fiddle/function.c

@@ -53,8 +53,13 @@ function_memsize(const void *p)
 }
 
 constrb_data_type_tfunction_data_type= {
-"fiddle/function",
- {0, deallocate, function_memsize,},
+ .wrap_struct_name="fiddle/function",
+ .function= {
+ .dmark=0,
+ .dfree=deallocate,
+ .dsize=function_memsize
+ },
+ .flags=RUBY_TYPED_FREE_IMMEDIATELY | RUBY_TYPED_WB_PROTECTED,
 };
 
 staticVALUE

ext/fiddle/handle.c

@@ -50,8 +50,13 @@ fiddle_handle_memsize(const void *ptr)
 }
 
 staticconstrb_data_type_tfiddle_handle_data_type= {
-"fiddle/handle",
- {0, fiddle_handle_free, fiddle_handle_memsize,},
+ .wrap_struct_name="fiddle/handle",
+ .function= {
+ .dmark=0,
+ .dfree=fiddle_handle_free,
+ .dsize=fiddle_handle_memsize
+ },
+ .flags=RUBY_TYPED_WB_PROTECTED,
 };
 
 /*