Delete useless Namespace#current_details

The implementation of Namespace#current_details shows warning about
use of snprintf directive arguments (only in gcc environments?).
This method will be useless when the current namespace management
will be updated.

Author: tagomoris

namespace.c

@@ -280,109 +280,6 @@ rb_definition_namespace(void)
     return ns;
 }
 
-VALUE
-rb_current_namespace_details(VALUE opt)
-{
-    const rb_callable_method_entry_t *cme;
-    VALUE str, part, nsobj;
-    char buf[2048];
-    const char *path;
-    int calling = 1;
-    long i;
-    rb_execution_context_t *ec = GET_EC();
-    rb_control_frame_t *cfp = ec->cfp;
-    rb_thread_t *th = rb_ec_thread_ptr(ec);
-    const rb_namespace_t *ns = rb_current_namespace();
-    rb_vm_t *vm = GET_VM();
-    VALUE require_stack = vm->require_stack;
-
-    str = rb_namespace_inspect(ns ? ns->ns_object : Qfalse);
-    if (NIL_P(opt)) return str;
-
-    rb_str_cat_cstr(str, "\n");
-
-    part = rb_namespace_inspect(th->ns ? th->ns->ns_object : Qfalse);
-    snprintf(buf, 2048, "main:%s, th->ns:%s, th->nss:%ld, rstack:%ld\n",
-             main_namespace ? "t" : "f",
-             RSTRING_PTR(part),
-             th->namespaces ? RARRAY_LEN(th->namespaces) : 0,
-             require_stack ? RARRAY_LEN(require_stack) : 0);
-    RB_GC_GUARD(part);
-    rb_str_cat_cstr(str, buf);
-
-    if (th->namespaces && RARRAY_LEN(th->namespaces) > 0) {
-        for (i=0; i<RARRAY_LEN(th->namespaces); i++) {
-            nsobj = RARRAY_AREF(th->namespaces, i);
-            part = rb_namespace_inspect(nsobj);
-            snprintf(buf, 2048, "  th->nss[%ld] %s\n", i, RSTRING_PTR(part));
-            RB_GC_GUARD(part);
-            rb_str_cat_cstr(str, buf);
-        }
-    }
-
-
-    rb_str_cat_cstr(str, "calls:\n");
-
-    while (calling && cfp) {
-        const rb_namespace_t *proc_ns;
-        VALUE bh;
-        if (VM_FRAME_NS_SWITCH_P(cfp)) {
-            bh = rb_vm_frame_block_handler(cfp);
-            if (bh && vm_block_handler_type(bh) == block_handler_type_proc) {
-                proc_ns = block_proc_namespace(VM_BH_TO_PROC(bh));
-                if (NAMESPACE_USER_P(ns)) {
-                    part = rb_namespace_inspect(proc_ns->ns_object);
-                    snprintf(buf, 2048, " cfp->ns:%s", RSTRING_PTR(part));
-                    RB_GC_GUARD(part);
-                    calling = 0;
-                    break;
-                }
-            }
-        }
-        cme = rb_vm_frame_method_entry(cfp);
-        if (cme && cme->def) {
-            if (cme->def->type == VM_METHOD_TYPE_ISEQ)
-                path = RSTRING_PTR(pathobj_path(cme->def->body.iseq.iseqptr->body->location.pathobj));
-            else
-                path = "(cfunc)";
-            ns = cme->def->ns;
-            if (ns) {
-                part = rb_namespace_inspect(ns->ns_object);
-                if (!namespace_ignore_builtin_primitive_methods_p(ns, cme->def)) {
-                    snprintf(buf, 2048, " cfp cme->def id:%s, ns:%s, exprim:t, path:%s\n",
-                             rb_id2name(cme->def->original_id),
-                             RSTRING_PTR(part),
-                             path);
-                    RB_GC_GUARD(part);
-                    rb_str_cat_cstr(str, buf);
-                    calling = 0;
-                    break;
-                }
-                else {
-                    snprintf(buf, 2048, " cfp cme->def id:%s, ns:%s, exprim:f, path:%s\n",
-                             rb_id2name(cme->def->original_id),
-                             RSTRING_PTR(part),
-                             path);
-                    RB_GC_GUARD(part);
-                    rb_str_cat_cstr(str, buf);
-                }
-            }
-            else {
-                snprintf(buf, 2048, " cfp cme->def id:%s, ns:null, path:%s\n",
-                         rb_id2name(cme->def->original_id),
-                         path);
-                rb_str_cat_cstr(str, buf);
-            }
-            cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(cfp);
-        }
-        else {
-            calling = 0;
-        }
-    }
-    rb_str_cat_cstr(str, ".\n");
-    return str;
-}
-
 static long namespace_id_counter = 0;
 
 static long
@@ -1161,7 +1058,6 @@ Init_Namespace(void)
 
     rb_define_singleton_method(rb_cNamespace, "enabled?", rb_namespace_s_getenabled, 0);
     rb_define_singleton_method(rb_cNamespace, "current", rb_namespace_current, 0);
-    rb_define_singleton_method(rb_cNamespace, "current_details", rb_current_namespace_details, 0);
     rb_define_singleton_method(rb_cNamespace, "is_builtin?", rb_namespace_s_is_builtin_p, 1);
 
     rb_define_method(rb_cNamespace, "load_path", rb_namespace_load_path, 0);