add verbose_backtrace

include/mruby.h

@@ -323,6 +323,7 @@ void mrb_name_error(mrb_state *mrb, mrb_sym id, const char *fmt, ...);
 void mrb_warn(mrb_state *mrb, const char *fmt, ...);
 void mrb_bug(mrb_state *mrb, const char *fmt, ...);
 void mrb_print_backtrace(mrb_state *mrb);
+void mrb_print_verbose_backtrace(mrb_state *mrb);
 void mrb_print_error(mrb_state *mrb);
 
 /* macros to get typical exception objects

src/backtrace.c

@@ -55,7 +55,7 @@ get_backtrace_i(mrb_state *mrb, void *stream, int level, const char *format, ...
 }
 
 static void
-mrb_output_backtrace(mrb_state *mrb, struct RObject *exc, output_stream_func func, void *stream)
+mrb_output_backtrace(mrb_state *mrb, struct RObject *exc, output_stream_func func, void *stream, mrb_bool verbose)
 {
   mrb_callinfo *ci;
   mrb_int ciidx;
@@ -72,10 +72,10 @@ mrb_output_backtrace(mrb_state *mrb, struct RObject *exc, output_stream_func fun
     filename = "(unknown)";
     line = -1;
 
-    if (MRB_PROC_CFUNC_P(ci->proc)) {
+    if (!verbose && MRB_PROC_CFUNC_P(ci->proc)) {
       continue;
     }
-    else {
+    if(!MRB_PROC_CFUNC_P(ci->proc)) {
       mrb_irep *irep = ci->proc->body.irep;
       if (irep->filename != NULL)
         filename = irep->filename;
@@ -93,13 +93,16 @@ mrb_output_backtrace(mrb_state *mrb, struct RObject *exc, output_stream_func fun
         }
       }
     }
-    if (line == -1) continue;
+    if (!verbose && line == -1) continue;
     if (ci->target_class == ci->proc->target_class)
       sep = ".";
     else
       sep = "#";
 
     method = mrb_sym2name(mrb, ci->mid);
+    if (verbose && !method && ci->proc->env) {
+      method = mrb_sym2name(mrb, ci->proc->env->mid);
+    }
     if (method) {
       const char *cn = mrb_class_name(mrb, ci->proc->target_class);
 
@@ -126,7 +129,15 @@ void
 mrb_print_backtrace(mrb_state *mrb)
 {
 #ifdef ENABLE_STDIO
-  mrb_output_backtrace(mrb, mrb->exc, print_backtrace_i, (void*)stderr);
+  mrb_output_backtrace(mrb, mrb->exc, print_backtrace_i, (void*)stderr, 0);
+#endif
+}
+
+void
+mrb_print_verbose_backtrace(mrb_state *mrb)
+{
+#ifdef ENABLE_STDIO
+  mrb_output_backtrace(mrb, mrb->exc, print_backtrace_i, (void*)stderr, 1);
 #endif
 }
 
@@ -136,7 +147,18 @@ mrb_get_backtrace(mrb_state *mrb, mrb_value self)
   mrb_value ary;
 
   ary = mrb_ary_new(mrb);
-  mrb_output_backtrace(mrb, mrb_obj_ptr(self), get_backtrace_i, (void*)mrb_ary_ptr(ary));
+  mrb_output_backtrace(mrb, mrb_obj_ptr(self), get_backtrace_i, (void*)mrb_ary_ptr(ary), 0);
+
+  return ary;
+}
+
+mrb_value
+mrb_get_verbose_backtrace(mrb_state *mrb, mrb_value self)
+{
+  mrb_value ary;
+
+  ary = mrb_ary_new(mrb);
+  mrb_output_backtrace(mrb, mrb_obj_ptr(self), get_backtrace_i, (void*)mrb_ary_ptr(ary), 1);
 
   return ary;
 }

src/class.c

@@ -311,6 +311,7 @@ mrb_define_method_id(mrb_state *mrb, struct RClass *c, mrb_sym mid, mrb_func_t f
   int ai = mrb_gc_arena_save(mrb);
 
   p = mrb_proc_new_cfunc(mrb, func);
+  p->target_class = c;
   mrb_define_method_raw(mrb, c, mid, p);
   mrb_gc_arena_restore(mrb, ai);
 }

src/error.c

@@ -436,6 +436,7 @@ mrb_sys_fail(mrb_state *mrb, const char *mesg)
 }
 
 mrb_value mrb_get_backtrace(mrb_state*, mrb_value);
+mrb_value mrb_get_verbose_backtrace(mrb_state*, mrb_value);
 
 void
 mrb_init_exception(mrb_state *mrb)
@@ -451,6 +452,7 @@ mrb_init_exception(mrb_state *mrb)
   mrb_define_method(mrb, e, "message", exc_message, MRB_ARGS_NONE());
   mrb_define_method(mrb, e, "inspect", exc_inspect, MRB_ARGS_NONE());
   mrb_define_method(mrb, e, "backtrace", mrb_get_backtrace, MRB_ARGS_NONE());
+  mrb_define_method(mrb, e, "verbose_backtrace", mrb_get_verbose_backtrace, MRB_ARGS_NONE());
 
   mrb->eStandardError_class     = mrb_define_class(mrb, "StandardError",       mrb->eException_class); /* 15.2.23 */
   mrb_define_class(mrb, "RuntimeError", mrb->eStandardError_class);                                    /* 15.2.28 */

test/t/exception.rb

@@ -345,3 +345,13 @@ assert('Exception#backtrace') do
 
   true
 end
+
+assert('Exception#verbose_backtrace') do
+  begin
+    raise "get backtrace"
+  rescue => e
+    e.verbose_backtrace
+  end
+
+  true
+end