/// <summary>
/// 获取当前异常调用堆栈信息
/// https://qiita.com/seanchas_t/items/ca293f9dd4454cd6cb6d
/// </summary>
public string GetExceptionBackTrace()
{
System.Text.StringBuilder builder = new System.Text.StringBuilder();
R_VAL exc = RubyDLL.mrb_get_exc_value(rb_state);
if (!RubyDLL.mrb_exception_p(exc))
{
return(string.Empty);
}
R_VAL backtrace = RubyDLL.r_exc_backtrace(rb_state, exc);
builder.AppendLine(RubyDLL.r_funcall(rb_state, exc, "inspect", 0).ToString(rb_state));
builder.AppendLine("trace:");
for (var i = 0; i < RubyDLL.r_funcall(rb_state, backtrace, "size", 0); ++i)
{
R_VAL v = RubyDLL.r_ary_ref(rb_state, backtrace, i);
builder.AppendLine($" [{i}] {v.ToString ( rb_state )}");
}
return(builder.ToString());
// R_VAL exc = RubyDLL.rb_errinfo ();
// R_VAL backtrace = RubyDLL.r_exc_backtrace ( exc );
//
// builder.AppendLine ( RubyDLL.r_inspect ( exc ).ToString () );
//
// builder.AppendLine ( "trace:" );
// for ( var i = 0; i < RubyDLL.r_funcall ( backtrace, R_VAL.Create ( "size" ), 0 ); ++i ) {
// R_VAL v = RubyDLL.r_ary_ref ( backtrace, R_VAL.Create ( i ) );
// builder.AppendLine ( $" [{i}] {v.ToString ()}" );
// }
//
// return builder.ToString ();
}
