Idioms for error handling with contextual information?

[npc1054657282]

What about this pattern?

A derived global "Diagnostics" pattern

Recently, I’m learning the “Diagnostics” pattern through std.tar. I want to use Diagnostics as my structured error handling paradigm. To be honest, I am not fully satisfied with this implementation. I think it has the following problems: 1.Enabling or not enabling Diagnostics will cause changes in control flow other than error handling. When Diagnostics is enabled, some control flows that would have returned immediately due to an error will continue to execute. 2.After enabling Diagnostics, e…