LoadError when throwing exception from macro

[andreasnoack]

On

Version 0.7.0-DEV.2675 (2017-11-27 20:28 UTC)
Commit f383276c5b (1 day old master)

I get

julia> macro myerror()
           throw(ErrorException(""))
       end
@myerror (macro with 1 method)

julia> @myerror()
ERROR: LoadError:
Stacktrace:
 [1] @myerror(::LineNumberNode, ::Module) at ./REPL[3]:2
in expression starting at REPL[4]:1

[yuyichao]

AFAICT this is expected. Your error message is empty which is why it doesn't show up

[andreasnoack]

Why does it throw a LoadError? It didn't do that on 0.6?

[yuyichao]

#23533

[andreasnoack]

Thanks. Is this

julia> @test_throws ErrorException eval(:(@myerror()))
Test Failed at REPL[26]:1
  Expression: eval($(Expr(:quote, :(#= REPL[26]:1 =# @myerror))))
    Expected: ErrorException
      Thrown: LoadError
ERROR: There was an error during testing

then an issue with @test_throws? I noticed that I can catch the evaled version and not the non-evaled, i.e.

julia> try eval(:(@myerror()))
       catch
       end

julia> try @myerror()
       catch
       end
ERROR: LoadError: 
Stacktrace:
 [1] @myerror(::LineNumberNode, ::Module) at ./REPL[12]:2
in expression starting at REPL[30]:1

The LoadError is also a bit unintuitive given the documentation which states that

An error occurred while includeing, requireing, or using a file. The error specifics should be
available in the .error field.

and I'm probably not the only user for whom it is not obivous where to look for the include, require, or using.