On Fri, Nov 11 2016, Angel de Vicente wrote:
> Tamas Papp <[email protected]> writes:
>>> But return will only quit the current function and return execution to
>>> the caller. Coming from Fortran, I also miss something like STOP, which
>>> will stop all execution and return me to the REPL.
>>
>> I hear you --- I miss RETURN-FROM from Common Lisp.
>>
>> Simply throwing an error will stop execution and return to the REPL
>> though.
>
> Yes, I was using that, but it is not very clean. It gives the wrong
> impression that an error happened (which in many cases it is probably
> true, but not always) plus it prints the call stack at the point of the
> error. If error() could be told to be silent, it would be almost
> perfect. Anyway, a minor thing.
immutable Stop <: Exception end
function run_task(f)
try f()
catch e
if isa(e, Stop)
println("Your program was gracefully terminated.")
else
rethrow()
end
end
end
function f()
throw(Stop())
end
function g()
f()
end
julia> run_task() do
g()
end
Your program was gracefully terminated.
julia> run_task() do
error("This is bad.")
end
ERROR: This is bad.
in run_task(::##84#85) at ./REPL[167]:2
