Macro for optional threading not working

francesco.alemanno · May 30, 2020, 10:55pm

macro optthreads(switch,code)
    :(
    if $(esc(switch))
        esc(:(Threads.@threads $$code))
    else
        $(esc(code))
    end
    )
end

function test(par)
    @optthreads par for i in 1:80
        print(Threads.threadid())
    end
end

test(true)

i cannot seem to figure how to correctly nest a macro inside a macro, can anybody please help?

favba · May 31, 2020, 12:01am

github.com

favba/FluidFlowSimulation.jl/blob/76883d21015c8885bf3b08e45b6efe0818214614/src/macros.jl#L9


      
          macro def(name, definition) # thanks to http://www.stochasticlifestyle.com/type-dispatch-design-post-object-oriented-programming-julia/
              return esc(quote
                  macro $name()
                      esc($(Expr(:quote, definition)))
                  end
              end)
          end
          
          
macro cthreads(condition::Symbol,loop::Expr) #does not work well because of #15276, but seems to work on Julia v0.7
              return esc(quote
                  if $condition
                      Threads.@threads $loop
                  else
                      $loop
                  end
              end)
          end
          
          
macro mthreads(ex)

francesco.alemanno · May 31, 2020, 12:18am

favba:

macro cthreads(condition::Symbol,loop::Expr) #does not work well because of #15276, but seems to work on Julia v0.7
    return esc(quote
        if $condition
            Threads.@threads $loop
        else
            $loop
        end
    end)
end

you sir are the best