This gets me quite far - thanks a lot! However, to make it work, I have to
hard-code the value of datafile, since I can’t figure out how to get the
macro to create the string "$datafile.jld" correctly. This is probably OK
for my use case - I only have two datafiles, so I can create two macros :P
But it would be nice to learn how to do it, if it’s possible.
Basically, is there a way to make the following work?
@macro foo(bar)
esc(quote
"$bar.baz"
end)
end
Currently @foo("fizz") is just the string literal "$bar.baz".
// T
On Thursday, June 26, 2014 9:25:18 PM UTC+2, Mauro wrote:
Maybe something like this should work:
>
> julia> macro A()
> esc(quote
> a=5
> b=7
> end)
> end
>
> julia> function f(x)
> @A
> x+a+b
> end
> f (generic function with 1 method)
>
> julia> f(5)
> 17
>
> If you don't want your variable names to be mangled then do the `esc`.
>
> So, basically just write normal code in the `esc(quote ... end)` bit.
>
> On Thu, 2014-06-26 at 19:21, [email protected] <javascript:> wrote:
> > That explains it, thanks.
> >
> > In my actual problem, what I wanted to do in the included file was
> > something like this:
> >
> > ```
> > sall,sloops,slost,Nbins,psibins,initialhist,finalhist,vols =
> > jldopen("$datafile.jld") do f
> > read(f, "sall"),
> > read(f, "sloops"),
> > read(f, "sloss"),
> > read(f, "Nbins"),
> > read(f, "psibins"),
> > read(f, "initialhist"),
> > read(f, "finalhist"),
> > read(f, "vols")
> > end
> > ```
> >
> > where `datafile` is the variable defined in the function. In other
> words,
> > including the file would define and assign to all those variables. Is it
> > maybe possible to write a macro that does this?
> >
> > // T
> >
> > On Thursday, June 26, 2014 8:17:29 PM UTC+2, Simon Kornblith wrote:
> >>
> >> include evaluates at top-level, so this would only work if foo were a
> >> global variable. It not possible to include in a function context for
> the
> >> same reason it is not possible to eval in a function context.
> >>
> >> Simon
> >>
> >> On Thursday, June 26, 2014 1:03:00 PM UTC-4, Tomas Lycken wrote:
> >>>
> >>> I have the following two files:
> >>>
> >>> *includetest1.jl*:
> >>>
> >>> module IncludeTest
> >>>
> >>> function testinclude()
> >>> foo = "foo"
> >>> println(foo)
> >>> include("includetest2.jl")
> >>> end
> >>>
> >>> end
> >>>
> >>> *includetest2.jl*
> >>>
> >>> println(foo)
> >>>
> >>> If I now try to execute this the function from the REPL, I get errors
> >>> stating that foo is not defined:
> >>>
> >>> julia> include("includetest1.jl")
> >>>
> >>> julia> IncludeTest.testinclude()
> >>> foo
> >>> ERROR: foo not defined
> >>> in include at boot.jl:244
> >>> while loading [...]/includetest2.jl, in expression starting on line 1
> >>>
> >>> I thought include was supposed to just insert the contents of the file
> >>> in whatever context you’re in? If include is not the way to do this,
> is
> >>> there another?
> >>>
> >>> For completeness:
> >>>
> >>>
> >>> julia> versioninfo()
> >>> Julia Version 0.3.0-prerelease+3884
> >>> Commit 3e6a6c7* (2014-06-25 10:41 UTC)
> >>> Platform Info:
> >>> System: Linux (x86_64-linux-gnu)
> >>> CPU: Intel(R) Core(TM) i7-2630QM CPU @ 2.00GHz
> >>> WORD_SIZE: 64
> >>> BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY)
> >>> LAPACK: libopenblas
> >>> LIBM: libopenlibm
> >>>
> >>> // T
> >>>
> >>>
> >>
>
> --
>
>
