I have an example of nesting macros that makes me think I’m confused about how hygiene works. Here’s a minimal example: macro inner(e) println("In @inner") dump(e) @assert isa(e, Expr) && e.head == :$ esc(e.args[1]) end macro outer(e) println("In @outer") dump(e) quote…

You do need some escaping at each level, @outer2 and @outer3 are different ways you might think to do it. But @outer3 doesn’t work, because it passes @inner an expression which doesn’t have the $ nakedly visible. There is a helpful issue about this: https://github.com/JuliaLang/julia/issues/37691 . …

Nested macros and esc

General Usage

cstjean October 6, 2020, 2:40pm 16

We already had that conversation Looking for good macro examples - #9 by cstjean

Is it unclear?

1 Like

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Nested macros and esc

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