REPL: fix #27184, ensure macro existence before lowering #40621
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simeonschaub
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bugfix
aviatesk
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Apr 27, 2021
| @@ -384,6 +384,7 @@ function get_value(sym::Expr, fn) | |||
| end | |||
| get_value(sym::Symbol, fn) = isdefined(fn, sym) ? (getfield(fn, sym), true) : (nothing, false) | |||
| get_value(sym::QuoteNode, fn) = isdefined(fn, sym.value) ? (getfield(fn, sym.value), true) : (nothing, false) | |||
| get_value(sym::GlobalRef, fn) = get_value(sym.name, sym.mod) | |||
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I added this method because Core.@cmd macro will be lowered with GlobalRef, but this one looks a bit weird since it totally ignores the context fn.
Maybe special-casing it inside isexpr(sym, :macrocall) block within get_type looks better ?
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This seems like the correct thing to do to me. Of course, we would expect all GlobalRefs emitted by the parser to actually exist, but I don't think being more defensive here hurts.
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okay, then I will leave this as is.
simeonschaub
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