TIR: Add Map and Visit traits to the tir::Visitor in order to reduce code duplication
#984
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kontheocharis
added
type-system
feds01
previously approved these changes
Sep 18, 2023
feds01
approved these changes
Sep 18, 2023
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Instead of having
fmap_*andvisit_*functions for each TIR node, this PR replaces those with implementations ofVisit<*>andMap<*>, so that functions can be implemented for anyTthat hasMap<T>orVisit<T>. This reduces a lot of duplication in TC substitutions, and allows specialised functions to be created generically, for example to copy nodes, or to visit infallibly.