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Created by Paolo G. Giarrusso@BlaisorbladeContributor0 of 3 tasks completed0/3 tasks

Choose syntax and implement destructuring existentials with pure components, following !400

It'd be nice to support something like iDestruct "H" as "∃[%x HP]" on "H": ∃ x, P (where the ∃[ipat ipat] syntax is a strawman), mapping that introduction pattern to iExistsDestruct. The killer feature is support for nested existentials, which require multiple iDestruct calls today. In discussion on !400 (merged), I and @tchajed considered supporting that with pattern [%x HP], but that pattern is already mapped to iAndDestruct, and unlike in Coq the two methods are very different.

Steps:

  1. bikeshed a syntax
  2. any other discussion on the specification, if needed
  3. implement this.