tree ea08d6928816b1c55b61507ad8c8bcfdfdcae8d3
parent a85238c09bc8df3050dd3bd0ec04458133caf9d9
author Marcel van Lohuizen <mpvl@golang.org> 1586952691 +0200
committer Marcel van Lohuizen <mpvl@google.com> 1587581484 +0000

cue: introduce let declaration

This only implements let as a top-level declaration;
it does not yet implement let expressions in
comprehensions.

This is the first step to deprecate aliases of the form `X=foo`
The meaning of `=` is different in all other cases and is
confusing. Also, after some time of deprecating the old
aliases, it can be reintroduced as an alias for embedding.

This change does not yet do the automated rewriting.

Issue #339

Change-Id: Iaf6f9bf09e1bef7e18c35b776e7d415f526a02cc
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/5684
Reviewed-by: Marcel van Lohuizen <mpvl@google.com>