tree 8ddc47cd95431dc7a1cdc3ff09e14ac794e61c9c
parent 6661b28d1e0fa7654c51037dc4e1137df13b8e55
author Ben Clayton <bclayton@google.com> 1645820682 +0000
committer Tint LUCI CQ <tint-scoped@luci-project-accounts.iam.gserviceaccount.com> 1645820682 +0000

castable: Make Switch() smarter about return types

Infer the return type by finding the common type across all cases.
Types that derive from CastableBase will automatically infer to
the common base class.

Change-Id: I2112ca1abae34e55396685e9ebf2da12f8a6e3fc
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/80320
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>