tree 1abc818f3f3c2135b6214daf2130d97d529c4ede
parent 165c1c05ffb5c38cda56c5fafc3951cc57b1210c
author Ben Clayton <bclayton@google.com> 1699573473 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1699573473 +0000

[tint][resolver] Fix dual source blending validation

The check for an entry point using a non-zero @location and non-zero
@index would only fire if the non-zero index came after the @location.

This now only validates on the entry point (as opposed to a standalone
struct), but given that this is non-spec'd this seems fine.

Rework the validation, and change the diagnostic message to be clearer
about what you did wrong.

Change-Id: I3e35b316814cb149c1f8f77f59e236463d87b2aa
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/160082
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>