Add a builder for >=1.24 with GOEXPERIMENT=aliastypeparams=1 for additional test coverage (#46477). aliastypeparams was introduced in 1.23. Its default is currently off. For the 1.24 release, we want to flip this to default to on.
For packages that use go/types, this also requires GODEBUG=gotypesalias=1. This includes x/tools.
We do not expect <= 1.23 to fully work with type parameterized aliases. (1.23 only supported these as a 'preview'.) The builders for #68798 (GODEBUG=gotypesalias=1) are enabled at 1.22 and 1.23. So these configurations are not expected to overlap smoothly.
Comment From: gabyhelp
Related Issues and Documentation
- x/build: add 1.23 and tip builders with GODEBUG=gotypesalias=1 for at least the x/tools repo #68798 (closed)
- go/types, x/tools: help tool authors support the new go/types.Alias node #67263
- x/tools/gopls: handle go1.22's go/types.Alias #64581 (closed)
(Emoji vote if this was helpful or unhelpful; more detailed feedback welcome in this discussion.)
Comment From: gopherbot
Change https://go.dev/cl/609375 mentions this issue: main.star: add aliastypeparams builders
Comment From: gopherbot
Change https://go.dev/cl/609735 mentions this issue: main.star: enable aliastypeparams builders on presubmit and postsubmit