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thepudds d3070a767b cmd/compile/internal/types2: more consistently print "check go.mod" if language version < 1.18 
If you attempt to instantiate a generic type or func and run 'go build'
with a language version < 1.18 in the 'go' directive inside the go.mod
file, cmd/compile emits a friendly message that includes the suggestion
to 'check go.mod':

    type instantiation requires go1.18 or later (-lang was set to go1.17; check go.mod)

However, if the code instead only declares a generic type or func
without instantiating, cmd/compile currently emits a less friendly
message:

    type parameters require go1.18 or later

With this CL, the error in that situation becomes:

    type parameter requires go1.18 or later (-lang was set to go1.17; check go.mod)

Within cmd/compile/internal/types2, it already calls check.versionErrorf
in a dozen or so places, including three existing calls to
check.versionErrorf within typeset.go (e.g., for embedding a constraint
interface).

This CL adds two more calls to check.versionErrorf, replacing calls to
check.softErrorf. Both check.versionErrorf and check.softErrorf call
check.err(at, <string>, true) after massaging the string message.

Fixes #51531

Change-Id: If54e179f5952b97701d1dfde4abb08101de07811
GitHub-Last-Rev: b0b7c1346f
GitHub-Pull-Request: golang/go#51536
Reviewed-on: https://go-review.googlesource.com/c/go/+/390578
Reviewed-by: Robert Griesemer <gri@golang.org>
Trust: Robert Findley <rfindley@google.com>
 		2022-03-08 16:50:57 +00:00
.github .github: remove duplicate security link 2022-01-07 17:55:09 +00:00
api api: update next.txt for binary.AppendByteOrder interface 2022-03-03 17:04:24 +00:00
doc spec: document that type inference doesn't apply to generic types 2022-03-08 02:22:37 +00:00
lib/time lib/time, time/tzdata: update to 2021e 2021-11-11 05:16:39 +00:00
misc all: fix typos 2022-02-28 21:52:59 +00:00
src cmd/compile/internal/types2: more consistently print "check go.mod" if language version < 1.18 2022-03-08 16:50:57 +00:00
test cmd/compile/internal/types2: more consistently print "check go.mod" if language version < 1.18 2022-03-08 16:50:57 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: add Bharath Kumar Uppala (individual CLA) 2021-11-29 00:57:09 +00:00
CONTRIBUTING.md
…
CONTRIBUTORS CONTRIBUTORS: update for the Go 1.18 release 2022-02-28 15:43:07 +00:00
LICENSE
…
PATENTS
…
README.md README.md: update contribute URL 2021-09-30 13:33:21 +00:00
SECURITY.md
…
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +00:00

README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

Gopher image Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.

Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.

Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

Download and Install

Binary Distributions

Official binary distributions are available at https://golang.org/dl/.

After downloading a binary release, visit https://golang.org/doc/install for installation instructions.

Install From Source

If a binary distribution is not available for your combination of operating system and architecture, visit https://golang.org/doc/install/source for source installation instructions.

Contributing

Go is the work of thousands of contributors. We appreciate your help!

To contribute, please read the contribution guidelines at https://golang.org/doc/contribute.

Note that the Go project uses the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.