Staticcheck 2024.1 contains the following backwards incompatible changes:
The keyify utility has been removed. The recommended alternative is gopls.
staticcheck -merge now exits with a non-zero status if any problems have been found.
Improved Go 1.22 support
This release updates Staticcheck’s database of deprecated standard library APIs to cover the Go 1.22 release. Furthermore, checks have been updated to correctly handle the new “for” loop variable scoping behavior as well as ranging over integers.
Added Go 1.23 support
Staticcheck 2024.1 has full support for iterators / range-over-func. Furthermore, SA1015 will skip any code targeting Go 1.23 or newer, as it is now possible to use time.Tick without leaking memory.
Improved handling of Go versions
Go 1.21 more rigorously defined the meaning of the go directive in go.mod files, as well as its interactions with //go:build go1.N build constraints. The go directive now specifies a minimum Go version for the module. Furthermore, it sets the language version that is in effect, which may change the semantics of Go code. For example, before Go 1.22, loop variables were reused across iterations, but since Go 1.22, loop variables only exist for the duration of an iteration. Modules that specify go 1.22 will use the new semantics, while modules that specify an older version will not.
Individual files can both upgrade and downgrade their language version by using //go:build go1.N directives. In a module that requires Go 1.22, a file specifying Go 1.21 will experience the old loop variable semantics, and vice versa. Because the Go module as a whole still specifies a minimum version, even files specifying an older version will have access to the standard library of the minimum version.
Staticcheck 2024.1 takes all of this into consideration when analyzing the behavior of Go code, when determining which checks are applicable, and when making suggestions. Older versions of Staticcheck were already aware of Go versions, but 2024.1 works on a more fine-grained, per-file basis, and differentiates between the pre- and post-1.21 semantics of the go directive.
The -go command line flag continues to exist. It will override any module-based version selection. This is primarily useful for Go modules that target older Go versions (because here, the go directive didn’t specify a minimum version), or when working outside of Go modules.
To prevent misinterpreting code, Staticcheck now refuses to analyze modules that require a version of Go that is newer than that with which Staticcheck was built.
Checks
New checks
The following checks have been added:
SA1031 flags overlapping destination and source slices passed to certain encoding functions.
SA1032 flags calls to errors.Is where the two arguments have been swapped.
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Bumps honnef.co/go/tools from 0.4.7 to 0.5.0.
Release notes
Sourced from honnef.co/go/tools's releases.
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Commits
d6ea187
Version 2024.1f2c1fda
website: finalize 2024.1 release notesdcae6e2
lintcmd: file names are optional in error positions2cef146
lintcmd: panic with the right message when we can't parse a position0636bca
go/ir: actually build blank functions34db56d
Version 2024.1rc1 (v0.5.0-rc.1)b36ec99
config: update example config5177218
website: add 2024.1 release notesb3bd325
Add back "-go" flag1fc8b1b
website: don't check default config into git anymoreDependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
@dependabot rebase
.Dependabot commands and options
You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot show