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authorThomas Voss <mail@thomasvoss.com> 2025-06-06 02:49:26 +0200
committerThomas Voss <mail@thomasvoss.com> 2025-06-06 02:49:26 +0200
commit746a09a5854b9ce17e40caead51e1a42c2721bb1 (patch)
tree474d9a11c3b82196577b61333dffe3c94c5258fb /vendor/golang.org/x/tools/internal/aliases/aliases_go122.go
parentefa0bd7df5f51d47c50efc446fd2f32996ab79be (diff)
Unvendor dependencies
Diffstat (limited to 'vendor/golang.org/x/tools/internal/aliases/aliases_go122.go')
-rw-r--r--vendor/golang.org/x/tools/internal/aliases/aliases_go122.go99
1 files changed, 0 insertions, 99 deletions
diff --git a/vendor/golang.org/x/tools/internal/aliases/aliases_go122.go b/vendor/golang.org/x/tools/internal/aliases/aliases_go122.go
deleted file mode 100644
index 3ef1afe..0000000
--- a/vendor/golang.org/x/tools/internal/aliases/aliases_go122.go
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright 2024 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build go1.22
-// +build go1.22
-
-package aliases
-
-import (
- "go/ast"
- "go/parser"
- "go/token"
- "go/types"
-)
-
-// Alias is an alias of types.Alias.
-type Alias = types.Alias
-
-// Rhs returns the type on the right-hand side of the alias declaration.
-func Rhs(alias *Alias) types.Type {
- if alias, ok := any(alias).(interface{ Rhs() types.Type }); ok {
- return alias.Rhs() // go1.23+
- }
-
- // go1.22's Alias didn't have the Rhs method,
- // so Unalias is the best we can do.
- return Unalias(alias)
-}
-
-// TypeParams returns the type parameter list of the alias.
-func TypeParams(alias *Alias) *types.TypeParamList {
- if alias, ok := any(alias).(interface{ TypeParams() *types.TypeParamList }); ok {
- return alias.TypeParams() // go1.23+
- }
- return nil
-}
-
-// SetTypeParams sets the type parameters of the alias type.
-func SetTypeParams(alias *Alias, tparams []*types.TypeParam) {
- if alias, ok := any(alias).(interface {
- SetTypeParams(tparams []*types.TypeParam)
- }); ok {
- alias.SetTypeParams(tparams) // go1.23+
- } else if len(tparams) > 0 {
- panic("cannot set type parameters of an Alias type in go1.22")
- }
-}
-
-// TypeArgs returns the type arguments used to instantiate the Alias type.
-func TypeArgs(alias *Alias) *types.TypeList {
- if alias, ok := any(alias).(interface{ TypeArgs() *types.TypeList }); ok {
- return alias.TypeArgs() // go1.23+
- }
- return nil // empty (go1.22)
-}
-
-// Origin returns the generic Alias type of which alias is an instance.
-// If alias is not an instance of a generic alias, Origin returns alias.
-func Origin(alias *Alias) *Alias {
- if alias, ok := any(alias).(interface{ Origin() *types.Alias }); ok {
- return alias.Origin() // go1.23+
- }
- return alias // not an instance of a generic alias (go1.22)
-}
-
-// Unalias is a wrapper of types.Unalias.
-func Unalias(t types.Type) types.Type { return types.Unalias(t) }
-
-// newAlias is an internal alias around types.NewAlias.
-// Direct usage is discouraged as the moment.
-// Try to use NewAlias instead.
-func newAlias(tname *types.TypeName, rhs types.Type) *Alias {
- a := types.NewAlias(tname, rhs)
- // TODO(go.dev/issue/65455): Remove kludgy workaround to set a.actual as a side-effect.
- Unalias(a)
- return a
-}
-
-// Enabled reports whether [NewAlias] should create [types.Alias] types.
-//
-// This function is expensive! Call it sparingly.
-func Enabled() bool {
- // The only reliable way to compute the answer is to invoke go/types.
- // We don't parse the GODEBUG environment variable, because
- // (a) it's tricky to do so in a manner that is consistent
- // with the godebug package; in particular, a simple
- // substring check is not good enough. The value is a
- // rightmost-wins list of options. But more importantly:
- // (b) it is impossible to detect changes to the effective
- // setting caused by os.Setenv("GODEBUG"), as happens in
- // many tests. Therefore any attempt to cache the result
- // is just incorrect.
- fset := token.NewFileSet()
- f, _ := parser.ParseFile(fset, "a.go", "package p; type A = int", 0)
- pkg, _ := new(types.Config).Check("p", fset, []*ast.File{f}, nil)
- _, enabled := pkg.Scope().Lookup("A").Type().(*types.Alias)
- return enabled
-}