mirror of
https://gitea.com/Lydanne/buildx.git
synced 2025-07-12 14:37:08 +08:00
vendor: golang.org/x/exp v0.0.0-20241108190413-2d47ceb2692f
full diff: 701f63a606...2d47ceb269
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
2
vendor/golang.org/x/tools/internal/aliases/aliases.go
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vendored
2
vendor/golang.org/x/tools/internal/aliases/aliases.go
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@ -28,7 +28,7 @@ import (
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func NewAlias(enabled bool, pos token.Pos, pkg *types.Package, name string, rhs types.Type, tparams []*types.TypeParam) *types.TypeName {
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if enabled {
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tname := types.NewTypeName(pos, pkg, name, nil)
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newAlias(tname, rhs, tparams)
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SetTypeParams(types.NewAlias(tname, rhs), tparams)
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return tname
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}
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if len(tparams) > 0 {
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37
vendor/golang.org/x/tools/internal/aliases/aliases_go121.go
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37
vendor/golang.org/x/tools/internal/aliases/aliases_go121.go
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@ -1,37 +0,0 @@
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// Copyright 2024 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build !go1.22
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// +build !go1.22
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package aliases
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import (
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"go/types"
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)
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// Alias is a placeholder for a go/types.Alias for <=1.21.
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// It will never be created by go/types.
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type Alias struct{}
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func (*Alias) String() string { panic("unreachable") }
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func (*Alias) Underlying() types.Type { panic("unreachable") }
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func (*Alias) Obj() *types.TypeName { panic("unreachable") }
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func Rhs(alias *Alias) types.Type { panic("unreachable") }
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func TypeParams(alias *Alias) *types.TypeParamList { panic("unreachable") }
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func SetTypeParams(alias *Alias, tparams []*types.TypeParam) { panic("unreachable") }
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func TypeArgs(alias *Alias) *types.TypeList { panic("unreachable") }
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func Origin(alias *Alias) *Alias { panic("unreachable") }
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// Unalias returns the type t for go <=1.21.
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func Unalias(t types.Type) types.Type { return t }
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func newAlias(name *types.TypeName, rhs types.Type, tparams []*types.TypeParam) *Alias {
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panic("unreachable")
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}
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// Enabled reports whether [NewAlias] should create [types.Alias] types.
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//
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// Before go1.22, this function always returns false.
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func Enabled() bool { return false }
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32
vendor/golang.org/x/tools/internal/aliases/aliases_go122.go
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32
vendor/golang.org/x/tools/internal/aliases/aliases_go122.go
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@ -2,9 +2,6 @@
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build go1.22
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// +build go1.22
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package aliases
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import (
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@ -14,22 +11,19 @@ import (
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"go/types"
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)
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// Alias is an alias of types.Alias.
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type Alias = types.Alias
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// Rhs returns the type on the right-hand side of the alias declaration.
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func Rhs(alias *Alias) types.Type {
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func Rhs(alias *types.Alias) types.Type {
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if alias, ok := any(alias).(interface{ Rhs() types.Type }); ok {
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return alias.Rhs() // go1.23+
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}
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// go1.22's Alias didn't have the Rhs method,
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// so Unalias is the best we can do.
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return Unalias(alias)
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return types.Unalias(alias)
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}
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// TypeParams returns the type parameter list of the alias.
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func TypeParams(alias *Alias) *types.TypeParamList {
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func TypeParams(alias *types.Alias) *types.TypeParamList {
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if alias, ok := any(alias).(interface{ TypeParams() *types.TypeParamList }); ok {
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return alias.TypeParams() // go1.23+
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}
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@ -37,7 +31,7 @@ func TypeParams(alias *Alias) *types.TypeParamList {
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}
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// SetTypeParams sets the type parameters of the alias type.
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func SetTypeParams(alias *Alias, tparams []*types.TypeParam) {
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func SetTypeParams(alias *types.Alias, tparams []*types.TypeParam) {
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if alias, ok := any(alias).(interface {
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SetTypeParams(tparams []*types.TypeParam)
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}); ok {
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@ -48,7 +42,7 @@ func SetTypeParams(alias *Alias, tparams []*types.TypeParam) {
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}
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// TypeArgs returns the type arguments used to instantiate the Alias type.
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func TypeArgs(alias *Alias) *types.TypeList {
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func TypeArgs(alias *types.Alias) *types.TypeList {
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if alias, ok := any(alias).(interface{ TypeArgs() *types.TypeList }); ok {
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return alias.TypeArgs() // go1.23+
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}
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@ -57,25 +51,13 @@ func TypeArgs(alias *Alias) *types.TypeList {
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// Origin returns the generic Alias type of which alias is an instance.
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// If alias is not an instance of a generic alias, Origin returns alias.
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func Origin(alias *Alias) *Alias {
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func Origin(alias *types.Alias) *types.Alias {
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if alias, ok := any(alias).(interface{ Origin() *types.Alias }); ok {
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return alias.Origin() // go1.23+
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}
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return alias // not an instance of a generic alias (go1.22)
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}
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// Unalias is a wrapper of types.Unalias.
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func Unalias(t types.Type) types.Type { return types.Unalias(t) }
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// newAlias is an internal alias around types.NewAlias.
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// Direct usage is discouraged as the moment.
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// Try to use NewAlias instead.
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func newAlias(tname *types.TypeName, rhs types.Type, tparams []*types.TypeParam) *Alias {
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a := types.NewAlias(tname, rhs)
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SetTypeParams(a, tparams)
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return a
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}
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// Enabled reports whether [NewAlias] should create [types.Alias] types.
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//
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// This function is expensive! Call it sparingly.
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@ -91,7 +73,7 @@ func Enabled() bool {
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// many tests. Therefore any attempt to cache the result
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// is just incorrect.
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fset := token.NewFileSet()
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f, _ := parser.ParseFile(fset, "a.go", "package p; type A = int", 0)
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f, _ := parser.ParseFile(fset, "a.go", "package p; type A = int", parser.SkipObjectResolution)
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pkg, _ := new(types.Config).Check("p", fset, []*ast.File{f}, nil)
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_, enabled := pkg.Scope().Lookup("A").Type().(*types.Alias)
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return enabled
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