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cmd/cgo: drop pre-1.18 support

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Now that the bootstrap compiler is 1.24, it's no longer needed.

Change-Id: I9b3d6b7176af10fbc580173d50130120b542e7f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/717060
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This commit is contained in:
Ian Lance Taylor 2025-11-01 21:34:53 -07:00 • committed by Gopher Robot
parent dd839f1d00
commit 75b2bb1d1a
3 changed files with 9 additions and 62 deletions
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14
src/cmd/cgo/ast.go
View file

@ -363,7 +363,8 @@ func (f *File) walk(x interface{}, context astContext, visit func(*File, interfa
// everything else just recurs
default:
f.walkUnexpected(x, context, visit)
error_(token.NoPos, "unexpected type %T in walk", x)
panic("unexpected type")
case nil:
@ -396,6 +397,9 @@ func (f *File) walk(x interface{}, context astContext, visit func(*File, interfa
case *ast.IndexExpr:
f.walk(&n.X, ctxExpr, visit)
f.walk(&n.Index, ctxExpr, visit)
case *ast.IndexListExpr:
f.walk(&n.X, ctxExpr, visit)
f.walk(n.Indices, ctxExpr, visit)
case *ast.SliceExpr:
f.walk(&n.X, ctxExpr, visit)
if n.Low != nil {
@ -434,8 +438,8 @@ func (f *File) walk(x interface{}, context astContext, visit func(*File, interfa
case *ast.StructType:
f.walk(n.Fields, ctxField, visit)
case *ast.FuncType:
if tparams := funcTypeTypeParams(n); tparams != nil {
f.walk(tparams, ctxParam, visit)
if n.TypeParams != nil {
f.walk(n.TypeParams, ctxParam, visit)
}
f.walk(n.Params, ctxParam, visit)
if n.Results != nil {
@ -524,8 +528,8 @@ func (f *File) walk(x interface{}, context astContext, visit func(*File, interfa
f.walk(n.Values, ctxExpr, visit)
}
case *ast.TypeSpec:
if tparams := typeSpecTypeParams(n); tparams != nil {
f.walk(tparams, ctxParam, visit)
if n.TypeParams != nil {
f.walk(n.TypeParams, ctxParam, visit)
}
f.walk(&n.Type, ctxType, visit)

25
src/cmd/cgo/ast_go1.go
View file

@ -1,25 +0,0 @@
// Copyright 2021 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 compiler_bootstrap
package main
import (
"go/ast"
"go/token"
)
func (f *File) walkUnexpected(x interface{}, context astContext, visit func(*File, interface{}, astContext)) {
error_(token.NoPos, "unexpected type %T in walk", x)
panic("unexpected type")
}
func funcTypeTypeParams(n *ast.FuncType) *ast.FieldList {
return nil
}
func typeSpecTypeParams(n *ast.TypeSpec) *ast.FieldList {
return nil
}

32
src/cmd/cgo/ast_go118.go
View file

@ -1,32 +0,0 @@
// Copyright 2021 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 !compiler_bootstrap
package main
import (
"go/ast"
"go/token"
)
func (f *File) walkUnexpected(x interface{}, context astContext, visit func(*File, interface{}, astContext)) {
switch n := x.(type) {
default:
error_(token.NoPos, "unexpected type %T in walk", x)
panic("unexpected type")
case *ast.IndexListExpr:
f.walk(&n.X, ctxExpr, visit)
f.walk(n.Indices, ctxExpr, visit)
}
}
func funcTypeTypeParams(n *ast.FuncType) *ast.FieldList {
return n.TypeParams
}
func typeSpecTypeParams(n *ast.TypeSpec) *ast.FieldList {
return n.TypeParams
}