+++ /dev/null
-// Copyright 2018 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.
-
-package gcimporter
-
-import (
- "go/types"
- "runtime"
- "strings"
- "testing"
-
- "golang.org/x/tools/internal/testenv"
-)
-
-var importedObjectTests = []struct {
- name string
- want string
-}{
- // non-interfaces
- {"crypto.Hash", "type Hash uint"},
- {"go/ast.ObjKind", "type ObjKind int"},
- {"go/types.Qualifier", "type Qualifier func(*Package) string"},
- {"go/types.Comparable", "func Comparable(T Type) bool"},
- {"math.Pi", "const Pi untyped float"},
- {"math.Sin", "func Sin(x float64) float64"},
- {"go/ast.NotNilFilter", "func NotNilFilter(_ string, v reflect.Value) bool"},
- {"go/internal/gcimporter.FindPkg", "func FindPkg(path string, srcDir string) (filename string, id string)"},
-
- // interfaces
- {"context.Context", "type Context interface{Deadline() (deadline time.Time, ok bool); Done() <-chan struct{}; Err() error; Value(key interface{}) interface{}}"},
- {"crypto.Decrypter", "type Decrypter interface{Decrypt(rand io.Reader, msg []byte, opts DecrypterOpts) (plaintext []byte, err error); Public() PublicKey}"},
- {"encoding.BinaryMarshaler", "type BinaryMarshaler interface{MarshalBinary() (data []byte, err error)}"},
- {"io.Reader", "type Reader interface{Read(p []byte) (n int, err error)}"},
- {"io.ReadWriter", "type ReadWriter interface{Reader; Writer}"},
- {"go/ast.Node", "type Node interface{End() go/token.Pos; Pos() go/token.Pos}"},
- {"go/types.Type", "type Type interface{String() string; Underlying() Type}"},
-}
-
-func TestImportedTypes(t *testing.T) {
- testenv.NeedsGo1Point(t, 11)
- skipSpecialPlatforms(t)
-
- // This package only handles gc export data.
- if runtime.Compiler != "gc" {
- t.Skipf("gc-built packages not available (compiler = %s)", runtime.Compiler)
- }
-
- for _, test := range importedObjectTests {
- s := strings.Split(test.name, ".")
- if len(s) != 2 {
- t.Fatal("inconsistent test data")
- }
- importPath := s[0]
- objName := s[1]
-
- pkg, err := Import(make(map[string]*types.Package), importPath, ".", nil)
- if err != nil {
- t.Error(err)
- continue
- }
-
- obj := pkg.Scope().Lookup(objName)
- if obj == nil {
- t.Errorf("%s: object not found", test.name)
- continue
- }
-
- got := types.ObjectString(obj, types.RelativeTo(pkg))
- if got != test.want {
- t.Errorf("%s: got %q; want %q", test.name, got, test.want)
- }
-
- if named, _ := obj.Type().(*types.Named); named != nil {
- verifyInterfaceMethodRecvs(t, named, 0)
- }
- }
-}
-
-// verifyInterfaceMethodRecvs verifies that method receiver types
-// are named if the methods belong to a named interface type.
-func verifyInterfaceMethodRecvs(t *testing.T, named *types.Named, level int) {
- // avoid endless recursion in case of an embedding bug that lead to a cycle
- if level > 10 {
- t.Errorf("%s: embeds itself", named)
- return
- }
-
- iface, _ := named.Underlying().(*types.Interface)
- if iface == nil {
- return // not an interface
- }
-
- // check explicitly declared methods
- for i := 0; i < iface.NumExplicitMethods(); i++ {
- m := iface.ExplicitMethod(i)
- recv := m.Type().(*types.Signature).Recv()
- if recv == nil {
- t.Errorf("%s: missing receiver type", m)
- continue
- }
- if recv.Type() != named {
- t.Errorf("%s: got recv type %s; want %s", m, recv.Type(), named)
- }
- }
-
- // check embedded interfaces (if they are named, too)
- for i := 0; i < iface.NumEmbeddeds(); i++ {
- // embedding of interfaces cannot have cycles; recursion will terminate
- if etype, _ := iface.EmbeddedType(i).(*types.Named); etype != nil {
- verifyInterfaceMethodRecvs(t, etype, level+1)
- }
- }
-}
-func TestIssue25301(t *testing.T) {
- testenv.NeedsGo1Point(t, 11)
- skipSpecialPlatforms(t)
-
- // This package only handles gc export data.
- if runtime.Compiler != "gc" {
- t.Skipf("gc-built packages not available (compiler = %s)", runtime.Compiler)
- }
-
- // On windows, we have to set the -D option for the compiler to avoid having a drive
- // letter and an illegal ':' in the import path - just skip it (see also issue #3483).
- if runtime.GOOS == "windows" {
- t.Skip("avoid dealing with relative paths/drive letters on windows")
- }
-
- compileAndImportPkg(t, "issue25301")
-}