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[dev.typeparams] go/internal/typeparams: remove the Enabled guard
Type parameters are now always enabled. Users should guard against type checking generic code by using the types.Config.GoVersion field. This cleans up some differences with types2. Change-Id: Ie3e35a549e456a90a10d6a7e158ff58653cc1394 Reviewed-on: https://go-review.googlesource.com/c/go/+/335033 Trust: Robert Findley <rfindley@google.com> Run-TryBot: Robert Findley <rfindley@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
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@ -10,8 +10,6 @@ import (
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"go/token"
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)
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const Enabled = true
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func PackIndexExpr(x ast.Expr, lbrack token.Pos, exprs []ast.Expr, rbrack token.Pos) ast.Expr {
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switch len(exprs) {
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case 0:
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@ -189,11 +189,7 @@ func TestErrors(t *testing.T) {
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t.Run(name, func(t *testing.T) {
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if !d.IsDir() && !strings.HasPrefix(name, ".") && (strings.HasSuffix(name, ".src") || strings.HasSuffix(name, ".go2")) {
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mode := DeclarationErrors | AllErrors
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if strings.HasSuffix(name, ".go2") {
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if !typeparams.Enabled {
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return
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}
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} else {
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if !strings.HasSuffix(name, ".go2") {
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mode |= typeparams.DisallowParsing
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}
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checkErrors(t, filepath.Join(testdata, name), nil, mode, true)
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@ -77,7 +77,7 @@ func (p *parser) init(fset *token.FileSet, filename string, src []byte, mode Mod
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}
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func (p *parser) parseTypeParams() bool {
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return typeparams.Enabled && p.mode&typeparams.DisallowParsing == 0
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return p.mode&typeparams.DisallowParsing == 0
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}
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// ----------------------------------------------------------------------------
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@ -41,11 +41,7 @@ func TestResolution(t *testing.T) {
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path := filepath.Join(dir, fi.Name())
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src := readFile(path) // panics on failure
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var mode Mode
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if strings.HasSuffix(path, ".go2") {
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if !typeparams.Enabled {
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t.Skip("type params are not enabled")
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}
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} else {
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if !strings.HasSuffix(path, ".go2") {
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mode |= typeparams.DisallowParsing
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}
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file, err := ParseFile(fset, path, src, mode)
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@ -133,9 +133,6 @@ func TestValid(t *testing.T) {
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}
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})
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t.Run("tparams", func(t *testing.T) {
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if !typeparams.Enabled {
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t.Skip("type params are not enabled")
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}
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for _, src := range valids {
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checkErrors(t, src, src, DeclarationErrors|AllErrors, false)
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}
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@ -268,9 +265,6 @@ func TestInvalid(t *testing.T) {
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}
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})
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t.Run("tparams", func(t *testing.T) {
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if !typeparams.Enabled {
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t.Skip("type params are not enabled")
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}
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for _, src := range invalids {
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checkErrors(t, src, src, DeclarationErrors|AllErrors, true)
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}
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@ -10,7 +10,6 @@ import (
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"flag"
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"fmt"
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"go/ast"
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"go/internal/typeparams"
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"go/parser"
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"go/token"
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"io"
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@ -222,9 +221,6 @@ var data = []entry{
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func TestFiles(t *testing.T) {
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t.Parallel()
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for _, e := range data {
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if !typeparams.Enabled && e.mode&allowTypeParams != 0 {
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continue
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}
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source := filepath.Join(dataDir, e.source)
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golden := filepath.Join(dataDir, e.golden)
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mode := e.mode
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@ -353,9 +353,6 @@ func TestTypesInfo(t *testing.T) {
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}
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for _, test := range tests {
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if strings.HasPrefix(test.src, genericPkg) && !typeparams.Enabled {
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continue
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}
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info := Info{Types: make(map[ast.Expr]TypeAndValue)}
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var name string
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if strings.HasPrefix(test.src, broken) {
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@ -534,9 +531,6 @@ func TestDefsInfo(t *testing.T) {
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}
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for _, test := range tests {
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if strings.HasPrefix(test.src, genericPkg) && !typeparams.Enabled {
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continue
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}
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info := Info{
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Defs: make(map[*ast.Ident]Object),
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}
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@ -582,9 +576,6 @@ func TestUsesInfo(t *testing.T) {
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}
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for _, test := range tests {
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if strings.HasPrefix(test.src, genericPkg) && !typeparams.Enabled {
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continue
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}
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info := Info{
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Uses: make(map[*ast.Ident]Object),
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}
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@ -207,10 +207,8 @@ func testFiles(t *testing.T, sizes Sizes, filenames []string, srcs [][]byte, man
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t.Fatal("no source files")
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}
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if strings.HasSuffix(filenames[0], ".go2") && !typeparams.Enabled {
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t.Skip("type params are not enabled")
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}
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if strings.HasSuffix(filenames[0], ".go1") && typeparams.Enabled {
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if strings.HasSuffix(filenames[0], ".go1") {
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// TODO(rfindley): re-enable this test by using GoVersion.
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t.Skip("type params are enabled")
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}
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@ -356,14 +354,6 @@ func TestIndexRepresentability(t *testing.T) {
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testFiles(t, &StdSizes{4, 4}, []string{"index.go"}, [][]byte{[]byte(src)}, false, nil)
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}
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func TestIssue46453(t *testing.T) {
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if typeparams.Enabled {
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t.Skip("type params are enabled")
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}
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const src = "package p\ntype _ comparable // ERROR \"undeclared name: comparable\""
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testFiles(t, nil, []string{"issue46453.go"}, [][]byte{[]byte(src)}, false, nil)
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}
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func TestCheck(t *testing.T) { DefPredeclaredTestFuncs(); testDirFiles(t, "testdata/check", false) }
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func TestExamples(t *testing.T) { testDirFiles(t, "testdata/examples", false) }
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func TestFixedbugs(t *testing.T) { testDirFiles(t, "testdata/fixedbugs", false) }
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@ -7,7 +7,6 @@ package types_test
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import (
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"testing"
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"go/internal/typeparams"
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. "go/types"
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)
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@ -101,9 +100,7 @@ func TestNewMethodSet(t *testing.T) {
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check(src, methods, false)
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}
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if typeparams.Enabled {
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for src, methods := range genericTests {
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check(src, methods, true)
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}
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for src, methods := range genericTests {
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check(src, methods, true)
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}
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}
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@ -263,11 +263,8 @@ func (check *Checker) typInternal(e0 ast.Expr, def *Named) (T Type) {
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case *ast.IndexExpr, *ast.MultiIndexExpr:
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ix := typeparams.UnpackIndexExpr(e)
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if typeparams.Enabled {
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return check.instantiatedType(ix, def)
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}
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check.errorf(e0, _NotAType, "%s is not a type", e0)
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check.use(ix.X)
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// TODO(rfindley): type instantiation should require go1.18
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return check.instantiatedType(ix, def)
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case *ast.ParenExpr:
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// Generic types must be instantiated before they can be used in any form.
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