OXIESEC PANEL

Name	Size	Modified	Perms
📁 ..	-	12/01/2022 06:13:56 PM	rwxr-xr-x
📄 api.go	17.05 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 api_test.go	81.16 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 array.go	802 bytes	12/01/2022 06:12:58 PM	rw-r--r--
📄 assignments.go	12.86 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 basic.go	1.48 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 builtins.go	24.28 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 builtins_test.go	9.7 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 call.go	22.29 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 chan.go	909 bytes	12/01/2022 06:12:58 PM	rw-r--r--
📄 check.go	17.32 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 check_test.go	12.11 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 context.go	4.34 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 context_test.go	2.33 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 conversions.go	8.28 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 decl.go	28.77 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 errorcodes.go	31.51 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 errorcodes_test.go	4.95 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 errors.go	9.87 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 errors_test.go	1 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 eval.go	3.05 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 eval_test.go	7.4 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 example_test.go	9.03 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 expr.go	51.97 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 exprstring.go	4.81 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 exprstring_test.go	2.36 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 gccgosizes.go	1.02 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 gotype.go	8.33 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 hilbert_test.go	3.61 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 index.go	11.03 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 infer.go	25.18 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 initorder.go	9.48 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 instantiate.go	9.94 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 instantiate_test.go	6.02 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 interface.go	8.08 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 issues_test.go	17.49 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 labels.go	7.17 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 lookup.go	16.93 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 main_test.go	335 bytes	12/01/2022 06:12:58 PM	rw-r--r--
📄 map.go	658 bytes	12/01/2022 06:12:58 PM	rw-r--r--
📄 methodset.go	6.75 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 methodset_test.go	5.75 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 mono.go	9.05 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 mono_test.go	2.63 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 named.go	22.37 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 named_test.go	2.69 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 object.go	17.92 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 object_test.go	5.21 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 objset.go	927 bytes	12/01/2022 06:12:58 PM	rw-r--r--
📄 operand.go	10 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 package.go	2.38 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 pointer.go	634 bytes	12/01/2022 06:12:58 PM	rw-r--r--
📄 predicates.go	14.71 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 resolver.go	24.38 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 resolver_test.go	4.58 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 return.go	4.21 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 scope.go	9.33 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 selection.go	3.99 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 self_test.go	2.57 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 signature.go	12.49 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 sizeof_test.go	1.26 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 sizes.go	7.56 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 sizes_test.go	3.33 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 slice.go	576 bytes	12/01/2022 06:12:58 PM	rw-r--r--
📄 stdlib_test.go	9.45 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 stmt.go	26.17 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 struct.go	6.04 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 subst.go	10.76 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 termlist.go	3.68 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 termlist_test.go	7.18 KB	12/01/2022 06:12:58 PM	rw-r--r--
📁 testdata	-	12/01/2022 06:13:56 PM	rwxr-xr-x
📄 token_test.go	1.21 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 tuple.go	928 bytes	12/01/2022 06:12:58 PM	rw-r--r--
📄 type.go	2.92 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 typelists.go	1.84 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 typeparam.go	4.74 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 typeset.go	14.22 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 typeset_test.go	2.34 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 typestring.go	10.64 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 typestring_test.go	4.21 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 typeterm.go	3.52 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 typeterm_test.go	5.1 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 typexpr.go	14.64 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 unify.go	18.35 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 union.go	6.22 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 universe.go	7.66 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 validtype.go	7.77 KB	12/01/2022 06:12:58 PM	rw-r--r--
📄 version.go	2.2 KB	12/01/2022 06:12:58 PM	rw-r--r--

Editing: instantiate_test.go

// 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.

package types_test

import (
	"go/token"
	. "go/types"
	"strings"
	"testing"
)

func TestInstantiateEquality(t *testing.T) {
	emptySignature := NewSignatureType(nil, nil, nil, nil, nil, false)
	tests := []struct {
		src       string
		name1     string
		targs1    []Type
		name2     string
		targs2    []Type
		wantEqual bool
	}{
		{
			"package basictype; type T[P any] int",
			"T", []Type{Typ[Int]},
			"T", []Type{Typ[Int]},
			true,
		},
		{
			"package differenttypeargs; type T[P any] int",
			"T", []Type{Typ[Int]},
			"T", []Type{Typ[String]},
			false,
		},
		{
			"package typeslice; type T[P any] int",
			"T", []Type{NewSlice(Typ[Int])},
			"T", []Type{NewSlice(Typ[Int])},
			true,
		},
		{
			// interface{interface{...}} is equivalent to interface{...}
			"package equivalentinterfaces; type T[P any] int",
			"T", []Type{
				NewInterfaceType([]*Func{NewFunc(token.NoPos, nil, "M", emptySignature)}, nil),
			},
			"T", []Type{
				NewInterfaceType(
					nil,
					[]Type{
						NewInterfaceType([]*Func{NewFunc(token.NoPos, nil, "M", emptySignature)}, nil),
					},
				),
			},
			true,
		},
		{
			// int|string is equivalent to string|int
			"package equivalenttypesets; type T[P any] int",
			"T", []Type{
				NewInterfaceType(nil, []Type{
					NewUnion([]*Term{NewTerm(false, Typ[Int]), NewTerm(false, Typ[String])}),
				}),
			},
			"T", []Type{
				NewInterfaceType(nil, []Type{
					NewUnion([]*Term{NewTerm(false, Typ[String]), NewTerm(false, Typ[Int])}),
				}),
			},
			true,
		},
		{
			"package basicfunc; func F[P any]() {}",
			"F", []Type{Typ[Int]},
			"F", []Type{Typ[Int]},
			true,
		},
		{
			"package funcslice; func F[P any]() {}",
			"F", []Type{NewSlice(Typ[Int])},
			"F", []Type{NewSlice(Typ[Int])},
			true,
		},
		{
			"package funcwithparams; func F[P any](x string) float64 { return 0 }",
			"F", []Type{Typ[Int]},
			"F", []Type{Typ[Int]},
			true,
		},
		{
			"package differentfuncargs; func F[P any](x string) float64 { return 0 }",
			"F", []Type{Typ[Int]},
			"F", []Type{Typ[String]},
			false,
		},
		{
			"package funcequality; func F1[P any](x int) {}; func F2[Q any](x int) {}",
			"F1", []Type{Typ[Int]},
			"F2", []Type{Typ[Int]},
			false,
		},
		{
			"package funcsymmetry; func F1[P any](x P) {}; func F2[Q any](x Q) {}",
			"F1", []Type{Typ[Int]},
			"F2", []Type{Typ[Int]},
			false,
		},
	}

for _, test := range tests {
		pkg, err := pkgForMode(".", test.src, nil, 0)
		if err != nil {
			t.Fatal(err)
		}

t.Run(pkg.Name(), func(t *testing.T) {
			ctxt := NewContext()

T1 := pkg.Scope().Lookup(test.name1).Type()
			res1, err := Instantiate(ctxt, T1, test.targs1, false)
			if err != nil {
				t.Fatal(err)
			}

T2 := pkg.Scope().Lookup(test.name2).Type()
			res2, err := Instantiate(ctxt, T2, test.targs2, false)
			if err != nil {
				t.Fatal(err)
			}

if gotEqual := res1 == res2; gotEqual != test.wantEqual {
				t.Errorf("%s == %s: %t, want %t", res1, res2, gotEqual, test.wantEqual)
			}
		})
	}
}

func TestInstantiateNonEquality(t *testing.T) {
	const src = "package p; type T[P any] int"

pkg1, err := pkgForMode(".", src, nil, 0)
	if err != nil {
		t.Fatal(err)
	}
	pkg2, err := pkgForMode(".", src, nil, 0)
	if err != nil {
		t.Fatal(err)
	}

// We consider T1 and T2 to be distinct types, so their instances should not
	// be deduplicated by the context.
	T1 := pkg1.Scope().Lookup("T").Type().(*Named)
	T2 := pkg2.Scope().Lookup("T").Type().(*Named)

ctxt := NewContext()
	res1, err := Instantiate(ctxt, T1, []Type{Typ[Int]}, false)
	if err != nil {
		t.Fatal(err)
	}
	res2, err := Instantiate(ctxt, T2, []Type{Typ[Int]}, false)
	if err != nil {
		t.Fatal(err)
	}

if res1 == res2 {
		t.Errorf("instance from pkg1 (%s) is pointer-equivalent to instance from pkg2 (%s)", res1, res2)
	}
	if Identical(res1, res2) {
		t.Errorf("instance from pkg1 (%s) is identical to instance from pkg2 (%s)", res1, res2)
	}
}

func TestMethodInstantiation(t *testing.T) {
	const prefix = `package p

type T[P any] struct{}

var X T[int]

`
	tests := []struct {
		decl string
		want string
	}{
		{"func (r T[P]) m() P", "func (T[int]).m() int"},
		{"func (r T[P]) m(P)", "func (T[int]).m(int)"},
		{"func (r *T[P]) m(P)", "func (*T[int]).m(int)"},
		{"func (r T[P]) m() T[P]", "func (T[int]).m() T[int]"},
		{"func (r T[P]) m(T[P])", "func (T[int]).m(T[int])"},
		{"func (r T[P]) m(T[P], P, string)", "func (T[int]).m(T[int], int, string)"},
		{"func (r T[P]) m(T[P], T[string], T[int])", "func (T[int]).m(T[int], T[string], T[int])"},
	}

for _, test := range tests {
		src := prefix + test.decl
		pkg, err := pkgForMode(".", src, nil, 0)
		if err != nil {
			t.Fatal(err)
		}
		typ := NewPointer(pkg.Scope().Lookup("X").Type())
		obj, _, _ := LookupFieldOrMethod(typ, false, pkg, "m")
		m, _ := obj.(*Func)
		if m == nil {
			t.Fatalf(`LookupFieldOrMethod(%s, "m") = %v, want func m`, typ, obj)
		}
		if got := ObjectString(m, RelativeTo(pkg)); got != test.want {
			t.Errorf("instantiated %q, want %q", got, test.want)
		}
	}
}

func TestImmutableSignatures(t *testing.T) {
	const src = `package p

type T[P any] struct{}

func (T[P]) m() {}

var _ T[int]
`
	pkg, err := pkgForMode(".", src, nil, 0)
	if err != nil {
		t.Fatal(err)
	}
	typ := pkg.Scope().Lookup("T").Type().(*Named)
	obj, _, _ := LookupFieldOrMethod(typ, false, pkg, "m")
	if obj == nil {
		t.Fatalf(`LookupFieldOrMethod(%s, "m") = %v, want func m`, typ, obj)
	}

// Verify that the original method is not mutated by instantiating T (this
	// bug manifested when subst did not return a new signature).
	want := "func (T[P]).m()"
	if got := stripAnnotations(ObjectString(obj, RelativeTo(pkg))); got != want {
		t.Errorf("instantiated %q, want %q", got, want)
	}
}

// Copied from errors.go.
func stripAnnotations(s string) string {
	var b strings.Builder
	for _, r := range s {
		// strip #'s and subscript digits
		if r < '₀' || '₀'+10 <= r { // '₀' == U+2080
			b.WriteRune(r)
		}
	}
	if b.Len() < len(s) {
		return b.String()
	}
	return s
}