| 1 | // Copyright 2021 The Go Authors. All rights reserved. |
|---|---|
| 2 | // Use of this source code is governed by a BSD-style |
| 3 | // license that can be found in the LICENSE file. |
| 4 | |
| 5 | //go:build go1.17 |
| 6 | // +build go1.17 |
| 7 | |
| 8 | package ssa_test |
| 9 | |
| 10 | import ( |
| 11 | "go/ast" |
| 12 | "go/importer" |
| 13 | "go/parser" |
| 14 | "go/token" |
| 15 | "go/types" |
| 16 | "testing" |
| 17 | |
| 18 | "golang.org/x/tools/go/ssa" |
| 19 | "golang.org/x/tools/go/ssa/ssautil" |
| 20 | ) |
| 21 | |
| 22 | func TestBuildPackageGo117(t *testing.T) { |
| 23 | tests := []struct { |
| 24 | name string |
| 25 | src string |
| 26 | importer types.Importer |
| 27 | }{ |
| 28 | {"slice to array pointer", "package p; var s []byte; var _ = (*[4]byte)(s)", nil}, |
| 29 | {"unsafe slice", `package p; import "unsafe"; var _ = unsafe.Add(nil, 0)`, importer.Default()}, |
| 30 | {"unsafe add", `package p; import "unsafe"; var _ = unsafe.Slice((*int)(nil), 0)`, importer.Default()}, |
| 31 | } |
| 32 | |
| 33 | for _, tc := range tests { |
| 34 | tc := tc |
| 35 | t.Run(tc.name, func(t *testing.T) { |
| 36 | t.Parallel() |
| 37 | fset := token.NewFileSet() |
| 38 | f, err := parser.ParseFile(fset, "p.go", tc.src, parser.ParseComments) |
| 39 | if err != nil { |
| 40 | t.Error(err) |
| 41 | } |
| 42 | files := []*ast.File{f} |
| 43 | |
| 44 | pkg := types.NewPackage("p", "") |
| 45 | conf := &types.Config{Importer: tc.importer} |
| 46 | if _, _, err := ssautil.BuildPackage(conf, fset, pkg, files, ssa.SanityCheckFunctions); err != nil { |
| 47 | t.Errorf("unexpected error: %v", err) |
| 48 | } |
| 49 | }) |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | func TestBuildPackageFailuresGo117(t *testing.T) { |
| 54 | tests := []struct { |
| 55 | name string |
| 56 | src string |
| 57 | importer types.Importer |
| 58 | }{ |
| 59 | {"slice to array pointer - source is not a slice", "package p; var s [4]byte; var _ = (*[4]byte)(s)", nil}, |
| 60 | {"slice to array pointer - dest pointer elem is not an array", "package p; var s []byte; var _ = (*byte)(s)", nil}, |
| 61 | } |
| 62 | |
| 63 | for _, tc := range tests { |
| 64 | tc := tc |
| 65 | t.Run(tc.name, func(t *testing.T) { |
| 66 | t.Parallel() |
| 67 | fset := token.NewFileSet() |
| 68 | f, err := parser.ParseFile(fset, "p.go", tc.src, parser.ParseComments) |
| 69 | if err != nil { |
| 70 | t.Error(err) |
| 71 | } |
| 72 | files := []*ast.File{f} |
| 73 | |
| 74 | pkg := types.NewPackage("p", "") |
| 75 | conf := &types.Config{Importer: tc.importer} |
| 76 | if _, _, err := ssautil.BuildPackage(conf, fset, pkg, files, ssa.SanityCheckFunctions); err == nil { |
| 77 | t.Error("want error, but got nil") |
| 78 | } |
| 79 | }) |
| 80 | } |
| 81 | } |
| 82 |
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