65 lines
1.4 KiB
Go
65 lines
1.4 KiB
Go
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package ssautil_test
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import (
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"go/ast"
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"go/importer"
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"go/parser"
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"go/token"
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"go/types"
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"os"
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"testing"
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"golang.org/x/tools/go/ssa/ssautil"
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)
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const hello = `package main
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import "fmt"
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func main() {
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fmt.Println("Hello, world")
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}
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`
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func TestBuildPackage(t *testing.T) {
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// There is a more substantial test of BuildPackage and the
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// SSA program it builds in ../ssa/builder_test.go.
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fset := token.NewFileSet()
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f, err := parser.ParseFile(fset, "hello.go", hello, 0)
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if err != nil {
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t.Fatal(err)
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}
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pkg := types.NewPackage("hello", "")
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ssapkg, _, err := ssautil.BuildPackage(&types.Config{Importer: importer.Default()}, fset, pkg, []*ast.File{f}, 0)
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if err != nil {
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t.Fatal(err)
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}
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if pkg.Name() != "main" {
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t.Errorf("pkg.Name() = %s, want main", pkg.Name())
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}
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if ssapkg.Func("main") == nil {
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ssapkg.WriteTo(os.Stderr)
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t.Errorf("ssapkg has no main function")
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}
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}
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func TestBuildPackage_MissingImport(t *testing.T) {
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fset := token.NewFileSet()
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f, err := parser.ParseFile(fset, "bad.go", `package bad; import "missing"`, 0)
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if err != nil {
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t.Fatal(err)
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}
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pkg := types.NewPackage("bad", "")
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ssapkg, _, err := ssautil.BuildPackage(new(types.Config), fset, pkg, []*ast.File{f}, 0)
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if err == nil || ssapkg != nil {
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t.Fatal("BuildPackage succeeded unexpectedly")
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}
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}
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