func TestExportedType(t *testing.T) {
tests := []struct {
typString string
exp bool
}{
{"int", true},
{"string", false}, // references the shadowed builtin "string"
{"T", true},
{"t", false},
{"*T", true},
{"*t", false},
{"map[int]complex128", true},
}
for _, test := range tests {
src := `package foo; type T int; type t int; type string struct{}`
fset := token.NewFileSet()
file, err := parser.ParseFile(fset, "foo.go", src, 0)
if err != nil {
t.Fatalf("Parsing %q: %v", src, err)
}
// use the package name as package path
pkg, err := types.Check(file.Name.Name, fset, []*ast.File{file})
if err != nil {
t.Fatalf("Type checking %q: %v", src, err)
}
tv, err := types.Eval(fset, pkg, token.NoPos, test.typString)
if err != nil {
t.Errorf("types.Eval(%q): %v", test.typString, err)
continue
}
if got := exportedType(tv.Type); got != test.exp {
t.Errorf("exportedType(%v) = %t, want %t", tv.Type, got, test.exp)
}
}
}
func TestDemo(ot *testing.T) {
importPath := "github.com/bronze1man/kmg/kmgGoSource"
kmgCmd.MustRun("kmg go test -i " + importPath)
pkgDir := kmgConfig.DefaultEnv().MustGetPathFromImportPath(importPath)
fset := token.NewFileSet()
astPkgMap, err := parser.ParseDir(fset, pkgDir, nil, 0)
if err != nil {
panic(err)
}
astPkg := astPkgMap["kmgGoSource_test"]
astFileList := []*ast.File{}
for _, file := range astPkg.Files {
astFileList = append(astFileList, file)
}
//os.Chdir(kmgConfig.DefaultEnv().ProjectPath)
pkg, err := types.Check(pkgDir, fset, astFileList)
if err != nil {
panic(err)
}
funcA := pkg.Scope().Lookup("FuncA")
recvPkg := types.NewPackage("github.com/bronze1man/kmg/kmgGoSource", "kmgGoSource")
kmgDebug.Println(types.TypeString(recvPkg, funcA.Type()))
funTypParams := funcA.Type().(*types.Signature).Params()
for i := 0; i < funTypParams.Len(); i++ {
kmgDebug.Println(funTypParams.At(i).Name())
kmgDebug.Println(funTypParams.At(i).Type().String())
}
//for _,p:=range funcA.Type().(*types.Signature).Params().
//kmgDebug.Println(funcA.Type().(*types.Signature).Params().String())
}
func ParsePackage(name, dir string) (*types.Package, *token.FileSet) {
fset := token.NewFileSet()
pkgs, err := parser.ParseDir(fset, dir, fileFilter, parser.DeclarationErrors)
astFiles := []*ast.File{}
for _, pkg := range pkgs {
for _, f := range pkg.Files {
astFiles = append(astFiles, f)
}
}
tPackage, err := types.Check(name, fset, astFiles)
if err != nil {
log.Fatal(err)
}
if !tPackage.Complete() {
log.Fatal("Parsing of package incomplete.")
}
return tPackage, fset
}
func gotypes(data []byte) (err error) {
defer func() {
x := recover()
if x != nil {
if str, ok := x.(string); ok && strings.Contains(str, "not an Int") {
// https://github.com/golang/go/issues/11325
err = errors.New(str)
return
}
panic(x)
}
}()
fset := token.NewFileSet()
var f *ast.File
f, err = parser.ParseFile(fset, "src.go", data, parser.ParseComments|parser.DeclarationErrors|parser.AllErrors)
if err != nil {
return
}
_, err = types.Check("pkg", fset, []*ast.File{f})
if err != nil {
return
}
return
}
func (w *World) CompilePackage(fset *token.FileSet, files []*ast.File, pkgpath string) (Code, error) {
pkgFiles := make(map[string]*ast.File)
for _, f := range files {
pkgFiles[f.Name.Name] = f
}
//pkg, err := ast.NewPackage(fset, pkgFiles, srcImporter, types.Universe)
pkg, err := types.Check(files[0].Name.String(), fset, files)
if err != nil {
return nil, err
}
if pkg == nil {
return nil, errors.New("could not create an AST package out of ast.Files")
}
switch g_visiting[pkgpath] {
case done:
return &pkgCode{w, make(code, 0)}, nil
case visiting:
//fmt.Printf("** package dependency cycle **\n")
return nil, errors.New("package dependency cycle")
}
g_visiting[pkgpath] = visiting
// create a new scope in which to process this new package
imports := []*ast.ImportSpec{}
for _, f := range files {
imports = append(imports, f.Imports...)
}
for _, imp := range imports {
path, _ := strconv.Unquote(imp.Path.Value)
if _, ok := universe.pkgs[path]; ok {
// already compiled
continue
}
imp_files, err := findPkgFiles(path)
if err != nil {
return nil, errors.New(fmt.Sprintf("could not find files for package [%s]", path))
}
code, err := w.CompilePackage(fset, imp_files, path)
if err != nil {
return nil, err
}
_, err = code.Run()
if err != nil {
return nil, err
}
}
prev_scope := w.scope
w.scope = w.scope.ChildScope()
w.scope.global = true
defer func() {
g_visiting[pkgpath] = done
// add this scope (the package's scope) to the lookup-table of packages
universe.pkgs[pkgpath] = w.scope
// restore the previous scope
w.scope.exit()
if pkgpath != "main" {
w.scope = prev_scope
}
}()
decls := make([]ast.Decl, 0)
for _, f := range files {
decls = append(decls, f.Decls...)
}
code, err := w.CompileDeclList(fset, decls)
if err != nil {
return nil, err
}
_, err = code.Run()
if err != nil {
return nil, err
}
//FIXME: make sure all the imports are used at this point.
{
// store the init function (if any) for later use
init_code, init_err := w.Compile(fset, "init()")
if init_code != nil {
if init_err == nil || init_err != nil {
w.inits = append(w.inits, init_code)
}
}
}
return code, err
}