Golang types.Universe类代码示例

func (b *Builder) addVariable(u types.Universe, useName *types.Name, in *tc.Var) *types.Type {
	name := tcVarNameToName(in.String())
	if useName != nil {
		name = *useName
	}
	out := u.Variable(name)
	out.Kind = types.DeclarationOf
	out.Underlying = b.walkType(u, nil, in.Type())
	return out
}

// findTypesIn finalizes the package import and searches through the package
// for types.
func (b *Builder) findTypesIn(pkgPath string, u *types.Universe) error {
	pkg, err := b.makePackage(pkgPath)
	if err != nil {
		return err
	}
	if !b.userRequested[pkgPath] {
		// Since walkType is recursive, all types that the
		// packages they asked for depend on will be included.
		// But we don't need to include all types in all
		// *packages* they depend on.
		return nil
	}

	for _, f := range b.parsed[pkgPath] {
		if strings.HasSuffix(f.name, "/doc.go") {
			tp := u.Package(pkgPath)
			for i := range f.file.Comments {
				tp.Comments = append(tp.Comments, splitLines(f.file.Comments[i].Text())...)
			}
			if f.file.Doc != nil {
				tp.DocComments = splitLines(f.file.Doc.Text())
			}
		}
	}

	s := pkg.Scope()
	for _, n := range s.Names() {
		obj := s.Lookup(n)
		tn, ok := obj.(*tc.TypeName)
		if ok {
			t := b.walkType(*u, nil, tn.Type())
			c1 := b.priorCommentLines(obj.Pos(), 1)
			t.CommentLines = splitLines(c1.Text())
			if c1 == nil {
				t.SecondClosestCommentLines = splitLines(b.priorCommentLines(obj.Pos(), 2).Text())
			} else {
				t.SecondClosestCommentLines = splitLines(b.priorCommentLines(c1.List[0].Slash, 2).Text())
			}
		}
		tf, ok := obj.(*tc.Func)
		// We only care about functions, not concrete/abstract methods.
		if ok && tf.Type() != nil && tf.Type().(*tc.Signature).Recv() == nil {
			b.addFunction(*u, nil, tf)
		}
		tv, ok := obj.(*tc.Var)
		if ok && !tv.IsField() {
			b.addVariable(*u, nil, tv)
		}
	}
	for p := range b.importGraph[pkgPath] {
		u.AddImports(pkgPath, p)
	}
	u.Package(pkgPath).Name = pkg.Name()
	return nil
}

// walkType adds the type, and any necessary child types.
func (b *Builder) walkType(u types.Universe, useName *types.Name, in tc.Type) *types.Type {
	// Most of the cases are underlying types of the named type.
	name := tcNameToName(in.String())
	if useName != nil {
		name = *useName
	}

	switch t := in.(type) {
	case *tc.Struct:
		out := u.Type(name)
		if out.Kind != types.Unknown {
			return out
		}
		out.Kind = types.Struct
		for i := 0; i < t.NumFields(); i++ {
			f := t.Field(i)
			m := types.Member{
				Name:         f.Name(),
				Embedded:     f.Anonymous(),
				Tags:         t.Tag(i),
				Type:         b.walkType(u, nil, f.Type()),
				CommentLines: splitLines(b.priorCommentLines(f.Pos(), 1).Text()),
			}
			out.Members = append(out.Members, m)
		}
		return out
	case *tc.Map:
		out := u.Type(name)
		if out.Kind != types.Unknown {
			return out
		}
		out.Kind = types.Map
		out.Elem = b.walkType(u, nil, t.Elem())
		out.Key = b.walkType(u, nil, t.Key())
		return out
	case *tc.Pointer:
		out := u.Type(name)
		if out.Kind != types.Unknown {
			return out
		}
		out.Kind = types.Pointer
		out.Elem = b.walkType(u, nil, t.Elem())
		return out
	case *tc.Slice:
		out := u.Type(name)
		if out.Kind != types.Unknown {
			return out
		}
		out.Kind = types.Slice
		out.Elem = b.walkType(u, nil, t.Elem())
		return out
	case *tc.Array:
		out := u.Type(name)
		if out.Kind != types.Unknown {
			return out
		}
		out.Kind = types.Array
		out.Elem = b.walkType(u, nil, t.Elem())
		// TODO: need to store array length, otherwise raw type name
		// cannot be properly written.
		return out
	case *tc.Chan:
		out := u.Type(name)
		if out.Kind != types.Unknown {
			return out
		}
		out.Kind = types.Chan
		out.Elem = b.walkType(u, nil, t.Elem())
		// TODO: need to store direction, otherwise raw type name
		// cannot be properly written.
		return out
	case *tc.Basic:
		out := u.Type(types.Name{
			Package: "",
			Name:    t.Name(),
		})
		if out.Kind != types.Unknown {
			return out
		}
		out.Kind = types.Unsupported
		return out
	case *tc.Signature:
		out := u.Type(name)
		if out.Kind != types.Unknown {
			return out
		}
		out.Kind = types.Func
		out.Signature = b.convertSignature(u, t)
		return out
	case *tc.Interface:
		out := u.Type(name)
		if out.Kind != types.Unknown {
			return out
		}
		out.Kind = types.Interface
		t.Complete()
		for i := 0; i < t.NumMethods(); i++ {
			if out.Methods == nil {
				out.Methods = map[string]*types.Type{}
//.........这里部分代码省略.........

// findTypesIn finalizes the package import and searches through the package
// for types.
func (b *Builder) findTypesIn(pkgPath importPathString, u *types.Universe) error {
	glog.V(5).Infof("findTypesIn %s", pkgPath)
	pkg := b.typeCheckedPackages[pkgPath]
	if pkg == nil {
		return fmt.Errorf("findTypesIn(%s): package is not known", pkgPath)
	}
	if !b.userRequested[pkgPath] {
		// Since walkType is recursive, all types that the
		// packages they asked for depend on will be included.
		// But we don't need to include all types in all
		// *packages* they depend on.
		glog.V(5).Infof("findTypesIn %s: package is not user requested", pkgPath)
		return nil
	}

	// We're keeping this package.  This call will create the record.
	u.Package(string(pkgPath)).Name = pkg.Name()
	u.Package(string(pkgPath)).Path = pkg.Path()
	u.Package(string(pkgPath)).SourcePath = b.absPaths[pkgPath]

	for _, f := range b.parsed[pkgPath] {
		if strings.HasSuffix(f.name, "/doc.go") {
			tp := u.Package(string(pkgPath))
			for i := range f.file.Comments {
				tp.Comments = append(tp.Comments, splitLines(f.file.Comments[i].Text())...)
			}
			if f.file.Doc != nil {
				tp.DocComments = splitLines(f.file.Doc.Text())
			}
		}
	}

	s := pkg.Scope()
	for _, n := range s.Names() {
		obj := s.Lookup(n)
		tn, ok := obj.(*tc.TypeName)
		if ok {
			t := b.walkType(*u, nil, tn.Type())
			c1 := b.priorCommentLines(obj.Pos(), 1)
			// c1.Text() is safe if c1 is nil
			t.CommentLines = splitLines(c1.Text())
			if c1 == nil {
				t.SecondClosestCommentLines = splitLines(b.priorCommentLines(obj.Pos(), 2).Text())
			} else {
				t.SecondClosestCommentLines = splitLines(b.priorCommentLines(c1.List[0].Slash, 2).Text())
			}
		}
		tf, ok := obj.(*tc.Func)
		// We only care about functions, not concrete/abstract methods.
		if ok && tf.Type() != nil && tf.Type().(*tc.Signature).Recv() == nil {
			t := b.addFunction(*u, nil, tf)
			c1 := b.priorCommentLines(obj.Pos(), 1)
			// c1.Text() is safe if c1 is nil
			t.CommentLines = splitLines(c1.Text())
			if c1 == nil {
				t.SecondClosestCommentLines = splitLines(b.priorCommentLines(obj.Pos(), 2).Text())
			} else {
				t.SecondClosestCommentLines = splitLines(b.priorCommentLines(c1.List[0].Slash, 2).Text())
			}
		}
		tv, ok := obj.(*tc.Var)
		if ok && !tv.IsField() {
			b.addVariable(*u, nil, tv)
		}
	}
	for p := range b.importGraph[pkgPath] {
		u.AddImports(string(pkgPath), p)
	}
	return nil
}