func formatMember(obj types.Object, maxname int) string {
var buf bytes.Buffer
fmt.Fprintf(&buf, "%-5s %-*s", tokenOf(obj), maxname, obj.Name())
switch obj := obj.(type) {
case *types.Const:
fmt.Fprintf(&buf, " %s = %s", types.TypeString(obj.Pkg(), obj.Type()), obj.Val().String())
case *types.Func:
fmt.Fprintf(&buf, " %s", types.TypeString(obj.Pkg(), obj.Type()))
case *types.TypeName:
// Abbreviate long aggregate type names.
var abbrev string
switch t := obj.Type().Underlying().(type) {
case *types.Interface:
if t.NumMethods() > 1 {
abbrev = "interface{...}"
}
case *types.Struct:
if t.NumFields() > 1 {
abbrev = "struct{...}"
}
}
if abbrev == "" {
fmt.Fprintf(&buf, " %s", types.TypeString(obj.Pkg(), obj.Type().Underlying()))
} else {
fmt.Fprintf(&buf, " %s", abbrev)
}
case *types.Var:
fmt.Fprintf(&buf, " %s", types.TypeString(obj.Pkg(), obj.Type()))
}
return buf.String()
}
// memberFromObject populates package pkg with a member for the
// typechecker object obj.
//
// For objects from Go source code, syntax is the associated syntax
// tree (for funcs and vars only); it will be used during the build
// phase.
//
func memberFromObject(pkg *Package, obj types.Object, syntax ast.Node) {
name := obj.Name()
switch obj := obj.(type) {
case *types.TypeName:
pkg.Members[name] = &Type{
object: obj,
pkg: pkg,
}
case *types.Const:
c := &NamedConst{
object: obj,
Value: NewConst(obj.Val(), obj.Type()),
pkg: pkg,
}
pkg.values[obj] = c.Value
pkg.Members[name] = c
case *types.Var:
g := &Global{
Pkg: pkg,
name: name,
object: obj,
typ: types.NewPointer(obj.Type()), // address
pos: obj.Pos(),
}
pkg.values[obj] = g
pkg.Members[name] = g
case *types.Func:
fn := &Function{
name: name,
object: obj,
Signature: obj.Type().(*types.Signature),
syntax: syntax,
pos: obj.Pos(),
Pkg: pkg,
Prog: pkg.Prog,
}
if syntax == nil {
fn.Synthetic = "loaded from gc object file"
}
pkg.values[obj] = fn
if fn.Signature.Recv() == nil {
pkg.Members[name] = fn // package-level function
}
default: // (incl. *types.Package)
panic("unexpected Object type: " + obj.String())
}
}