func run(d dynamics.Dwimmer, s *term.SettingT, quotedSetting term.T) term.T {
setting, err := represent.ToSettingT(d, quotedSetting)
if err != nil {
return represent.ConversionError.T(quotedSetting, err)
}
result := d.Run(setting)
if result == nil {
return NoOutput.T(represent.SettingT(setting))
}
return Result.T(represent.T(result), represent.SettingT(setting))
}
func fallThrough(d dynamics.Dwimmer, s *term.SettingT, quotedSetting term.T) term.T {
settingT, err := represent.ToSettingT(d, quotedSetting)
if err != nil {
return term.Make("asked to decide what to do in setting [], "+
"but while converting to a setting received []").T(quotedSetting, err)
}
transition := ElicitAction(d, s, settingT.Setting)
if shouldSave(transition) {
d.Save(settingT.Setting, transition)
}
return TakeTransition.T(represent.Transition(transition))
}
func TestRepresentations(t *testing.T) {
d := dwimmer.TestDwimmer()
defer d.Close()
template := term.Make("term with argument [] and second half here")
template2, err := represent.ToTemplate(d, represent.Template(template))
if err != nil {
t.Errorf("received error %v", err)
}
if template != template2 {
t.Errorf("%v != %v", template, template2)
}
setting := term.Init().Append(template)
setting2, err := represent.ToSetting(d, represent.Setting(setting))
if err != nil {
t.Errorf("received error %v", err)
}
if term.IDSetting(setting) != term.IDSetting(setting2) {
t.Errorf("%v != %v", setting, setting2)
}
actions := []term.ActionC{term.ReturnC(term.Cr(3)), term.ClarifyC(term.Cr(2), core.OK.C()), term.DeleteC(7)}
for _, action := range actions {
action2, err := represent.ToActionC(d, represent.ActionC(action))
if err != nil {
t.Errorf("received error %v", err)
}
if term.IDActionC(action) != term.IDActionC(action2) {
t.Errorf("%v != %v", action, action2)
}
}
stub := term.Make("stub")
tm := template.T(stub.T())
tm2, err := represent.ToT(d, represent.T(tm))
if err != nil {
t.Errorf("received error %v", err)
}
if tm2.String() != tm.String() {
t.Errorf("%v != %v", tm2, tm)
}
rep, err := d.Answer(represent.Explicit.T(represent.T(tm)))
if err != nil {
t.Errorf("failed to make representation explicit: %v", err)
}
tm3, err := represent.ToT(d, rep)
if err != nil {
t.Errorf("received error %v", err)
}
if tm3.String() != tm.String() {
t.Errorf("%v != %v", tm3, tm)
}
settingT := term.InitT().AppendTerm(tm)
settingT2, err := represent.ToSettingT(d, represent.SettingT(settingT))
if err != nil {
t.Errorf("received error %v")
}
if settingT2.Setting.ID != settingT.Setting.ID {
t.Errorf("%v != %v", settingT2, settingT)
}
n := -127
n2, err := represent.ToInt(d, represent.Int(n))
if err != nil {
t.Errorf("received error %v", err)
}
if n != n2 {
t.Errorf("%v != %v", n, n2)
}
s := "hello ₳"
s2, err := represent.ToStr(d, represent.Str(s))
if err != nil {
t.Errorf("received error %v", err)
}
if s != s2 {
t.Errorf("%s != %s", s, s2)
}
}
func (d *Dwimmer) Do(a term.ActionT, s *term.SettingT) term.T {
switch a.Act {
case term.Return:
return a.Args[0]
case term.Ask:
Q := a.Args[0]
child := term.InitT()
dynamics.SubRun(d, Q, s, child)
return nil
case term.View:
value := a.Args[0]
if value != nil {
s.AppendTerm(value)
} else {
s.AppendTerm(Closed.T())
}
return nil
case term.Replace:
//value := a.Args[0]
//n := a.IntArgs[0]
//s.Rollback(n).AppendTerm(value)
return nil
case term.Replay:
n := a.IntArgs[0]
s.Rollback(n)
return nil
case term.Clarify:
Q := a.Args[1]
//TODO handle null pointers much better...
//(e.g. one part of an expression may refer to a deleted variable)
if a.Args[0] == nil {
s.AppendTerm(Closed.T())
return nil
}
var target *term.SettingT
channel, err := represent.ToChannel(d, a.Args[0])
if err == nil {
target = channel.(term.Channel).Instantiate()
} else {
var othererr term.T
target, othererr = represent.ToSettingT(d, a.Args[0])
if othererr != nil {
s.AppendTerm(NotAChannel.T(err))
return nil
}
}
dynamics.SubRun(d, Q, s, target)
return nil
case term.Correct:
n := a.IntArgs[0]
old := s.Setting.Rollback(n)
transition := ElicitAction(d, term.InitT(), old)
d.Save(old, transition)
s.AppendTerm(core.OK.T())
return nil
case term.Delete:
n := a.IntArgs[0]
s.Args[n] = nil
s.AppendTerm(core.OK.T())
return nil
case term.Meta:
s.AppendTerm(CurrentSetting.T(represent.SettingT(s)))
return nil
}
panic("unknown kind of action")
}