// Time 包引入了go的time包功能
var Time = Toolkit{
Meta: map[string]interface{}{
"category": "toolkit",
"name": "time",
},
Content: map[string]interface{}{
"now": SimpleBox{
ParsexSignChecker(px.Eof),
func(args ...interface{}) Tasker {
return func(env Env) (interface{}, error) {
return tm.Now(), nil
}
}},
"parseDuration": SimpleBox{
ParsexSignChecker(px.Bind_(StringValue, px.Eof)),
func(args ...interface{}) Tasker {
return func(env Env) (interface{}, error) {
return tm.ParseDuration(args[0].(string))
}
}},
"parseTime": SimpleBox{
ParsexSignChecker(px.Binds_(StringValue, StringValue, px.Eof)),
func(args ...interface{}) Tasker {
return func(env Env) (interface{}, error) {
return tm.Parse(args[0].(string), args[1].(string))
}
}},
},
}
val, ok := ch.value.TryRecv()
if val.IsValid() {
return val.Interface(), ok
}
return nil, ok
}
var channel = Toolkit{
Meta: map[string]interface{}{
"category": "toolkit",
"name": "channel",
},
Content: map[string]interface{}{
"chan": SimpleBox{
ParsexSignChecker(px.Binds_(
TypeAs(reflect.TypeOf((*reflect.Type)(nil)).Elem()),
TypeAs(INT),
px.Eof)),
func(args ...interface{}) Tasker {
return func(env Env) (interface{}, error) {
return MakeBothChan(args[0].(reflect.Type), args[1].(Int)), nil
}
}},
"chan->": SimpleBox{
ParsexSignChecker(px.Binds_(
TypeAs(reflect.TypeOf((*reflect.Type)(nil)).Elem()),
TypeAs(INT),
px.Eof)),
func(args ...interface{}) Tasker {
return func(env Env) (interface{}, error) {
return MakeRecvChan(args[0].(reflect.Type), args[1].(Int)), nil
}
// 环境做了妥协
var Axiom = Toolkit{
Meta: map[string]interface{}{
"name": "axiom",
"category": "package",
},
Content: map[string]interface{}{
"quote": LispExpr(func(env Env, args ...interface{}) (Lisp, error) {
if len(args) != 1 {
return nil, fmt.Errorf("Quote Args Error: except only one arg but %v", args)
}
return Q(Q(args[0])), nil
}),
"var": LispExpr(func(env Env, args ...interface{}) (Lisp, error) {
st := px.NewStateInMemory(args)
_, err := px.Binds_(TypeAs(ATOM), px.Either(px.Try(px.Eof),
px.Bind_(px.AnyOne, px.Eof)))(st)
if err != nil {
return nil, err
}
first := args[0].(Atom)
slot := VarSlot(first.Type)
if len(args) == 1 {
err := env.Defvar(first.Name, slot)
return Q(nil), err
}
val, err := Eval(env, args[1])
slot.Set(val)
err = env.Defvar(first.Name, slot)
return Q(val), err
}),
"set": LispExpr(func(env Env, args ...interface{}) (Lisp, error) {