func New(o Object) *Imp {
//
x := new(Imp)
switch o.(type) {
case *enum.Imp:
x.Object, x.typ = enum.New(enum.Enum(o.(*enum.Imp).Typ())), Enumerator
case *tval.Imp:
x.Object, x.typ = tval.New(), TruthValue
case *char.Imp:
x.Object, x.typ = char.New(), Character
case *text.Imp:
x.Object, x.typ = text.New(o.(*text.Imp).Len()), Text
case *bnat.Imp:
x.Object, x.typ = bnat.New(o.(*bnat.Imp).Startval()), Natural
case *breal.Imp:
x.Object, x.typ = breal.New(4), Real
case *clk.Imp:
x.Object, x.typ = clk.New(), Clocktime
case *day.Imp:
x.Object, x.typ = day.New(), Calendarday
case *euro.Imp:
x.Object, x.typ = euro.New(), Euro
case *cntry.Imp:
x.Object, x.typ = cntry.New(), Country
case *pers.Imp:
x.Object, x.typ = pers.New(), Person
case *phone.Imp:
x.Object, x.typ = phone.New(), PhoneNumber
case *addr.Imp:
x.Object, x.typ = addr.New(), Address
default:
ker.Panic("atom.New: parameter does not characterize an atom.Atomtype")
}
return x
}
func (x *Imp) Get() Any {
//
if x.anchor == nil {
return nil
}
if x.actual == nil {
ker.Panic("set.Get error: x.actual == nil")
}
return Clone(x.actual.root)
}
func Want(y, m, d uint) {
//
wanted := day.New()
wanted.SetFormat(day.Yymmdd)
if wanted.Set(d, m, 2000+y) {
if v.Less(wanted) {
errh.Error("Your murus "+v.String()+" is outdated. You need "+wanted.String()+".", 0)
ker.Halt(-1)
}
} else {
ker.Panic("parameters for v.Want are nonsense")
}
}
// x.path is the list of nodes from actual up to root.
// min/max == true, iff the actual node w.r.t. Less
// is the smallest/largest object in x.
func (x *Imp) defPath() (bool, bool) {
//
t := x.anchor
x.path = &node{t, nil}
min, max := true, true
for {
if t == x.actual {
break
}
if x == nil {
ker.Panic("murus/set/path.go defPath: x == nil")
}
if t.root == nil {
ker.Panic("murus/set/path.go defPath: t.root == nil")
}
if Less(x.actual.root, t.root) { // TODO avoid crash
t, max = t.left, false
} else {
t, min = t.right, false
}
x.path = &node{t, x.path}
}
return min && t.left == nil, max && t.right == nil
}
func Decode(a Any, b []byte) Any {
//
switch a.(type) {
case Object:
a.(Object).Decode(b)
return a
case byte:
a = b[0]
/*/
/*/
case float64: // workaround (bug in Go ?)
u := uint64(0)
for i := 0; i < 8; i++ {
u <<= 8
u += uint64(b[i])
}
// return math.Float64frombits (u)
return *(*float64)(unsafe.Pointer(&u))
/*/
/*/
case string:
return string(b)
case []byte:
copy(a.([]byte), b)
return a
default:
n := uintptr(unsafe.Sizeof(a)) // 8 (386) resp. 16 (amd64)
/*/
t:= reflect.TypeOf (a)
s:= t.Size ()
/*/
s := reflect.TypeOf(a).Size()
if s != uintptr(len(b)) {
ker.Panic("obj.Decode error: s == " + strconv.Itoa(int(s)) +
", len(b) == " + strconv.Itoa(int(uintptr(len(b)))))
}
if s < n {
n = uintptr(n / 2)
} else {
n = uintptr(0)
}
addr := uintptr(unsafe.Pointer(&a))
for i := uintptr(0); i < s; i++ {
*(*byte)(unsafe.Pointer(addr + n + i)) = b[i]
}
}
return a
}
func New(nc, nr uint) *Imp {
//
x := new(Imp)
x.nC, x.nR = nc, nr
x.stat = make([]status, x.nC)
for r := uint(0); r < x.nR; r++ {
x.stat[r].max = make([]uint, x.nC)
for c := uint(0); c < x.nC; c++ {
x.stat[r].max[c] = ker.MaxNat
}
}
c := func(k uint) bool {
var b bool
for r := uint(0); r < x.nR; r++ {
b = b ||
x.stat[r].number == 0 ||
x.stat[r].class == k && x.stat[r].number < x.stat[r].max[k]
}
return b
}
e := func(a Any, k uint) {
for r := uint(0); r < x.nR; r++ {
if x.stat[r].number == 0 || x.stat[r].class == k {
x.stat[r].class = k
x.stat[r].number++
n := a.(*uint)
*n = r
return
}
}
ker.Panic(pack + ".New() error")
}
l := func(a Any, k uint) {
for r := uint(0); r < x.nR; r++ {
if x.stat[r].class == k && x.stat[r].number > 0 {
x.stat[r].number--
}
}
}
x.Imp = cs.New(x.nC, c, e, l)
return x
}
func NewR(h []*host.Imp, p []uint) *ImpR {
//
n := uint(len(h))
if n == 0 {
ker.Panic("dlock.NewR for n == 0")
}
me := uint(0)
for i := uint(0); i < n; i++ {
if host.Local(h[i].String()) {
me = i
}
}
k := (me + n - 1) / n
in := nchan.New(false, h[k].String(), uint16(p[k]), true)
k = (me + 1) / n
out := nchan.New(false, h[k].String(), uint16(p[k]), true)
x := new(ImpR)
x.entry.Lock()
x.exit.Lock()
go func() {
for {
if halt {
break
}
in.Recv()
if x.crit {
x.entry.Unlock()
x.exit.Lock()
}
out.Send(true)
}
in.Terminate()
out.Terminate()
}()
if me == 0 {
out.Send(true)
}
return x
}
func WrongUintParameterPanic(s string, a Any, n uint) {
//
ker.Panic("method " + s +
" for object of type " + reflect.TypeOf(a).String() +
" got wrong value for " + strconv.FormatUint(uint64(n), 10))
}
func PanicIfNotOk(a Any) {
//
if !Atomic(a) && !IsObject(a) {
ker.Panic("parameter is neither Atomic nor implements Object")
}
}
func NotCompatiblePanic() {
//
ker.Panic("the two involved types are not compatible")
}
func TypeNotEqPanic(a, b Any) {
//
ker.Panic("the types " + reflect.TypeOf(a).String() +
" and " + reflect.TypeOf(b).String() + " are not equal")
}
func TypePanic() {
//
ker.Panic("the type does not fit to the implementation")
}
func DivBy0Panic() {
//
ker.Panic("division by 0")
}
func (x *Imp) Split(Y Iterator) {
//
// y:= x.imp (Y)
ker.Panic("piset.Split not yet implemented")
}
func (x *Imp) ClrPred(p Pred) {
//
ker.Panic("piset.ClrPred not yet implemented")
}