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stack_name.go
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stack_name.go
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package gopush
import "github.com/cryptix/goremutake"
// newNameStack returns a new NAME stack
func newNameStack(interpreter *Interpreter) *Stack {
s := &Stack{
Functions: make(map[string]func()),
}
s.Functions["="] = func() {
if !interpreter.StackOK("name", 2) || !interpreter.StackOK("boolean", 0) {
return
}
n1 := interpreter.Stacks["name"].Pop().(string)
n2 := interpreter.Stacks["name"].Pop().(string)
interpreter.Stacks["boolean"].Push(n1 == n2)
}
s.Functions["dup"] = func() {
interpreter.Stacks["name"].Dup()
}
s.Functions["flush"] = func() {
interpreter.Stacks["name"].Flush()
}
s.Functions["pop"] = func() {
interpreter.Stacks["name"].Pop()
}
s.Functions["quote"] = func() {
interpreter.quoteNextName = true
}
s.Functions["rand"] = func() {
randName := goremutake.Encode(interpreter.numNamesGenerated)
interpreter.Stacks["name"].Push(randName)
interpreter.numNamesGenerated++
}
s.Functions["randboundname"] = func() {
l := len(interpreter.listOfDefinitions)
if l == 0 {
return
}
idx := interpreter.Rand.Intn(l)
randName := interpreter.listOfDefinitions[idx]
interpreter.Stacks["name"].Push(randName)
}
s.Functions["rot"] = func() {
interpreter.Stacks["name"].Rot()
}
s.Functions["shove"] = func() {
if !interpreter.StackOK("name", 1) || !interpreter.StackOK("integer", 1) {
return
}
idx := interpreter.Stacks["integer"].Pop().(int64)
name := interpreter.Stacks["name"].Peek().(string)
interpreter.Stacks["name"].Shove(name, idx)
interpreter.Stacks["name"].Pop()
}
s.Functions["stackdepth"] = func() {
if !interpreter.StackOK("integer", 0) {
return
}
interpreter.Stacks["integer"].Push(interpreter.Stacks["name"].Len())
}
s.Functions["swap"] = func() {
interpreter.Stacks["name"].Swap()
}
s.Functions["yank"] = func() {
if !interpreter.StackOK("integer", 1) || !interpreter.StackOK("name", 1) {
return
}
idx := interpreter.Stacks["integer"].Pop().(int64)
interpreter.Stacks["name"].Yank(idx)
}
s.Functions["yankdup"] = func() {
if !interpreter.StackOK("integer", 1) || !interpreter.StackOK("name", 1) {
return
}
idx := interpreter.Stacks["integer"].Pop().(int64)
interpreter.Stacks["name"].YankDup(idx)
}
return s
}