mirror of
https://github.com/Mezeporta/Erupe.git
synced 2025-12-15 08:25:09 +01:00
41 lines
675 B
Go
41 lines
675 B
Go
package stringstack
|
|
|
|
import (
|
|
"errors"
|
|
"sync"
|
|
)
|
|
|
|
// StringStack is a basic LIFO "stack" for storing strings.
|
|
type StringStack struct {
|
|
sync.Mutex
|
|
stack []string
|
|
}
|
|
|
|
// New creates a new instance of StringStack
|
|
func New() *StringStack {
|
|
return &StringStack{}
|
|
}
|
|
|
|
// Push pushes a string onto the stack.
|
|
func (s *StringStack) Push(v string) {
|
|
s.Lock()
|
|
defer s.Unlock()
|
|
|
|
s.stack = append(s.stack, v)
|
|
}
|
|
|
|
// Pop pops a string from the stack.
|
|
func (s *StringStack) Pop() (string, error) {
|
|
s.Lock()
|
|
defer s.Unlock()
|
|
|
|
if len(s.stack) == 0 {
|
|
return "", errors.New("no items on stack")
|
|
}
|
|
|
|
x := s.stack[len(s.stack)-1]
|
|
s.stack = s.stack[:len(s.stack)-1]
|
|
|
|
return x, nil
|
|
}
|