diff options
Diffstat (limited to 'vendor/github.com/xo/terminfo/stack.go')
-rw-r--r-- | vendor/github.com/xo/terminfo/stack.go | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/vendor/github.com/xo/terminfo/stack.go b/vendor/github.com/xo/terminfo/stack.go new file mode 100644 index 000000000..a6de39503 --- /dev/null +++ b/vendor/github.com/xo/terminfo/stack.go @@ -0,0 +1,48 @@ +package terminfo + +type stack []interface{} + +func (s *stack) push(v interface{}) { + *s = append(*s, v) +} + +func (s *stack) pop() interface{} { + if len(*s) == 0 { + return nil + } + v := (*s)[len(*s)-1] + *s = (*s)[:len(*s)-1] + return v +} + +func (s *stack) popInt() int { + if i, ok := s.pop().(int); ok { + return i + } + return 0 +} + +func (s *stack) popBool() bool { + if b, ok := s.pop().(bool); ok { + return b + } + return false +} + +func (s *stack) popByte() byte { + if b, ok := s.pop().(byte); ok { + return b + } + return 0 +} + +func (s *stack) popString() string { + if a, ok := s.pop().(string); ok { + return a + } + return "" +} + +func (s *stack) reset() { + *s = (*s)[:0] +} |