php-parser/node/expr/empty.go
2017-12-31 13:15:50 +02:00

60 lines
943 B
Go

package expr
import (
"github.com/z7zmey/php-parser/node"
)
type Empty struct {
name string
attributes map[string]interface{}
position *node.Position
expr node.Node
}
func NewEmpty(expression node.Node) node.Node {
return Empty{
"Empty",
map[string]interface{}{},
nil,
expression,
}
}
func (n Empty) Name() string {
return "Empty"
}
func (n Empty) Attributes() map[string]interface{} {
return n.attributes
}
func (n Empty) Attribute(key string) interface{} {
return n.attributes[key]
}
func (n Empty) SetAttribute(key string, value interface{}) {
n.attributes[key] = value
}
func (n Empty) Position() *node.Position {
return n.position
}
func (n Empty) SetPosition(p *node.Position) node.Node {
n.position = p
return n
}
func (n Empty) Walk(v node.Visitor) {
if v.EnterNode(n) == false {
return
}
if n.expr != nil {
vv := v.GetChildrenVisitor("expr")
n.expr.Walk(vv)
}
v.LeaveNode(n)
}