package scalar

import (
	"github.com/z7zmey/php-parser/node"
	"github.com/z7zmey/php-parser/walker"
)

// Heredoc node
type Heredoc struct {
	Label string
	Parts []node.Node
}

// NewHeredoc node constructor
func NewHeredoc(Label string, Parts []node.Node) *Heredoc {
	return &Heredoc{
		Label,
		Parts,
	}
}

// Attributes returns node attributes as map
func (n *Heredoc) Attributes() map[string]interface{} {
	return map[string]interface{}{
		"Label": n.Label,
	}
}

// Walk traverses nodes
// Walk is invoked recursively until v.EnterNode returns true
func (n *Heredoc) Walk(v walker.Visitor) {
	if v.EnterNode(n) == false {
		return
	}

	if n.Parts != nil {
		v.EnterChildList("Parts", n)
		for _, nn := range n.Parts {
			if nn != nil {
				nn.Walk(v)
			}
		}
		v.LeaveChildList("Parts", n)
	}
}