php-parser/node/stmt/n_if.go

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package stmt
import (
"github.com/z7zmey/php-parser/meta"
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"github.com/z7zmey/php-parser/node"
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"github.com/z7zmey/php-parser/position"
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"github.com/z7zmey/php-parser/walker"
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)
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// If node
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type If struct {
Meta meta.Collection
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Position *position.Position
Cond node.Node
Stmt node.Node
ElseIf []node.Node
Else node.Node
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}
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// NewIf node constructor
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func NewIf(Cond node.Node, Stmt node.Node, ElseIf []node.Node, Else node.Node) *If {
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return &If{
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Cond: Cond,
Stmt: Stmt,
ElseIf: ElseIf,
Else: Else,
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}
}
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// SetPosition sets node position
func (n *If) SetPosition(p *position.Position) {
n.Position = p
}
// GetPosition returns node positions
func (n *If) GetPosition() *position.Position {
return n.Position
}
func (n *If) GetMeta() *meta.Collection {
return &n.Meta
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}
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// Attributes returns node attributes as map
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func (n *If) Attributes() map[string]interface{} {
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return nil
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}
// AddElseIf add ElseIf node and returns AltIf node
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func (n *If) AddElseIf(ElseIf node.Node) node.Node {
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if n.ElseIf == nil {
n.ElseIf = make([]node.Node, 0)
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}
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n.ElseIf = append(n.ElseIf, ElseIf)
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return n
}
// SetElse set Else node and returns AltIf node
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func (n *If) SetElse(Else node.Node) node.Node {
n.Else = Else
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return n
}
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// Walk traverses nodes
// Walk is invoked recursively until v.EnterNode returns true
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func (n *If) Walk(v walker.Visitor) {
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if v.EnterNode(n) == false {
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return
}
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if n.Cond != nil {
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v.EnterChildNode("Cond", n)
n.Cond.Walk(v)
v.LeaveChildNode("Cond", n)
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}
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if n.Stmt != nil {
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v.EnterChildNode("Stmt", n)
n.Stmt.Walk(v)
v.LeaveChildNode("Stmt", n)
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}
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if n.ElseIf != nil {
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v.EnterChildList("ElseIf", n)
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for _, nn := range n.ElseIf {
if nn != nil {
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nn.Walk(v)
}
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}
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v.LeaveChildList("ElseIf", n)
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}
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if n.Else != nil {
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v.EnterChildNode("Else", n)
n.Else.Walk(v)
v.LeaveChildNode("Else", n)
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}
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v.LeaveNode(n)
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}