54 lines
753 B
Go
54 lines
753 B
Go
package ast
|
|
|
|
import (
|
|
"strings"
|
|
|
|
"github.com/d5/tengo/scanner"
|
|
)
|
|
|
|
type IdentList struct {
|
|
LParen scanner.Pos
|
|
List []*Ident
|
|
RParen scanner.Pos
|
|
}
|
|
|
|
func (n *IdentList) Pos() scanner.Pos {
|
|
if n.LParen.IsValid() {
|
|
return n.LParen
|
|
}
|
|
|
|
if len(n.List) > 0 {
|
|
return n.List[0].Pos()
|
|
}
|
|
|
|
return scanner.NoPos
|
|
}
|
|
|
|
func (n *IdentList) End() scanner.Pos {
|
|
if n.RParen.IsValid() {
|
|
return n.RParen + 1
|
|
}
|
|
|
|
if l := len(n.List); l > 0 {
|
|
return n.List[l-1].End()
|
|
}
|
|
|
|
return scanner.NoPos
|
|
}
|
|
|
|
func (n *IdentList) NumFields() int {
|
|
if n == nil {
|
|
return 0
|
|
}
|
|
|
|
return len(n.List)
|
|
}
|
|
|
|
func (n *IdentList) String() string {
|
|
var list []string
|
|
for _, e := range n.List {
|
|
list = append(list, e.String())
|
|
}
|
|
|
|
return "(" + strings.Join(list, ", ") + ")"
|
|
}
|