isNamedParam returns true if this A_Expr represents a named parameter (@name) and extracts the parameter name if so.
()
| 17 | // isNamedParam returns true if this A_Expr represents a named parameter (@name) |
| 18 | // and extracts the parameter name if so. |
| 19 | func (n *A_Expr) isNamedParam() (string, bool) { |
| 20 | if n.Name == nil || len(n.Name.Items) != 1 { |
| 21 | return "", false |
| 22 | } |
| 23 | s, ok := n.Name.Items[0].(*String) |
| 24 | if !ok || s.Str != "@" { |
| 25 | return "", false |
| 26 | } |
| 27 | if set(n.Lexpr) || !set(n.Rexpr) { |
| 28 | return "", false |
| 29 | } |
| 30 | if nameStr, ok := n.Rexpr.(*String); ok { |
| 31 | return nameStr.Str, true |
| 32 | } |
| 33 | return "", false |
| 34 | } |
| 35 | |
| 36 | func (n *A_Expr) Format(buf *TrackedBuffer, d format.Dialect) { |
| 37 | if n == nil { |