Function getExtFieldName

ext/protos.go:129–140

(mef cel.MacroExprFactory, expr ast.Expr)

}

func getExtFieldName(mef cel.MacroExprFactory, expr ast.Expr) (string, *cel.Error) {
	isValid := false
	extensionField := ""
	switch expr.Kind() {
	case ast.SelectKind:
		extensionField, isValid = validateIdentifier(expr)
	}
	if !isValid {
		return "", mef.NewError(expr.ID(), "invalid extension field")
	}
	return extensionField, nil
}

func validateIdentifier(expr ast.Expr) (string, bool) {
	switch expr.Kind() {