expr/iter-factory.go

26 lines
502 B
Go

// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
// All rights reserved.
// iter-factory.go
package expr
func NewIterator(value any) (it Iterator, err error) {
if value == nil {
return NewArrayIterator([]any{}), nil
}
switch v := value.(type) {
case *ListType:
it = NewListIterator(v, nil)
case *DictType:
it, err = NewDictIterator(v, nil)
case []any:
it = NewArrayIterator(v)
case Iterator:
it = v
default:
it = NewArrayIterator([]any{value})
}
return
}