blob: 39fbedd82582fc2616002fb5830c94b3d10733ab (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
package objects
// len(obj object) => int
func builtinLen(args ...Object) (Object, error) {
if len(args) != 1 {
return nil, ErrWrongNumArguments
}
switch arg := args[0].(type) {
case *Array:
return &Int{Value: int64(len(arg.Value))}, nil
case *ImmutableArray:
return &Int{Value: int64(len(arg.Value))}, nil
case *String:
return &Int{Value: int64(len(arg.Value))}, nil
case *Bytes:
return &Int{Value: int64(len(arg.Value))}, nil
case *Map:
return &Int{Value: int64(len(arg.Value))}, nil
case *ImmutableMap:
return &Int{Value: int64(len(arg.Value))}, nil
default:
return nil, ErrInvalidArgumentType{
Name: "first",
Expected: "array/string/bytes/map",
Found: arg.TypeName(),
}
}
}
|
