3500c686b3
- add type infos to VM error messages - add 'Name' to UserFunction objects - add 'expectErrorString' to VM tests - replace vm.expectError() with vm.expectErrorString() to make it more explicit - add source map info to VM error messages - optimization in function calls - add file/line/col info to compiler errors - change stdlib module to be loaded from VM (instead of compiler) so they can be properly loaded after the source is compiled into binary - VM can take builtin modules optionally
29 lines
725 B
Go
29 lines
725 B
Go
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(),
|
|
}
|
|
}
|
|
}
|