This section describes the data types available in the Horse64 programming language.
| Data type name | How to instantiate | Mutable | GC load |
|---|---|---|---|
| none | none | no | no |
| num | 1, 1.0, -2.332 | no | no |
| str | "bla", 'bla', "" | no | no |
| bytes | b"test", b'' | no | no |
| bool | yes, no | no | no |
| vec | [x:1, y:5, z:3, w:1.1] | no | no |
| list | [], [1, 2] | yes | yes |
| map | {"price"-> 5.0}, {->} | yes | yes |
| set | {}, {1, 2} | yes | yes |
| type | new MyCustomType() | yes | yes |
| func | var f = func test {} | no | no |
Mutable types are passed by reference, immutable ones by value.
(Read more here about GC load.)
typeSo-called custom types, or in short just types, are declared via the type keyword. Internally, they're basically just a struct like in C/C++ which contains a reference to the type definition they belong to, as well as all the values of the var attributes they have.
Since custom types can have var attributes pointing to other types and back in circles, they're allocated on the GC heap causing GC load.