VarGroups
A vargroup is an inline typed record: a set of named fields, each with a type and a default value, created from a { ... } literal and read with dot access.
Literal
vargroup player = {
str username = "Ada",
int coins = 250,
bool online = true
};- The literal is
{ type name = value, ... }. Only the brace form exists —[ ... ]is always a list literal, not a vargroup. - Fields are separated by commas. A single trailing
;before the closing}is also accepted. - Every field needs an explicit type and a default value.
- A field may be
const.
Access and assignment
Read a field with dot access. Assigning to a field requires the field's type prefix:
println(player.username); // Ada
int player.coins = 500; // required form
println(player.coins); // 500Omitting the prefix fails with Vargroup and legacy class-field assignment requires an explicit type, and a prefix that does not match the declared field type fails with Field 'coins' of instance '' is declared as 'int' but received a 'str' value.
Assigning to a const field fails with Field 'n' of instance '' is const and cannot be changed.
(This is stricter than classes, where an instance field may be written as instance.field = value;.)
Nesting
Fields may themselves be vargroups, and nested fields are reached by repeating the path:
vargroup nested = { int n = 1, vargroup sub = { str k = "x" } };
println(nested.sub.k); // xFull example
global setup(){}
global main(){
vargroup player = {
str username = "Ada",
int coins = 250,
bool online = true
};
println(player.username); // Ada
println(player.online); // true
int player.coins = 500;
println(player.coins); // 500
vargroup nested = { int n = 1, vargroup sub = { str k = "x" } };
println(nested.sub.k); // x
}