Function count

aiscript-vm/src/builtins/array.rs:284–305

Return the number of times x appears in the list

(
    _mc: &'gc Mutation<'gc>,
    receiver: Value<'gc>,
    args: Vec<Value<'gc>>,
)

// Return the number of times x appears in the list
fn count<'gc>(
    _mc: &'gc Mutation<'gc>,
    receiver: Value<'gc>,
    args: Vec<Value<'gc>>,
) -> Result<Value<'gc>, VmError> {
    let list = receiver.as_array()?;

    if args.is_empty() {
        return Err(VmError::RuntimeError("count: expected 1 argument".into()));
    }

    let value_to_count = &args[0];

    let count = list
        .borrow()
        .data
        .iter()
        .filter(|item| item.equals(value_to_count))
        .count();

    Ok(Value::Number(count as f64))
}

// Sort the items of the list in place
fn sort<'gc>(