Function toIndex [src]

Prototype

pub fn toIndex(inst: Ref) ?Index

Parameters

inst: Ref

Source

  pub fn toIndex(inst: Ref) ?Index {
    assert(inst != .none);
    const ref_int = @intFromEnum(inst);
    if (ref_int >= @intFromEnum(Index.ref_start_index)) {
        return @enumFromInt(ref_int - @intFromEnum(Index.ref_start_index));
    } else {
        return null;
    }
}  