offset

Function parameters

Parameters

self:Self
field:FieldEnum

This is useful for saving memory when allocating an object that has many

Functions

TrailerFlags: This is useful for saving memory when allocating an object that has many

Source

Implementation

pub fn offset(self: Self, comptime field: FieldEnum) usize {
    var off: usize = 0;
    inline for (@typeInfo(Fields).@"struct".fields, 0..) |field_info, i| {
        const active = (self.bits & (1 << i)) != 0;
        if (i == @intFromEnum(field)) {
            assert(active);
            return mem.alignForward(usize, off, @alignOf(field_info.type));
        } else if (active) {
            off = mem.alignForward(usize, off, @alignOf(field_info.type));
            off += @sizeOf(field_info.type);
        }
    }
}