During development some toy base library I found impossible to use Numeric literals. Quick search showed, that one need both fromInteger in scope (reasonable) and, as I understand, access to Integer type from 'base' package ('base' for clarity later). It is perfectly reasonable if we assume that every module must depend on 'base'. However, with ghc-prim and NoIplicitPrelude it is not necessary this way. One may wish to drop 'base' dependency entirely. Currently, the only workaround I found is to use cast from string literals (that works perfectly okay) or use unboxed literals like 0xBB## (of unboxed type). Both solutions look dirty, especially in pattern guards. Is there any better solution or movement to improve RebindableSyntax facilities ? for example, moving out classes for RebindableSyntax into ghc-prim package and tuning them so all syntax facilities in base could be defined in terms of RebindableSyntax would be great.