lib: keys in maps and sets are not nullable
authorJean Privat <jean@pryen.org>
Mon, 26 Jul 2010 20:40:39 +0000 (16:40 -0400)
committerJean Privat <jean@pryen.org>
Fri, 6 Aug 2010 16:47:10 +0000 (12:47 -0400)
commit722848caf40822a77d2d63356071cbe0312044b7
treeda18fe5230f7ec9464eb52adaba4b508fc8aec57
parent4dc16dcc2757b5f98582c7c2c1e6e1427d1f76ed
lib: keys in maps and sets are not nullable

This removes some unsafe code and prepare for a potential strictier nullabe type
implementation.

Signed-off-by: Jean Privat <jean@pryen.org>

# Conflicts:
#
#  lib/standard/collection/hash_collection.nit
lib/standard/collection/abstract_collection.nit
lib/standard/collection/array.nit
lib/standard/collection/hash_collection.nit
src/metamodel/partial_order.nit