property/hashable.fz
# This file is part of the Fuzion language implementation.
#
# The Fuzion language implementation is free software: you can redistribute it
# and/or modify it under the terms of the GNU General Public License as published
# by the Free Software Foundation, version 3 of the License.
#
# The Fuzion language implementation is distributed in the hope that it will be
# useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
# License for more details.
#
# You should have received a copy of the GNU General Public License along with The
# Fuzion language implementation. If not, see <https://www.gnu.org/licenses/>.
# -----------------------------------------------------------------------
#
# Tokiwa Software GmbH, Germany
#
# Source code of Fuzion standard library feature hashable
#
# -----------------------------------------------------------------------
# hashable -- feature for immutable values that have a hash function
#
# NYI: the compiler should check that features inheriting from this are
# actually immutable.
#
public hashable : property.equatable is
# create hash code for this instance
#
# This should satisfy the following condition:
#
# (T.equality a b) : (T.hash_code a = T.hash_code b)
#
public type.hash_code(a hashable.this) u64 => abstract
last changed: 2024-03-07