Skip to content

uniq - take three #10

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: main
Choose a base branch
from
Open

uniq - take three #10

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
23 changes: 10 additions & 13 deletions lib/dry/equalizer.rb
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@ class Equalizer < Module
#
# @api private
def initialize(*keys)
@keys = keys.uniq
@keys = keys
define_methods
freeze
end
Expand All @@ -45,20 +45,19 @@ def included(descendant)
#
# @api private
def define_methods
define_cmp_method
define_hash_method
define_inspect_method
define_cmp_method(@keys)
define_hash_method(@keys)
define_inspect_method(@keys)
end

# Define an #cmp? method based on the instance's values identified by #keys
#
# @return [undefined]
#
# @api private
def define_cmp_method
keys = @keys
def define_cmp_method(keys)
define_method(:cmp?) do |comparator, other|
keys.all? do |key|
keys.uniq.all? do |key|
__send__(key).public_send(comparator, other.__send__(key))
end
end
Expand All @@ -70,10 +69,9 @@ def define_cmp_method
# @return [undefined]
#
# @api private
def define_hash_method
keys = @keys
def define_hash_method(keys)
define_method(:hash) do | |
keys.map(&method(:send)).push(self.class).hash
keys.uniq.map(&method(:send)).push(self.class).hash
end
end

Expand All @@ -82,12 +80,11 @@ def define_hash_method
# @return [undefined]
#
# @api private
def define_inspect_method
keys = @keys
def define_inspect_method(keys)
define_method(:inspect) do | |
klass = self.class
name = klass.name || klass.inspect
"#<#{name}#{keys.map { |key| " #{key}=#{__send__(key).inspect}" }.join}>"
"#<#{name}#{keys.uniq.map { |key| " #{key}=#{__send__(key).inspect}" }.join}>"
end
end

Expand Down