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author | Daniel Doubrovkine (dB.) @dblockdotorg <dblock@dblock.org> | 2019-01-28 15:51:16 -0500 |
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committer | GitHub <noreply@github.com> | 2019-01-28 15:51:16 -0500 |
commit | dc64b1024cca1916e49b12902c82c3e1560fef39 (patch) | |
tree | 84c55562cdd1281072bcd84114d11859a7f5e528 /lib/hashie | |
parent | cd30488f9e4f4cbdfe0ccada40297e6f6d7e5610 (diff) | |
parent | 250f174f48a7115c832690fd052dcaf63b6debc9 (diff) | |
download | hashie-dc64b1024cca1916e49b12902c82c3e1560fef39.tar.gz |
Merge pull request #323 from marshall-lee/define_accessors
Add Hashie::Extensions::Mash::DefineAccessors.
Diffstat (limited to 'lib/hashie')
-rw-r--r-- | lib/hashie/extensions/mash/define_accessors.rb | 90 | ||||
-rw-r--r-- | lib/hashie/mash.rb | 4 |
2 files changed, 94 insertions, 0 deletions
diff --git a/lib/hashie/extensions/mash/define_accessors.rb b/lib/hashie/extensions/mash/define_accessors.rb new file mode 100644 index 0000000..f13ea2e --- /dev/null +++ b/lib/hashie/extensions/mash/define_accessors.rb @@ -0,0 +1,90 @@ +module Hashie + module Extensions + module Mash + module DefineAccessors + def self.included(klass) + klass.class_eval do + mod = Ext.new + include mod + end + end + + def self.extended(obj) + included(obj.singleton_class) + end + + class Ext < Module + def initialize + mod = self + define_method(:method_missing) do |method_name, *args, &block| + key, suffix = method_name_and_suffix(method_name) + case suffix + when '='.freeze + mod.define_writer(key, method_name) + when '?'.freeze + mod.define_predicate(key, method_name) + when '!'.freeze + mod.define_initializing_reader(key, method_name) + when '_'.freeze + mod.define_underbang_reader(key, method_name) + else + mod.define_reader(key, method_name) + end + send(method_name, *args, &block) + end + end + + def define_reader(key, method_name) + define_method(method_name) do |&block| + if key? method_name + self.[](method_name, &block) + else + self.[](key, &block) + end + end + end + + def define_writer(key, method_name) + define_method(method_name) do |value = nil| + if key? method_name + self.[](method_name, &proc) + else + assign_property(key, value) + end + end + end + + def define_predicate(key, method_name) + define_method(method_name) do + if key? method_name + self.[](method_name, &proc) + else + !!self[key] + end + end + end + + def define_initializing_reader(key, method_name) + define_method(method_name) do + if key? method_name + self.[](method_name, &proc) + else + initializing_reader(key) + end + end + end + + def define_underbang_reader(key, method_name) + define_method(method_name) do + if key? method_name + self.[](key, &proc) + else + underbang_reader(key) + end + end + end + end + end + end + end +end diff --git a/lib/hashie/mash.rb b/lib/hashie/mash.rb index 6e45c09..f41d745 100644 --- a/lib/hashie/mash.rb +++ b/lib/hashie/mash.rb @@ -119,6 +119,10 @@ module Hashie end end + def with_accessors! + extend Hashie::Extensions::Mash::DefineAccessors + end + alias to_s inspect # If you pass in an existing hash, it will |