Issue #20914 has been updated by artemb (Artem Borodkin). You’re absolutely right; this part does seem ambiguous. I initially added it as an empty block, modeled after the short syntax, like this: ```ruby def initialize(name, age, email = nil) = (@name, @age, @email = name, age, email) ``` What do you think about this option: ```ruby def initialize(@name, @age, @email = nil) = () ``` ---------------------------------------- Feature #20914: Constructor Parameter Shortcuts https://bugs.ruby-lang.org/issues/20914#change-110774 * Author: artemb (Artem Borodkin) * Status: Open ---------------------------------------- # Constructor Parameter Shortcuts I propose adding a new syntax to simplify the constructor definition in the classes. Defining a constructor often involves repetitive assignments of parameters to instance variables. This pattern is verbose and can easily become cumbersome, especially in classes with many instance variables. The proposed syntax allows instance variables to be automatically assigned from constructor arguments, improving code clarity and brevity. **Basic Usage**: - **Current**: ```ruby class User def initialize(name, age, email = nil) @name = name @age = age @email = email end end ``` - **Proposed**: ```ruby class User def initialize(@name, @age, @email = nil) = end ``` **Named Parameters**: - **Current**: ```ruby class Product def initialize(name:, price:, description: 'No description available') @name = name @price = price @description = description end end product = Product.new(name: 'Laptop', price: 1000) ``` - **Proposed**: ```ruby class Product def initialize(@name:, @price:, @description: 'No description available') = end product = Product.new(name: 'Laptop', price: 1000) ``` **Mixing Named and Positional Parameters**: - **Current**: ```ruby class Booking def initialize(date, time, customer:, notes: '') @date = date @time = time @customer = customer @notes = notes end end booking = Booking.new('2023-04-01', '14:00', customer: 'Alice', notes: 'First-time client') ``` - **Proposed**: ```ruby class Booking def initialize(@date, @time, @customer:, @notes: '') = end booking = Booking.new('2023-04-01', '14:00', customer: 'Alice', notes: 'First-time client') ``` -- https://bugs.ruby-lang.org/

Issue #20914 has been updated by artemb (Artem Borodkin). Thank you! This appears to be literally the same proposal, so it can be closed. I will review #5825 and follow for updates. ---------------------------------------- Feature #20914: Constructor Parameter Shortcuts https://bugs.ruby-lang.org/issues/20914#change-110782 * Author: artemb (Artem Borodkin) * Status: Open ---------------------------------------- # Constructor Parameter Shortcuts I propose adding a new syntax to simplify the constructor definition in the classes. Defining a constructor often involves repetitive assignments of parameters to instance variables. This pattern is verbose and can easily become cumbersome, especially in classes with many instance variables. The proposed syntax allows instance variables to be automatically assigned from constructor arguments, improving code clarity and brevity. **Basic Usage**: - **Current**: ```ruby class User def initialize(name, age, email = nil) @name = name @age = age @email = email end end ``` - **Proposed**: ```ruby class User def initialize(@name, @age, @email = nil) = end ``` **Named Parameters**: - **Current**: ```ruby class Product def initialize(name:, price:, description: 'No description available') @name = name @price = price @description = description end end product = Product.new(name: 'Laptop', price: 1000) ``` - **Proposed**: ```ruby class Product def initialize(@name:, @price:, @description: 'No description available') = end product = Product.new(name: 'Laptop', price: 1000) ``` **Mixing Named and Positional Parameters**: - **Current**: ```ruby class Booking def initialize(date, time, customer:, notes: '') @date = date @time = time @customer = customer @notes = notes end end booking = Booking.new('2023-04-01', '14:00', customer: 'Alice', notes: 'First-time client') ``` - **Proposed**: ```ruby class Booking def initialize(@date, @time, @customer:, @notes: '') = end booking = Booking.new('2023-04-01', '14:00', customer: 'Alice', notes: 'First-time client') ``` -- https://bugs.ruby-lang.org/