exercism/elixir/bread-and-potions/HINTS.md

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2024-03-07 02:25:12 +00:00
# Hints
## General
- Read about protocols in the [official Getting Started guide][getting-started-protocols] or on [elixirschool.com][elixir-school-protocols].
## 1. Define edibility
- There is a [special macro][kernel-defprotocol] for defining protocols.
- Protocols consist of one or more function headers.
- A function header is like a function definition, but without the `do` block. It defines the function name and its arguments, but not what it does.
## 2. Make loaves of bread edible
- There is a [special macro][kernel-defimpl] for implementing a protocol for a given data type.
- Implementing a protocol means writing a function definition for each function header from the protocol.
## 3. Make mana potions edible
- There is a [special macro][kernel-defimpl] for implementing a protocol for a given data type.
- Implementing a protocol means writing a function definition for each function header from the protocol.
## 4. Make poisons edible
- There is a [special macro][kernel-defimpl] for implementing a protocol for a given data type.
- Implementing a protocol means writing a function definition for each function header from the protocol.
[getting-started-protocols]: https://hexdocs.pm/elixir/protocols.html
[elixir-school-protocols]: https://elixirschool.com/en/lessons/advanced/protocols/
[kernel-defprotocol]: https://hexdocs.pm/elixir/Kernel.html#defprotocol/2
[kernel-defimpl]: https://hexdocs.pm/elixir/Kernel.html#defimpl/3