Structs and Embedded Schemas in Elixir: Beyond Maps

Structs in Elixir are named maps enhanced with compile-time key validation and optional required field enforcement, implementing these features through an automatically-added __struct__ key and ETS-backed mechanisms that prevent access to undefined keys and enforce strict field definitions. Unlike regular maps, structs disallow bracket notation access ([]) for undefined keys and support the @enforce_keys directive to mandate specific fields during struct creation, providing stricter type guarantees while remaining functionally compatible with map operations like dot notation access and pattern matching.

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