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Equals and Hash

This page discusses the operator== (equals) and hashCode of the automatically generated Dart class.

Default​

The default for non-freezed classes is field-by-field comparison. You can use #[frb(non_hash, non_eq)] to disable such generated code.

The default for freezed classes: Usually field-by-field comparison (see freezed's doc for more details).

Custom (arbitrary)​

Arbitrary equals/hash function can also be implemented by using the extra Dart code feature. For example, #[frb(dart_code = "int get hashCode { arbitrary_code_calling_whatever_Rust_and_Dart_things }")].