Arran Schlosberg 35926db4d6 feat: temporary extras (#234) ... ## Why this should be merged Registration of extras requires runtime enforcement of payload types. In production, only a single set of types can be registered and any attempts at re-registration will panic (by design). Although this makes production usage safe, it doesn't allow downstream consumers (e.g. data indexers) to use extras from different chains (e.g. `coreth` _and_ `subnet-evm`) at the same time. ## How this works 1. The `libevm/register.AtMostOnce` type can now be overridden temporarily. 2. `params`, `core/types`, `core/vm`, and `state` packages introduce `WithTempRegisteredExtras()` functions. 3. `libevm/temporary.WithRegisteredExtras()` provides "atomic" override of all extras. In all cases, the scope of the override is limited to the life of a single function call. ## How this was tested Relative to numbered list above: 1. Unit test of new and existing functionality. 2. Integration tests of both packages, demonstrating both payload and behavioural override.		2025-10-02 17:42:26 +01:00
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temporary.go	feat: temporary extras (#234)	2025-10-02 17:42:26 +01:00