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synapse/tests/synapse_rust
Erik Johnston c430c16df4 Port event content to Rust (#19725)
Based on #19708.

This is on the path to porting the entire event class to Rust, as
`event.content` will then return the new Rust class `JsonObject`.

This PR adds a pure Rust `JsonObject` class that is a `Mapping`
representing a json-style object. It uses `serde_json::Value` as its
in-memory representation and `pythonize` for conversion when a field is
looked up on the object.

I'm not thrilled with the name, but couldn't think of a better one.

This also adds `JsonObject` handling to the JSON serialisation functions
we use, as well as to the `freeze(..)` function.

Reviewable commit-by-commit.
2026-05-08 14:19:03 +01:00
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