WIP: Add support for int keys in maps #1180
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Nov 19, 2024
Issue #1050 Added support for enums and literal strings in map keys: ```baml enum MapKey { A B C } class Fields { // Enum as key e map<MapKey, string> // Single literal as key l1 map<"literal", string> // Union of literals as keys l2 map<"one" | "two" | ("three" | "four"), string> } ``` Literal integers are more complicated since they require maps to support int keys. See #1180. <!-- ELLIPSIS_HIDDEN --> ---- > [!IMPORTANT] > Add support for enums and literal strings as map keys in BAML, with updated validation, coercion logic, and tests. > > - **Behavior**: > - Support for enums and literal strings as map keys added in `mod.rs` and `types.rs`. > - Validation logic updated to allow enums and literal strings as map keys. > - Coercion logic updated to handle enums and literal strings as map keys. > - **Tests**: > - Added tests in `map_enums_and_literals.baml` and `map_types.baml` to verify new map key functionality. > - Updated `test_functions.py` and `integ-tests.test.ts` to include cases for enum and literal string map keys. > - **Misc**: > - Updated error messages in `error.rs` to reflect new map key types. > - Minor updates in `async_client.py`, `sync_client.py`, and `client.rb` to support new map key types. > > <sup>This description was created by </sup>[<img alt="Ellipsis" src="https://img.shields.io/badge/Ellipsis-blue?color=175173">](https://www.ellipsis.dev?ref=BoundaryML%2Fbaml&utm_source=github&utm_medium=referral)<sup> for c7742fd. It will automatically update as commits are pushed.</sup> <!-- ELLIPSIS_HIDDEN -->
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WIP, some ideas to implement int keys:
BamlValue::Map.BamlMapKeyenum everywhere.The FFI code that converts
BamlValueback to Python or other targets needs the informationabout the type of the key, which is not currently provided by
BamlValue::Map. But thenBamlValue::Mapis also used for converting JSONs from LLMs into classes or similar operations, basically the runtime is designed around maps supporting string keys only.