feat: improve performance and type-safety #83
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- Replace maps with structs to achieve significant performance gains. (Benchmarks show that this implementation is now faster than jsonld.js.) - Improve type-safety. Previously, type confusion resulted in unnecessary checks, such as comparing a known string value against a boolean. - Ensure defaultLanguage always contains a language. Previously, a missing if-check could result in defaultLanguage being set to "_%s", with %s being the direction. - Remove GetKeysString since it's not used anywhere and is equivalent to the generic GetKeys now. Signed-off-by: Michael Adler <michael.adler@siemens.com>
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@michaeladler, the idea behind this PR makes sense. I can see why it improves performance. The changes are substantial, and I'm still going through it line by line to ensure it does the right things. Apologies for the delay. I should finish the review this week. |
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No problem, I completely understand. Thank you for your thorough review. The test suite is excellent though: it caught every mistake I made (such as using |
kazarena
approved these changes
Jul 14, 2025
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Summary
This may seem like a mundane merge request, but it delivers significant performance improvements. Benchmarks show that this library now outperforms jsonld.js.
Note: While the changes may appear straightforward, caution is required when implementing them. It is sometimes necessary to differentiate between a value explicitly set to
nullin the context and one that is simply absent.PS: I don't have any other changes lined up (I couldn't submit this PR earlier because it builds upon #82 to avoid merge conflicts).
Details:
Basic example
No change in behavior.
Motivation
Performance! Additionally, the struct-based design enhances code navigation/reasoning (especially when using an LSP).
Checks
make test