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090171ada4
This is a common technique to store variable-length integers efficiently.
It's compatible with both Thrift and Protobuf [1].
It's intended to be used in:
- On-disk file format to make the file compact and avoid issues like
https://bz.mercurial-scm.org/5681 (Obsolete markers code crashes with
metadata keys/values longer than 255 bytes).
- Thrift layer.
[1]: https://developers.google.com/protocol-buffers/docs/encoding#varints
Test Plan:
```
cargo test
cargo clippy
```
Also ran a kcov coverage check and it says 100%.
```
cargo rustc --lib --profile test -- -Ccodegen-units=1 -Clink-dead-code -Zno-landing-pads
kcov --include-path $PWD/src --verify target/kcov ./target/debug/*-????????????????
```
Differential Revision: https://phab.mercurial-scm.org/D929
22 lines
310 B
Plaintext
22 lines
310 B
Plaintext
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