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| author | Divy Srivastava <dj.srivastava23@gmail.com> | 2022-12-01 21:29:15 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-12-02 05:29:15 +0000 |
| commit | 9b2b8df927ac23cfa99016a684179f2a3198ba2e (patch) | |
| tree | 1d13b575bc7c4f7279b2ff3fdde175a7522d643a /ops/optimizer_tests/strings.expected | |
| parent | 075854e5162c3d9f4fd7061d19acbe2c5855536e (diff) | |
feat(ops): Fast zero copy string arguments (#16777)
Uses SeqOneByteString optimization to do zero-copy `&str` arguments in
fast calls.
- [x] Depends on https://github.com/denoland/rusty_v8/pull/1129
- [x] Depends on
https://chromium-review.googlesource.com/c/v8/v8/+/4036884
- [x] Disable in async ops
- [x] Make it work with owned `String` with an extra alloc in fast path.
- [x] Support `Cow<'_, str>`. Owned for slow case, Borrowed for fast
case
```rust
#[op]
fn op_string_len(s: &str) -> u32 {
str.len() as u32
}
```
Diffstat (limited to 'ops/optimizer_tests/strings.expected')
| -rw-r--r-- | ops/optimizer_tests/strings.expected | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/ops/optimizer_tests/strings.expected b/ops/optimizer_tests/strings.expected new file mode 100644 index 000000000..ead741054 --- /dev/null +++ b/ops/optimizer_tests/strings.expected @@ -0,0 +1,11 @@ +=== Optimizer Dump === +returns_result: false +has_ref_opstate: false +has_rc_opstate: false +has_fast_callback_option: false +needs_fast_callback_option: false +fast_result: Some(U32) +fast_parameters: [V8Value, SeqOneByteString] +transforms: {0: Transform { kind: SeqOneByteString(Ref), index: 0 }} +is_async: false +fast_compatible: true |