diff options
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 /runtime/ops/io.rs | |
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 'runtime/ops/io.rs')
-rw-r--r-- | runtime/ops/io.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/runtime/ops/io.rs b/runtime/ops/io.rs index 8ed6969f9..fd5b8a962 100644 --- a/runtime/ops/io.rs +++ b/runtime/ops/io.rs @@ -671,7 +671,7 @@ impl Resource for StdFileResource { #[op] pub fn op_print( state: &mut OpState, - msg: String, + msg: &str, is_err: bool, ) -> Result<(), AnyError> { let rid = if is_err { 2 } else { 1 }; |