chore: upgrade base64-simd to 0.8.0 (#17463)

This PR upgrades the `base64-simd` dependency of `deno_web`.

base64-simd v0.8 supports `forgiving_decode` in ["copy"
mode](https://docs.rs/base64-simd/0.8.0/base64_simd/fn.forgiving_decode.html),
["inplace"
mode](https://docs.rs/base64-simd/0.8.0/base64_simd/fn.forgiving_decode_inplace.html)
or ["alloc"
mode](https://docs.rs/base64-simd/0.8.0/base64_simd/fn.forgiving_decode_to_vec.html).
When #17159 resolves, they can be used to reduce unnecessary allocations
and copies.

base64-simd v0.8 also supports AArch64 SIMD out of box.

2 files changed, 9 insertions, 8 deletions

diff --git a/ext/web/Cargo.toml b/ext/web/Cargo.toml
index b91013a84..07d3026b5 100644
--- a/ext/web/Cargo.toml
+++ b/ext/web/Cargo.toml
@@ -15,7 +15,7 @@ path = "lib.rs"
 
 [dependencies]
 async-trait.workspace = true
-base64-simd = "0.7"
+base64-simd = "0.8"
 deno_core.workspace = true
 encoding_rs.workspace = true
 flate2.workspace = true
diff --git a/ext/web/lib.rs b/ext/web/lib.rs
index de8984232..92cfcceeb 100644
--- a/ext/web/lib.rs
+++ b/ext/web/lib.rs
@@ -130,25 +130,27 @@ pub fn init<P: TimersPermission + 'static>(
 #[op]
 fn op_base64_decode(input: String) -> Result<ZeroCopyBuf, AnyError> {
   let mut s = input.into_bytes();
-  let decoded_len = forgiving_base64_decode(&mut s)?;
+  let decoded_len = forgiving_base64_decode_inplace(&mut s)?;
   s.truncate(decoded_len);
   Ok(s.into())
 }
 
 #[op]
 fn op_base64_atob(mut s: ByteString) -> Result<ByteString, AnyError> {
-  let decoded_len = forgiving_base64_decode(&mut s)?;
+  let decoded_len = forgiving_base64_decode_inplace(&mut s)?;
   s.truncate(decoded_len);
   Ok(s)
 }
 
 /// See <https://infra.spec.whatwg.org/#forgiving-base64>
 #[inline]
-fn forgiving_base64_decode(input: &mut [u8]) -> Result<usize, AnyError> {
+fn forgiving_base64_decode_inplace(
+  input: &mut [u8],
+) -> Result<usize, AnyError> {
   let error: _ =
     || DomExceptionInvalidCharacterError::new("Failed to decode base64");
-  let decoded = base64_simd::Base64::forgiving_decode_inplace(input)
-    .map_err(|_| error())?;
+  let decoded =
+    base64_simd::forgiving_decode_inplace(input).map_err(|_| error())?;
   Ok(decoded.len())
 }
 
@@ -165,8 +167,7 @@ fn op_base64_btoa(s: ByteString) -> String {
 /// See <https://infra.spec.whatwg.org/#forgiving-base64>
 #[inline]
 fn forgiving_base64_encode(s: &[u8]) -> String {
-  const BASE64_STANDARD: base64_simd::Base64 = base64_simd::Base64::STANDARD;
-  BASE64_STANDARD.encode_to_boxed_str(s).into_string()
+  base64_simd::STANDARD.encode_to_string(s)
 }
 
 #[op]