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-rw-r--r--serde_v8/src/magic/buffer.rs139
1 files changed, 0 insertions, 139 deletions
diff --git a/serde_v8/src/magic/buffer.rs b/serde_v8/src/magic/buffer.rs
deleted file mode 100644
index 1fcfffc72..000000000
--- a/serde_v8/src/magic/buffer.rs
+++ /dev/null
@@ -1,139 +0,0 @@
-use rusty_v8 as v8;
-
-use std::fmt;
-use std::ops::Deref;
-use std::ops::DerefMut;
-use std::sync::Mutex;
-
-use super::zero_copy_buf::ZeroCopyBuf;
-
-// An asymmetric wrapper around ZeroCopyBuf,
-// allowing us to use a single type for familiarity
-pub enum MagicBuffer {
- FromV8(ZeroCopyBuf),
- ToV8(Mutex<Option<Box<[u8]>>>),
-}
-
-impl MagicBuffer {
- pub fn new<'s>(
- scope: &mut v8::HandleScope<'s>,
- view: v8::Local<v8::ArrayBufferView>,
- ) -> Self {
- Self::FromV8(ZeroCopyBuf::new(scope, view))
- }
-
- pub fn empty() -> Self {
- MagicBuffer::ToV8(Mutex::new(Some(vec![0_u8; 0].into_boxed_slice())))
- }
-}
-
-impl Clone for MagicBuffer {
- fn clone(&self) -> Self {
- match self {
- Self::FromV8(zbuf) => Self::FromV8(zbuf.clone()),
- Self::ToV8(_) => panic!("Don't Clone a MagicBuffer sent to v8"),
- }
- }
-}
-
-impl AsRef<[u8]> for MagicBuffer {
- fn as_ref(&self) -> &[u8] {
- &*self
- }
-}
-
-impl AsMut<[u8]> for MagicBuffer {
- fn as_mut(&mut self) -> &mut [u8] {
- &mut *self
- }
-}
-
-impl Deref for MagicBuffer {
- type Target = [u8];
- fn deref(&self) -> &[u8] {
- match self {
- Self::FromV8(buf) => &*buf,
- Self::ToV8(_) => panic!("Don't Deref a MagicBuffer sent to v8"),
- }
- }
-}
-
-impl DerefMut for MagicBuffer {
- fn deref_mut(&mut self) -> &mut [u8] {
- match self {
- Self::FromV8(buf) => &mut *buf,
- Self::ToV8(_) => panic!("Don't Deref a MagicBuffer sent to v8"),
- }
- }
-}
-
-impl From<Box<[u8]>> for MagicBuffer {
- fn from(buf: Box<[u8]>) -> Self {
- MagicBuffer::ToV8(Mutex::new(Some(buf)))
- }
-}
-
-impl From<Vec<u8>> for MagicBuffer {
- fn from(vec: Vec<u8>) -> Self {
- vec.into_boxed_slice().into()
- }
-}
-
-pub const BUF_NAME: &str = "$__v8_magic_Buffer";
-pub const BUF_FIELD_1: &str = "$__v8_magic_buffer_1";
-pub const BUF_FIELD_2: &str = "$__v8_magic_buffer_2";
-
-impl serde::Serialize for MagicBuffer {
- fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
- where
- S: serde::Serializer,
- {
- use serde::ser::SerializeStruct;
-
- let mut s = serializer.serialize_struct(BUF_NAME, 1)?;
- let boxed: Box<[u8]> = match self {
- Self::FromV8(buf) => {
- let value: &[u8] = &buf;
- value.into()
- }
- Self::ToV8(x) => x.lock().unwrap().take().expect("MagicBuffer was empty"),
- };
- let hack: [usize; 2] = unsafe { std::mem::transmute(boxed) };
- let f1: u64 = hack[0] as u64;
- let f2: u64 = hack[1] as u64;
- s.serialize_field(BUF_FIELD_1, &f1)?;
- s.serialize_field(BUF_FIELD_2, &f2)?;
- s.end()
- }
-}
-
-impl<'de, 's> serde::Deserialize<'de> for MagicBuffer {
- fn deserialize<D>(deserializer: D) -> Result<MagicBuffer, D::Error>
- where
- D: serde::Deserializer<'de>,
- {
- struct ValueVisitor {}
-
- impl<'de> serde::de::Visitor<'de> for ValueVisitor {
- type Value = MagicBuffer;
-
- fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
- formatter.write_str("a serde_v8::MagicBuffer")
- }
-
- fn visit_bytes<E>(self, v: &[u8]) -> Result<Self::Value, E>
- where
- E: serde::de::Error,
- {
- let p1: &[usize] = unsafe { &*(v as *const [u8] as *const [usize]) };
- let p2: [usize; 4] = [p1[0], p1[1], p1[2], p1[3]];
- let zero_copy: ZeroCopyBuf = unsafe { std::mem::transmute(p2) };
- Ok(MagicBuffer::FromV8(zero_copy))
- }
- }
-
- static FIELDS: [&str; 0] = [];
- let visitor = ValueVisitor {};
- deserializer.deserialize_struct(BUF_NAME, &FIELDS, visitor)
- }
-}