-
Notifications
You must be signed in to change notification settings - Fork 824
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
11 changed files
with
302 additions
and
174 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,149 @@ | ||
| pub use std::cell::Cell; | ||
|
|
||
| use core::cmp::Ordering; | ||
| use core::fmt::{self, Debug}; | ||
| use std::fmt::Pointer; | ||
|
|
||
| /// A mutable Wasm-memory location. | ||
| #[repr(transparent)] | ||
| pub struct WasmCell<'a, T: ?Sized> { | ||
| inner: &'a Cell<T>, | ||
| } | ||
|
|
||
| unsafe impl<T: ?Sized> Send for WasmCell<'_, T> where T: Send {} | ||
|
|
||
| unsafe impl<T: ?Sized> Sync for WasmCell<'_, T> {} | ||
|
|
||
| impl<'a, T: Copy> Clone for WasmCell<'a, T> { | ||
| #[inline] | ||
| fn clone(&self) -> WasmCell<'a, T> { | ||
| WasmCell { inner: self.inner } | ||
| } | ||
| } | ||
|
|
||
| impl<T: PartialEq + Copy> PartialEq for WasmCell<'_, T> { | ||
| #[inline] | ||
| fn eq(&self, other: &WasmCell<T>) -> bool { | ||
| self.inner.eq(&other.inner) | ||
| } | ||
| } | ||
|
|
||
| impl<T: Eq + Copy> Eq for WasmCell<'_, T> {} | ||
|
|
||
| impl<T: PartialOrd + Copy> PartialOrd for WasmCell<'_, T> { | ||
| #[inline] | ||
| fn partial_cmp(&self, other: &WasmCell<T>) -> Option<Ordering> { | ||
| self.inner.partial_cmp(&other.inner) | ||
| } | ||
|
|
||
| #[inline] | ||
| fn lt(&self, other: &WasmCell<T>) -> bool { | ||
| self.inner < other.inner | ||
| } | ||
|
|
||
| #[inline] | ||
| fn le(&self, other: &WasmCell<T>) -> bool { | ||
| self.inner <= other.inner | ||
| } | ||
|
|
||
| #[inline] | ||
| fn gt(&self, other: &WasmCell<T>) -> bool { | ||
| self.inner > other.inner | ||
| } | ||
|
|
||
| #[inline] | ||
| fn ge(&self, other: &WasmCell<T>) -> bool { | ||
| self.inner >= other.inner | ||
| } | ||
| } | ||
|
|
||
| impl<T: Ord + Copy> Ord for WasmCell<'_, T> { | ||
| #[inline] | ||
| fn cmp(&self, other: &WasmCell<T>) -> Ordering { | ||
| self.inner.cmp(&other.inner) | ||
| } | ||
| } | ||
|
|
||
| impl<'a, T> WasmCell<'a, T> { | ||
| /// Creates a new `WasmCell` containing the given value. | ||
| /// | ||
| /// # Examples | ||
| /// | ||
| /// ``` | ||
| /// use std::cell::Cell; | ||
| /// use wasmer::WasmCell; | ||
| /// | ||
| /// let cell = Cell::new(5); | ||
| /// let wasm_cell = WasmCell::new(&cell); | ||
| /// ``` | ||
| #[inline] | ||
| pub const fn new(cell: &'a Cell<T>) -> WasmCell<'a, T> { | ||
| WasmCell { inner: cell } | ||
| } | ||
| } | ||
|
|
||
| impl<'a, T: Copy> WasmCell<'a, T> { | ||
| /// Returns a copy of the contained value. | ||
| /// | ||
| /// # Examples | ||
| /// | ||
| /// ``` | ||
| /// use std::cell::Cell; | ||
| /// use wasmer::WasmCell; | ||
| /// | ||
| /// let cell = Cell::new(5); | ||
| /// let wasm_cell = WasmCell::new(&cell); | ||
| /// let five = wasm_cell.get(); | ||
| /// ``` | ||
| #[inline] | ||
| pub fn get(&self) -> T { | ||
| self.inner.get() | ||
| } | ||
|
|
||
| /// Get an unsafe mutable pointer to the inner item | ||
| /// in the Cell. | ||
| /// | ||
| /// # Safety | ||
| /// | ||
| /// This method is highly discouraged to use. We have it for | ||
| /// compatibility reasons with Emscripten. | ||
| /// It is unsafe because changing an item inline will change | ||
| /// the underlying memory. | ||
| /// | ||
| /// It's highly encouraged to use the `set` method instead. | ||
| #[deprecated( | ||
| since = "2.0.0", | ||
| note = "Please use the memory-safe set method instead" | ||
| )] | ||
| #[doc(hidden)] | ||
| pub unsafe fn get_mut(&self) -> &'a mut T { | ||
| &mut *self.inner.as_ptr() | ||
| } | ||
| } | ||
|
|
||
| impl<T: Debug> Debug for WasmCell<'_, T> { | ||
| #[inline] | ||
| fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { | ||
| self.inner.fmt(f) | ||
| } | ||
| } | ||
|
|
||
| impl<T: Sized> WasmCell<'_, T> { | ||
| /// Sets the contained value. | ||
| /// | ||
| /// # Examples | ||
| /// | ||
| /// ``` | ||
| /// use std::cell::Cell; | ||
| /// use wasmer::WasmCell; | ||
| /// | ||
| /// let cell = Cell::new(5); | ||
| /// let wasm_cell = WasmCell::new(&cell); | ||
| /// wasm_cell.set(10); | ||
| /// assert_eq!(cell.get(), 10); | ||
| /// ``` | ||
| #[inline] | ||
| pub fn set(&self, val: T) { | ||
| self.inner.set(val); | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.