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chore: remove unused traits for wasm interface (#12792)

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yjh
2022-11-30 19:21:45 +08:00
committed by GitHub
parent 6a5bac18d2
commit fa19235782
1 changed files with 0 additions and 42 deletions
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substrate/primitives/wasm-interface/src/lib.rs
-42
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@@ -627,48 +627,6 @@ impl_into_and_from_value! {
i64, I64,
}
/// Something that can write a primitive to wasm memory location.
pub trait WritePrimitive<T: PointerType> {
/// Write the given value `t` to the given memory location `ptr`.
fn write_primitive(&mut self, ptr: Pointer<T>, t: T) -> Result<()>;
}
impl WritePrimitive<u32> for &mut dyn FunctionContext {
fn write_primitive(&mut self, ptr: Pointer<u32>, t: u32) -> Result<()> {
let r = t.to_le_bytes();
self.write_memory(ptr.cast(), &r)
}
}
impl WritePrimitive<u64> for &mut dyn FunctionContext {
fn write_primitive(&mut self, ptr: Pointer<u64>, t: u64) -> Result<()> {
let r = t.to_le_bytes();
self.write_memory(ptr.cast(), &r)
}
}
/// Something that can read a primitive from a wasm memory location.
pub trait ReadPrimitive<T: PointerType> {
/// Read a primitive from the given memory location `ptr`.
fn read_primitive(&self, ptr: Pointer<T>) -> Result<T>;
}
impl ReadPrimitive<u32> for &mut dyn FunctionContext {
fn read_primitive(&self, ptr: Pointer<u32>) -> Result<u32> {
let mut r = [0u8; 4];
self.read_memory_into(ptr.cast(), &mut r)?;
Ok(u32::from_le_bytes(r))
}
}
impl ReadPrimitive<u64> for &mut dyn FunctionContext {
fn read_primitive(&self, ptr: Pointer<u64>) -> Result<u64> {
let mut r = [0u8; 8];
self.read_memory_into(ptr.cast(), &mut r)?;
Ok(u64::from_le_bytes(r))
}
}
/// Typed value that can be returned from a function.
///
/// Basically a `TypedValue` plus `Unit`, for functions which return nothing.