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More fleshing out on runtime.

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Gav
2018-01-09 15:05:41 +01:00
parent b104f5e6e4
commit 88d66681f6
14 changed files with 68 additions and 56 deletions
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substrate/wasm-runtime/support/src/lib.rs
+7 -4
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@@ -7,7 +7,10 @@
//#[macro_use]
extern crate alloc;
pub use alloc::vec::Vec;
use core::mem;
pub use alloc::boxed::Box;
pub use alloc::rc::Rc;
pub use core::mem::{transmute, size_of, uninitialized};
pub use core::cell::{RefCell, Ref, RefMut};
extern crate pwasm_libc;
extern crate pwasm_alloc;
@@ -37,11 +40,11 @@ pub fn storage(key: &[u8]) -> Vec<u8> {
pub fn storage_into<T: Sized>(key: &[u8]) -> Option<T> {
let mut result: T;
let size = mem::size_of::<T>();
let size = size_of::<T>();
let written;
unsafe {
result = mem::uninitialized();
let result_as_byte_blob = mem::transmute::<*mut T, *mut u8>(&mut result);
result = uninitialized();
let result_as_byte_blob = transmute::<*mut T, *mut u8>(&mut result);
written = ext_get_storage_into(&key[0], key.len() as u32, result_as_byte_blob, size as u32) as usize;
}
// Only return a fully written value.