Merge pull request #318 from dusk-network/duskc-0.2.0

Update `duskc` to `0.2.0`

Author: Eduardo Leegwater Simões

Makefile

@@ -1,7 +1,7 @@
 help: ## Display this help screen
 	@grep -h -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-15s\033[0m %s\n", $$1, $$2}'
 
-COMPILER_VERSION=v0.1.0
+COMPILER_VERSION=v0.2.0
 
 setup-compiler: ## Setup the Dusk Contract Compiler
 	@./scripts/setup-compiler.sh $(COMPILER_VERSION)

piecrust-uplink/src/abi/state.rs

@@ -22,21 +22,21 @@ use crate::{
 pub mod arg_buf {
     use crate::ARGBUF_LEN;
 
+    use core::ptr;
+    use core::slice;
+
     #[no_mangle]
     static mut A: [u64; ARGBUF_LEN / 8] = [0; ARGBUF_LEN / 8];
 
     pub fn with_arg_buf<F, R>(f: F) -> R
     where
         F: FnOnce(&mut [u8]) -> R,
     {
-        let buf = unsafe { &mut A };
-        let first = &mut buf[0];
-        let slice = unsafe {
-            let first_byte: &mut u8 = core::mem::transmute(first);
-            core::slice::from_raw_parts_mut(first_byte, ARGBUF_LEN)
-        };
-
-        f(slice)
+        unsafe {
+            let addr = ptr::addr_of_mut!(A);
+            let slice = slice::from_raw_parts_mut(addr as _, ARGBUF_LEN);
+            f(slice)
+        }
     }
 }