own ConstZero/One

Author: burrbull

ci/script.sh

@@ -43,7 +43,6 @@ main() {
     echo 'cortex-m = "0.7.7"'    >> $td/Cargo.toml
     echo 'cortex-m-rt = "0.7.3"' >> $td/Cargo.toml
     echo 'vcell = "0.1.3"'       >> $td/Cargo.toml
-    echo 'num-traits = { version = "0.2.19", default-features = false }' >> $td/Cargo.toml
     if [[ "$options" == *"--atomics"* ]]; then
         echo 'portable-atomic = { version = "1.4", default-features = false }' >> $td/Cargo.toml
     fi

ci/svd2rust-regress/src/svd_test.rs

@@ -13,7 +13,6 @@ use std::{
 
 const CRATES_ALL: &[&str] = &[
     "critical-section = {version = \"1.0\", optional = true}",
-    "num-traits = { version = \"0.2.19\", default-features = false }",
     "vcell = \"0.1.2\"",
 ];
 const CRATES_MSP430: &[&str] = &["msp430 = \"0.4.0\"", "msp430-rt = \"0.4.0\""];

src/generate/generic.rs

@@ -1,5 +1,16 @@
 use core::marker;
-use num_traits::{ConstOne, ConstZero};
+
+/// Defines an associated constant representing the additive identity element
+/// for `Self`.
+pub trait ConstZero {
+    /// The additive identity element of `Self`, `0`.
+    const ZERO: Self;
+}
+
+pub trait ConstOne {
+    /// The multiplicative identity element of `Self`, `1`.
+    const ONE: Self;
+}
 
 /// Raw register type (`u8`, `u16`, `u32`, ...)
 pub trait RawReg:
@@ -26,6 +37,12 @@ macro_rules! raw_reg {
                 $mask::<WI>()
             }
         }
+        impl ConstZero for $U {
+            const ZERO: Self = 0;
+        }
+        impl ConstOne for $U {
+            const ONE: Self = 1;
+        }
         const fn $mask<const WI: u8>() -> $U {
             <$U>::MAX >> ($size - WI)
         }

src/lib.rs

@@ -62,7 +62,6 @@
 //! - [`cortex-m`](https://crates.io/crates/cortex-m) >=v0.7.6
 //! - [`cortex-m-rt`](https://crates.io/crates/cortex-m-rt) >=v0.6.13
 //! - [`vcell`](https://crates.io/crates/vcell) >=v0.1.2
-//! - [`num-traits`](https://crates.io/crates/const-default) >=v0.2.18
 //!
 //! Furthermore, the "device" feature of `cortex-m-rt` must be enabled when the `rt` feature
 //! is enabled. The `Cargo.toml` of the device crate will look like this:
@@ -127,7 +126,6 @@
 //! - [`msp430`](https://crates.io/crates/msp430) v0.4.x
 //! - [`msp430-rt`](https://crates.io/crates/msp430-rt) v0.4.x
 //! - [`vcell`](https://crates.io/crates/vcell) v0.1.x
-//! - [`num-traits`](https://crates.io/crates/const-default) v0.2.x
 //!
 //! The "device" feature of `msp430-rt` must be enabled when the `rt` feature is
 //! enabled. The `Cargo.toml` of the device crate will look like this:
@@ -138,7 +136,6 @@
 //! msp430 = "0.4.0"
 //! msp430-rt = { version = "0.4.0", optional = true }
 //! vcell = "0.1.0"
-//! num-traits = { version = "0.2.19", default-features = false }
 //!
 //! [features]
 //! rt = ["msp430-rt/device"]
@@ -156,7 +153,6 @@
 //! - [`riscv-peripheral`](https://crates.io/crates/riscv-peripheral) v0.2.x (if target is RISC-V and has standard peripherals)
 //! - [`riscv-rt`](https://crates.io/crates/riscv-rt) v0.13.x (if target is RISC-V)
 //! - [`vcell`](https://crates.io/crates/vcell) v0.1.x
-//! - [`num-traits`](https://crates.io/crates/const-default) v0.2.x
 //!
 //! The `*-rt` dependencies must be optional only enabled when the `rt` feature is enabled.
 //! If target is RISC-V and supports vectored mode, you must include a feature `v-trap` to activate `riscv-rt/v-trap`.
@@ -169,7 +165,6 @@
 //! riscv-peripheral = "0.2.0"
 //! riscv-rt = { version = "0.13.0", optional = true }
 //! vcell = "0.1.0"
-//! num-traits = { version = "0.2.19", default-features = false }
 //!
 //! [features]
 //! rt = ["riscv-rt"]