Merge pull request #746 from rust-embedded/derive-field

fix field derive

Author: Emilgardis

.github/workflows/ci.yml

@@ -79,7 +79,7 @@ jobs:
           - { rust: stable, vendor: Toshiba, options: all }
           - { rust: stable, vendor: Toshiba, options: "" }
           # Test MSRV
-          - { rust: 1.65.0, vendor: Nordic, options: "" }
+          - { rust: 1.70.0, vendor: Nordic, options: "" }
           # Use nightly for architectures which don't support stable
           - { rust: nightly, vendor: MSP430, options: "--atomics" }
           - { rust: nightly, vendor: MSP430, options: "" }

CHANGELOG.md

@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/).
 
 ## [Unreleased]
 
+- Bump MSRV to 1.70
+- Fix `derivedFrom` on field
+
 ## [v0.30.0] - 2023-08-16
 
 - Add `aarch64` target for releases, more readme badges

Cargo.toml

@@ -25,7 +25,7 @@ name = "svd2rust"
 repository = "https://github.com/rust-embedded/svd2rust/"
 version = "0.30.0"
 readme = "README.md"
-rust-version = "1.65"
+rust-version = "1.70"
 
 [package.metadata.deb]
 section = "rust"

README.md

@@ -1,5 +1,5 @@
 ![GitHub top language](https://img.shields.io/github/languages/top/rust-embedded/svd2rust)
-![Minimum Supported Rust Version](https://img.shields.io/badge/rustc-1.65+-blue.svg)
+![Minimum Supported Rust Version](https://img.shields.io/badge/rustc-1.70+-blue.svg)
 [![crates.io](https://img.shields.io/crates/v/svd2rust.svg)](https://crates.io/crates/svd2rust)
 [![crates.io](https://img.shields.io/crates/d/svd2rust.svg)](https://crates.io/crates/svd2rust)
 [![Released API docs](https://docs.rs/svd2rust/badge.svg)](https://docs.rs/svd2rust)

src/generate/register.rs

@@ -554,12 +554,11 @@ pub fn fields(
     let inline = quote! { #[inline(always)] };
     for &f in fields.iter() {
         let mut f = f.clone();
-        let mut fpath = None;
-        let dpath = f.derived_from.take();
-        if let Some(dpath) = dpath {
-            fpath = derive_field(&mut f, &dpath, rpath, index)?;
+        let mut fdpath = None;
+        if let Some(dpath) = f.derived_from.take() {
+            fdpath = derive_field(&mut f, &dpath, rpath, index)?;
         }
-        let fpath = fpath.unwrap_or_else(|| rpath.new_field(&f.name));
+        let fpath = rpath.new_field(&f.name);
         // TODO(AJM) - do we need to do anything with this range type?
         let BitRange { offset, width, .. } = f.bit_range;
 
@@ -601,10 +600,12 @@ pub fn fields(
             let dpath = ev.derived_from.take();
             if let Some(dpath) = dpath {
                 epath = Some(derive_enumerated_values(&mut ev, &dpath, &fpath, index)?);
-            }
-            // TODO: remove this hack
-            if let Some(epath) = epath.as_ref() {
-                ev = (*index.evs.get(epath).unwrap()).clone();
+                // TODO: remove this hack
+                if let Some(epath) = epath.as_ref() {
+                    ev = (*index.evs.get(epath).unwrap()).clone();
+                }
+            } else if let Some(path) = fdpath.as_ref() {
+                epath = Some(path.new_enum(ev.name.clone().unwrap_or_else(|| path.name.clone())));
             }
             lookup_results.push((ev, epath));
         }