update to syn2

CHANGELOG.md

@@ -7,12 +7,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/).
 
 ## [Unreleased]
 
+- Updated syn to version 2 (#732)
+
 ## [v0.29.0] - 2023-06-05
 
 - `FieldFpec` instead or `fty` generic (#722)
 - print error on ci `curl` request fail (#725)
 - removed `rty` generic in `FieldWriter` (#721)
-- `bool` and `u8` as default generics for `BitReader/Writer` and `FieldReader/Writer` (#720) 
+- `bool` and `u8` as default generics for `BitReader/Writer` and `FieldReader/Writer` (#720)
 - Bump MSRV to 1.65 (#711)
 - Optimize case change/sanitize (#715)
 - Fix dangling implicit derives (#703)

Cargo.toml

@@ -67,5 +67,5 @@ features = ["serde"]
 version = "0.14.1"
 
 [dependencies.syn]
-version = "1.0"
+version = "2.0"
 features = ["full","extra-traits"]

src/generate/peripheral.rs

@@ -16,8 +16,8 @@ use quote::{quote, ToTokens};
 use syn::{punctuated::Punctuated, Token};
 
 use crate::util::{
-    self, array_proxy_type, name_to_ty, new_syn_u32, path_segment, type_path, unsuffixed, Config,
-    FullName, ToSanitizedCase, BITS_PER_BYTE,
+    self, array_proxy_type, name_to_ty, path_segment, type_path, unsuffixed, Config, FullName,
+    ToSanitizedCase, BITS_PER_BYTE,
 };
 use anyhow::{anyhow, bail, Context, Result};
 
@@ -1393,21 +1393,16 @@ fn new_syn_field(ident: Ident, ty: syn::Type) -> syn::Field {
     let span = Span::call_site();
     syn::Field {
         ident: Some(ident),
-        vis: syn::Visibility::Public(syn::VisPublic {
-            pub_token: Token![pub](span),
-        }),
+        vis: syn::Visibility::Public(Token![pub](span)),
         attrs: vec![],
         colon_token: Some(Token![:](span)),
         ty,
+        mutability: syn::FieldMutability::None,
     }
 }
 
 fn new_syn_array(ty: syn::Type, len: u32) -> syn::Type {
     let span = Span::call_site();
-    syn::Type::Array(syn::TypeArray {
-        bracket_token: syn::token::Bracket { span },
-        elem: ty.into(),
-        semi_token: Token![;](span),
-        len: new_syn_u32(len, span),
-    })
+    let len = unsuffixed(len as _);
+    syn::parse_quote_spanned!( span => [#ty; #len] )
 }

src/util.rs

@@ -10,7 +10,7 @@ use std::path::{Path, PathBuf};
 use svd_rs::{MaybeArray, Peripheral, PeripheralInfo};
 
 use syn::{
-    punctuated::Punctuated, token::Colon2, AngleBracketedGenericArguments, GenericArgument, Lit,
+    punctuated::Punctuated, token::PathSep, AngleBracketedGenericArguments, GenericArgument, Lit,
     LitInt, PathArguments, PathSegment, Token, Type, TypePath,
 };
 
@@ -473,7 +473,7 @@ pub fn ident_to_path(ident: Ident) -> TypePath {
     type_path(segments)
 }
 
-pub fn type_path(segments: Punctuated<PathSegment, Colon2>) -> TypePath {
+pub fn type_path(segments: Punctuated<PathSegment, PathSep>) -> TypePath {
     TypePath {
         qself: None,
         path: syn::Path {