chore: use proc-macro-error2 (#723)

Cargo.toml

@@ -55,7 +55,7 @@ serde = { version = "1.0", default-features = false, features = ["alloc"] }
 serde_json = { version = "1.0", default-features = false, features = ["alloc"] }
 
 # macros
-proc-macro-error = "1.0"
+proc-macro-error2 = "2.0.0"
 proc-macro2 = "1.0"
 quote = "1.0"
 syn = "2.0"

crates/sol-macro-expander/Cargo.toml

@@ -31,7 +31,7 @@ syn = { workspace = true, features = ["extra-traits"] }
 heck = "0.5"
 hex.workspace = true
 indexmap = "2"
-proc-macro-error.workspace = true
+proc-macro-error2.workspace = true
 tiny-keccak = { workspace = true, features = ["keccak"] }
 
 # json

crates/sol-macro-expander/src/expand/mod.rs

@@ -11,7 +11,7 @@ use ast::{
 };
 use indexmap::IndexMap;
 use proc_macro2::{Delimiter, Group, Ident, Punct, Spacing, Span, TokenStream, TokenTree};
-use proc_macro_error::{abort, emit_error};
+use proc_macro_error2::{abort, emit_error};
 use quote::{format_ident, quote, TokenStreamExt};
 use std::{
     borrow::Borrow,

crates/sol-macro-expander/src/expand/struct.rs

@@ -207,7 +207,7 @@ fn expand_encode_type_fns(
             Some(Item::Enum(_)) => *ty = Type::Uint(ty.span(), NonZeroU16::new(8)),
             Some(Item::Udt(udt)) => *ty = udt.ty.clone(),
             Some(item) => {
-                proc_macro_error::abort!(item.span(), "Invalid type in struct field: {:?}", item)
+                proc_macro_error2::abort!(item.span(), "Invalid type in struct field: {:?}", item)
             }
         }
     });

crates/sol-macro-expander/src/expand/ty.rs

@@ -3,7 +3,7 @@
 use super::{ExpCtxt, ExternCrates};
 use ast::{Item, Parameters, Spanned, Type, TypeArray};
 use proc_macro2::{Ident, Literal, TokenStream};
-use proc_macro_error::abort;
+use proc_macro_error2::abort;
 use quote::{quote_spanned, ToTokens};
 use std::{fmt, num::NonZeroU16};
 

crates/sol-macro/Cargo.toml

@@ -27,7 +27,7 @@ workspace = true
 alloy-sol-macro-input.workspace = true
 alloy-sol-macro-expander.workspace = true
 
-proc-macro-error.workspace = true
+proc-macro-error2.workspace = true
 proc-macro2.workspace = true
 quote.workspace = true
 syn = { workspace = true, features = ["extra-traits"] }

crates/sol-macro/src/lib.rs

@@ -15,7 +15,7 @@
 #![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
 
 #[macro_use]
-extern crate proc_macro_error;
+extern crate proc_macro_error2;
 
 use alloy_sol_macro_expander::expand;
 use alloy_sol_macro_input::{SolAttrs, SolInput, SolInputExpander, SolInputKind};