feat: use proc_macro_error2.

Author: ya7010

serde_valid_derive/Cargo.toml

@@ -18,7 +18,7 @@ proc-macro = true
 [dependencies]
 itertools.workspace = true
 paste.workspace = true
-proc-macro-error = "^1.0"
+proc-macro-error2 = { version = "2.0.0", default-features = false }
 proc-macro2 = "^1.0"
 quote = "^1.0"
 strsim = "0.11.0"

serde_valid_derive/src/lib.rs

@@ -10,7 +10,7 @@ use derive::expand_derive;
 use error::to_compile_errors;
 use error::{Error, Errors};
 use proc_macro::TokenStream;
-use proc_macro_error::proc_macro_error;
+use proc_macro_error2::proc_macro_error;
 use syn::{parse_macro_input, DeriveInput};
 
 #[proc_macro_derive(Validate, attributes(rule, validate, serde_valid))]

serde_valid_derive/src/types/field/named.rs

@@ -1,5 +1,5 @@
 use super::Field;
-use proc_macro_error::abort;
+use proc_macro_error2::abort;
 use quote::quote;
 use std::borrow::Cow;
 use syn::spanned::Spanned;

serde_valid_derive/src/types/field/unnamed.rs

@@ -1,5 +1,5 @@
 use super::Field;
-use proc_macro_error::abort;
+use proc_macro_error2::abort;
 use quote::quote;
 use std::borrow::Cow;
 use std::convert::AsRef;

serde_valid_derive/src/types/single_ident_path.rs

@@ -1,4 +1,4 @@
-use proc_macro_error::abort;
+use proc_macro_error2::abort;
 use syn::spanned::Spanned;
 
 pub struct SingleIdentPath<'a>(&'a syn::Path);