feat(formatter): migrate formatter crate to Alloy

crates/fmt/Cargo.toml

@@ -13,8 +13,8 @@ repository.workspace = true
 # foundry dep
 foundry-config.workspace = true
 
-# ethers
-ethers-core.workspace = true
+# alloy
+alloy-primitives.workspace = true
 
 # parser
 solang-parser.workspace = true

crates/fmt/src/formatter.rs

@@ -13,7 +13,7 @@ use crate::{
     visit::{Visitable, Visitor},
     FormatterConfig, InlineConfig, IntTypes, NumberUnderscore,
 };
-use ethers_core::{types::H160, utils::to_checksum};
+use alloy_primitives::Address;
 use foundry_config::fmt::{MultilineFuncHeaderStyle, SingleLineBlockStyle};
 use itertools::{Either, Itertools};
 use solang_parser::pt::ImportPath;
@@ -2029,7 +2029,7 @@ impl<'a, W: Write> Visitor for Formatter<'a, W> {
             Expression::HexNumberLiteral(loc, val, unit) => {
                 // ref: https://docs.soliditylang.org/en/latest/types.html?highlight=address%20literal#address-literals
                 let val = if val.len() == 42 {
-                    to_checksum(&H160::from_str(val).expect(""), None)
+                    Address::from_str(val).expect("").to_checksum(None)
                 } else {
                     val.to_owned()
                 };

crates/fmt/src/solang_ext/ast_eq.rs

@@ -1,11 +1,11 @@
-use ethers_core::types::{H160, I256, U256};
+use alloy_primitives::{Address, I256, U256};
 use solang_parser::pt::*;
 use std::str::FromStr;
 
 /// Helper to convert a string number into a comparable one
 fn to_num(string: &str) -> I256 {
     if string.is_empty() {
-        return I256::from(0)
+        return I256::ZERO
     }
     string.replace('_', "").trim().parse().unwrap()
 }
@@ -147,7 +147,7 @@ where
 
 impl AstEq for String {
     fn ast_eq(&self, other: &Self) -> bool {
-        match (H160::from_str(self), H160::from_str(other)) {
+        match (Address::from_str(self), Address::from_str(other)) {
             (Ok(left), Ok(right)) => left.eq(&right),
             _ => self == other,
         }

crates/fmt/src/string.rs

@@ -1,4 +1,4 @@
-//! Helpfers for dealing with quoted strings
+//! Helpers for dealing with quoted strings
 
 /// The state of a character in a string with quotable components
 /// This is a simplified version of the