Make thiserror an optional dependency

The `thiserror` crate has been made an optional dependency in order to support both `std` and `no_std` environments. This change is reflected in the `Cargo.toml` and related Rust files. The SDK version has been updated as a result.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "uniswap-sdk-core"
-version = "0.25.0"
+version = "0.26.0"
 edition = "2021"
 authors = ["malik <[email protected]>", "Shuhui Luo <twitter.com/aureliano_law>"]
 description = "The Uniswap SDK Core in Rust provides essential functionality for interacting with the Uniswap decentralized exchange"
@@ -16,9 +16,10 @@ num-integer = "0.1"
 num-traits = "0.2"
 regex = { version = "1.10", optional = true }
 rustc-hash = "2.0"
-thiserror = "1.0"
+thiserror = { version = "1.0", optional = true }
 
 [features]
+std = ["thiserror"]
 validate_parse_address = ["eth_checksum", "regex"]
 
 [lib]

src/error.rs

@@ -1,26 +1,25 @@
-use crate::prelude::*;
-
 /// Represents errors that can occur in the context of currency operations.
-#[derive(Debug, Error, Clone, Copy)]
+#[derive(Debug, Clone, Copy)]
+#[cfg_attr(feature = "std", derive(thiserror::Error))]
 pub enum Error {
-    /// Triggers when compared Chain Ids do not match
-    #[error("Chain IDs do not match: {0} and {1}")]
+    /// Triggers when the compared chain ids do not match
+    #[cfg_attr(feature = "std", error("Chain IDs do not match: {0} and {1}"))]
     ChainIdMismatch(u64, u64),
 
-    /// Triggers when comapred addresses are the smae
-    #[error("Addresses are equal")]
+    /// Triggers when compared addresses are the same
+    #[cfg_attr(feature = "std", error("Addresses are equal"))]
     EqualAddresses,
 
     /// Triggers when it tries to exceed the max uint
-    #[error("amount has exceeded MAX_UINT256")]
+    #[cfg_attr(feature = "std", error("amount has exceeded MAX_UINT256"))]
     MaxUint,
 
     ///Triggers when the Compared values are not equal
-    #[error("not equal")]
+    #[cfg_attr(feature = "std", error("not equal"))]
     NotEqual(),
 
-    /// Triggers when The value is inccorrrect
-    #[error("incorrect")]
+    /// Triggers when The value is incorrect
+    #[cfg_attr(feature = "std", error("incorrect"))]
     Incorrect(),
 }
 

src/examples/mod.rs

@@ -1,2 +1 @@
-///token example
 pub mod token_example;

src/lib.rs

@@ -2,7 +2,8 @@
 //!
 //! The Uniswap SDK Core in Rust provides essential functionality for interacting with the Uniswap
 //! decentralized exchange.
-//! #![cfg_attr(not(test), no_std)]
+//!
+#![cfg_attr(not(any(feature = "std", test)), no_std)]
 #![warn(
     missing_copy_implementations,
     missing_debug_implementations,

src/prelude.rs

@@ -31,4 +31,3 @@ pub use num_bigint::{BigInt, BigUint, ToBigInt, ToBigUint};
 pub use num_integer::Integer;
 pub use num_traits::{Num, ToPrimitive, Zero};
 pub use rustc_hash::FxHashMap;
-pub use thiserror::Error;