#wip #draft [2.0] no_std support

.gitignore

@@ -17,3 +17,7 @@ artifacts/
 
 # Log files (e.g. memory profiling)
 *.log
+
+
+rust-toolchain.toml
+shell.nix

packages/std/Cargo.toml

@@ -12,7 +12,7 @@ readme = "README.md"
 features = ["abort", "stargate", "staking", "ibc3", "cosmwasm_1_4"]
 
 [features]
-default = ["iterator", "abort"]
+default = ["iterator", "abort", "std"]
 abort = []
 # iterator allows us to iterate over all DB items in a given range
 # optional as some merkle stores (like tries) don't support this
@@ -49,6 +49,9 @@ cosmwasm_1_3 = ["cosmwasm_1_2"]
 # It requires the host blockchain to run CosmWasm `1.4.0` or higher.
 cosmwasm_1_4 = ["cosmwasm_1_3"]
 
+unstable = ["serde/unstable", "serde-json-wasm/unstable"]
+std = ["serde/std","serde-json-wasm/std"]
+
 [dependencies]
 base64 = "0.21.0"
 cosmwasm-derive = { path = "../derive", version = "1.5.0-rc.0" }
@@ -57,11 +60,11 @@ forward_ref = "1"
 hex = "0.4"
 schemars = "0.8.3"
 sha2 = "0.10.3"
-serde = { version = "1.0.103", default-features = false, features = [
+serde = { version = "^1.0.181", default-features = false, features = [
   "derive",
   "alloc",
 ] }
-serde-json-wasm = { version = "0.5.0" }
+serde-json-wasm = { version = "1.0.0", default-features = false}
 thiserror = "1.0.26"
 bnum = "0.8.0"
 static_assertions = "1.1.0"

packages/std/src/lib.rs

@@ -1,7 +1,10 @@
 #![cfg_attr(feature = "backtraces", feature(error_generic_member_access))]
 #![cfg_attr(feature = "backtraces", feature(provide_any))]
+#![no_std]
 
 extern crate alloc;
+#[cfg(test)]
+extern crate std;
 
 // Exposed on all platforms
 

packages/std/src/sections.rs

@@ -1,3 +1,4 @@
+use alloc::vec::Vec;
 use crate::conversion::force_to_u32;
 
 /// A sections decoder for the special case of two elements

packages/std/src/storage.rs

@@ -1,5 +1,6 @@
 use alloc::collections::BTreeMap;
 use core::fmt;
+use alloc::vec::Vec;
 #[cfg(feature = "iterator")]
 use core::iter;
 #[cfg(feature = "iterator")]

packages/std/src/testing/shuffle.rs

@@ -1,3 +1,4 @@
+use alloc::vec::Vec;
 /// Performs a perfect shuffle (in shuffle)
 ///
 /// https://en.wikipedia.org/wiki/Riffle_shuffle_permutation#Perfect_shuffles

packages/std/src/traits.rs

@@ -1,5 +1,6 @@
 use core::marker::PhantomData;
 use core::ops::Deref;
+use alloc::vec::Vec;
 use serde::{de::DeserializeOwned, Serialize};
 
 use crate::addresses::{Addr, CanonicalAddr};

packages/std/src/types.rs

@@ -1,6 +1,7 @@
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 
+use alloc::vec::Vec;
 use crate::addresses::Addr;
 use crate::coin::Coin;
 use crate::timestamp::Timestamp;