signals-primitives, plus various minor tweaks

substrate/signals/primitives/Cargo.toml

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+[package]
+name = "serai-signals-primitives"
+version = "0.1.0"
+description = "Signals primitives"
+license = "MIT"
+repository = "https://github.com/serai-dex/serai/tree/develop/substrate/signals/primitives"
+authors = ["Luke Parker <lukeparker5132@gmail.com>"]
+edition = "2021"
+rust-version = "1.74"
+
+[package.metadata.docs.rs]
+all-features = true
+rustdoc-args = ["--cfg", "docsrs"]
+
+[dependencies]
+zeroize = { version = "^1.5", features = ["derive"], optional = true }
+
+scale = { package = "parity-scale-codec", version = "3", default-features = false, features = ["derive"] }
+scale-info = { version = "2", default-features = false, features = ["derive"] }
+
+borsh = { version = "1", default-features = false, features = ["derive", "de_strict_order"], optional = true }
+serde = { version = "1", default-features = false, features = ["derive", "alloc"], optional = true }
+
+serai-primitives = { path = "../../primitives", version = "0.1", default-features = false }
+
+[features]
+std = [
+  "zeroize",
+
+  "scale/std",
+  "scale-info/std",
+
+  "borsh?/std",
+  "serde?/std",
+
+  "serai-primitives/std",
+]
+
+borsh = ["dep:borsh"]
+serde = ["dep:serde"]
+
+default = ["std"]

substrate/signals/primitives/LICENSE

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+MIT License
+
+Copyright (c) 2023 Luke Parker
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

substrate/signals/primitives/src/lib.rs

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+#![cfg_attr(docsrs, feature(doc_cfg))]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
+#![cfg_attr(not(feature = "std"), no_std)]
+
+use scale::{Encode, Decode, MaxEncodedLen};
+use scale_info::TypeInfo;
+
+use serai_primitives::NetworkId;
+
+#[derive(Clone, Copy, PartialEq, Eq, Debug, Encode, Decode, MaxEncodedLen, TypeInfo)]
+#[cfg_attr(feature = "std", derive(zeroize::Zeroize))]
+#[cfg_attr(feature = "borsh", derive(borsh::BorshSerialize, borsh::BorshDeserialize))]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
+pub enum SignalId {
+  Retirement([u8; 32]),
+  Halt(NetworkId),
+}