feat: initialize Kurdistan SDK - independent fork of Polkadot SDK

pezkuwi/teyrchain/src/wasm_api.rs

@@ -0,0 +1,37 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// This file is part of Pezkuwi.
+
+// Pezkuwi is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Pezkuwi is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Pezkuwi.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Utilities for writing teyrchain WASM.
+
+/// Load the validation params from memory when implementing a Rust teyrchain.
+///
+/// Offset and length must have been provided by the validation
+/// function's entry point.
+#[cfg(not(feature = "std"))]
+pub unsafe fn load_params(params: *const u8, len: usize) -> crate::primitives::ValidationParams {
+	let mut slice = core::slice::from_raw_parts(params, len);
+
+	codec::Decode::decode(&mut slice).expect("Invalid input data")
+}
+
+/// Allocate the validation result in memory, getting the return-pointer back.
+///
+/// As described in the crate docs, this is a pointer to the appended length
+/// of the vector.
+#[cfg(not(feature = "std"))]
+pub fn write_result(result: &crate::primitives::ValidationResult) -> u64 {
+	sp_core::to_substrate_wasm_fn_return_value(&result)
+}