Phase 1 of repo reorg (#719)

* Remove unneeded script * Rename Substrate Demo -> Substrate * Rename demo -> node * Build wasm from last rename. * Merge ed25519 into substrate-primitives * Minor tweak * Rename substrate -> core * Move substrate-runtime-support to core/runtime/support * Rename/move substrate-runtime-version * Move codec up a level * Rename substrate-codec -> parity-codec * Move environmental up a level * Move pwasm-* up to top, ready for removal * Remove requirement of s-r-support from s-r-primitives * Move core/runtime/primitives into core/runtime-primitives * Remove s-r-support dep from s-r-version * Remove dep of s-r-support from bft * Remove dep of s-r-support from node/consensus * Sever all other core deps from s-r-support * Forgot the no_std directive * Rename non-SRML modules to sr-* to avoid match clashes * Move runtime/* to srml/* * Rename substrate-runtime-* -> srml-* * Move srml to top-level
2026-06-19 13:31:04 +00:00 · 2018-09-12 11:13:31 +02:00
parent 8fe5aa4c81
commit 1e01162505
374 changed files with 2845 additions and 2902 deletions
@@ -0,0 +1,70 @@
+// Copyright 2018 Parity Technologies (UK) Ltd.
+// This file is part of Substrate.
+
+// Substrate 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.
+
+// Substrate 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 Substrate.  If not, see <http://www.gnu.org/licenses/>.
+
+#[doc(hidden)]
+pub mod imp {
+	pub use core::cell::RefCell;
+	pub use core::mem::transmute;
+	pub use core::mem::replace;
+	pub use core::marker::PhantomData;
+
+	// This code is a simplified version of [`LocalKey`] and it's wasm32 specialization: [`statik::Key`].
+	// [`LocalKey`]: https://github.com/alexcrichton/rust/blob/98931165a23a1c2860d99759385f45d6807c8982/src/libstd/thread/local.rs#L89
+	// [`statik::Key`]: https://github.com/alexcrichton/rust/blob/98931165a23a1c2860d99759385f45d6807c8982/src/libstd/thread/local.rs#L310-L312
+
+	pub struct LocalKey<T: 'static> {
+		pub init: fn() -> T,
+		pub inner: RefCell<Option<T>>,
+	}
+
+	// This is safe as long there is no threads in wasm32.
+	unsafe impl<T: 'static> ::core::marker::Sync for LocalKey<T> { }
+
+	impl<T: 'static> LocalKey<T> {
+		pub const fn new(init: fn() -> T) -> LocalKey<T> {
+			LocalKey {
+				init,
+				inner: RefCell::new(None),
+			}
+		}
+
+		pub fn with<F, R>(&'static self, f: F) -> R
+		where F: FnOnce(&T) -> R
+		{
+			if self.inner.borrow().is_none() {
+				let v = (self.init)();
+				*self.inner.borrow_mut() = Some(v);
+			}
+			// This code can't panic because:
+			// 1. `inner` can be borrowed mutably only once at the initialization time.
+			// 2. After the initialization `inner` is always `Some`.
+			f(&*self.inner.borrow().as_ref().unwrap())
+		}
+	}
+}
+
+#[doc(hidden)]
+#[macro_export]
+macro_rules! thread_local_impl {
+	($(#[$attr:meta])* static $name:ident: $t:ty = $init:expr) => (
+		$(#[$attr])*
+		static $name: $crate::imp::LocalKey<$t> = {
+			fn __init() -> $t { $init }
+
+			$crate::imp::LocalKey::new(__init)
+		};
+	);
+}