Vendor dependencies for 0.3.0 release

vendor/heapless/src/sealed.rs

@@ -0,0 +1,58 @@
+#[allow(dead_code)]
+#[allow(path_statements)]
+pub(crate) const fn smaller_than<const N: usize, const MAX: usize>() {
+    Assert::<N, MAX>::LESS;
+}
+
+#[allow(dead_code)]
+#[allow(path_statements)]
+pub(crate) const fn greater_than_eq_0<const N: usize>() {
+    Assert::<N, 0>::GREATER_EQ;
+}
+
+#[allow(dead_code)]
+#[allow(path_statements)]
+pub(crate) const fn greater_than_0<const N: usize>() {
+    Assert::<N, 0>::GREATER;
+}
+
+#[allow(dead_code)]
+#[allow(path_statements)]
+pub(crate) const fn greater_than_1<const N: usize>() {
+    Assert::<N, 1>::GREATER;
+}
+
+#[allow(dead_code)]
+#[allow(path_statements)]
+pub(crate) const fn power_of_two<const N: usize>() {
+    Assert::<N, 0>::GREATER;
+    Assert::<N, 0>::POWER_OF_TWO;
+}
+
+#[allow(dead_code)]
+/// Const assert hack
+pub struct Assert<const L: usize, const R: usize>;
+
+#[allow(dead_code)]
+impl<const L: usize, const R: usize> Assert<L, R> {
+    /// Const assert hack
+    pub const GREATER_EQ: usize = L - R;
+
+    /// Const assert hack
+    pub const LESS_EQ: usize = R - L;
+
+    /// Const assert hack
+    pub const NOT_EQ: isize = 0 / (R as isize - L as isize);
+
+    /// Const assert hack
+    pub const EQ: usize = (R - L) + (L - R);
+
+    /// Const assert hack
+    pub const GREATER: usize = L - R - 1;
+
+    /// Const assert hack
+    pub const LESS: usize = R - L - 1;
+
+    /// Const assert hack
+    pub const POWER_OF_TWO: usize = 0 - (L & (L - 1));
+}