Pulse wire crate

pulse-wire/src/lib.rs

@@ -0,0 +1,85 @@
+pub mod terminal;
+
+pub trait PulseCom {
+    fn to_com(&self) -> Vec<u8>;
+    fn from_com(_com: &mut Vec<u8>) -> Self;
+}
+
+impl<T: PulseCom> PulseCom for Vec<T> {
+    fn to_com(&self) -> Vec<u8> {
+        let mut vec = Vec::new();
+
+        vec.extend_from_slice(&(self.len() as u32).to_le_bytes());
+
+        for item in self {
+            vec.extend(item.to_com());
+        }
+
+        vec
+    }
+
+    fn from_com(com: &mut Vec<u8>) -> Self {
+        let len_bytes: [u8; 4] = com.drain(..4).collect::<Vec<_>>().try_into().unwrap();
+
+        let len = u32::from_le_bytes(len_bytes) as usize;
+
+        let mut result = Vec::with_capacity(len);
+
+        for _ in 0..len {
+            result.push(T::from_com(com));
+        }
+
+        result
+    }
+}
+
+impl PulseCom for String {
+    fn to_com(&self) -> Vec<u8> {
+        let bytes = self.as_bytes();
+        let mut out = Vec::with_capacity(4 + bytes.len());
+
+        out.extend_from_slice(&(bytes.len() as u32).to_le_bytes());
+        out.extend_from_slice(bytes);
+
+        out
+    }
+
+    fn from_com(com: &mut Vec<u8>) -> Self {
+        let len = u32::from_le_bytes(com[..4].try_into().unwrap()) as usize;
+        com.drain(..4);
+
+        let bytes: Vec<u8> = com.drain(..len).collect();
+        String::from_utf8(bytes).unwrap()
+    }
+}
+
+macro_rules! int_com {
+    ($t:ty) => {
+        impl PulseCom for $t {
+            fn to_com(&self) -> Vec<u8> {
+                self.to_le_bytes().to_vec()
+            }
+
+            fn from_com(com: &mut Vec<u8>) -> Self {
+                const N: usize = std::mem::size_of::<$t>();
+                let bytes: [u8; N] = com.drain(..N).collect::<Vec<_>>().try_into().unwrap();
+                <$t>::from_le_bytes(bytes)
+            }
+        }
+    };
+}
+
+int_com!(i8);
+int_com!(i16);
+int_com!(i32);
+int_com!(i64);
+int_com!(isize);
+
+int_com!(u8);
+int_com!(u16);
+int_com!(u32);
+int_com!(u64);
+int_com!(usize);
+
+int_com!(f64);
+int_com!(f32);