aaaaaa macro magic!

src/wasm_sys.rs

@@ -1,5 +1,7 @@
+#[macro_use]
 #[repr(usize)]
-pub enum SysCall {
+declum! {
+   SysCall,
    KILL = 0,              // Provide a PID
    CONSOLE_RESET = 1,     // Reset the console
    CONSOLE_IN = 2,        // Console Input
@@ -32,37 +34,24 @@ pub enum SysCall {
    FILE_WRITE = 31,
 
    // Security Syscalls
-   ENCRYPT = 50,
-   EMPTY = u32::MAX as usize,
+   ENCRYPT = 50;
+   EMPTY = u32::MAX as usize
 }
 
-impl From<usize> for SysCall {
-   fn from(n: usize) -> Self {
-      match n {
-         0x0 => Self::KILL,
-         0x1 => Self::CONSOLE_RESET,
-         0x2 => Self::CONSOLE_IN,
-         0x3 => Self::CONSOLE_OUT,
-         0x4 => Self::CONSOLE_GET_TITLE,
-         0x5 => Self::CONSOLE_SET_TITLE,
-         0xA => Self::GET_PRIORITY,
-         0xB => Self::SET_PRIORITY,
-         0xC => Self::GET_HOSTNAME,
-         0xD => Self::SET_HOSTNAME,
-         0x14 => Self::GET_CONFIG,
-         0x15 => Self::SET_CONFIG,
-         0x16 => Self::MAKE_DIRECTORY,
-         0x17 => Self::DELETE_DIRECTORY,
-         0x18 => Self::RENAME_DIRECTORY,
-         0x19 => Self::SET_DIRECTORY_ACCESS,
-         0x1A => Self::MAKE_FILE,
-         0x1B => Self::DELETE_FILE,
-         0x1C => Self::RENAME_FILE,
-         0x1D => Self::SET_FILE_ACCESS,
-         0x1E => Self::FILE_READ,
-         0x1F => Self::FILE_WRITE,
-         0x32 => Self::ENCRYPT,
-         _ => Self::EMPTY,
+macro_rules! declum {
+   ($nym:ident, $($variant:ident = $value:expr),*; $catch_all:ident = $max:expr) => {
+      pub enum $nym {
+         $($variant = $value),*
+         $catch_all = $max
       }
-   }
+
+      impl From<usize> for $nym {
+         fn from(n: usize) -> Self {
+            match n {
+               $($value => Self::$variant),*
+               _ => Self::$catch_all
+            }
+         }
+      }
+   };
 }