Add some wacky macros

gmod/src/hax.rs

@@ -0,0 +1,59 @@
+#[macro_export]
+macro_rules! __vtable_offset {
+	($name:ident = {
+		win64: $win64:literal,
+		win32: $win32:literal,
+
+		linux64: $linux64:literal,
+		linux32: $linux32:literal
+	}) => {
+		#[cfg(all(target_os = "windows", target_pointer_width = "64"))]
+		pub const $name: usize = $win64;
+
+		#[cfg(all(target_os = "windows", target_pointer_width = "32"))]
+		pub const $name: usize = $win32;
+
+		#[cfg(all(target_os = "linux", target_pointer_width = "64"))]
+		pub const $name: usize = $linux64;
+
+		#[cfg(all(target_os = "linux", target_pointer_width = "32"))]
+		pub const $name: usize = $linux32;
+	};
+}
+
+#[macro_export]
+macro_rules! __vtable_func {
+	($ty:ident = extern fn($($ident:ident: $arg:ty),*) $(-> $rtn:ty)?) => {
+		#[cfg(target_pointer_width = "64")]
+		pub type $ty = extern "fastcall" fn($($ident: $arg),*) $(-> $rtn)?;
+
+		#[cfg(all(target_os = "windows", target_pointer_width = "32"))]
+		pub type $ty = extern "thiscall" fn($($ident: $arg),*) $(-> $rtn)?;
+
+		#[cfg(all(target_os = "linux", target_pointer_width = "32"))]
+		pub type $ty = extern "C" fn($($ident: $arg),*) $(-> $rtn)?;
+	}
+}
+
+#[macro_export]
+macro_rules! __hook_func {
+	($ty:ident = extern fn $fn:ident($($ident:ident: $arg:ty),*) $(-> $rtn:ty)? $code:block) => {
+		#[cfg(target_pointer_width = "64")]
+		type $ty = extern "fastcall" fn($($ident: $arg),*) $(-> $rtn)?;
+
+		#[cfg(all(target_os = "windows", target_pointer_width = "32"))]
+		type $ty = extern "thiscall" fn($($ident: $arg),*) $(-> $rtn)?;
+
+		#[cfg(all(target_os = "linux", target_pointer_width = "32"))]
+		type $ty = extern "C" fn($($ident: $arg),*) $(-> $rtn)?;
+
+		#[cfg(target_pointer_width = "64")]
+		extern "fastcall" fn $fn($($ident: $arg),*) $(-> $rtn)? $code
+
+		#[cfg(all(target_os = "windows", target_pointer_width = "32"))]
+		extern "thiscall" fn $fn($($ident: $arg),*) $(-> $rtn)? $code
+
+		#[cfg(all(target_os = "linux", target_pointer_width = "32"))]
+		extern "C" fn $fn($($ident: $arg),*) $(-> $rtn)? $code
+	};
+}

gmod/src/lib.rs

@@ -7,5 +7,11 @@ pub use cstr;
 pub use ctor::{ctor as dllopen, dtor as dllclose};
 pub use gmod_macros::*;
 
+/// Lua interface
 pub mod lua;
+
+/// Colorful printing
 pub mod msgc;
+
+/// Advanced dark magic utilities
+pub mod hax;