Rename xMove and change return of resumeThread

src/lib.zig

@@ -2521,14 +2521,15 @@ pub const Lua = opaque {
 
     /// Starts and resumes a coroutine in the given thread
     /// See https://www.lua.org/manual/5.4/manual.html#lua_resume
-    fn resumeThread54(lua: *Lua, from: ?*Lua, num_args: i32, num_results: *i32) CallError!ResumeStatus {
+    fn resumeThread54(lua: *Lua, from: ?*Lua, num_args: i32) CallError!struct { ResumeStatus, i32 } {
+        var num_results: i32 = undefined;
         const from_state: ?*LuaState = if (from) |from_val| @ptrCast(from_val) else null;
-        const thread_status = c.lua_resume(@ptrCast(lua), from_state, num_args, num_results);
+        const thread_status = c.lua_resume(@ptrCast(lua), from_state, num_args, &num_results);
         switch (thread_status) {
             StatusCode.err_runtime => return error.LuaRuntime,
             StatusCode.err_memory => return error.OutOfMemory,
             StatusCode.err_error => return error.LuaMsgHandler,
-            else => return @enumFromInt(thread_status),
+            else => return .{ @enumFromInt(thread_status), num_results },
         }
     }
 
@@ -3099,7 +3100,7 @@ pub const Lua = opaque {
     /// * Lua Runtime Errors: `none`
     ///
     /// See https://www.lua.org/manual/5.4/manual.html#lua_xmove
-    pub fn xMove(lua: *Lua, to: *Lua, num: i32) void {
+    pub fn moveToThread(lua: *Lua, to: *Lua, num: i32) void {
         c.lua_xmove(@ptrCast(lua), @ptrCast(to), num);
     }
 

src/tests.zig

@@ -939,7 +939,7 @@ test "threads" {
     lua.pushInteger(10);
     lua.pushNil();
 
-    lua.xMove(new_thread, 2);
+    lua.moveToThread(new_thread, 2);
     try expectEqual(2, new_thread.getTop());
 }
 
@@ -1148,14 +1148,15 @@ test "yielding" {
     if (zlua.lang == .lua54 or zlua.lang == .lua55) {
         try expect(thread.isYieldable());
 
-        var results: i32 = undefined;
         while (i < 5) : (i += 1) {
-            try expectEqual(.yield, try thread.resumeThread(lua, 0, &results));
+            const status, const num_results = try thread.resumeThread(lua, 0);
+            try expectEqual(.yield, status);
+            try expectEqual(1, num_results);
             try expectEqual(i, try thread.toInteger(-1));
-            thread.pop(results);
+            thread.pop(num_results);
         }
 
-        try expectEqual(.ok, try thread.resumeThread(lua, 0, &results));
+        try expectEqual(.ok, (try thread.resumeThread(lua, 0))[0]);
     } else {
         // Lua 5.3
         try expect(!thread.isYieldable());
@@ -1258,12 +1259,11 @@ test "resuming" {
     );
     _ = thread.getGlobal("counter");
 
-    var num_results: i32 = 0;
     var i: i32 = 1;
     while (i <= 5) : (i += 1) {
         try expectEqual(.yield, switch (zlua.lang) {
             .lua51, .luajit => thread.resumeThread(0),
-            .lua54, .lua55 => thread.resumeThread(lua, 0, &num_results),
+            .lua54, .lua55 => (try thread.resumeThread(lua, 0))[0],
             else => thread.resumeThread(lua, 0),
         });
 
@@ -1273,7 +1273,7 @@ test "resuming" {
 
     try expectEqual(.ok, switch (zlua.lang) {
         .lua51, .luajit => thread.resumeThread(0),
-        .lua54, .lua55 => thread.resumeThread(lua, 0, &num_results),
+        .lua54, .lua55 => (try thread.resumeThread(lua, 0))[0],
         else => thread.resumeThread(lua, 0),
     });