Merge pull request #430 from luoliwoshang/lua

[WIP] llgo/c/lua

c/lua/_demo/coroutine/coroutine.go

@@ -0,0 +1,60 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/lua"
+)
+
+func coroutineFunc(L *lua.State) {
+	L.LoadString(c.Str(`
+	function coro_func()
+	   for i = 1, 5 do
+	       coroutine.yield(i)
+	   end
+	end
+	`))
+	L.PCall(0, 0, 0)
+	L.GetGlobal(c.Str("coro_func"))
+}
+
+func main() {
+	L := lua.NewState()
+	defer L.Close()
+
+	L.OpenLibs()
+
+	coroutineFunc(L) // Load and get the coroutine function
+
+	co := L.NewThread() // Create a new coroutine/thread
+	L.PushValue(-2)     // Move the function to the top of the stack
+	L.XMove(co, 1)      // Move the function to the new coroutine
+
+	var nres c.Int
+	var status c.Int
+
+	c.Printf(c.Str("Resuming coroutine...\n"))
+	// Resume coroutine and handle yields
+	for {
+		status = co.Resume(nil, 0, &nres)
+		c.Printf(c.Str("Resuming coroutine %d...\n"), status)
+		if status == lua.YIELD {
+			yieldValue := co.ToInteger(-1)
+			c.Printf(c.Str("Yield value: %d\n"), yieldValue)
+			co.Pop(1) // Clean up the stack
+
+			// Check if the coroutine is yieldable
+			if co.IsYieldable() != 0 {
+				c.Printf(c.Str("Coroutine is yieldable.\n"))
+			} else {
+				c.Printf(c.Str("Coroutine is not yieldable.\n"))
+			}
+
+		} else {
+			break
+		}
+	}
+
+	// Check the final status of the coroutine
+	finalStatus := co.Status()
+	c.Printf(c.Str("Final status of coroutine: %d\n"), finalStatus)
+}

c/lua/_demo/error/error.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	_ "unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/lua"
+)
+
+func main() {
+	L := lua.NewState()
+	defer L.Close()
+	L.OpenLibs()
+	if res := L.LoadString(c.Str("function doubleNumber(x) ! return x * 2 end")); res != lua.OK {
+		c.Printf(c.Str("error: %s\n"), L.ToString(-1))
+	}
+}
+
+/* Expected output:
+error: [string "function doubleNumber(x) ! return x * 2 end"]:1: unexpected symbol near '!'
+*/

c/lua/_demo/funccall-concat/funccall.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	_ "unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/lua"
+)
+
+func main() {
+	L := lua.NewState()
+	defer L.Close()
+
+	L.OpenLibs()
+	if res := L.DoString(c.Str("function combineParams(num, str) return 'Result: ' .. str .. '  ' .. num end")); res != lua.OK {
+		c.Printf(c.Str("error: %s\n"), L.ToString(-1))
+	}
+	L.GetGlobal(c.Str("combineParams"))
+	L.PushNumber(3.14159)
+	L.PushString(c.Str("Hello, World!"))
+	if res := L.PCall(2, 1, 0); res != lua.OK {
+		c.Printf(c.Str("error: %s\n"), L.ToString(-1))
+	}
+	if res := L.IsString(-1); res != 0 {
+		result := L.ToString(-1)
+		c.Printf(result)
+	}
+}
+
+/* Expected output:
+Result: Hello, World!  3.14159
+*/

c/lua/_demo/funccall-number/funccall.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	_ "unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/lua"
+)
+
+func main() {
+	L := lua.NewState()
+	defer L.Close()
+
+	L.OpenLibs()
+	if res := L.LoadString(c.Str("function doubleNumber(x) return x * 2 end")); res != lua.OK {
+		c.Printf(c.Str("error: %s\n"), L.ToString(-1))
+	}
+	if res := L.PCall(0, 0, 0); res != lua.OK {
+		c.Printf(c.Str("error: %s\n"), L.ToString(-1))
+	}
+
+	L.GetGlobal(c.Str("doubleNumber"))
+	L.PushNumber(10)
+
+	if res := L.PCall(1, 1, 0); res != lua.OK {
+		c.Printf(c.Str("error: %s\n"), L.ToString(-1))
+	}
+
+	if res := L.IsNumber(-1); res != 0 {
+		result := L.ToInteger(-1)
+		c.Printf(c.Str("result: %lld\n"), result)
+	} else {
+		c.Printf(c.Str("error: %s\n"), L.ToString(-1))
+	}
+}
+
+/* Expected output:
+result: 20
+*/

c/lua/_demo/funccall-string/funccall.go

@@ -0,0 +1,48 @@
+package main
+
+import (
+	_ "unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/lua"
+)
+
+func main() {
+	L := lua.NewState()
+	defer L.Close()
+
+	L.OpenLibs()
+	code := c.Str(
+		`function processStrings(a, b, c)
+	print('Received string a: ' .. a)
+	print('Received string b: ', b)
+	print('Received string c (formatted): ' .. c)
+	return a .. b .. c
+end`)
+
+	if res := L.DoString(code); res != lua.OK {
+		c.Printf(c.Str("error: %s\n"), L.ToString(-1))
+	}
+
+	L.GetGlobal(c.Str("processStrings"))
+
+	L.PushString(c.Str("Hello, World!"))
+	L.PushLString(c.Str(`Hello Lua In LLGO`), 17)
+	L.PushFString(c.Str(`Hello %s In %d`), c.Str("LLGO"), 2024)
+
+	if res := L.PCall(3, 1, 0); res != lua.OK {
+		c.Printf(c.Str("error: %s\n"), L.ToString(-1))
+	}
+
+	if res := L.IsString(-1); res != 0 {
+		result := L.ToString(-1)
+		c.Printf(c.Str("result: %s\n"), result)
+	}
+}
+
+/* Expected output:
+Received string a: Hello, World!
+Received string b:      Hello Lua In LLGO
+Received string c (formatted): Hello LLGO In 2024
+result: Hello, World!Hello Lua In LLGOHello LLGO In 2024
+*/

c/lua/_demo/hello/hello.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	_ "unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/lua"
+)
+
+func main() {
+	L := lua.NewState()
+	defer L.Close()
+	L.OpenLibs()
+	if res := L.DoString(c.Str("print('hello world')")); res != lua.OK {
+		println("error")
+	}
+}

c/lua/_demo/loadcall/loadcall.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	_ "unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/lua"
+)
+
+func main() {
+	L := lua.NewState()
+	defer L.Close()
+
+	L.OpenLibs()
+	if res := L.LoadString(c.Str("print('hello world')")); res != lua.OK {
+		println("error")
+	}
+	if res := L.PCall(0, 0, 0); res != lua.OK {
+		println("error")
+	}
+
+}

c/lua/_demo/stack/stack.go

@@ -0,0 +1,79 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/lua"
+)
+
+// printStack prints the current stack of the given Lua state.
+func printStack(L *lua.State, stateName *c.Char) {
+	top := L.GetTop()
+	c.Printf(c.Str("%s stack (top=%d):"), stateName, top)
+	for i := 1; i <= int(top); i++ {
+		c.Printf(c.Str("%s "), L.ToString(c.Int(i)))
+	}
+	c.Printf(c.Str("\n"))
+}
+
+func main() {
+	// Create a new Lua state and open libraries
+	L := lua.NewState()
+	defer L.Close()
+	L.OpenLibs()
+
+	// Push initial values onto the stack
+	L.PushString(c.Str("Hello"))
+	L.PushString(c.Str("LLGO"))
+	L.PushNumber(2024)
+
+	// Print initial stack
+	c.Printf(c.Str("Initial stack:\n"))
+	printStack(L, c.Str("L1"))
+
+	// Use absindex to ensure the index is positive
+	idx := -2
+	absIdx := L.AbsIndex(c.Int(idx))
+	c.Printf(c.Str("Absolute index of 'LLGO': %d\n"), absIdx)
+
+	// Copy 'LLGO' to the top of the stack
+	L.PushValue(absIdx)
+	c.Printf(c.Str("\nAfter pushing 'LLGO' to the top:\n"))
+	printStack(L, c.Str("L1"))
+
+	// Rotate stack elements
+	L.Rotate(c.Int(1), c.Int(-1))
+	c.Printf(c.Str("\nAfter rotating the stack:\n"))
+	printStack(L, c.Str("L1"))
+
+	// Copy the top element to index 2
+	L.Copy(c.Int(-1), c.Int(2))
+	c.Printf(c.Str("\nAfter copying the top element to index 2:\n"))
+	printStack(L, c.Str("L1"))
+
+	// Check if we can grow the stack
+	if L.CheckStack(c.Int(2)) == 0 {
+		c.Printf(c.Str("Cannot grow stack\n"))
+		return
+	}
+
+	// Push additional elements
+	L.PushNumber(3.14)
+	L.PushString(c.Str("Lua"))
+	c.Printf(c.Str("\nAfter pushing more elements:\n"))
+	printStack(L, c.Str("L1"))
+
+	// Set the top of the stack, clearing extra elements
+	L.SetTop(c.Int(5))
+	c.Printf(c.Str("\nAfter setting top to 5:\n"))
+	printStack(L, c.Str("L1"))
+
+	// Create a second Lua state
+	L1 := lua.NewState()
+	defer L1.Close()
+
+	// Move two elements to the new state
+	L.XMove(L1, c.Int(2))
+	c.Printf(c.Str("\nAfter moving two elements to L1:\n"))
+	printStack(L, c.Str("L1"))
+	printStack(L1, c.Str("L2"))
+}

c/lua/_demo/table/table.go

@@ -0,0 +1,51 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/lua"
+)
+
+func printTable(L *lua.State) {
+	L.PushNil()
+	for L.Next(-2) != 0 {
+		key := L.ToString(-2)
+		value := L.ToString(-1)
+		c.Printf(c.Str("%s - %s\n"), key, value)
+		L.Pop(1)
+	}
+	L.Pop(1)
+}
+
+func main() {
+	L := lua.NewState()
+	defer L.Close()
+
+	L.OpenLibs()
+
+	L.NewTable()
+
+	L.PushString(c.Str("name"))
+	L.PushString(c.Str("John"))
+	L.SetTable(-3)
+
+	L.PushString(c.Str("age"))
+	L.PushNumber(30)
+	L.SetTable(-3)
+
+	L.PushString(c.Str("John Doe"))
+	L.SetField(-2, c.Str("fullname"))
+
+	L.GetField(-1, c.Str("name"))
+	c.Printf(c.Str("%s\n"), L.ToString(-1))
+	L.Pop(1)
+
+	L.PushString(c.Str("age"))
+	L.GetTable(-2)
+	age := int(L.ToNumber(-1))
+	c.Printf(c.Str("Age: %d\n"), age)
+	L.Pop(1)
+
+	c.Printf(c.Str("All entries in the table:\n"))
+	printTable(L)
+
+}

c/lua/lauxlib.go

@@ -0,0 +1,101 @@
+package lua
+
+import (
+	_ "unsafe"
+
+	"github.com/goplus/llgo/c"
+)
+
+// /* global table */
+
+// /* extra error code for 'luaL_loadfilex' */
+
+// /* key, in the registry, for table of loaded modules */
+
+// /* key, in the registry, for table of preloaded loaders */
+
+// /* predefined references */
+
+// llgo:link (*State).LoadFilex C.luaL_loadfilex
+func (L *State) LoadFilex(filename *c.Char, mode *c.Char) c.Int { return 0 }
+
+func (L *State) LoadFile(filename *c.Char) c.Int { return L.LoadFilex(filename, nil) }
+
+// llgo:link (*State).LoadString C.luaL_loadstring
+func (L *State) LoadString(s *c.Char) c.Int { return 0 }
+
+//go:linkname NewState C.luaL_newstate
+func NewState() *State
+
+// /*
+// ** ===============================================================
+// ** some useful macros
+// ** ===============================================================
+// */
+
+func (L *State) DoFile(filename *c.Char) c.Int {
+	if loadResult := L.LoadFile(filename); loadResult != 0 {
+		return loadResult
+	}
+	return L.PCall(c.Int(0), c.Int(MULTRET), c.Int(0))
+}
+
+func (L *State) DoString(str *c.Char) c.Int {
+	if loadResult := L.LoadString(str); loadResult != 0 {
+		return loadResult
+	}
+	return L.PCall(c.Int(0), c.Int(MULTRET), c.Int(0))
+}
+
+// /*
+// ** Perform arithmetic operations on lua_Integer values with wrap-around
+// ** semantics, as the Lua core does.
+// */
+
+// /* push the value used to represent failure/error */
+
+// /*
+// ** {======================================================
+// ** Generic Buffer manipulation
+// ** =======================================================
+// */
+
+// /* }====================================================== */
+
+// /*
+// ** {======================================================
+// ** File handles for IO library
+// ** =======================================================
+// */
+
+// /*
+// ** A file handle is a userdata with metatable 'LUA_FILEHANDLE' and
+// ** initial structure 'luaL_Stream' (it may contain other fields
+// ** after that initial structure).
+// */
+
+// #define LUA_FILEHANDLE          "FILE*"
+
+// /* }====================================================== */
+
+// /*
+// ** {==================================================================
+// ** "Abstraction Layer" for basic report of messages and errors
+// ** ===================================================================
+// */
+
+// /* print a string */
+
+// /* print a newline and flush the output */
+
+// /* print an error message */
+
+// /* }================================================================== */
+
+// /*
+// ** {============================================================
+// ** Compatibility with deprecated conversions
+// ** =============================================================
+// */
+
+// /* }============================================================ */

c/lua/lua.go

@@ -0,0 +1,495 @@
+package lua
+
+import (
+	_ "unsafe"
+
+	"github.com/goplus/llgo/c"
+)
+
+const (
+	LLGoPackage = "link: $(pkg-config --libs lua); -llua -lm"
+)
+
+// /* mark for precompiled code ('<esc>Lua') */
+
+// /* option for multiple returns in 'lua_pcall' and 'lua_call' */
+const (
+	MULTRET = -1
+)
+
+// /*
+// ** Pseudo-indices
+// ** (-LUAI_MAXSTACK is the minimum valid index; we keep some free empty
+// ** space after that to help overflow detection)
+// */
+
+// /* thread status */
+const (
+	OK        = 0
+	YIELD     = 1
+	ERRRUN    = 2
+	ERRSYNTAX = 3
+	ERRMEM    = 4
+	ERRERR    = 5
+)
+
+type State struct {
+	Unused [8]byte
+}
+
+// /*
+// ** basic types
+// */
+const (
+	NONE          = int(-1)
+	NIL           = int(0)
+	BOOLEAN       = int(1)
+	LIGHTUSERDATA = int(2)
+	NUMBER        = int(3)
+	STRING        = int(4)
+	TABLE         = int(5)
+	FUNCTION      = int(6)
+	USERDATA      = int(7)
+	THREAD        = int(8)
+	UMTYPES       = int(9)
+)
+
+// /* minimum Lua stack available to a C function */
+const (
+	MINSTACK = 20
+)
+
+// /* predefined values in the registry */
+const (
+	RIDX_MAINTHREAD = 1
+	RIDX_GLOBALS    = 2
+	RIDX_LAST       = RIDX_GLOBALS
+)
+
+// /* type of numbers in Lua */
+type Number = c.Double
+
+// /* type for integer functions */
+// TODO(zzy):consider dynamic size
+
+type Integer = c.Int
+
+// /* unsigned integer type */
+type Unsigned = c.Uint
+
+// /* type for continuation-function contexts */
+// TODO(zzy): Context may not be c.Int
+type KContext c.Int
+
+// /*
+// ** Type for C functions registered with Lua
+// */
+
+// /*
+// ** Type for continuation functions
+// */
+
+// TODO(zzy): KFunction does not currently support
+type KFunction func(L *State, status c.Int, ctx KContext) c.Int
+
+// /*
+// ** Type for functions that read/write blocks when loading/dumping Lua chunks
+// */
+
+// typedef const char * (*lua_Reader) (State *L, void *ud, size_t *sz);
+// typedef int (*lua_Writer) (State *L, const void *p, size_t sz, void *ud);
+
+// /*
+// ** Type for memory-allocation functions
+// */
+
+// typedef void * (*lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize);
+
+// /*
+// ** Type for warning functions
+// */
+
+// typedef void (*lua_WarnFunction) (void *ud, const char *msg, int tocont);
+
+// /*
+// ** Type used by the debug API to collect debug information
+// */
+
+// typedef struct lua_Debug lua_Debug;
+
+// /*
+// ** Functions to be called by the debugger in specific events
+// */
+
+// typedef void (*lua_Hook) (State *L, lua_Debug *ar);
+
+// /*
+// ** generic extra include file
+// */
+
+// #if defined(LUA_USER_H)
+// #include LUA_USER_H
+// #endif
+
+// /*
+// ** RCS ident string
+// */
+
+// extern const char lua_ident[];
+
+// /*
+// ** state manipulation
+// */
+// llgo:link (*State).Close C.lua_close
+func (L *State) Close() {}
+
+// State *(lua_newstate) (lua_Alloc f, void *ud);
+// State *(lua_newthread) (State *L);
+
+// llgo:link (*State).NewThread C.lua_newthread
+func (L *State) NewThread() *State { return nil }
+
+// int        (lua_closethread) (State *L, State *from);
+// int        (lua_resetthread) (State *L);  /* Deprecated! */
+// lua_CFunction (lua_atpanic) (State *L, lua_CFunction panicf);
+// lua_Number (lua_version) (State *L);
+
+// /*
+// ** basic stack manipulation
+// */
+
+// llgo:link (*State).AbsIndex C.lua_absindex
+func (L *State) AbsIndex(idx c.Int) c.Int { return 0 }
+
+// llgo:link (*State).GetTop C.lua_gettop
+func (L *State) GetTop() c.Int { return 0 }
+
+// llgo:link (*State).SetTop C.lua_settop
+func (L *State) SetTop(idx c.Int) {}
+
+// llgo:link (*State).PushValue C.lua_pushvalue
+func (L *State) PushValue(idx c.Int) {}
+
+// llgo:link (*State).Rotate C.lua_rotate
+func (L *State) Rotate(idx c.Int, n c.Int) {}
+
+// llgo:link (*State).Copy C.lua_copy
+func (L *State) Copy(fromidx c.Int, toidx c.Int) {}
+
+// llgo:link (*State).CheckStack C.lua_checkstack
+func (L *State) CheckStack(n c.Int) c.Int { return 0 }
+
+// llgo:link (*State).XMove C.lua_xmove
+func (L *State) XMove(to *State, n c.Int) {}
+
+// /*
+// ** access functions (stack -> C)
+// */
+// LUA_API int             (lua_isinteger) (State *L, int idx);
+// llgo:link (*State).IsInteger C.lua_isinteger
+func (L *State) IsInteger(idx c.Int) c.Int { return 0 }
+
+// llgo:link (*State).IsNumber C.lua_isnumber
+func (L *State) IsNumber(idx c.Int) c.Int { return 0 }
+
+// llgo:link (*State).IsString C.lua_isstring
+func (L *State) IsString(idx c.Int) c.Int { return 0 }
+
+// TODO(zzy):add to demo
+// llgo:link (*State).Type C.lua_type
+func (L *State) Type(idx c.Int) c.Int { return 0 }
+
+// TODO(zzy)
+// llgo:link (*State).TypeName C.lua_typename
+func (L *State) TypeName(tp c.Int) *c.Char { return nil }
+
+// llgo:link (*State).ToNumberx C.lua_tonumberx
+func (L *State) ToNumberx(idx c.Int, isnum *c.Int) Number { return 0 }
+
+// llgo:link (*State).ToIntegerx C.lua_tointegerx
+func (L *State) ToIntegerx(idx c.Int, isnum *c.Int) Integer { return 0 }
+
+// llgo:link (*State).ToBoolean C.lua_toboolean
+func (L *State) ToBoolean(idx c.Int) bool { return false }
+
+// llgo:link (*State).ToLString C.lua_tolstring
+func (L *State) ToLString(idx c.Int, len *c.Ulong) *c.Char { return nil }
+
+// LUA_API int             (lua_iscfunction) (State *L, int idx);
+// LUA_API int             (lua_isuserdata) (State *L, int idx);
+
+// LUA_API lua_Unsigned    (lua_rawlen) (State *L, int idx);
+// LUA_API lua_CFunction   (lua_tocfunction) (State *L, int idx);
+// LUA_API void	       *(lua_touserdata) (State *L, int idx);
+// LUA_API State      *(lua_tothread) (State *L, int idx);
+// LUA_API const void     *(lua_topointer) (State *L, int idx);
+
+// /*
+// ** Comparison and arithmetic functions
+// */
+
+// /*
+// ** push functions (C -> stack)
+// */
+// llgo:link (*State).PushNil C.lua_pushnil
+func (L *State) PushNil() {}
+
+// llgo:link (*State).PushNumber C.lua_pushnumber
+func (L *State) PushNumber(n Number) {}
+
+// llgo:link (*State).PushInteger C.lua_pushinteger
+func (L *State) PushInteger(n Integer) {}
+
+// llgo:link (*State).PushString C.lua_pushstring
+func (L *State) PushString(s *c.Char) *c.Char {
+	return nil
+}
+
+// llgo:link (*State).PushLString C.lua_pushlstring
+func (L *State) PushLString(s *c.Char, len c.Ulong) *c.Char {
+	return nil
+}
+
+// llgo:link (*State).PushFString C.lua_pushfstring
+func (L *State) PushFString(format *c.Char, __llgo_va_list ...any) *c.Char { return nil }
+
+// llgo:link (*State).PushBoolean C.lua_pushboolean
+func (L *State) PushBoolean(b c.Int) {}
+
+//const char *(lua_pushvfstring) (State *L, const char *fmt,va_list argp);
+//void  (lua_pushcclosure) (State *L, lua_CFunction fn, int n);
+//void  (lua_pushlightuserdata) (State *L, void *p);
+//int   (lua_pushthread) (State *L);
+
+// /*
+// ** get functions (Lua -> stack)
+// */
+
+// llgo:link (*State).GetGlobal C.lua_getglobal
+func (L *State) GetGlobal(name *c.Char) c.Int { return 0 }
+
+// llgo:link (*State).GetTable C.lua_gettable
+func (L *State) GetTable(idx c.Int) c.Int { return 0 }
+
+// llgo:link (*State).GetField C.lua_getfield
+func (L *State) GetField(idx c.Int, k *c.Char) c.Int { return 0 }
+
+// llgo:link (*State).CreateTable C.lua_createtable
+func (L *State) CreateTable(narr c.Int, nrec c.Int) {}
+
+// LUA_API int (lua_geti) (State *L, int idx, lua_Integer n);
+// LUA_API int (lua_rawget) (State *L, int idx);
+// LUA_API int (lua_rawgeti) (State *L, int idx, lua_Integer n);
+// LUA_API int (lua_rawgetp) (State *L, int idx, const void *p);
+
+// LUA_API void *(lua_newuserdatauv) (State *L, size_t sz, int nuvalue);
+// LUA_API int   (lua_getmetatable) (State *L, int objindex);
+// LUA_API int  (lua_getiuservalue) (State *L, int idx, int n);
+
+// /*
+// ** set functions (stack -> Lua)
+// */
+
+// TODO(zzy):add to demo
+// llgo:link (*State).SetGlobal C.lua_setglobal
+func (L *State) SetGlobal(name *c.Char) {}
+
+// llgo:link (*State).SetTable C.lua_settable
+func (L *State) SetTable(idx c.Int) {}
+
+// llgo:link (*State).SetField C.lua_setfield
+func (L *State) SetField(idx c.Int, k *c.Char) {}
+
+//void  (lua_seti) (State *L, int idx, lua_Integer n);
+//void  (lua_rawset) (State *L, int idx);
+//void  (lua_rawseti) (State *L, int idx, lua_Integer n);
+//void  (lua_rawsetp) (State *L, int idx, const void *p);
+//int   (lua_setmetatable) (State *L, int objindex);
+//int   (lua_setiuservalue) (State *L, int idx, int n);
+
+// /*
+// ** 'load' and 'call' functions (load and run Lua code)
+// */
+
+// llgo:link (*State).PCallk C.lua_pcallk
+func (L *State) PCallk(nargs c.Int, nresults c.Int, errfunc c.Int, ctx KContext, k *KFunction) c.Int {
+	return 0
+}
+
+func (L *State) PCall(nargs c.Int, nresults c.Int, errfunc c.Int) c.Int {
+	return L.PCallk(nargs, nresults, errfunc, KContext(c.Int(0)), nil)
+}
+
+// void  (lua_callk) (State *L, int nargs, int nresults, lua_KContext ctx, lua_KFunction k);
+// #define lua_call(L,n,r)		lua_callk(L, (n), (r), 0, NULL)
+
+// int   (lua_load) (State *L, lua_Reader reader, void *dt, const char *chunkname, const char *mode);
+
+// int (lua_dump) (State *L, lua_Writer writer, void *data, int strip);
+
+// /*
+// ** coroutine functions
+// */
+
+// llgo:link (*State).Resume C.lua_resume
+func (L *State) Resume(from *State, narg c.Int, nres *c.Int) c.Int { return 0 }
+
+// llgo:link (*State).Status C.lua_status
+func (L *State) Status() c.Int { return 0 }
+
+// llgo:link (*State).IsYieldable C.lua_isyieldable
+func (L *State) IsYieldable() c.Int { return 0 }
+
+// TODO(zzy)
+// int  (lua_yieldk)     (State *L, int nresults, lua_KContext ctx, lua_KFunction k);
+// #define lua_yield(L,n)	lua_yieldk(L, (n), 0, NULL)
+
+// /*
+// ** Warning-related functions
+// */
+
+//void (lua_setwarnf) (State *L, lua_WarnFunction f, void *ud);
+//void (lua_warning)  (State *L, const char *msg, int tocont);
+
+// /*
+// ** garbage-collection function and options
+// */
+
+const (
+	GCSTOP       = 0
+	GCRESTART    = 1
+	GCCOLLECT    = 2
+	GCCOUNT      = 3
+	GCCOUNTB     = 4
+	GCSTEP       = 5
+	GCSETPAUSE   = 6
+	GCSETSTEPMUL = 7
+	GCISRUNNING  = 9
+	GCGEN        = 10
+	GCINC        = 11
+)
+
+// LUA_API int (lua_gc) (State *L, int what, ...);
+
+// /*
+// ** miscellaneous functions
+// */
+// llgo:link (*State).Next C.lua_next
+func (L *State) Next(idx c.Int) c.Int { return 0 }
+
+// LUA_API int   (lua_error) (State *L);
+
+// LUA_API void  (lua_concat) (State *L, int n);
+// LUA_API void  (lua_len)    (State *L, int idx);
+
+// LUA_API size_t   (lua_stringtonumber) (State *L, const char *s);
+
+// LUA_API lua_Alloc (lua_getallocf) (State *L, void **ud);
+// LUA_API void      (lua_setallocf) (State *L, lua_Alloc f, void *ud);
+
+// LUA_API void (lua_toclose) (State *L, int idx);
+// LUA_API void (lua_closeslot) (State *L, int idx);
+
+// /*
+// ** {==============================================================
+// ** some useful macros
+// ** ===============================================================
+// */
+
+func (L *State) ToNumber(idx c.Int) Number    { return L.ToNumberx(idx, nil) }
+func (L *State) ToString(idx c.Int) *c.Char   { return L.ToLString(idx, nil) }
+func (L *State) ToInteger(idx c.Int) Integer  { return L.ToIntegerx(idx, nil) }
+func (L *State) Pop(n c.Int)                  { L.SetTop(-(n) - 1) }
+func (L *State) NewTable()                    { L.CreateTable(0, 0) }
+func (L *State) IsFunction(n c.Int) bool      { return L.Type(n) == c.Int(FUNCTION) }
+func (L *State) IsTable(n c.Int) bool         { return L.Type(n) == c.Int(TABLE) }
+func (L *State) IsLightUserData(n c.Int) bool { return L.Type(n) == c.Int(LIGHTUSERDATA) }
+func (L *State) IsNil(n c.Int) bool           { return L.Type(n) == c.Int(NIL) }
+func (L *State) IsBoolean(n c.Int) bool       { return L.Type(n) == c.Int(BOOLEAN) }
+func (L *State) IsThread(n c.Int) bool        { return L.Type(n) == c.Int(THREAD) }
+func (L *State) IsNone(n c.Int) bool          { return L.Type(n) == c.Int(NONE) }
+func (L *State) IsNoneOrNil(n c.Int) bool     { return L.Type(n) <= 0 }
+
+// #define lua_getextraspace(L)	((void *)((char *)(L) - LUA_EXTRASPACE))
+
+// #define lua_register(L,n,f) (lua_pushcfunction(L, (f)), lua_setglobal(L, (n)))
+
+// #define lua_pushcfunction(L,f)	lua_pushcclosure(L, (f), 0)
+
+// #define lua_pushliteral(L, s)	lua_pushstring(L, "" s)
+
+// #define lua_pushglobaltable(L)  ((void)lua_rawgeti(L, LUA_REGISTRYINDEX, LUA_RIDX_GLOBALS))
+
+// #define lua_insert(L,idx)	lua_rotate(L, (idx), 1)
+
+// #define lua_remove(L,idx)	(lua_rotate(L, (idx), -1), lua_pop(L, 1))
+
+// #define lua_replace(L,idx)	(lua_copy(L, -1, (idx)), lua_pop(L, 1))
+
+// /* }============================================================== */
+
+// /*
+// ** {==============================================================
+// ** compatibility macros
+// ** ===============================================================
+// */
+
+// #define lua_newuserdata(L,s)	lua_newuserdatauv(L,s,1)
+// #define lua_getuservalue(L,idx)	lua_getiuservalue(L,idx,1)
+// #define lua_setuservalue(L,idx)	lua_setiuservalue(L,idx,1)
+
+// #define LUA_NUMTAGS		LUA_NUMTYPES
+
+// /* }============================================================== */
+
+// /*
+// ** {======================================================================
+// ** Debug API
+// ** =======================================================================
+// */
+// /*
+// ** Event codes
+// */
+
+const (
+	HOOKCALL     = 0
+	HOOKRET      = 1
+	HOOKLINE     = 2
+	HOOKCOUNT    = 3
+	HOOKTAILCALL = 4
+)
+
+// /*
+// ** Event masks
+// */
+// #define LUA_MASKCALL	(1 << LUA_HOOKCALL)
+// #define LUA_MASKRET	(1 << LUA_HOOKRET)
+// #define LUA_MASKLINE	(1 << LUA_HOOKLINE)
+// #define LUA_MASKCOUNT	(1 << LUA_HOOKCOUNT)
+
+const (
+	MASKCALL  = 1 << HOOKCOUNT
+	MASKRET   = 1 << HOOKRET
+	MASKLINE  = 1 << HOOKLINE
+	MASKCOUNT = 1 << HOOKCOUNT
+)
+
+// LUA_API int (lua_getstack) (State *L, int level, lua_Debug *ar);
+// LUA_API int (lua_getinfo) (State *L, const char *what, lua_Debug *ar);
+// LUA_API const char *(lua_getlocal) (State *L, const lua_Debug *ar, int n);
+// LUA_API const char *(lua_setlocal) (State *L, const lua_Debug *ar, int n);
+// LUA_API const char *(lua_getupvalue) (State *L, int funcindex, int n);
+// LUA_API const char *(lua_setupvalue) (State *L, int funcindex, int n);
+
+// LUA_API void *(lua_upvalueid) (State *L, int fidx, int n);
+// LUA_API void  (lua_upvaluejoin) (State *L, int fidx1, int n1, int fidx2, int n2);
+
+// LUA_API void (lua_sethook) (State *L, lua_Hook func, int mask, int count);
+// LUA_API lua_Hook (lua_gethook) (State *L);
+// LUA_API int (lua_gethookmask) (State *L);
+// LUA_API int (lua_gethookcount) (State *L);
+
+// LUA_API int (lua_setcstacklimit) (State *L, unsigned int limit);
+
+// struct lua_Debug
+// /* }====================================================================== */

c/lua/lualib.go

@@ -0,0 +1,8 @@
+package lua
+
+import (
+	_ "unsafe"
+)
+
+// llgo:link (*State).OpenLibs C.luaL_openlibs
+func (L *State) OpenLibs() {}