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Cleaned up, added utility API.

This commit is contained in:
Adam Harrison 2021-09-16 16:08:21 -04:00
parent 2987554097
commit 03b467d9d9
2 changed files with 38 additions and 30 deletions
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6
resources/lite_xl_plugin_api.h
View File

@ -20,7 +20,8 @@ LUA_HEADERS=`pkg-config --cflags lua5.2 | sed 's/^-I//' | sed 's/$/\/*.h/'`
grep -h "^LUA\(LIB\)*_API" $LUA_HEADERS | sed "s/LUA\(LIB\)*_API //" | sed "s/(lua/(*lua/" | grep -v ",\s*$" | sed "s/^/static /"
grep -h "#define luaL*_" $LUA_HEADERS | grep -v "\\\s*$" | grep -v "\(assert\|lock\)" | grep -v "\(asm\|int32\)" | grep -v "#define lua_number2integer(i,n)\s*lua_number2int(i, n)"
echo "#define IMPORT_SYMBOL(name, ret, ...) name = (ret (*)(__VA_ARGS__))symbol(#name)"
echo "static void lite_init_plugin(void* (*symbol(const char*))) {"
echo "static void lite_xl_plugin_init(void* XL) {"
echo "\tvoid* (*symbol)(const char*) = (void* (*)(const char*))XL;"
grep -h "^LUA\(LIB\)*_API" $LUA_HEADERS | sed "s/LUA\(LIB\)*_API //" | sed "s/(lua/(*lua/" | grep -v ",\s*$" | sed "s/^\([^)]*\)(\*\(lua\w*\))\s*(/\tIMPORT_SYMBOL(\2, \1,/"
echo "}"
echo "#endif"
@ -197,7 +198,8 @@ static void (*luaL_openlibs) (lua_State *L);
#define lua_str2number(s,p) strtod((s), (p))
#define lua_strx2number(s,p) strtod((s), (p))
#define IMPORT_SYMBOL(name, ret, ...) name = (ret (*)(__VA_ARGS__))symbol(#name)
static void lite_init_plugin(void* (*symbol(const char*))) {
static void lite_xl_plugin_init(void* XL) {
void* (*symbol)(const char*) = (void* (*)(const char*))XL;
IMPORT_SYMBOL(luaL_checkversion_, void ,lua_State *L, lua_Number ver);
IMPORT_SYMBOL(luaL_getmetafield, int ,lua_State *L, int obj, const char *e);
IMPORT_SYMBOL(luaL_callmeta, int ,lua_State *L, int obj, const char *e);

62
src/api/system.c
View File

@ -645,6 +645,7 @@ typedef struct {
} lua_function_node;
#define P(FUNC) { "lua_" #FUNC, (void*)(lua_##FUNC) }
#define U(FUNC) { "luaL_" #FUNC, (void*)(luaL_##FUNC) }
static void* api_require(const char* symbol) {
static lua_function_node nodes[] = {
P(absindex), P(arith), P(atpanic), P(callk), P(checkstack),
@ -652,21 +653,26 @@ static void* api_require(const char* symbol) {
P(error), P(gc), P(getallocf), P(getctx), P(getfield), P(getglobal),
P(gethook), P(gethookcount), P(gethookmask), P(getinfo), P(getlocal),
P(getmetatable), P(getstack), P(gettable), P(gettop), P(getupvalue),
P(getuservalue), P(insert), P(isnumber),
P(isstring), P(isuserdata), P(len), P(load),
P(newstate), P(newthread), P(newuserdata), P(next),
P(pcallk), P(pushboolean), P(pushcclosure),
P(pushfstring), P(pushinteger), P(pushlightuserdata),
P(pushlstring), P(pushnil), P(pushnumber), P(pushstring),
P(pushthread), P(pushunsigned), P(pushvalue), P(pushvfstring), P(rawequal),
P(rawget), P(rawgeti), P(rawgetp), P(rawlen), P(rawset), P(rawseti),
P(rawsetp), P(remove), P(replace), P(resume), P(setallocf),
P(setfield), P(setglobal), P(sethook), P(setlocal), P(setmetatable),
P(settable), P(settop), P(setupvalue), P(setuservalue), P(status),
P(tocfunction), P(tointegerx), P(tolstring), P(toboolean),
P(tonumberx), P(topointer), P(tothread),
P(tounsignedx), P(touserdata), P(type), P(typename), P(upvalueid),
P(upvaluejoin), P(version), P(xmove), P(yieldk)
P(getuservalue), P(insert), P(isnumber), P(isstring), P(isuserdata),
P(len), P(load), P(newstate), P(newthread), P(newuserdata), P(next),
P(pcallk), P(pushboolean), P(pushcclosure), P(pushfstring), P(pushinteger),
P(pushlightuserdata), P(pushlstring), P(pushnil), P(pushnumber),
P(pushstring), P(pushthread), P(pushunsigned), P(pushvalue),
P(pushvfstring), P(rawequal), P(rawget), P(rawgeti), P(rawgetp), P(rawlen),
P(rawset), P(rawseti), P(rawsetp), P(remove), P(replace), P(resume),
P(setallocf), P(setfield), P(setglobal), P(sethook), P(setlocal),
P(setmetatable), P(settable), P(settop), P(setupvalue), P(setuservalue),
P(status), P(tocfunction), P(tointegerx), P(tolstring), P(toboolean),
P(tonumberx), P(topointer), P(tothread), P(tounsignedx), P(touserdata),
P(type), P(typename), P(upvalueid), P(upvaluejoin), P(version), P(xmove),
P(yieldk), U(checkversion_), U(getmetafield), U(callmeta), U(tolstring),
U(argerror), U(checknumber), U(optnumber), U(checkinteger),
U(checkunsigned), U(checkstack), U(checktype), U(checkany),
U(newmetatable), U(setmetatable), U(testudata), U(checkudata), U(where),
U(error), U(fileresult), U(execresult), U(ref), U(unref), U(loadstring),
U(newstate), U(len), U(setfuncs), U(getsubtable), U(buffinit),
U(prepbuffsize), U(addlstring), U(addstring), U(addvalue), U(pushresult),
U(pushresultsize), U(buffinitsize)
};
for (int i = 0; i < sizeof(nodes) / sizeof(lua_function_node); ++i) {
if (strcmp(nodes[i].symbol, symbol) == 0)
@ -676,26 +682,26 @@ static void* api_require(const char* symbol) {
}
static int f_load_native_plugin(lua_State* L) {
size_t sname, modlen, pathlen;
char buffer[512] = "lua_open_";
const char* modname = luaL_checklstring(L, -2, &modlen);
size_t sname, namelen, pathlen;
char olib[512];
const char* name = luaL_checklstring(L, -2, &namelen);
const char* path = luaL_checklstring(L, -1, &pathlen);
void* library = SDL_LoadObject(path);
if (modlen == 0 || !library)
return luaL_error(L, "Unable to load %s: %s", modname, SDL_GetError());
for (sname = modlen - 1; sname > 0 && modname[sname] != '.'; --sname);
strcat(buffer, &modname[sname+1]);
int (*entrypoint)(lua_State* L, void*) = SDL_LoadFunction(library, buffer);
if (name == 0 || !library)
return luaL_error(L, "Unable to load %s: %s", name, SDL_GetError());
for (sname = namelen - 1; sname > 0 && name[sname] != '.'; --sname);
snprintf(olib, sizeof(olib), "lua_open_%s", &name[sname+1]); olib[511] = 0;
int (*entrypoint)(lua_State* L, void*) = SDL_LoadFunction(library, olib);
if (!entrypoint) {
return luaL_error(L, "Unable to load %s: Can't find entrypoint. Requires a "
"function defined as int %s(lua_State* L, void* (*symbol)(const char*))",
modname, buffer);
"function defined as int %s(lua_State* L, void* XL)",
name, olib);
}
lua_pushlightuserdata(L, library);
lua_setfield(L, LUA_REGISTRYINDEX, modname);
lua_setfield(L, LUA_REGISTRYINDEX, name);
if (entrypoint(L, api_require) == 0)
return luaL_error(L, "Unable to load %s: Your entrypoint must return at\
least one argument.");
return luaL_error(L, "Unable to load %s: Your entrypoint must return at "
" least one value.", name);
return 1;
}