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Reworking the keyword parser, also fixed some dynamic linking issues

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This commit is contained in:
jyelon
2025-01-20 18:54:05 -05:00
parent a01f6f4e7b
commit 2d531b28b3
9 changed files with 243 additions and 118 deletions
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12
luprex/cpp/core/drivenengine.cpp
View File

@@ -927,12 +927,6 @@ static void replaycore_step(EngineWrapper *w) {
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
#if defined(__linux__)
#define DLLEXPORT __attribute__((visibility("default")))
#elif defined(_WIN32)
#define DLLEXPORT __declspec(dllexport)
#endif
static void init_engine_wrapper_helper(EngineWrapper *w) {
static bool called_initializer;
assert(DrivenEngineInitializerReg::func != nullptr);
@@ -973,6 +967,12 @@ static void init_engine_wrapper_helper(EngineWrapper *w) {
w->release = release;
};
#if defined(__linux__)
#define DLLEXPORT __attribute__((visibility("default")))
#elif defined(_WIN32)
#define DLLEXPORT __declspec(dllexport)
#endif
extern "C" {
DLLEXPORT void init_engine_wrapper(EngineWrapper *w) {
init_engine_wrapper_helper(w);

46
luprex/cpp/core/http.cpp
View File

@@ -744,51 +744,51 @@ void HttpClientRequest::set_defaults() {
void HttpClientRequest::configure(LuaKeywordParser &kp) {
LuaVar val;
LuaExtStack LS(kp.state(), val);
if (kp.parse(val, "method")) {
if (kp.optional(val, "method")) {
set_method(LS, val);
}
if (kp.parse(val, "host")) {
if (kp.optional(val, "host")) {
set_host(LS, val);
}
if (kp.parse(val, "port")) {
if (kp.optional(val, "port")) {
set_port(LS, val);
}
if (kp.parse(val, "path")) {
if (kp.optional(val, "path")) {
set_path(LS, val);
}
if (kp.parse(val, "params")) {
if (kp.optional(val, "params")) {
set_params(LS, val);
}
if (kp.parse(val, "url")) {
if (kp.optional(val, "url")) {
set_url(LS, val);
}
if (kp.parse(val, "verifycertificate")) {
if (kp.optional(val, "verifycertificate")) {
set_verify_certificate(LS, val);
}
if (kp.parse(val, "mimetype")) {
if (kp.optional(val, "mimetype")) {
set_mime_type(LS, val);
}
if (kp.parse(val, "content")) {
if (kp.optional(val, "content")) {
set_content(LS, val);
}
if (kp.parse(val, "html")) {
if (kp.optional(val, "html")) {
set_content(LS, val);
set_mime_type("text/html");
}
if (kp.parse(val, "text")) {
if (kp.optional(val, "text")) {
set_content(LS, val);
set_mime_type("text/plain");
}
if (kp.parse(val, "json")) {
if (kp.optional(val, "json")) {
set_content(LS, val);
set_mime_type("application/json");
}
if (kp.parse(val, "bytes")) {
if (kp.optional(val, "bytes")) {
set_content(LS, val);
set_mime_type("application/octet-stream");
}
if (kp.parse(val, "jsonvalue")) {
if (kp.optional(val, "jsonvalue")) {
set_jsonvalue(LS, val);
}
}
@@ -1044,35 +1044,35 @@ void HttpServerResponse::set_jsonvalue(LuaCoreStack &LS, LuaSlot val) {
void HttpServerResponse::configure(LuaKeywordParser &kp) {
LuaVar val;
LuaExtStack LS(kp.state(), val);
if (kp.parse(val, "status")) {
if (kp.optional(val, "status")) {
set_status(LS, val);
}
if (kp.parse(val, "maxage")) {
if (kp.optional(val, "maxage")) {
set_max_age(LS, val);
}
if (kp.parse(val, "mimetype")) {
if (kp.optional(val, "mimetype")) {
set_mime_type(LS, val);
}
if (kp.parse(val, "content")) {
if (kp.optional(val, "content")) {
set_content(LS, val);
}
if (kp.parse(val, "html")) {
if (kp.optional(val, "html")) {
set_content(LS, val);
set_mime_type("text/html");
}
if (kp.parse(val, "text")) {
if (kp.optional(val, "text")) {
set_content(LS, val);
set_mime_type("text/plain");
}
if (kp.parse(val, "json")) {
if (kp.optional(val, "json")) {
set_content(LS, val);
set_mime_type("application/json");
}
if (kp.parse(val, "bytes")) {
if (kp.optional(val, "bytes")) {
set_content(LS, val);
set_mime_type("application/octet-stream");
}
if (kp.parse(val, "jsonvalue")) {
if (kp.optional(val, "jsonvalue")) {
set_jsonvalue(LS, val);
}
}

106
luprex/cpp/core/luastack.cpp
View File

@@ -10,6 +10,9 @@
LuaSpecial LuaRegistry(LUA_REGISTRYINDEX);
LuaNilMarker LuaNil;
LuaNewTableMarker LuaNewTable;
static LuaToken token_error("error");
static LuaToken token_found("found");
LuaFunctionReg::LuaFunctionReg(const char *n, const char *a, const char *d, bool s, lua_CFunction f) {
name_ = n;
@@ -650,52 +653,101 @@ void LuaCoreStack::guard_nopredict(const char *fn) {
}
}
LuaKeywordParser::LuaKeywordParser(lua_State *L, int slot) {
L_ = L;
slot_ = slot;
not_table_ = !lua_istable(L_, slot_);
if (not_table_) {
lua_newtable(L_);
lua_replace(L_, slot_);
LuaKeywordParser::LuaKeywordParser(const LuaCoreStack &LS0, LuaSlot slot)
: keytab(slot.index()), LS(LS0.state(), found, error, key, val) {
istable = LS.istable(keytab);
if (istable) {
LS.rawget(found, keytab, token_found);
if (!LS.istable(found)) {
LS.set(found, LuaNewTable);
LS.rawset(keytab, token_found, found);
}
}
}
bool LuaKeywordParser::parse(LuaSlot out, const char *kw) {
lua_pushstring(L_, kw);
lua_rawget(L_, slot_);
lua_replace(L_, out.index());
if (!lua_isnil(L_, out.index())) {
parsed_.insert(kw);
bool LuaKeywordParser::optional(LuaSlot out, const char *kw) {
if (!istable) {
LS.set(out, LuaNil);
return false;
}
LS.rawget(out, keytab, kw);
if (!LS.isnil(out)) {
LS.rawset(found, kw, true);
return true;
} else {
return false;
}
};
eng::string LuaKeywordParser::final_check() {
if (not_table_) {
return "expected a keyword table";
bool LuaKeywordParser::required(LuaSlot out, const char *kw) {
if (!istable) {
LS.set(out, LuaNil);
return false;
}
lua_pushnil(L_);
while (lua_next(L_, slot_) != 0) {
lua_pop(L_, 1); // Don't need the value.
if (!lua_isstring(L_, -1)) {
return "keyword table contains non-string key";
LS.rawget(out, keytab, kw);
if (!LS.isnil(out)) {
LS.rawset(found, kw, true);
return true;
} else {
LS.rawget(error, keytab, token_error);
if (!LS.isstring(error)) {
LS.rawset(keytab, token_error, util::ss("required keyword argument not present: ", kw));
}
const char *kw = lua_tostring(L_, -1);
if (parsed_.find(kw) == parsed_.end()) {
eng::ostringstream oss;
oss << "keyword " << kw << " not known";
return oss.str();
return false;
}
};
eng::string LuaKeywordParser::check() {
if (!istable) {
return "keyword arguments must be a table";
}
LS.rawget(error, keytab, token_error);
auto str = LS.trystring(error);
if (str.has_value()) return str.value();
return "";
}
eng::string LuaKeywordParser::final_check() {
if (!istable) {
return "keyword arguments must be a table";
}
LS.rawget(error, keytab, token_error);
auto str = LS.trystring(error);
if (str.has_value()) return str.value();
LS.set(key, LuaNil);
while (LS.next(keytab, key, val)) {
if (LS.istoken(key)) {
continue;
}
auto kw = LS.trystringview(key);
if (!kw.has_value()) {
return "keyword arguments include a non-string key";
}
LS.rawget(val, found, key);
if (!LS.rawequal(val, true)) {
return util::ss("unrecognized keyword argument: ", kw.value());
}
}
return "";
}
void LuaKeywordParser::check_throw() {
eng::string err = check();
if (!err.empty()) {
luaL_error(LS.state(), "%s", err.c_str());
}
}
void LuaKeywordParser::final_check_throw() {
eng::string err = final_check();
if (!err.empty()) {
luaL_error(L_, "%s", err.c_str());
luaL_error(LS.state(), "%s", err.c_str());
}
}

82
luprex/cpp/core/luastack.hpp
View File

@@ -1201,49 +1201,83 @@ public:
//
// * It makes sure the keyword table actually is a table.
//
// * It makes sure that you didn't put an unrecognized keyword
// into the keyword table. Unrecognized keywords are defined
// as keywords that are never checked using 'parse'.
// * It makes sure that all required keywords are present.
//
// * It makes sure that you didn't put anything that isn't a
// keyword into the keyword table.
// known keyword into the keyword table.
//
// This module adds two fields to the table:
//
// [ERROR] - stores an error message, initially nil.
// [FOUND] - the set of keywords successfully parsed.
//
// If at any time, this module detects an error, it doesn't throw.
// Instead, it stores an error report in the table key [ERROR].
// Later, you can check for an error string using the function
// final_check or final_check_throw. If an error is
// detected when there is already an error report in the table,
// the error report is not overwritten, so therefore, the error
// reported is always the first error detected.
//
// When this module finds a keyword in the table, it adds the keyword
// to the [FOUND] set of all keywords successfully parsed.
//
// If the keyword table that you pass in isn't a table at all,
// then the keyword-fetching functions will always return false.
// Later, when you call 'check', an appropriate error will be
// generated.
//
// The lua module 'keywords' contains the same functions as this
// C++ class. You can write code where a C++ function does some
// of the parsing, and the lua code does the rest of the parsing.
//
////////////////////////////////////////////////////////////////////
class LuaKeywordParser {
struct cmp_char {
bool operator () (const char *s1, const char *s2) const {
return strcmp(s1, s2) < 0;
};
};
private:
bool not_table_;
lua_State *L_;
int slot_;
eng::set<const char *, cmp_char> parsed_;
LuaVar found, error, key, val;
LuaSpecial keytab;
LuaExtStack LS;
bool istable;
void init(const lua_State *L, int slot);
public:
// If the slot is not a table, sets the not_table
// flag and creates a dummy table in the slot.
LuaKeywordParser(lua_State *L, int slot);
LuaKeywordParser(const LuaCoreStack &LS, LuaSlot slot) : LuaKeywordParser(LS.state(), slot.index()) {}
LuaKeywordParser(const LuaCoreStack &LS, LuaSlot slot);
// Fetch a value from the table. This never throws.
// Return true if the value is non-nil.
bool parse(LuaSlot slot, const char *kw);
// Fetch the value of the keyword. If the keyword is found, then the
// keyword is added to the [FOUND] set, the value is returned in slot,
// and returns true. Otherwise, sets slot to nil and returns false.
bool optional(LuaSlot slot, const char *kw);
// Check if there were any errors. If so, return an
// error message.
// Fetch the value of the keyword. If the keyword is found, then the
// keyword is added to the [FOUND] set, the value is returned in slot,
// and returns true. Otherwise, sets slot to nil, returns false, and
// stores an [ERROR] report in the keyword table.
bool required(LuaSlot slot, const char *kw);
// Check if there are any errors so far. If any error has been
// detected, returns an error message, otherwise, returns empty
// string.
eng::string check();
// Check if there are any errors so far. Also check that all keyword
// arguments present in the table are in the [FOUND] set. If there are
// any errors, returns an error message, otherwise returns empty string.
eng::string final_check();
// Check if there are any errors. If so, throw a lua error.
// If check() returns an error, throws the error using luaL_error.
void check_throw();
// If final_check() returns an error, throws the error using luaL_error.
void final_check_throw();
// Fetch the state pointer.
lua_State *state() const { return L_; }
lua_State *state() const { return LS.state(); }
};
////////////////////////////////////////////////////////////////////
//
// Lua Byte Reader

16
luprex/cpp/core/planemap.cpp
View File

@@ -834,18 +834,20 @@ void PlaneScan::configure(LuaKeywordParser &kp) {
bool have_shape = false;
bool have_near = false;
if (kp.parse(val, "plane")) {
kp.check_throw();
if (kp.optional(val, "plane")) {
plane_ = LS.ckstring(val, "plane");
have_plane = true;
}
if (kp.parse(val, "center")) {
if (kp.optional(val, "center")) {
util::DXYZ xyz = LS.ckxyz(val, "center");
center_ = xyz;
have_center = true;
}
if (kp.parse(val, "radius")) {
if (kp.optional(val, "radius")) {
auto simple = LS.trynumber(val);
if (simple) {
radius_ = *simple;
@@ -862,7 +864,7 @@ void PlaneScan::configure(LuaKeywordParser &kp) {
}
}
if (kp.parse(val, "shape")) {
if (kp.optional(val, "shape")) {
eng::string shape = LS.ckstring(val, "shape");
if (shape == "box") {
shape_ = BOX;
@@ -876,7 +878,7 @@ void PlaneScan::configure(LuaKeywordParser &kp) {
have_shape = true;
}
if (kp.parse(val, "near")) {
if (kp.optional(val, "near")) {
int64_t id = LS.tanid(val);
if (id == 0) {
luaL_error(L, "scan configuration: 'near' must be a tangible");
@@ -893,14 +895,14 @@ void PlaneScan::configure(LuaKeywordParser &kp) {
have_near = true;
}
if (kp.parse(val, "include")) {
if (kp.optional(val, "include")) {
if (!have_near) {
luaL_error(L, "scan configuration: 'include' specified without 'near'");
}
include_near_ = LS.ckboolean(val, "include");
}
if (kp.parse(val, "wholeplane")) {
if (kp.optional(val, "wholeplane")) {
if (have_plane || have_center || have_radius || have_shape) {
luaL_error(L, "scan configuration: do not specify plane, center, shape, or radius with 'wholeplane'");
}

9
luprex/cpp/core/pprint.cpp
View File

@@ -243,13 +243,14 @@ public:
void PrettyPrintOptions::parse(LuaKeywordParser &kp) {
LuaVar option;
LuaExtStack LS(kp.state(), option);
if (kp.parse(option, "indent")) {
kp.check_throw();
if (kp.optional(option, "indent")) {
indent = LS.ckboolean(option);
}
if (kp.parse(option, "level")) {
if (kp.optional(option, "level")) {
level = LS.ckint(option);
}
if (kp.parse(option, "expand")) {
if (kp.optional(option, "expand")) {
expand = LS.ckboolean(option);
}
}
@@ -306,7 +307,7 @@ LuaDefine(string_pprintx, "options",
PrettyPrintOptions options;
LuaKeywordParser kp(LS, loptions);
options.parse(kp);
if (!kp.parse(value, "value")) {
if (!kp.optional(value, "value")) {
LS.set(value, LuaNil);
}
kp.final_check_throw();

82
luprex/cpp/core/world-accessor.cpp
View File

@@ -183,7 +183,7 @@ LuaDefine(tangible_animate, "tan,options,config",
bool replace = false;
if (!LS.isnil(options)) {
LuaKeywordParser kp(LS, options);
if (kp.parse(option, "replace")) {
if (kp.optional(option, "replace")) {
replace = LS.ckboolean(option);
}
kp.final_check_throw();
@@ -274,27 +274,48 @@ LuaDefine(tangible_delete, "tan",
return LS.result();
}
LuaDefine(tangible_build, "config",
LuaDefine(tangible_build, "config",
"|Build a new tangible object."
"|"
"|The config table must contain: class,animstate."
"|" ){
"|The configuration table must contain the keyword 'class', which"
"|must be the name of a class created with 'makeclass'. It may also"
"|contain the following values:"
"|"
"| bp - the unreal blueprint, defaults to class name."
"| plane - the plane, defaults to actor.plane"
"| xyz - the xyz coordinate, defaults to actor.xyz"
"| facing - the rotation, defaults to actor.facing"
"|"
"|Tangible.build will create an initial animstate containing only"
"|bp, plane, xyz, and facing."
"|"
"|After creating the tangible and setting up the initial animation"
"|state, build will call the constructor for the tangible."
"|The constructor must have this prototype:"
"|"
"| function myclass.init(place, actor, config)"
"|"
"|The configuration table passed to tangible.build is then passed"
"|directly to the init function. The constructor should use the keywords"
"|module to parse the keyword arguments."
"|"
"|The constructor is not allowed to block."
){
LuaArg config;
LuaVar classname, classtab, mt, animstate;
LuaVar classname, classtab, bp, plane, xyz, facing, mt;
LuaRet database;
LuaDefStack LS(L, config, classname, classtab, database, mt, animstate);
LuaDefStack LS(L, config, classname, classtab, bp, plane, xyz, facing, mt, database);
World *w = World::fetch_global_pointer(L);
LuaKeywordParser kp(LS, config);
kp.required(classname, "class");
kp.optional(bp, "bp");
kp.optional(plane, "plane");
kp.optional(xyz, "xyz");
kp.optional(facing, "facing");
kp.check_throw();
// Get the keyword arguments.
if (!kp.parse(classname, "class")) {
luaL_error(L, "You must specify a class for the tangible");
}
if (!kp.parse(animstate, "animstate")) {
luaL_error(L, "You must specify an animstate table");
}
kp.final_check_throw();
// Find the class.
// Verify the class.
eng::string err = LS.getclass(classtab, classname);
if (err != "") {
luaL_error(L, "%s", err.c_str());
@@ -302,19 +323,29 @@ LuaDefine(tangible_build, "config",
// Calculate the initial animation state.
AnimState state;
err = state.from_lua(LS, animstate, true, false);
if (err != "") {
luaL_error(L, "%s", err.c_str());
if (!LS.isnil(bp)) {
state.set_string("bp", LS.ckstring(bp));
} else {
state.set_string("bp", LS.ckstring(classname));
}
if (!state.contains("xyz") || !state.contains("plane")) {
luaL_error(L, "You must specify both xyz and plane in animstate");
if (!LS.isnil(plane)) {
state.set_string("plane", LS.ckstring(plane));
}
err = state.add_defaults(nullptr);
if (!LS.isnil(xyz)) {
state.set_dxyz("xyz", LS.ckxyz(xyz));
}
if (!LS.isnil(facing)) {
state.set_number("facing", LS.cknumber(facing));
}
// Add default values from the actor. Set persistent flags.
Tangible *actor = w->tangible_get(w->lthread_actor_id_);
AnimState actorstate = actor->anim_queue_.get_final_persistent();
err = state.add_defaults(&actorstate);
if (err != "") {
luaL_error(L, "%s", err.c_str());
}
World *w = World::fetch_global_pointer(L);
int64_t new_id = w->alloc_id_predictable();
Tangible *tan = w->tangible_make(LS, database, new_id);
@@ -322,9 +353,12 @@ LuaDefine(tangible_build, "config",
LS.getmetatable(mt, database);
LS.rawset(mt, "__index", classtab);
// Initialize the animstate of the new tangible.
tan->anim_queue_.clear(state);
tan->update_plane_item();
// TODO: call the constructor.
return LS.result();
}
@@ -839,7 +873,7 @@ LuaDefine(pprintx, "options",
PrettyPrintOptions options;
LuaKeywordParser kp(LS, loptions);
options.parse(kp);
if (!kp.parse(value, "value")) {
if (!kp.optional(value, "value")) {
LS.set(value, LuaNil);
}
kp.final_check_throw();

6
luprex/cpp/drv/driver-linux.cpp
View File

@@ -238,9 +238,11 @@ static std::u32string console_read() {
static void call_init_engine_wrapper(const std::filesystem::path &luprexroot, EngineWrapper *w) {
using InitFn = void (*)(EngineWrapper *);
InitFn initfn = (InitFn)dlsym(nullptr, "init_engine_wrapper");
void *exe_handle = dlopen(nullptr, RTLD_NOW | RTLD_LOCAL);
InitFn initfn = (InitFn)dlsym(exe_handle, "init_engine_wrapper");
if (initfn == nullptr) {
std::string path = luprexroot / "build/linux/luprexlib.so";
fprintf(stderr, "loading luprexlib.so...\n");
std::string path = luprexroot / "build/Linux/luprexlib.so";
void *dll_handle = dlopen(path.c_str(), RTLD_NOW | RTLD_LOCAL);
assert(dll_handle != nullptr);
initfn = (InitFn)dlsym(dll_handle, "init_engine_wrapper");