feat(autogen): added libraries for Vector3, CFrame and Color3

This commit is contained in:
maelstrom 2025-05-05 10:35:17 +02:00
parent f5727f3b03
commit 2aae16744e
3 changed files with 179 additions and 32 deletions

View file

@ -1,5 +1,6 @@
#include "analysis.h"
#include "../util.h"
#include <cctype>
#include <clang-c/CXFile.h>
#include <clang-c/CXSourceLocation.h>
#include <clang-c/Index.h>
@ -8,6 +9,34 @@
using namespace data;
static std::string toStaticName(std::string orig) {
bool isSnakeCase = orig.find('_') == -1;
std::string newName = "";
int wordStart = 0;
for (char c : orig) {
if (c == '_') {
wordStart = 1;
continue;
}
if (wordStart == 1)
newName += std::toupper(c);
else if (wordStart == 0)
newName += std::tolower(c);
else if (wordStart == 2)
newName += c;
if (c >= 'a' && c <= 'z')
wordStart = 2;
else
wordStart = 0;
}
newName[0] = std::tolower(newName[0]);
return newName;
}
static void processMethod(CXCursor cur, ClassAnalysis* state) {
std::optional<std::string> propertyDef = findAnnotation(cur, "OB::def_data_method");
if (!propertyDef) return;
@ -18,6 +47,8 @@ static void processMethod(CXCursor cur, ClassAnalysis* state) {
std::string symbolName = x_clang_toString(clang_getCursorSpelling(cur));
CXType retType = clang_getCursorResultType(cur);
bool isStatic = clang_CXXMethod_isStatic(cur);
anly.name = result["name"];
anly.functionName = symbolName;
anly.returnType = x_clang_toString(clang_getTypeSpelling(retType));
@ -25,7 +56,10 @@ static void processMethod(CXCursor cur, ClassAnalysis* state) {
// if name field is not provided, use fieldName instead, but capitalize the first character
if (anly.name == "") {
anly.name = symbolName;
if (!isStatic)
anly.name[0] = std::toupper(anly.name[0]);
else
anly.name[0] = std::tolower(anly.name[0]);
}
// Populate parameter list
@ -62,6 +96,8 @@ static void processProperty(CXCursor cur, ClassAnalysis* state) {
std::string symbolName = x_clang_toString(clang_getCursorSpelling(cur));
CXType retType = clang_getCursorResultType(cur);
bool isStatic = clang_getCursorKind(cur) == CXCursor_VarDecl || clang_CXXMethod_isStatic(cur);
anly.name = result["name"];
anly.backingSymbol = symbolName;
anly.valueType = x_clang_toString(clang_getTypeSpelling(retType));
@ -70,11 +106,14 @@ static void processProperty(CXCursor cur, ClassAnalysis* state) {
// if name field is not provided, use fieldName instead, but capitalize the first character
if (anly.name == "") {
anly.name = symbolName;
if (!isStatic)
anly.name[0] = std::toupper(anly.name[0]);
else
anly.name = toStaticName(anly.name);
}
// If it's a static method, push it into the library instead
if (clang_CXXMethod_isStatic(cur))
// If it's a static property, push it into the library instead
if (isStatic)
state->staticProperties.push_back(anly);
else
state->properties.push_back(anly);
@ -96,7 +135,7 @@ static void processClass(CXCursor cur, AnalysisState* state, std::string classNa
x_clang_visitChildren(cur, [&](CXCursor cur, CXCursor parent) {
CXCursorKind kind = clang_getCursorKind(cur);
if (kind == CXCursor_CXXMethod || kind == CXCursor_FieldDecl) {
if (kind == CXCursor_CXXMethod || kind == CXCursor_FieldDecl || kind == CXCursor_VarDecl) {
processProperty(cur, &anly);
}

View file

@ -27,43 +27,21 @@ static std::string getLuaMethodFqn(std::string className, std::string methodName
return "__lua_impl__" + className + "__" + methodName;
}
static void writeLuaLibraryGenerator(std::ofstream& out, ClassAnalysis& state) {
out << "static int lib_gc(lua_State*);"
<< "static int lib_index(lua_State*);"
<< "static int lib_newindex(lua_State*);"
<< "static const struct luaL_Reg metatable [] = {"
<< " {\"__index\", lib_index},"
<< " {\"__newindex\", lib_newindex},"
<< " {NULL, NULL} /* end of array */"
<< "};";
// Create push function
out << "void Data::" << state.name << "::PushLuaLibrary(lua_State* L) {\n";
out << " int n = lua_gettop(L);\n"
<< " lua_newuserdata(L, 0);\n"
<< " luaL_newmetatable(L, \"__mt_" << state.name << "\");\n"
<< " luaL_register(L, NULL, library_metatable);\n"
<< " lua_setmetatable(L, n+1);\n";
out << "}\n";
}
static std::string getMtName(std::string type) {
if (type.starts_with("Data::"))
return "__mt_" + type.substr(6);
return "__mt_" + type;
}
static void writeLuaGetArgument(std::ofstream& out, std::string type, int narg) {
static void writeLuaGetArgument(std::ofstream& out, std::string type, int narg, bool member) {
std::string varname = "arg" + std::to_string(narg);
std::string checkFunc = LUA_CHECK_FUNCS[type];
if (checkFunc != "") {
out << " " << type << " " << varname << " = " << checkFunc << "(L, " << std::to_string(narg) << ");\n";
out << " " << type << " " << varname << " = " << checkFunc << "(L, " << std::to_string(member ? narg + 1 : narg) << ");\n";
} else {
std::string udataname = getMtName(type);
out << " " << type << " " << varname << " = *(" << type << "*)luaL_checkudata(L, " << std::to_string(narg) << ", \"" << udataname << "\");\n";
out << " " << type << " " << varname << " = *(" << type << "*)luaL_checkudata(L, " << std::to_string(member ? narg + 1 : narg) << ", \"" << udataname << "\");\n";
}
}
@ -72,11 +50,16 @@ static void writeLuaMethodImpls(std::ofstream& out, ClassAnalysis& state) {
// Collect all method names to account for overloaded functions
std::map<std::string, std::vector<MethodAnalysis>> methods;
std::map<std::string, std::vector<MethodAnalysis>> staticMethods;
for (MethodAnalysis method : state.methods) {
methods[method.name].push_back(method);
}
for (MethodAnalysis method : state.staticMethods) {
staticMethods[method.name].push_back(method);
}
for (auto& [name, methodImpls] : methods) {
std::string methodFqn = getLuaMethodFqn(state.name, name);
out << "static int " << methodFqn << "(lua_State* L) {\n"
@ -87,7 +70,7 @@ static void writeLuaMethodImpls(std::ofstream& out, ClassAnalysis& state) {
// Currently overloads are not supported
for (int i = 0; i < methodImpls[0].parameters.size(); i++) {
writeLuaGetArgument(out, methodImpls[0].parameters[i].type, i);
writeLuaGetArgument(out, methodImpls[0].parameters[i].type, i, true);
}
// Store result
@ -123,6 +106,51 @@ static void writeLuaMethodImpls(std::ofstream& out, ClassAnalysis& state) {
out << "}\n\n";
}
for (auto& [name, methodImpls] : staticMethods) {
std::string methodFqn = getLuaMethodFqn(state.name, name);
out << "static int " << methodFqn << "(lua_State* L) {\n"
" \n";
// Currently overloads are not supported
for (int i = 0; i < methodImpls[0].parameters.size(); i++) {
writeLuaGetArgument(out, methodImpls[0].parameters[i].type, i, false);
}
// Store result
if (methodImpls[0].returnType != "void")
out << " " << methodImpls[0].returnType << " result = ";
else
out << " ";
// Call function
out << fqn << "::" << methodImpls[0].functionName << "(";
for (int i = 0; i < methodImpls[0].parameters.size(); i++) {
std::string varname = "arg" + std::to_string(i);
if (i != 0) out << ", ";
out << varname;
}
out << ");\n";
// Return result
if (methodImpls[0].returnType != "void") {
std::string mappedType = MAPPED_TYPE[methodImpls[0].returnType];
if (mappedType == "")
out << " result.PushLuaValue(L);\n";
else
out << " " << mappedType << "(result).PushLuaValue(L);\n";
}
if (methodImpls[0].returnType == "void")
out << " return 0;\n";
else
out << " return 1;\n";
out << "}\n\n";
}
}
static void writeLuaValueGenerator(std::ofstream& out, ClassAnalysis& state) {
@ -233,6 +261,80 @@ static void writeLuaValueGenerator(std::ofstream& out, ClassAnalysis& state) {
"}\n\n";
}
static void writeLuaLibraryGenerator(std::ofstream& out, ClassAnalysis& state) {
std::string fqn = "Data::" + state.name;
out << "static int lib_index(lua_State*);\n"
"static const struct luaL_Reg lib_metatable [] = {\n"
" {\"__index\", lib_index},\n"
" {NULL, NULL} /* end of array */\n"
"};\n\n";
out << "void Data::" << state.name << "::PushLuaLibrary(lua_State* L) {\n"
" lua_getglobal(L, \"_G\");\n"
" lua_pushstring(L, \"" << state.name << "\");\n"
"\n"
" lua_newuserdata(L, 0);\n"
"\n"
" // Create the library's metatable\n"
" luaL_newmetatable(L, \"__mt_lib_" << state.name << "\");\n"
" luaL_register(L, NULL, lib_metatable);\n"
" lua_setmetatable(L, -2);\n"
"\n"
" lua_rawset(L, -3);\n"
" lua_pop(L, 1);\n"
"}\n\n";
// Indexing methods and properties
out << "static int lib_index(lua_State* L) {\n"
" std::string key(lua_tostring(L, 2));\n"
" lua_pop(L, 2);\n"
"\n";
out << " ";
bool first = true;
for (PropertyAnalysis prop : state.staticProperties) {
if (!first) out << " else ";
first = false;
out << "if (key == \"" << prop.name << "\") {\n";
std::string type = MAPPED_TYPE[prop.valueType];
if (type == "") type = prop.valueType;
std::string valueExpr;
if (prop.backingType == PropertyBackingType::Field)
valueExpr = fqn + "::" + prop.backingSymbol;
else if (prop.backingType == PropertyBackingType::Method)
valueExpr = fqn + "::" + prop.backingSymbol + "()";
out << " " << type << "(" << valueExpr << ").PushLuaValue(L);\n";
out << " return 1;\n";
out << " }";
}
std::map<std::string, bool> accountedMethods;
for (MethodAnalysis method : state.staticMethods) {
if (accountedMethods[method.name]) continue;
if (!first) out << " else ";
first = false;
accountedMethods[method.name] = true;
out << "if (key == \"" << method.name << "\") {\n";
out << " lua_pushcfunction(L, " << getLuaMethodFqn(state.name, method.name) << ");\n";
out << " return 1;\n";
out << " }";
}
out << "\n\n"
" return luaL_error(L, \"%s is not a valid member of %s\\n\", key.c_str(), \"" << state.name << "\");\n"
"}\n\n";
}
void data::writeCodeForClass(std::ofstream& out, std::string headerPath, ClassAnalysis& state) {
std::string fqn = "Data::" + state.name;
@ -251,7 +353,7 @@ void data::writeCodeForClass(std::ofstream& out, std::string headerPath, ClassAn
<< " return TYPE;\n"
<< "};\n\n";
// writeLuaLibraryGenerator(out, state);
writeLuaMethodImpls(out, state);
writeLuaValueGenerator(out, state);
writeLuaLibraryGenerator(out, state);
}

View file

@ -1,5 +1,7 @@
#include "scriptcontext.h"
#include "datatypes/cframe.h"
#include "datatypes/meta.h"
#include "datatypes/vector.h"
#include "logger.h"
#include <cstdint>
#include <luajit-2.1/lauxlib.h>
@ -41,6 +43,10 @@ void ScriptContext::InitService() {
// luaopen_debug(state);
luaopen_bit(state);
Data::Vector3::PushLuaLibrary(state);
Data::CFrame::PushLuaLibrary(state);
Data::Color3::PushLuaLibrary(state);
// TODO: custom os library
// Override print