Initial work on WebAssembly script provider

CMakeLists.txt

@@ -73,10 +73,15 @@ if (SCRIPT_PROVIDER STREQUAL "angelscript")
                 WORKING_DIRECTORY ${Angelscript_SOURCE_DIR}/angelscript/projects/cmake)
     endif ()
 
-    include_directories(${CMAKE_CURRENT_BINARY_DIR}/include)
     include_directories(${Angelscript_SOURCE_DIR}/angelscript/include)
     include_directories(${Angelscript_SOURCE_DIR}/add_on)
+elseif (SCRIPT_PROVIDER STREQUAL "wasm")
+    message(STATUS "Installing wasmer")
+    execute_process(COMMAND bash -c "curl https://get.wasmer.io -sSfL | WASMER_INSTALL_LOG=0 sh")
+    include_directories($ENV{WASMER_DIR}/include)
 endif ()
+include_directories(${CMAKE_CURRENT_BINARY_DIR}/include)
+
 
 if (WINDOWS)
     SET(CMAKE_SYSTEM_NAME Windows)
@@ -160,13 +165,19 @@ if (SCRIPT_PROVIDER STREQUAL "angelscript")
         set(_TESTLINKS ${_TESTLINKS} AngelscriptDebugger)
     endif ()
     ADD_DEFINITIONS(-D AS_USE_ACCESSORS=1)
+elseif(SCRIPT_PROVIDER STREQUAL "wasm")
+    SET(FILE_SOURCE ${FILE_SOURCE}
+            "src/ScriptResolving/WASM/*.cpp"
+            "src/ScriptResolving/WASM/*.hpp")
+    # FIXME: Add C Interface
 endif ()
 
 file(GLOB_RECURSE CORE_SRC_FILES ${FILE_SOURCE})
 add_library(pkmnLib ${LIBTYPE} ${CORE_SRC_FILES})
 # Enable all warnings, and make them error when occurring.
 target_compile_options(pkmnLib PRIVATE -Wall -Wextra -Werror -pedantic-errors)
-target_link_directories(pkmnLib PUBLIC ${Angelscript_BINARY_DIR})
+
+
 
 # If interprocedural optimization is available, apply it
 check_ipo_supported(RESULT IPO_SUPPORTED)
@@ -180,12 +191,21 @@ SET(_TESTLINKS ${_TESTLINKS} pkmnLib CreatureLib Arbutils)
 
 if (SCRIPT_PROVIDER STREQUAL "angelscript")
     message(STATUS "Using Angelscript as script provider.")
+    target_link_directories(pkmnLib PUBLIC ${Angelscript_BINARY_DIR})
+
     ADD_DEFINITIONS(-D ANGELSCRIPT=1)
     SET(_LINKS ${_LINKS} angelscript)
     SET(_TESTLINKS ${_TESTLINKS} angelscript)
     if (ANGELSCRIPT_DEBUGGER)
         ADD_DEFINITIONS(-D ANGELSCRIPT_DEBUGGER=1)
     endif ()
+elseif (SCRIPT_PROVIDER STREQUAL "wasm")
+    message(STATUS "Using WebAssembly as script provider.")
+    target_link_directories(pkmnLib PUBLIC $ENV{WASMER_DIR}/lib)
+    message($ENV{WASMER_DIR}/lib)
+    ADD_DEFINITIONS(-D WASM=1)
+    SET(_LINKS ${_LINKS} -Wl,-Bstatic wasmer -Wl,-Bdynamic)
+    SET(_TESTLINKS ${_TESTLINKS} -Wl,-Bstatic wasmer -Wl,-Bdynamic)
 endif ()
 
 # If we are building for Windows we need to set some specific variables.
@@ -245,6 +265,8 @@ if (PKMNLIB_TESTS)
     endif ()
 endif ()
 
-if (ANGELSCRIPT_DEBUGGER)
-    include_directories(extern/AngelscriptDebuggerServer/extern/asio-1.18.2/include)
-endif ()
+if (SCRIPT_PROVIDER STREQUAL "angelscript")
+    if (ANGELSCRIPT_DEBUGGER)
+        include_directories(extern/AngelscriptDebuggerServer/extern/asio-1.18.2/include)
+    endif ()
+endif()

sanitizer_ignores

@@ -0,0 +1 @@
+src:*/std_function.h

src/Battling/Library/ScriptResolver.hpp

@@ -1,6 +1,7 @@
 #ifndef PKMNLIB_SCRIPTRESOLVER_HPP
 #define PKMNLIB_SCRIPTRESOLVER_HPP
 
+#include <CreatureLib/Battling/ScriptHandling/ScriptResolver.hpp>
 #include "../EvolutionScript.hpp"
 
 namespace PkmnLib::Battling {

src/Library/Moves/MoveLibrary.hpp

@@ -18,9 +18,19 @@ namespace PkmnLib::Library {
                 return {};
             return res.value().ForceAs<const MoveData>();
         }
+        inline std::optional<ArbUt::BorrowedPtr<const MoveData>> TryGet(u32 hash) const {
+            auto res = CreatureLib::Library::AttackLibrary::TryGet(hash);
+            if (!res.has_value())
+                return {};
+            return res.value().ForceAs<const MoveData>();
+        }
+
         inline ArbUt::BorrowedPtr<const MoveData> Get(const ArbUt::BasicStringView& name) const {
             return CreatureLib::Library::AttackLibrary::Get(name).As<const MoveData>();
         }
+        inline ArbUt::BorrowedPtr<const MoveData> Get(u32 hash) const {
+            return CreatureLib::Library::AttackLibrary::Get(hash).As<const MoveData>();
+        }
     };
 }
 

src/ScriptResolving/WASM/InterfaceMethods/CoreMethods.cpp

@@ -0,0 +1,86 @@
+#include "CoreMethods.hpp"
+#include <cstring>
+#include "../WebAssemblyScriptResolver.hpp"
+#include "WasmHelperFile.hpp"
+#include "wasm.h"
+
+wasm_func_t* CreateErrorFunc(wasm_store_t* store, WebAssemblyScriptResolver* resolver) {
+    // This is probably the most horrific function we need to expose. As we do not want the scripting library to be
+    // responsible for string formatting for size reasons, we pass a lot of data separately. This includes several
+    // strings.
+    return WasmHelpers::CreateFunc<void, i32, i32, i32, i32, i32, i32>(
+        store, resolver, [](void* env, const wasm_val_vec_t* args, wasm_val_vec_t*) -> wasm_trap_t* {
+            auto msg = args->data[0].of.i32;
+            auto msg_len = args->data[1].of.i32;
+            auto file = args->data[2].of.i32;
+            auto file_len = args->data[3].of.i32;
+            auto line = args->data[4].of.i32;
+            auto position = args->data[5].of.i32;
+
+            auto* resolver = (WebAssemblyScriptResolver*)env;
+            auto* msgPointer = wasm_memory_data(resolver->GetMemory()) + msg;
+            auto* filePointer = wasm_memory_data(resolver->GetMemory()) + file;
+
+            auto msgString = std::string_view(msgPointer, msg_len);
+            auto fileString = std::string_view(filePointer, file_len);
+
+            std::stringstream fullMessage;
+            fullMessage << "WASM Error with message: " << msgString << std::endl
+                        << "in file: " << fileString << ". Line: " << line << ":" << position;
+
+            wasm_message_t message;
+            wasm_name_new_from_string_nt(&message, fullMessage.str().c_str());
+            wasm_trap_t* trap = wasm_trap_new(resolver->GetStore(), &message);
+            wasm_name_delete(&message);
+            return trap;
+        });
+}
+
+wasm_func_t* CreatePrintFunc(wasm_store_t* store, WebAssemblyScriptResolver* resolver) {
+    return WasmHelpers::CreateFunc<void, i32, i32>(
+        store, resolver, [](void* env, const wasm_val_vec_t* args, wasm_val_vec_t*) -> wasm_trap_t* {
+            auto msg = args->data[0].of.i32;
+            auto msg_len = args->data[1].of.i32;
+            auto resolver = (WebAssemblyScriptResolver*)env;
+            auto* msgPointer = wasm_memory_data(resolver->GetMemory()) + msg;
+            auto msgString = std::string_view(msgPointer, msg_len);
+            std::cout << msgString << std::endl;
+            return nullptr;
+        });
+    ;
+}
+
+wasm_func_t* ConstString_GetHash(wasm_store_t* store, WebAssemblyScriptResolver* resolver) {
+    return WasmHelpers::CreateFunc2<u32, const ArbUt::StringView*>(
+        store, resolver,
+        std::function<u32(WebAssemblyScriptResolver*, const ArbUt::StringView*)>(
+            [](WebAssemblyScriptResolver*, const ArbUt::StringView* sv) -> u32 { return sv->GetHash(); }));
+}
+
+wasm_func_t* ConstString_GetStr(wasm_store_t* store, WebAssemblyScriptResolver* resolver) {
+    return WasmHelpers::CreateFunc<i32, const ArbUt::StringView*>(
+        store, resolver, [](void* env, const wasm_val_vec_t* args, wasm_val_vec_t* returns) -> wasm_trap_t* {
+            auto resolver = (WebAssemblyScriptResolver*)env;
+            auto& constString = *(ArbUt::StringView*)args->data[0].of.i64;
+
+            // To allow webassembly to access the C String, we need to allocate it inside it's memory.
+            // Length + 1 to make room for the '\0'
+            auto stringPointer = resolver->AllocateMemory(constString.Length() + 1, std::alignment_of<const char>());
+
+            // After we have the pointer to the memory allocated for the string, copy the string with specified length
+            // to it, then suffix it with the null byte to end it.
+            strncpy(reinterpret_cast<char*>(stringPointer.first), constString.c_str(), constString.Length());
+            stringPointer.first[constString.Length()] = '\0';
+
+            returns->data[0] = WASM_I32_VAL(stringPointer.second);
+            return nullptr;
+        });
+}
+
+void WebAssemblyCoreMethods::Register(wasm_store_t* store, ArbUt::Dictionary<std::string, wasm_func_t*>& externs,
+                                      WebAssemblyScriptResolver* resolver) {
+    externs.Insert("_error", CreateErrorFunc(store, resolver));
+    externs.Insert("_print", CreatePrintFunc(store, resolver));
+    externs.Insert("arbutils_const_string_get_hash", ConstString_GetHash(store, resolver));
+    externs.Insert("arbutils_const_string_get_str", ConstString_GetStr(store, resolver));
+}

src/ScriptResolving/WASM/InterfaceMethods/CoreMethods.hpp

@@ -0,0 +1,14 @@
+#ifndef PKMNLIB_COREMETHODS_HPP
+#define PKMNLIB_COREMETHODS_HPP
+
+#include <Arbutils/Collections/Dictionary.hpp>
+#include <wasm.h>
+
+class WebAssemblyScriptResolver;
+class WebAssemblyCoreMethods {
+public:
+    static void Register(wasm_store_t* store, ArbUt::Dictionary<std::string, wasm_func_t*>& externs,
+                         WebAssemblyScriptResolver* resolver);
+};
+
+#endif // PKMNLIB_COREMETHODS_HPP

src/ScriptResolving/WASM/InterfaceMethods/Library/LibraryMethods.cpp

@@ -0,0 +1,39 @@
+#include "LibraryMethods.hpp"
+#include <type_traits>
+#include "../../../../Battling/Library/BattleLibrary.hpp"
+#include "../../WebAssemblyScriptResolver.hpp"
+#include "../WasmHelperFile.hpp"
+#include "wasm.h"
+
+wasm_func_t* MoveLibrary_GetMoveByHash(wasm_store_t* store) {
+    wasm_functype_t* type =
+        wasm_functype_new_2_1(wasm_valtype_new_i64(), wasm_valtype_new_i32(), wasm_valtype_new_i64());
+    auto* f = wasm_func_new(store, type, [](const wasm_val_vec_t* args, wasm_val_vec_t* returns) -> wasm_trap_t* {
+        auto moveLibrary = (PkmnLib::Library::MoveLibrary*)args->data[0].of.i64;
+        auto hash = (u32)args->data[1].of.i32;
+        auto opt = moveLibrary->TryGet(hash);
+        if (!opt.has_value()) {
+           returns->data[0] = WASM_I64_VAL(0);
+        } else{
+            returns->data[0] = WASM_I64_VAL(reinterpret_cast<i64>(moveLibrary->Get(hash).GetRaw()));
+        }
+        return nullptr;
+    });
+    wasm_functype_delete(type);
+    return f;
+}
+
+void LibraryMethods::Register(wasm_store_t* store, ArbUt::Dictionary<std::string, wasm_func_t*>& externs,
+                              WebAssemblyScriptResolver* resolver) {
+    REGISTER_GETTER("battling_battle_library_get_data_library", PkmnLib::Battling::BattleLibrary, GetStaticLib, store,
+                    resolver);
+    REGISTER_GETTER("library_data_library_get_move_library", PkmnLib::Library::PokemonLibrary, GetMoveLibrary, store,
+                    resolver);
+    externs.Insert("library_move_library_get_move_by_hash", MoveLibrary_GetMoveByHash(store));
+
+    REGISTER_GETTER("library_move_data_get_base_power", CreatureLib::Library::AttackData, GetBasePower, store,
+                    resolver);
+
+    REGISTER_GETTER("library_move_data_get_name", CreatureLib::Library::AttackData, GetName, store,
+                    resolver);
+}

src/ScriptResolving/WASM/InterfaceMethods/Library/LibraryMethods.hpp

@@ -0,0 +1,13 @@
+#ifndef PKMNLIB_LIBRARYMETHODS_H
+#define PKMNLIB_LIBRARYMETHODS_H
+#include <Arbutils/Collections/Dictionary.hpp>
+#include <wasm.h>
+
+class WebAssemblyScriptResolver;
+class LibraryMethods {
+public:
+    static void Register(wasm_store_t* store, ArbUt::Dictionary<std::string, wasm_func_t*>& externs,
+                         WebAssemblyScriptResolver* resolver);
+};
+
+#endif // PKMNLIB_LIBRARYMETHODS_H

src/ScriptResolving/WASM/InterfaceMethods/WasmHelperFile.hpp

@@ -0,0 +1,197 @@
+#ifndef PKMNLIB_HELPERFILE_H
+#define PKMNLIB_HELPERFILE_H
+#include <Arbutils/Memory/Memory.hpp>
+#include <memory>
+#include <sstream>
+#include <type_traits>
+#include <wasm.h>
+#include "../WebAssemblyScriptResolver.hpp"
+#include "wasm.h"
+
+template <typename Test, template <typename...> class Ref> struct is_specialization : std::false_type {};
+template <template <typename...> class Ref, typename... Args>
+struct is_specialization<Ref<Args...>, Ref> : std::true_type {};
+template <template <typename...> class Ref, typename... Args>
+struct is_specialization<const Ref<Args...>&, Ref> : std::true_type {};
+template <template <typename...> class Ref, typename... Args>
+struct is_specialization<Ref<Args...>&, Ref> : std::true_type {};
+
+struct WasmHelpers {
+public:
+    static wasm_trap_t* CreateTrapFromException(const ArbUt::Exception& e, const WebAssemblyScriptResolver* resolver) {
+        std::stringstream ss;
+        ss << e.what() << std::endl;
+        ss << e.GetStacktrace() << std::endl;
+
+        wasm_message_t message;
+        wasm_name_new_from_string_nt(&message, ss.str().c_str());
+        wasm_trap_t* trap = wasm_trap_new(resolver->GetStore(), &message);
+        wasm_name_delete(&message);
+        return trap;
+    }
+
+    static wasm_trap_t* FromStdException(const std::exception& e, const WebAssemblyScriptResolver* resolver) {
+        wasm_message_t message;
+        wasm_name_new_from_string_nt(&message, e.what());
+        wasm_trap_t* trap = wasm_trap_new(resolver->GetStore(), &message);
+        wasm_name_delete(&message);
+        return trap;
+    }
+
+    template <typename T, typename R, R (T::*Method)() const>
+    static wasm_func_t* RegisterGetter(wasm_store_t* store, WebAssemblyScriptResolver* resolver) {
+        wasm_functype_t* type = wasm_functype_new_1_1(wasm_valtype_new_i64(), GetValType<R>());
+        auto* f = wasm_func_new_with_env(
+            store, type,
+            [](void* env, const wasm_val_vec_t* args, wasm_val_vec_t* returns) -> wasm_trap_t* {
+                try {
+                    auto obj = (const T*)args->data[0].of.i64;
+                    returns->data[0] = ToVal<R>((obj->*Method)());
+                } catch (ArbUt::Exception& e) {
+                    return CreateTrapFromException(e, (WebAssemblyScriptResolver*)env);
+                } catch (std::exception& e) {
+                    return FromStdException(e, (WebAssemblyScriptResolver*)env);
+                }
+                return nullptr;
+            },
+            resolver, nullptr);
+        wasm_functype_delete(type);
+        return f;
+    }
+
+    template <class R, class... Args>
+    static wasm_func_t* CreateFunc(wasm_store_t* store, WebAssemblyScriptResolver* resolver,
+                                   wasm_func_callback_with_env_t func) {
+        auto funcType = GetFuncType<R, Args...>();
+        auto* f = wasm_func_new_with_env(store, funcType, func, resolver, nullptr);
+        wasm_functype_delete(funcType);
+        return f;
+    }
+
+    template <typename T>
+    inline static T ConvertAllArguments(const wasm_val_vec_t* t, std::size_t& index,
+                                        WebAssemblyScriptResolver* resolver) {
+        return FromVal<T>(t->data[index++], resolver);
+    }
+
+    template <class R, class... Args>
+    static wasm_func_t* CreateFunc2(wasm_store_t* store, WebAssemblyScriptResolver* resolver,
+                                    std::function<R(WebAssemblyScriptResolver*, Args...)> func) {
+        auto funcType = GetFuncType<R, Args...>();
+        struct Env {
+            WebAssemblyScriptResolver* Resolver;
+            std::function<R(WebAssemblyScriptResolver*, Args...)> Func;
+            __attribute__((no_sanitize("address")))
+            ~Env(){}
+        };
+
+        auto env = new Env{.Resolver = resolver, .Func = func};
+        auto* f = wasm_func_new_with_env(
+            store, funcType,
+            [](void* env, const wasm_val_vec_t* parameters, wasm_val_vec_t* results) -> wasm_trap_t* {
+                auto e = *(Env*)env;
+                size_t index = 0;
+                R result = e.Func(e.Resolver, ConvertAllArguments<Args>(parameters, index, e.Resolver)...);
+                results->data[0] = ToVal<R>(result);
+                return nullptr;
+            },
+            env,
+            [](void* env) __attribute__((no_sanitize("address"))) {
+                delete (Env*)env;
+            }
+            );
+        wasm_functype_delete(funcType);
+        return f;
+    }
+
+private:
+    template <class T> inline static wasm_valtype_t* GetValType() {
+        if constexpr (std::is_pointer<T>() || is_specialization<T, ArbUt::BorrowedPtr>::value ||
+                      is_specialization<T, ArbUt::OptionalBorrowedPtr>::value ||
+                      is_specialization<T, std::unique_ptr>::value) {
+            return wasm_valtype_new_i64();
+        } else if constexpr (std::is_enum<T>() || std::is_integral<T>()) {
+            if constexpr (sizeof(T) > 4) {
+                return wasm_valtype_new_i64();
+            } else {
+                return wasm_valtype_new_i32();
+            }
+        } else if constexpr (std::is_same<T, const ArbUt::StringView&>()) {
+            return wasm_valtype_new_i64();
+        }
+        THROW("Unhandled value type: ", typeid(T).name());
+    }
+
+    template <typename T> inline static wasm_val_t ToVal(const T& val) {
+        if constexpr (std::is_pointer<T>()) {
+            return WASM_I64_VAL(reinterpret_cast<i64>(val));
+        } else if constexpr (is_specialization<T, ArbUt::BorrowedPtr>::value) {
+            return WASM_I64_VAL(reinterpret_cast<i64>(val.GetRaw()));
+        } else if constexpr (is_specialization<T, ArbUt::OptionalBorrowedPtr>::value) {
+            return WASM_I64_VAL(reinterpret_cast<i64>(val.GetRaw()));
+        } else if constexpr (is_specialization<T, std::unique_ptr>::value) {
+            return WASM_I64_VAL(reinterpret_cast<i64>(val.get()));
+        } else if constexpr (std::is_enum<T>() || std::is_integral<T>()) {
+            if constexpr (sizeof(T) > 4) {
+                return WASM_I64_VAL((i64)val);
+            } else {
+                return WASM_I32_VAL((i32)val);
+            }
+        } else if constexpr (std::is_same<T, const ArbUt::StringView&>()) {
+            return WASM_I64_VAL(reinterpret_cast<i64>(&val));
+        }
+        THROW("Unhandled value type: ", typeid(T).name());
+    }
+
+    template <typename T> inline static T FromVal(const wasm_val_t& val, WebAssemblyScriptResolver* resolver) {
+        if constexpr (std::is_pointer<T>()) {
+            auto v = reinterpret_cast<void*>(val.of.i64);
+            Ensure(resolver->ValidateLoadedPointer<std::remove_pointer<T>>(v));
+            return (T)v;
+        } else if constexpr (is_specialization<T, ArbUt::BorrowedPtr>::value) {
+            return dynamic_cast<T>(reinterpret_cast<void*>(val.of.i64));
+        } else if constexpr (is_specialization<T, ArbUt::OptionalBorrowedPtr>::value) {
+            return dynamic_cast<T>(reinterpret_cast<void*>(val.of.i64));
+        } else if constexpr (is_specialization<T, std::unique_ptr>::value) {
+            return dynamic_cast<T>(reinterpret_cast<void*>(val.of.i64));
+        } else if constexpr (std::is_enum<T>() || std::is_integral<T>()) {
+            if constexpr (sizeof(T) > 4) {
+                return reinterpret_cast<T>(val.of.i64);
+            } else {
+                return reinterpret_cast<T>(val.of.i32);
+            }
+        }
+        THROW("Unhandled value type: ", typeid(T).name());
+    }
+
+    template <size_t I, class... Args> inline static void AppendArgument(wasm_valtype_t* array[]) {
+        using type = typename std::tuple_element<I, std::tuple<Args...>>::type;
+        array[I] = GetValType<type>();
+        if constexpr (I + 1 < sizeof...(Args)) {
+            AppendArgument<I + 1, Args...>(array);
+        }
+    }
+
+    template <class R, class... Args> static wasm_functype_t* GetFuncType() {
+        wasm_valtype_t* ps[sizeof...(Args)];
+        AppendArgument<0, Args...>(ps);
+
+        wasm_valtype_vec_t params, results;
+        if constexpr (std::is_void<R>()) {
+            results = WASM_EMPTY_VEC;
+        } else {
+            wasm_valtype_t* rs[1] = {GetValType<R>()};
+            wasm_valtype_vec_new(&results, 1, rs);
+        }
+        wasm_valtype_vec_new(&params, sizeof...(Args), ps);
+        return wasm_functype_new(&params, &results);
+    }
+};
+
+#define REGISTER_GETTER(name, cType, cFunc, store, resolver)                                                           \
+    externs.Insert(                                                                                                    \
+        name,                                                                                                          \
+        WasmHelpers::RegisterGetter<cType, std::result_of<decltype (&cType::cFunc)(cType)>::type, &cType::cFunc>(      \
+            store, resolver));
+
+#endif // PKMNLIB_HELPERFILE_H

src/ScriptResolving/WASM/WasmExternRef.hpp

@@ -0,0 +1,13 @@
+#ifndef PKMNLIB_WASMEXTERNREF_HPP
+#define PKMNLIB_WASMEXTERNREF_HPP
+
+template <class T> class WasmExternRef {
+public:
+    WasmExternRef(T* ptr) : _ptr(ptr) {}
+
+    [[nodiscard]] inline T* GetPtr() const noexcept { return _ptr; }
+private:
+    T* _ptr;
+};
+
+#endif // PKMNLIB_WASMEXTERNREF_HPP

src/ScriptResolving/WASM/WebAssemblyBattleScript.cpp

@@ -0,0 +1,40 @@
+#include "WebAssemblyBattleScript.hpp"
+#include "WebAssemblyFunctionCall.hpp"
+#include "WebAssemblyScriptResolver.hpp"
+
+WebAssemblyBattleScript::~WebAssemblyBattleScript() {
+    // Ensure the WebAssembly library can clear up its own junk
+    auto funcOpt = _resolver->GetFunction<1, 0>("destroy_script");
+    if (funcOpt.has_value()) {
+        auto& func = funcOpt.value();
+        func.Loadi32(0, _wasmPtr);
+        func.Call();
+    }
+    // Remove the backwards lookup to this script.
+    _resolver->RemoveRegisteredScript(_wasmPtr);
+}
+
+#define WASM_CALL(capability, script_name, args_count, return_count, parameter_setup)                                  \
+    if (!HasCapability(WebAssemblyScriptCapabilities::capability)) {                                                   \
+        return;                                                                                                        \
+    }                                                                                                                  \
+    auto funcOpt = _resolver->GetFunction<args_count, return_count>(script_name);                                      \
+    if (!funcOpt.has_value()) {                                                                                        \
+        return;                                                                                                        \
+    }                                                                                                                  \
+    auto& func = funcOpt.value();                                                                                       \
+    parameter_setup;                                                                                                   \
+    func.Call();
+
+void WebAssemblyBattleScript::OnInitialize(const CreatureLib::Battling::BattleLibrary* library,
+                                           const ArbUt::List<CreatureLib::Library::EffectParameter*>&) {
+    WASM_CALL(Initialize, "script_on_initialize", 2, 0, {
+        func.Loadi32(0, _wasmPtr);
+        func.LoadExternRef(1, library);
+    });
+}
+
+CreatureLib::Battling::BattleScript* WebAssemblyBattleScript::Clone(const ArbUt::OptionalBorrowedPtr<void>&) {
+    // FIXME: Implement
+    return nullptr;
+}

src/ScriptResolving/WASM/WebAssemblyBattleScript.hpp

@@ -0,0 +1,35 @@
+#ifndef PKMNLIB_WEBASSEMBLYBATTLESCRIPT_H
+#define PKMNLIB_WEBASSEMBLYBATTLESCRIPT_H
+
+#include "../../Battling/PkmnScript.hpp"
+#include "WebAssemblyScriptCapabilities.hpp"
+
+class WebAssemblyScriptResolver;
+class WebAssemblyBattleScript : public PkmnLib::Battling::PkmnScript {
+public:
+    WebAssemblyBattleScript(const ArbUt::OptionalBorrowedPtr<void>& owner, i32 wasm_ptr,
+                            const std::unordered_set<WebAssemblyScriptCapabilities>* capabilities,
+                            WebAssemblyScriptResolver* resolver, const ArbUt::StringView& scriptName)
+        : PkmnScript(owner), _resolver(resolver), _wasmPtr(wasm_ptr), _capabilities(capabilities),
+          _scriptName(scriptName) {}
+    ~WebAssemblyBattleScript();
+
+    BattleScript* Clone(const ArbUt::OptionalBorrowedPtr<void>& owner) non_null override;
+    const ArbUt::StringView& GetName() const noexcept override { return _scriptName; }
+
+public:
+    void OnInitialize(const CreatureLib::Battling::BattleLibrary* library,
+                      const ArbUt::List<CreatureLib::Library::EffectParameter*>& parameters) override;
+
+private:
+    [[nodiscard]] inline bool HasCapability(WebAssemblyScriptCapabilities capability) const noexcept {
+        return _capabilities->contains(capability);
+    }
+
+    WebAssemblyScriptResolver* _resolver;
+    i32 _wasmPtr;
+    const std::unordered_set<WebAssemblyScriptCapabilities>* _capabilities;
+    ArbUt::StringView _scriptName;
+};
+
+#endif // PKMNLIB_WEBASSEMBLYBATTLESCRIPT_H

src/ScriptResolving/WASM/WebAssemblyFunctionCall.hpp

@@ -0,0 +1,107 @@
+#ifndef PKMNLIB_WEBASSEMBLYFUNCTIONCALL_H
+#define PKMNLIB_WEBASSEMBLYFUNCTIONCALL_H
+
+#include <Arbutils/Collections/List.hpp>
+#include <Arbutils/Memory/Memory.hpp>
+#include <wasm.h>
+#include "wasm.h"
+
+template <u32 argsCount, u32 returnsCount>
+class WebAssemblyFunctionCall {
+public:
+    WebAssemblyFunctionCall(const ArbUt::BorrowedPtr<wasm_func_t>& func) : _func(func) {}
+
+    NO_COPY_OR_MOVE(WebAssemblyFunctionCall)
+
+    void Call() {
+        wasm_val_vec_t args = {argsCount, _arguments.Data};
+
+        wasm_val_vec_t results;
+        if constexpr (returnsCount > 0) {
+            results = {returnsCount, _results.Data};
+        } else {
+            results = WASM_EMPTY_VEC;
+        }
+
+        auto* result = wasm_func_call(_func, &args, &results);
+        if (result != nullptr) {
+            wasm_message_t retrieved_message;
+            wasm_trap_message(result, &retrieved_message);
+            auto msg = std::string(retrieved_message.data, retrieved_message.size);
+            THROW(msg);
+        }
+    }
+
+    inline void Loadi32(size_t index, i32 value) { _arguments.Data[index] = WASM_I32_VAL(value); }
+    inline void Loadi64(size_t index, i64 value) { _arguments.Data[index] = WASM_I64_VAL(value); }
+    inline void Loadf32(size_t index, f32 value) { _arguments.Data[index] = WASM_F32_VAL(value); }
+    inline void Loadf64(size_t index, f64 value) { _arguments.Data[index] = WASM_F64_VAL(value); }
+
+    template <class T> inline void LoadExternRef(size_t index, T* value) {
+        _arguments.Data[index] = WASM_I64_VAL(reinterpret_cast<i64>(value));
+    }
+
+    [[nodiscard]] inline i32 GetResultAsi32() const {
+        if constexpr (returnsCount > 0) {
+            Ensure(_results.Data[0].kind == WASM_I32);
+            return _results.Data[0].of.i32;
+        } else {
+            return 0;
+        }
+    }
+    [[nodiscard]] inline i64 GetResultAsi64() const {
+        if constexpr (returnsCount > 0) {
+            Ensure(_results.Data[0].kind == WASM_I64);
+            return _results.Data[0].of.i64;
+        } else {
+            return 0;
+        }
+    }
+    [[nodiscard]] inline f32 GetResultAsf32() const {
+        if constexpr (returnsCount > 0) {
+            Ensure(_results.Data[0].kind == WASM_F32);
+            return _results.Data[0].of.f32;
+        } else {
+            return 0;
+        }
+    }
+    [[nodiscard]] inline f64 GetResultAsf64() const {
+        if constexpr (returnsCount > 0) {
+            Ensure(_results.Data[0].kind == WASM_F64);
+            return _results.Data[0].of.f64;
+        } else {
+            return 0;
+        }
+    }
+
+    template <class T> [[nodiscard]] inline T* GetResultAsExternRef() const {
+        if constexpr (returnsCount > 0) {
+            Ensure(_results.Data[0].kind == WASM_ANYREF);
+            return reinterpret_cast<T*>(_results.Data[0].of.i64);
+        } else {
+            return 0;
+        }
+    }
+
+    inline const wasm_val_t* GetRawResults() const {
+        if constexpr (returnsCount > 0) {
+            return _results.Data;
+        } else {
+            return 0;
+        }
+    }
+
+private:
+    ArbUt::BorrowedPtr<wasm_func_t> _func;
+
+    struct Empty {};
+    template <u32 size> struct NonEmpty { wasm_val_t Data[size]; };
+
+    typedef typename std::conditional<argsCount == 0, Empty, NonEmpty<argsCount>>::type args_t;
+    typedef typename std::conditional<returnsCount == 0, Empty, NonEmpty<returnsCount>>::type result_t;
+
+    args_t _arguments;
+    result_t _results;
+};
+
+#endif // PKMNLIB_WEBASSEMBLYFUNCTIONCALL_H

src/ScriptResolving/WASM/WebAssemblyScriptCapabilities.hpp

@@ -0,0 +1,63 @@
+#ifndef PKMNLIB_WEBASSEMBLYSCRIPTCAPABILITIES_H
+#define PKMNLIB_WEBASSEMBLYSCRIPTCAPABILITIES_H
+
+enum class WebAssemblyScriptCapabilities : u8 {
+    None = 0,
+    Initialize = 1,
+    OnStack,
+    OnRemove,
+    OnBeforeTurn,
+    ChangeAttack,
+    ModifyNumberOfHits,
+    PreventAttack,
+    FailAttack,
+    StopBeforeAttack,
+    OnBeforeAttack,
+    FailIncomingAttack,
+    IsInvulnerable,
+    OnAttackMiss,
+    ChangeAttackType,
+    ChangeEffectiveness,
+    BlockCritical,
+    OnIncomingHit,
+    OnFaintingOpponent,
+    PreventStatBoostChange,
+    ModifyStatBoostChange,
+    PreventSecondaryEffects,
+    OnSecondaryEffect,
+    OnAfterHits,
+    PreventSelfSwitch,
+    ModifyEffectChance,
+    ModifyIncomingEffectChance,
+    OverrideBasePower,
+    ChangeDamageStatsUser,
+    BypassDefensiveStat,
+    BypassOffensiveStat,
+    ModifyStatModifier,
+    ModifyDamageModifier,
+    OverrideDamage,
+    OverrideIncomingDamage,
+    ChangeSpeed,
+    ChangePriority,
+    OnFail,
+    OnOpponentFail,
+    PreventRunAway,
+    PreventOpponentRunAway,
+    PreventOpponentSwitch,
+    OnEndTurn,
+    OnDamage,
+    OnFaint,
+    OnAfterHeldItemConsume,
+    PreventIncomingCritical,
+    ModifyCriticalStage,
+    OverrideCriticalModifier,
+    OverrideSTABModifier,
+    ModifyExperienceGain,
+    DoesShareExperience,
+    BlockWeather,
+    OnSwitchIn,
+    ModifyOffensiveStatValue,
+    ModifyDefensiveStatValue,
+};
+
+#endif // PKMNLIB_WEBASSEMBLYSCRIPTCAPABILITIES_H

src/ScriptResolving/WASM/WebAssemblyScriptResolver.cpp

@@ -0,0 +1,175 @@
+#include "WebAssemblyScriptResolver.hpp"
+#include <iostream>
+#include <unordered_map>
+#include <wasmer.h>
+#include "InterfaceMethods/CoreMethods.hpp"
+#include "InterfaceMethods/Library/LibraryMethods.hpp"
+#include "WebAssemblyBattleScript.hpp"
+#include "WebAssemblyFunctionCall.hpp"
+#include "wasm.h"
+
+PkmnLib::Battling::ScriptResolver* PkmnLib::Battling::BattleLibrary::CreateScriptResolver() {
+    return new WebAssemblyScriptResolver();
+}
+WebAssemblyScriptResolver::WebAssemblyScriptResolver() : _engine(wasm_engine_new()), _store(wasm_store_new(_engine)) {}
+
+WebAssemblyScriptResolver::~WebAssemblyScriptResolver() {
+    wasm_extern_vec_delete(&_exports);
+    for (auto& import : _imports) {
+        wasm_func_delete(import.second);
+    }
+    if (_instance != nullptr) {
+        wasm_instance_delete(_instance);
+    }
+    if (_module != nullptr) {
+        wasm_module_delete(_module);
+    }
+    wasm_store_delete(_store);
+    wasm_engine_delete(_engine);
+}
+
+u8 WebAssemblyScriptResolver::LoadWasmFromFile(const std::string& path) {
+    auto file = fopen(path.c_str(), "rb");
+    if (!file) {
+        return 1;
+    }
+    fseek(file, 0L, SEEK_END);
+    size_t file_size = ftell(file);
+    fseek(file, 0L, SEEK_SET);
+    wasm_byte_vec_t wasm_bytes;
+    wasm_byte_vec_new_uninitialized(&wasm_bytes, file_size);
+    if (fread(wasm_bytes.data, file_size, 1, file) != 1) {
+        wasm_byte_vec_delete(&wasm_bytes);
+        return 2;
+    }
+    fclose(file);
+    _module = wasm_module_new(_store, &wasm_bytes);
+    if (_module == nullptr) {
+        wasm_byte_vec_delete(&wasm_bytes);
+        return 3;
+    }
+    wasm_byte_vec_delete(&wasm_bytes);
+    return 0;
+}
+
+u8 WebAssemblyScriptResolver::LoadWasmFromBytes(std::vector<u8> wasm_bytes) {
+    wasm_byte_vec_t data = {wasm_bytes.size(), (char*)wasm_bytes.data()};
+    _module = wasm_module_new(_store, &data);
+    if (_module == nullptr) {
+        return 3;
+    }
+    return 0;
+}
+
+u8 WebAssemblyScriptResolver::LoadWatFromString(const std::string& data) {
+    wasm_byte_vec_t wat;
+    wasm_byte_vec_new(&wat, data.size(), data.c_str());
+    wasm_byte_vec_t wasm_bytes;
+    wat2wasm(&wat, &wasm_bytes);
+    wasm_byte_vec_delete(&wat);
+    _module = wasm_module_new(_store, &wasm_bytes);
+    if (_module == nullptr) {
+        return 3;
+    }
+    wasm_byte_vec_delete(&wasm_bytes);
+    return 0;
+}
+
+void WebAssemblyScriptResolver::RegisterFunction() {}
+
+void WebAssemblyScriptResolver::RegisterDefaultMethods() {
+    WebAssemblyCoreMethods::Register(_store, _imports, this);
+    LibraryMethods::Register(_store, _imports, this);
+}
+
+void WebAssemblyScriptResolver::Finalize() {
+    RegisterDefaultMethods();
+    auto imports = ArbUt::List<wasm_extern_t*>();
+
+    wasm_importtype_vec_t import_types;
+    wasm_module_imports(_module, &import_types);
+    for (size_t i = 0; i < import_types.size; ++i) {
+        auto importType = import_types.data[i];
+        auto nameWasm = wasm_importtype_name(importType);
+        auto name = std::string(nameWasm->data, nameWasm->size);
+        auto exportFunc = _imports.TryGet(name);
+        if (!exportFunc.has_value()) {
+            THROW("Missing imported WASM function: ", name);
+        }
+        imports.Append(wasm_func_as_extern(exportFunc.value()));
+    }
+
+    wasm_extern_vec_t import_object = {imports.Count(), const_cast<wasm_extern_t**>(imports.RawData())};
+
+    wasm_trap_t* trap = nullptr;
+    _instance = wasm_instance_new(_store, _module, &import_object, &trap);
+    wasm_importtype_vec_delete(&import_types);
+    if (_instance == nullptr) {
+        char* err = new char[wasmer_last_error_length()];
+        wasmer_last_error_message(err, wasmer_last_error_length());
+        std::cout << err << std::endl;
+        delete[] err;
+    }
+
+    EnsureNotNull(_instance);
+
+    wasm_exporttype_vec_t export_types;
+    wasm_module_exports(_module, &export_types);
+    wasm_instance_exports(_instance, &_exports);
+    for (size_t i = 0; i < export_types.size; ++i) {
+        auto t = wasm_externtype_kind(wasm_exporttype_type(export_types.data[i]));
+        if (t == WASM_EXTERN_FUNC) {
+            const auto* name = wasm_exporttype_name(export_types.data[i]);
+
+            _exportedFunctions.Insert(ArbUt::StringView(name->data, name->size), wasm_extern_as_func(_exports.data[i]));
+        } else if (t == WASM_EXTERN_MEMORY) {
+            _memory = wasm_extern_as_memory(_exports.data[i]);
+        }
+    }
+    wasm_exporttype_vec_delete(&export_types);
+    if (_memory != nullptr) {
+        wasm_memory_grow(_memory, 100);
+    }
+}
+
+CreatureLib::Battling::BattleScript*
+WebAssemblyScriptResolver::LoadScript(const ArbUt::OptionalBorrowedPtr<void>& owner, ScriptCategory category,
+                                      const ArbUt::StringView& scriptName) {
+    auto loadScriptOpt = GetFunction<2, 1>("load_script"_cnc);
+    if (!loadScriptOpt.has_value()) {
+        return nullptr;
+    }
+    auto& loadScriptFunc = loadScriptOpt.value();
+    loadScriptFunc.Loadi32(0, static_cast<i32>(category));
+    loadScriptFunc.LoadExternRef(1, &scriptName);
+    loadScriptFunc.Call();
+    auto result = loadScriptFunc.GetResultAsi32();
+    if (result == 0) {
+        return nullptr;
+    }
+    auto key = std::pair<ScriptCategory, ArbUt::StringView>(category, scriptName);
+    auto findCapabilities = _scriptCapabilities.find(key);
+    std::unordered_set<WebAssemblyScriptCapabilities> capabilities;
+    if (findCapabilities != _scriptCapabilities.end()) {
+        capabilities = findCapabilities->second;
+    } else {
+        auto getCapabilitiesOpt = GetFunction<1,2>("get_script_capabilities"_cnc);
+        if (getCapabilitiesOpt.has_value()) {
+            auto& getCapabilitiesFunc = getCapabilitiesOpt.value();
+            getCapabilitiesFunc.Loadi32(0, result);
+            getCapabilitiesFunc.Call();
+            const auto* rawResult = getCapabilitiesFunc.GetRawResults();
+            auto ptr = (WebAssemblyScriptCapabilities*)(wasm_memory_data(_memory) + rawResult[0].of.i32);
+            auto end = (WebAssemblyScriptCapabilities*)(ptr + rawResult[1].of.i32);
+            auto vec = std::vector<WebAssemblyScriptCapabilities>(ptr, end);
+            for (auto capability: vec){
+                capabilities.insert(capability);
+            }
+        }
+        _scriptCapabilities[key] = capabilities;
+    }
+
+    auto script = new WebAssemblyBattleScript(owner, result, &_scriptCapabilities[key], this, scriptName);
+    _loadedScripts.Insert(result, script);
+    return script;
+}

src/ScriptResolving/WASM/WebAssemblyScriptResolver.hpp

@@ -0,0 +1,92 @@
+#ifndef PKMNLIB_WEBASSEMBLYSCRIPTRESOLVER_HPP
+#define PKMNLIB_WEBASSEMBLYSCRIPTRESOLVER_HPP
+
+#include <Arbutils/Collections/Dictionary.hpp>
+#include <optional>
+#include <utility>
+#include <wasm.h>
+#include "../../Battling/Library/ScriptResolver.hpp"
+#include "WebAssemblyBattleScript.hpp"
+#include "WebAssemblyFunctionCall.hpp"
+#include "WebAssemblyScriptCapabilities.hpp"
+
+class WebAssemblyScriptResolver : public PkmnLib::Battling::ScriptResolver {
+public:
+    WebAssemblyScriptResolver();
+    ~WebAssemblyScriptResolver();
+
+    u8 LoadWasmFromFile(const std::string& path);
+    u8 LoadWasmFromBytes(std::vector<u8>);
+    u8 LoadWatFromString(const std::string& data);
+    void RegisterFunction();
+    void Finalize();
+
+    template <u32 argsCount, u32 returnsCount>
+    inline std::optional<WebAssemblyFunctionCall<argsCount, returnsCount>>
+    GetFunction(const ArbUt::StringView& name) const {
+        auto res = _exportedFunctions.TryGet(name);
+        if (!res.has_value()) {
+            return {};
+        }
+        return std::make_optional<WebAssemblyFunctionCall<argsCount, returnsCount>>(
+            ArbUt::BorrowedPtr<wasm_func_t>(res.value()));
+    }
+
+    std::pair<u8*, i32> AllocateMemory(u32 size, u32 align) const {
+        auto funcOpt = GetFunction<2, 1>("allocate_mem");
+        auto& func = funcOpt.value();
+        func.Loadi32(0, size);
+        func.Loadi32(1, align);
+        func.Call();
+        auto memoryOffset = func.GetResultAsi32();
+        return std::make_pair(reinterpret_cast<u8*>(wasm_memory_data(_memory) + memoryOffset), memoryOffset);
+    }
+
+    [[nodiscard]] inline wasm_memory_t* GetMemory() const noexcept { return _memory; }
+
+    CreatureLib::Battling::BattleScript* LoadScript(const ArbUt::OptionalBorrowedPtr<void>& owner,
+                                                    ScriptCategory category,
+                                                    const ArbUt::StringView& scriptName) nullable override;
+
+    [[nodiscard]] inline wasm_store_t* GetStore() const noexcept { return _store; }
+
+    inline void RemoveRegisteredScript(i32 wasmPtr) { _loadedScripts.Remove(wasmPtr); }
+
+    template <typename T>
+    inline void MarkLoadedPointer(T* ptr){
+        _loadedPointers.Set((void*)ptr, typeid(T));
+    }
+
+    template <typename T>
+    inline bool ValidateLoadedPointer(void* ptr){
+        const auto& opt = _loadedPointers.TryGet(ptr);
+        return opt.has_value() && opt.value() == typeid(T);
+    }
+
+private:
+    wasm_engine_t* _engine;
+    wasm_store_t* _store;
+    wasm_module_t* _module = nullptr;
+    wasm_instance_t* _instance = nullptr;
+    wasm_memory_t* _memory = nullptr;
+    ArbUt::Dictionary<std::string, wasm_func_t*> _imports;
+    wasm_extern_vec_t _exports = {0, nullptr};
+    ArbUt::Dictionary<ArbUt::StringView, wasm_func_t*> _exportedFunctions;
+    ArbUt::Dictionary<i32, WebAssemblyBattleScript*> _loadedScripts;
+
+    void RegisterDefaultMethods();
+
+    typedef std::pair<ScriptCategory, ArbUt::StringView> scriptCapabilitiesKey;
+
+    struct pair_hash {
+        template <class T1, class T2> std::size_t operator()(const std::pair<T1, T2>& pair) const {
+            return std::hash<T1>()(pair.first) ^ std::hash<T2>()(pair.second);
+        }
+    };
+    std::unordered_map<scriptCapabilitiesKey, std::unordered_set<WebAssemblyScriptCapabilities>, pair_hash>
+        _scriptCapabilities;
+
+    ArbUt::Dictionary<void*, std::type_info> _loadedPointers;
+};
+
+#endif // PKMNLIB_WEBASSEMBLYSCRIPTRESOLVER_HPP

tests/LibraryTests/SpeciesLibraryTests.cpp

@@ -8,4 +8,9 @@ TEST_CASE("Able to build and destroy empty library") {
     delete lib;
 }
 
+
+REGISTER_EXCEPTION_TRANSLATOR(ArbUt::Exception& ex) {
+    return {(std::string(ex.what()) + "\n" + ex.GetStacktrace()).c_str()};
+}
+
 #endif

tests/ScriptTests/Angelscript/BaseScriptClassTests.cpp

@@ -1,4 +1,4 @@
-#ifdef TESTS_BUILD
+#if TESTS_BUILD and ANGELSCRIPT
 #include <doctest.h>
 #include "../../src/Battling/Pokemon/CreatePokemon.hpp"
 #include "../../src/ScriptResolving/AngelScript/AngelScriptResolver.hpp"

tests/ScriptTests/Angelscript/ItemUseScriptTests.cpp

@@ -1,4 +1,4 @@
-#ifdef TESTS_BUILD
+#if TESTS_BUILD and ANGELSCRIPT
 #include <doctest.h>
 #include "../../src/Battling/Pokemon/CreatePokemon.hpp"
 #include "../../src/ScriptResolving/AngelScript/AngelScriptResolver.hpp"

tests/ScriptTests/Angelscript/MetadataTests.cpp

@@ -1,7 +1,7 @@
 #ifdef TESTS_BUILD
-#include <Arbutils/StringView.hpp>
-#include <doctest.h>
-#include "../../src/ScriptResolving/AngelScript/AngelScriptMetadata.hpp"
+#include "../../../src/ScriptResolving/AngelScript/AngelScriptMetadata.hpp"
+#include "Arbutils/StringView.hpp"
+#include "doctest.h"
 
 TEST_CASE("Metadata without parameters") {
     auto m = AngelscriptMetadata("Foo");

tests/ScriptTests/Angelscript/ScriptOwnerTest.cpp

@@ -1,4 +1,4 @@
-#ifdef TESTS_BUILD
+#if TESTS_BUILD and ANGELSCRIPT
 #include <doctest.h>
 #include "../../src/Battling/Pokemon/CreatePokemon.hpp"
 #include "../../src/ScriptResolving/AngelScript/AngelScriptResolver.hpp"

tests/ScriptTests/Angelscript/ScriptResolverTests.cpp

@@ -1,4 +1,4 @@
-#ifdef TESTS_BUILD
+#if TESTS_BUILD && ANGELSCRIPT
 #include <doctest.h>
 #include "../../src/ScriptResolving/AngelScript/AngelScriptResolver.hpp"
 #include "../../src/ScriptResolving/AngelScript/ContextPool.hpp"

tests/ScriptTests/Angelscript/ScriptTypeTests/Battle/BattleTests.cpp

@@ -1,4 +1,4 @@
-#ifdef TESTS_BUILD
+#if TESTS_BUILD and ANGELSCRIPT
 #include <doctest.h>
 #include "../../../../src/Battling/Battle/Battle.hpp"
 #include "../../../../src/Battling/Pokemon/CreatePokemon.hpp"

tests/ScriptTests/Angelscript/ScriptTypeTests/Battle/PokemonTests.cpp

@@ -1,4 +1,4 @@
-#ifdef TESTS_BUILD
+#if TESTS_BUILD and ANGELSCRIPT
 #include <doctest.h>
 #include "../../../../src/Battling/Pokemon/CreatePokemon.hpp"
 #include "../../../../src/ScriptResolving/AngelScript/AngelScriptResolver.hpp"

tests/ScriptTests/Angelscript/ScriptTypeTests/Library/FormesTests.cpp

@@ -1,4 +1,4 @@
-#ifdef TESTS_BUILD
+#if TESTS_BUILD and ANGELSCRIPT
 #include <doctest.h>
 #include "../../../../src/ScriptResolving/AngelScript/AngelScriptResolver.hpp"
 #include "../../../../src/ScriptResolving/AngelScript/ContextPool.hpp"

tests/ScriptTests/Angelscript/ScriptTypeTests/Library/ItemDataTests.cpp

@@ -1,4 +1,4 @@
-#ifdef TESTS_BUILD
+#if TESTS_BUILD and ANGELSCRIPT
 #include <doctest.h>
 #include "../../../../src/ScriptResolving/AngelScript/AngelScriptResolver.hpp"
 #include "../../../../src/ScriptResolving/AngelScript/ContextPool.hpp"

tests/ScriptTests/Angelscript/ScriptTypeTests/Library/MoveTests.cpp

@@ -1,4 +1,4 @@
-#ifdef TESTS_BUILD
+#if TESTS_BUILD and ANGELSCRIPT
 #include <doctest.h>
 #include "../../../../src/ScriptResolving/AngelScript/AngelScriptResolver.hpp"
 #include "../../../../src/ScriptResolving/AngelScript/ContextPool.hpp"

tests/ScriptTests/Angelscript/ScriptTypeTests/Library/SpeciesTests.cpp

@@ -1,4 +1,4 @@
-#ifdef TESTS_BUILD
+#if TESTS_BUILD && ANGELSCRIPT
 #include <doctest.h>
 #include "../../../../src/ScriptResolving/AngelScript/AngelScriptResolver.hpp"
 #include "../../../../src/ScriptResolving/AngelScript/ContextPool.hpp"

tests/ScriptTests/Angelscript/ScriptTypeTests/Library/StaticLibraryTests.cpp

@@ -1,4 +1,4 @@
-#ifdef TESTS_BUILD
+#if TESTS_BUILD and ANGELSCRIPT
 #include <doctest.h>
 #include "../../../../src/ScriptResolving/AngelScript/AngelScriptResolver.hpp"
 #include "../../../../src/ScriptResolving/AngelScript/ContextPool.hpp"

tests/ScriptTests/WASM/ScriptResolverTests.cpp

@@ -0,0 +1,63 @@
+#if TESTS_BUILD && WASM
+#include <doctest.h>
+#include "../../TestLibrary/TestLibrary.hpp"
+#include "../../src/ScriptResolving/WASM/WebAssemblyFunctionCall.hpp"
+#include "../../src/ScriptResolving/WASM/WebAssemblyScriptResolver.hpp"
+
+TEST_CASE("Get a script resolver, initialize it, then delete it") {
+    auto lib = PkmnLib::Battling::BattleLibrary::CreateScriptResolver();
+    lib->Initialize(TestLibrary::GetLibrary());
+    delete lib;
+}
+
+TEST_CASE("Get a script resolver, load simple wat, run function") {
+    auto lib = dynamic_cast<WebAssemblyScriptResolver*>(PkmnLib::Battling::BattleLibrary::CreateScriptResolver());
+    lib->Initialize(TestLibrary::GetLibrary());
+    auto res = lib->LoadWatFromString(R"(
+(module
+    (type $add_one_t (func (param i32) (result i32)))
+    (func $add_one_f (type $add_one_t) (param $value i32) (result i32)
+        local.get $value
+        i32.const 1
+        i32.add)
+    (export "add_one" (func $add_one_f))
+)
+)");
+    REQUIRE_EQ(0, res);
+    lib->Finalize();
+    auto func_opt = lib->GetFunction<1, 1>("add_one");
+    REQUIRE(func_opt.has_value());
+    auto& func = func_opt.value();
+    func.Loadi32(0, 684);
+    func.Call();
+    REQUIRE_EQ(func.GetResultAsi32(), 685);
+    delete lib;
+}
+
+TEST_CASE("Get a script resolver, load a real wasm script") {
+    auto lib = dynamic_cast<WebAssemblyScriptResolver*>(PkmnLib::Battling::BattleLibrary::CreateScriptResolver());
+    lib->Initialize(TestLibrary::GetLibrary());
+    std::string file_path = __FILE__;
+    std::string dir_path = file_path.substr(0, file_path.rfind("/"));
+    auto res = lib->LoadWasmFromFile(dir_path + "/gen7_scripts_rs.wasm");
+    REQUIRE_EQ(0, res);
+    lib->Finalize();
+    delete lib;
+}
+
+TEST_CASE("Get a script resolver, load a real wasm script, load test script") {
+    ArbUt::ScopedPtr<WebAssemblyScriptResolver> lib =
+        dynamic_cast<WebAssemblyScriptResolver*>(PkmnLib::Battling::BattleLibrary::CreateScriptResolver());
+    lib->Initialize(TestLibrary::GetLibrary());
+    std::string file_path = __FILE__;
+    std::string dir_path = file_path.substr(0, file_path.rfind("/"));
+    auto res = lib->LoadWasmFromFile(dir_path + "/gen7_scripts_rs.wasm");
+    REQUIRE_EQ(0, res);
+    lib->Finalize();
+    auto script = lib->LoadScript(nullptr, ScriptCategory::Attack, "test"_cnc);
+    EnsureNotNull(script);
+    script->OnInitialize(TestLibrary::GetLibrary(), {});
+    delete script;
+}
+
+#endif