/* AngelCode Scripting Library Copyright (c) 2003-2020 Andreas Jonsson This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. The original version of this library can be located at: http://www.angelcode.com/angelscript/ Andreas Jonsson andreas@angelcode.com */ // // as_module.h // // A class that holds a script module // #ifndef AS_MODULE_H #define AS_MODULE_H #include "as_config.h" #include "as_symboltable.h" #include "as_atomic.h" #include "as_string.h" #include "as_array.h" #include "as_datatype.h" #include "as_scriptfunction.h" #include "as_property.h" BEGIN_AS_NAMESPACE // TODO: import: Remove this when the imported functions are removed const int FUNC_IMPORTED = 0x40000000; class asCScriptEngine; class asCCompiler; class asCBuilder; class asCContext; class asCConfigGroup; class asCTypedefType; class asCFuncdefType; struct asSNameSpace; struct sBindInfo { asCScriptFunction *importedFunctionSignature; asCString importFromModule; int boundFunctionId; }; struct sObjectTypePair { asCObjectType *a; asCObjectType *b; }; // TODO: import: Remove function imports. When I have implemented function // pointers the function imports should be deprecated. // TODO: Need a separate interface for compiling scripts. The asIScriptCompiler // will have a target module, and will allow the compilation of an entire // script or just individual functions within the scope of the module // // With this separation it will be possible to compile the library without // the compiler, thus giving a much smaller binary executable. // TODO: There should be a special compile option that will let the application // recompile an already compiled script. The compiler should check if no // destructive changes have been made (changing function signatures, etc) // then it should simply replace the bytecode within the functions without // changing the values of existing global properties, etc. class asCModule : public asIScriptModule { //------------------------------------------- // Public interface //-------------------------------------------- public: virtual asIScriptEngine *GetEngine() const; virtual void SetName(const char *name); virtual const char *GetName() const; virtual void Discard(); // Compilation virtual int AddScriptSection(const char *name, const char *code, size_t codeLength, int lineOffset); virtual int Build(); virtual int CompileFunction(const char *sectionName, const char *code, int lineOffset, asDWORD reserved, asIScriptFunction **outFunc); virtual int CompileGlobalVar(const char *sectionName, const char *code, int lineOffset); virtual asDWORD SetAccessMask(asDWORD accessMask); virtual int SetDefaultNamespace(const char *nameSpace); virtual const char *GetDefaultNamespace() const; // Script functions virtual asUINT GetFunctionCount() const; virtual asIScriptFunction *GetFunctionByIndex(asUINT index) const; virtual asIScriptFunction *GetFunctionByDecl(const char *decl) const; virtual asIScriptFunction *GetFunctionByName(const char *name) const; virtual int RemoveFunction(asIScriptFunction *func); // Script global variables // TODO: interface: Should be called InitGlobalVars, and should have a bool to reset in case already initialized virtual int ResetGlobalVars(asIScriptContext *ctx); virtual asUINT GetGlobalVarCount() const; virtual int GetGlobalVarIndexByName(const char *name) const; virtual int GetGlobalVarIndexByDecl(const char *decl) const; virtual const char *GetGlobalVarDeclaration(asUINT index, bool includeNamespace) const; virtual int GetGlobalVar(asUINT index, const char **name, const char **nameSpace, int *typeId, bool *isConst) const; virtual void *GetAddressOfGlobalVar(asUINT index); virtual int RemoveGlobalVar(asUINT index); // Type identification virtual asUINT GetObjectTypeCount() const; virtual asITypeInfo *GetObjectTypeByIndex(asUINT index) const; virtual int GetTypeIdByDecl(const char *decl) const; virtual asITypeInfo *GetTypeInfoByName(const char *name) const; virtual asITypeInfo *GetTypeInfoByDecl(const char *decl) const; // Enums virtual asUINT GetEnumCount() const; virtual asITypeInfo *GetEnumByIndex(asUINT index) const; // Typedefs virtual asUINT GetTypedefCount() const; virtual asITypeInfo *GetTypedefByIndex(asUINT index) const; // Dynamic binding between modules virtual asUINT GetImportedFunctionCount() const; virtual int GetImportedFunctionIndexByDecl(const char *decl) const; virtual const char *GetImportedFunctionDeclaration(asUINT importIndex) const; virtual const char *GetImportedFunctionSourceModule(asUINT importIndex) const; virtual int BindImportedFunction(asUINT index, asIScriptFunction *func); virtual int UnbindImportedFunction(asUINT importIndex); virtual int BindAllImportedFunctions(); virtual int UnbindAllImportedFunctions(); // Bytecode Saving/Loading virtual int SaveByteCode(asIBinaryStream *out, bool stripDebugInfo) const; virtual int LoadByteCode(asIBinaryStream *in, bool *wasDebugInfoStripped); // User data virtual void *SetUserData(void *data, asPWORD type); virtual void *GetUserData(asPWORD type) const; //----------------------------------------------- // Internal //----------------------------------------------- asCModule(const char *name, asCScriptEngine *engine); ~asCModule(); //protected: friend class asCScriptEngine; friend class asCBuilder; friend class asCCompiler; friend class asCContext; friend class asCRestore; void InternalReset(); bool IsEmpty() const; bool HasExternalReferences(bool shuttingDown); int CallInit(asIScriptContext *ctx); void CallExit(); int InitGlobalProp(asCGlobalProperty *prop, asIScriptContext *ctx); void JITCompile(); #ifndef AS_NO_COMPILER int AddScriptFunction(int sectionIdx, int declaredAt, int id, const asCString &name, const asCDataType &returnType, const asCArray ¶ms, const asCArray ¶mNames, const asCArray &inOutFlags, const asCArray &defaultArgs, bool isInterface, asCObjectType *objType = 0, bool isGlobalFunction = false, asSFunctionTraits funcTraits = asSFunctionTraits(), asSNameSpace *ns = 0); int AddScriptFunction(asCScriptFunction *func); int AddImportedFunction(int id, const asCString &name, const asCDataType &returnType, const asCArray ¶ms, const asCArray &inOutFlags, const asCArray &defaultArgs, asSFunctionTraits funcTraits, asSNameSpace *ns, const asCString &moduleName); int AddFuncDef(const asCString &name, asSNameSpace *ns, asCObjectType *parent); #endif int GetNextImportedFunctionId(); asCScriptFunction *GetImportedFunction(int funcId) const; asCTypeInfo *GetType(const asCString &type, asSNameSpace *ns) const; asCObjectType *GetObjectType(const char *type, asSNameSpace *ns) const; asCGlobalProperty *AllocateGlobalProperty(const char *name, const asCDataType &dt, asSNameSpace *ns); void UninitializeGlobalProp(asCGlobalProperty *prop); // Adds the class type to the module. The module assumes ownership of the reference without increasing it void AddClassType(asCObjectType*); // Adds the enum type to the module. The module assumes ownership of the reference without increasing it void AddEnumType(asCEnumType*); // Adds the typedef to the module. The module assumes ownership of the reference without increasing it void AddTypeDef(asCTypedefType*); // Adds the funcdef to the module. The module assumes ownership of the reference without increasing it void AddFuncDef(asCFuncdefType*); // Replaces an existing funcdef with another (used for shared funcdefs). Doesn't add or release refCounts void ReplaceFuncDef(asCFuncdefType *oldType, asCFuncdefType *newType); asCString m_name; asCScriptEngine *m_engine; asCBuilder *m_builder; asCArray m_userData; asDWORD m_accessMask; asSNameSpace *m_defaultNamespace; // This array holds all functions, class members, factories, etc that were compiled with the module. // These references hold an internal reference to the function object. asCArray m_scriptFunctions; // increases ref count // This array holds global functions declared in the module. These references are not counted, // as the same pointer is always present in the scriptFunctions array too. asCSymbolTable m_globalFunctions; // doesn't increase ref count // This array holds imported functions in the module. asCArray m_bindInformations; // increases ref count // This array holds template instance types created for the module's object types asCArray m_templateInstances; // increases ref count // This array holds the global variables declared in the script asCSymbolTable m_scriptGlobals; // increases ref count bool m_isGlobalVarInitialized; // This array holds class and interface types asCArray m_classTypes; // increases ref count // This array holds enum types asCArray m_enumTypes; // increases ref count // This array holds typedefs asCArray m_typeDefs; // increases ref count // This array holds the funcdefs declared in the module asCArray m_funcDefs; // increases ref count // This map contains all the types (also contained in the arrays above) for quick lookup // TODO: memory: Can we eliminate the arrays above? asCMap m_typeLookup; // doesn't increase ref count // This array holds types that have been explicitly declared with 'external' asCArray m_externalTypes; // doesn't increase ref count // This array holds functions that have been explicitly declared with 'external' asCArray m_externalFunctions; // doesn't increase ref count }; END_AS_NAMESPACE #endif