243 lines
10 KiB
C++
243 lines
10 KiB
C++
/*
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AngelCode Scripting Library
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Copyright (c) 2003-2019 Andreas Jonsson
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any
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damages arising from the use of this software.
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Permission is granted to anyone to use this software for any
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purpose, including commercial applications, and to alter it and
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redistribute it freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you
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must not claim that you wrote the original software. If you use
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this software in a product, an acknowledgment in the product
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documentation would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and
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must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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The original version of this library can be located at:
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http://www.angelcode.com/angelscript/
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Andreas Jonsson
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andreas@angelcode.com
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*/
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//
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// as_module.h
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//
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// A class that holds a script module
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//
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#ifndef AS_MODULE_H
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#define AS_MODULE_H
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#include "as_config.h"
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#include "as_symboltable.h"
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#include "as_atomic.h"
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#include "as_string.h"
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#include "as_array.h"
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#include "as_datatype.h"
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#include "as_scriptfunction.h"
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#include "as_property.h"
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BEGIN_AS_NAMESPACE
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// TODO: import: Remove this when the imported functions are removed
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const int FUNC_IMPORTED = 0x40000000;
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class asCScriptEngine;
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class asCCompiler;
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class asCBuilder;
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class asCContext;
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class asCConfigGroup;
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class asCTypedefType;
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class asCFuncdefType;
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struct asSNameSpace;
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struct sBindInfo
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{
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asCScriptFunction *importedFunctionSignature;
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asCString importFromModule;
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int boundFunctionId;
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};
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struct sObjectTypePair
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{
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asCObjectType *a;
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asCObjectType *b;
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};
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// TODO: import: Remove function imports. When I have implemented function
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// pointers the function imports should be deprecated.
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// TODO: Need a separate interface for compiling scripts. The asIScriptCompiler
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// will have a target module, and will allow the compilation of an entire
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// script or just individual functions within the scope of the module
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//
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// With this separation it will be possible to compile the library without
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// the compiler, thus giving a much smaller binary executable.
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// TODO: There should be a special compile option that will let the application
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// recompile an already compiled script. The compiler should check if no
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// destructive changes have been made (changing function signatures, etc)
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// then it should simply replace the bytecode within the functions without
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// changing the values of existing global properties, etc.
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class asCModule : public asIScriptModule
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{
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//-------------------------------------------
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// Public interface
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//--------------------------------------------
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public:
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virtual asIScriptEngine *GetEngine() const;
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virtual void SetName(const char *name);
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virtual const char *GetName() const;
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virtual void Discard();
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// Compilation
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virtual int AddScriptSection(const char *name, const char *code, size_t codeLength, int lineOffset);
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virtual int Build();
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virtual int CompileFunction(const char *sectionName, const char *code, int lineOffset, asDWORD reserved, asIScriptFunction **outFunc);
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virtual int CompileGlobalVar(const char *sectionName, const char *code, int lineOffset);
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virtual asDWORD SetAccessMask(asDWORD accessMask);
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virtual int SetDefaultNamespace(const char *nameSpace);
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virtual const char *GetDefaultNamespace() const;
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// Script functions
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virtual asUINT GetFunctionCount() const;
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virtual asIScriptFunction *GetFunctionByIndex(asUINT index) const;
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virtual asIScriptFunction *GetFunctionByDecl(const char *decl) const;
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virtual asIScriptFunction *GetFunctionByName(const char *name) const;
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virtual int RemoveFunction(asIScriptFunction *func);
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// Script global variables
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// TODO: interface: Should be called InitGlobalVars, and should have a bool to reset in case already initialized
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virtual int ResetGlobalVars(asIScriptContext *ctx);
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virtual asUINT GetGlobalVarCount() const;
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virtual int GetGlobalVarIndexByName(const char *name) const;
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virtual int GetGlobalVarIndexByDecl(const char *decl) const;
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virtual const char *GetGlobalVarDeclaration(asUINT index, bool includeNamespace) const;
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virtual int GetGlobalVar(asUINT index, const char **name, const char **nameSpace, int *typeId, bool *isConst) const;
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virtual void *GetAddressOfGlobalVar(asUINT index);
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virtual int RemoveGlobalVar(asUINT index);
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// Type identification
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virtual asUINT GetObjectTypeCount() const;
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virtual asITypeInfo *GetObjectTypeByIndex(asUINT index) const;
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virtual int GetTypeIdByDecl(const char *decl) const;
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virtual asITypeInfo *GetTypeInfoByName(const char *name) const;
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virtual asITypeInfo *GetTypeInfoByDecl(const char *decl) const;
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// Enums
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virtual asUINT GetEnumCount() const;
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virtual asITypeInfo *GetEnumByIndex(asUINT index) const;
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// Typedefs
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virtual asUINT GetTypedefCount() const;
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virtual asITypeInfo *GetTypedefByIndex(asUINT index) const;
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// Dynamic binding between modules
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virtual asUINT GetImportedFunctionCount() const;
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virtual int GetImportedFunctionIndexByDecl(const char *decl) const;
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virtual const char *GetImportedFunctionDeclaration(asUINT importIndex) const;
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virtual const char *GetImportedFunctionSourceModule(asUINT importIndex) const;
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virtual int BindImportedFunction(asUINT index, asIScriptFunction *func);
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virtual int UnbindImportedFunction(asUINT importIndex);
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virtual int BindAllImportedFunctions();
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virtual int UnbindAllImportedFunctions();
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// Bytecode Saving/Loading
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virtual int SaveByteCode(asIBinaryStream *out, bool stripDebugInfo) const;
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virtual int LoadByteCode(asIBinaryStream *in, bool *wasDebugInfoStripped);
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// User data
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virtual void *SetUserData(void *data, asPWORD type);
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virtual void *GetUserData(asPWORD type) const;
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//-----------------------------------------------
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// Internal
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//-----------------------------------------------
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asCModule(const char *name, asCScriptEngine *engine);
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~asCModule();
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//protected:
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friend class asCScriptEngine;
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friend class asCBuilder;
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friend class asCCompiler;
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friend class asCContext;
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friend class asCRestore;
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void InternalReset();
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bool IsEmpty() const;
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bool HasExternalReferences(bool shuttingDown);
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int CallInit(asIScriptContext *ctx);
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void CallExit();
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void JITCompile();
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#ifndef AS_NO_COMPILER
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int AddScriptFunction(int sectionIdx, int declaredAt, int id, const asCString &name, const asCDataType &returnType, const asCArray<asCDataType> ¶ms, const asCArray<asCString> ¶mNames, const asCArray<asETypeModifiers> &inOutFlags, const asCArray<asCString *> &defaultArgs, bool isInterface, asCObjectType *objType = 0, bool isGlobalFunction = false, asSFunctionTraits funcTraits = asSFunctionTraits(), asSNameSpace *ns = 0);
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int AddScriptFunction(asCScriptFunction *func);
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int AddImportedFunction(int id, const asCString &name, const asCDataType &returnType, const asCArray<asCDataType> ¶ms, const asCArray<asETypeModifiers> &inOutFlags, const asCArray<asCString *> &defaultArgs, asSFunctionTraits funcTraits, asSNameSpace *ns, const asCString &moduleName);
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int AddFuncDef(const asCString &name, asSNameSpace *ns, asCObjectType *parent);
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#endif
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int GetNextImportedFunctionId();
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asCScriptFunction *GetImportedFunction(int funcId) const;
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asCTypeInfo *GetType(const char *type, asSNameSpace *ns);
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asCObjectType *GetObjectType(const char *type, asSNameSpace *ns);
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asCGlobalProperty *AllocateGlobalProperty(const char *name, const asCDataType &dt, asSNameSpace *ns);
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void UninitializeGlobalProp(asCGlobalProperty *prop);
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asCString name;
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asCScriptEngine *engine;
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asCBuilder *builder;
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asCArray<asPWORD> userData;
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asDWORD accessMask;
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asSNameSpace *defaultNamespace;
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// This array holds all functions, class members, factories, etc that were compiled with the module.
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// These references hold an internal reference to the function object.
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asCArray<asCScriptFunction *> scriptFunctions; // increases ref count
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// This array holds global functions declared in the module. These references are not counted,
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// as the same pointer is always present in the scriptFunctions array too.
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asCSymbolTable<asCScriptFunction> globalFunctions; // doesn't increase ref count
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// This array holds imported functions in the module.
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asCArray<sBindInfo *> bindInformations; // increases ref count
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// This array holds template instance types created for the module's object types
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asCArray<asCObjectType*> templateInstances; // increases ref count
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// This array holds the global variables declared in the script
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asCSymbolTable<asCGlobalProperty> scriptGlobals; // increases ref count
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bool isGlobalVarInitialized;
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// This array holds class and interface types
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asCArray<asCObjectType*> classTypes; // increases ref count
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// This array holds enum types
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asCArray<asCEnumType*> enumTypes; // increases ref count
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// This array holds typedefs
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asCArray<asCTypedefType*> typeDefs; // increases ref count
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// This array holds the funcdefs declared in the module
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asCArray<asCFuncdefType*> funcDefs; // increases ref count
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// This array holds types that have been explicitly declared with 'external'
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asCArray<asCTypeInfo*> externalTypes; // doesn't increase ref count
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// This array holds functions that have been explicitly declared with 'external'
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asCArray<asCScriptFunction*> externalFunctions; // doesn't increase ref count
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};
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END_AS_NAMESPACE
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#endif
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