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- /*
- AngelCode Scripting Library
- Copyright (c) 2003-2018 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
- [email protected]
- */
- //
- // as_scriptengine.cpp
- //
- // The implementation of the script engine interface
- //
- #include <stdlib.h>
- #include "as_config.h"
- #include "as_scriptengine.h"
- #include "as_builder.h"
- #include "as_context.h"
- #include "as_string_util.h"
- #include "as_tokenizer.h"
- #include "as_texts.h"
- #include "as_module.h"
- #include "as_callfunc.h"
- #include "as_generic.h"
- #include "as_scriptobject.h"
- #include "as_compiler.h"
- #include "as_bytecode.h"
- #include "as_debug.h"
- BEGIN_AS_NAMESPACE
- #ifdef AS_PROFILE
- // Instantiate the profiler once
- CProfiler g_profiler;
- #endif
- extern "C"
- {
- AS_API const char * asGetLibraryVersion()
- {
- #ifdef _DEBUG
- return ANGELSCRIPT_VERSION_STRING " DEBUG";
- #else
- return ANGELSCRIPT_VERSION_STRING;
- #endif
- }
- AS_API const char * asGetLibraryOptions()
- {
- const char *string = " "
- // Options
- #ifdef AS_MAX_PORTABILITY
- "AS_MAX_PORTABILITY "
- #endif
- #ifdef AS_DEBUG
- "AS_DEBUG "
- #endif
- #ifdef AS_NO_CLASS_METHODS
- "AS_NO_CLASS_METHODS "
- #endif
- #ifdef AS_USE_DOUBLE_AS_FLOAT
- "AS_USE_DOUBLE_AS_FLOAT "
- #endif
- #ifdef AS_64BIT_PTR
- "AS_64BIT_PTR "
- #endif
- #ifdef AS_NO_THREADS
- "AS_NO_THREADS "
- #endif
- #ifdef AS_NO_ATOMIC
- "AS_NO_ATOMIC "
- #endif
- #ifdef AS_NO_COMPILER
- "AS_NO_COMPILER "
- #endif
- #ifdef AS_NO_MEMBER_INIT
- "AS_NO_MEMBER_INIT "
- #endif
- #ifdef AS_NO_THISCALL_FUNCTOR_METHOD
- "AS_NO_THISCALL_FUNCTOR_METHOD "
- #endif
- #ifdef AS_NO_EXCEPTIONS
- "AS_NO_EXCEPTIONS "
- #endif
- #ifdef WIP_16BYTE_ALIGN
- "WIP_16BYTE_ALIGN "
- #endif
- #ifdef AS_BIG_ENDIAN
- "AS_BIG_ENDIAN "
- #endif
- // Target system
- #ifdef AS_WIN
- "AS_WIN "
- #endif
- #ifdef AS_LINUX
- "AS_LINUX "
- #endif
- #ifdef AS_MAC
- "AS_MAC "
- #endif
- #ifdef AS_SUN
- "AS_SUN "
- #endif
- #ifdef AS_BSD
- "AS_BSD "
- #endif
- #ifdef AS_XBOX
- "AS_XBOX "
- #endif
- #ifdef AS_XBOX360
- "AS_XBOX360 "
- #endif
- #ifdef AS_PSP
- "AS_PSP "
- #endif
- #ifdef AS_PS2
- "AS_PS2 "
- #endif
- #ifdef AS_PS3
- "AS_PS3 "
- #endif
- #ifdef AS_PSVITA
- "AS_PSVITA "
- #endif
- #ifdef AS_DC
- "AS_DC "
- #endif
- #ifdef AS_GC
- "AS_GC "
- #endif
- #ifdef AS_WII
- "AS_WII "
- #endif
- #ifdef AS_WIIU
- "AS_WIIU "
- #endif
- #ifdef AS_IPHONE
- "AS_IPHONE "
- #endif
- #ifdef AS_ANDROID
- "AS_ANDROID "
- #endif
- #ifdef AS_HAIKU
- "AS_HAIKU "
- #endif
- #ifdef AS_ILLUMOS
- "AS_ILLUMOS "
- #endif
- #ifdef AS_MARMALADE
- "AS_MARMALADE "
- #endif
- // CPU family
- #ifdef AS_PPC
- "AS_PPC "
- #endif
- #ifdef AS_PPC_64
- "AS_PPC_64 "
- #endif
- #ifdef AS_X86
- "AS_X86 "
- #endif
- #ifdef AS_MIPS
- "AS_MIPS "
- #endif
- #ifdef AS_SH4
- "AS_SH4 "
- #endif
- #ifdef AS_XENON
- "AS_XENON "
- #endif
- #ifdef AS_ARM
- "AS_ARM "
- #endif
- #ifdef AS_SOFTFP
- "AS_SOFTFP "
- #endif
- #ifdef AS_X64_GCC
- "AS_X64_GCC "
- #endif
- #ifdef AS_X64_MSVC
- "AS_X64_MSVC "
- #endif
- #ifdef AS_SPARC
- "AS_SPARC "
- #endif
- ;
- return string;
- }
- AS_API asIScriptEngine *asCreateScriptEngine(asDWORD version)
- {
- // Verify the version that the application expects
- if( (version/10000) != (ANGELSCRIPT_VERSION/10000) )
- return 0;
- if( (version/100)%100 != (ANGELSCRIPT_VERSION/100)%100 )
- return 0;
- if( (version%100) > (ANGELSCRIPT_VERSION%100) )
- return 0;
- // Verify the size of the types
- asASSERT( sizeof(asBYTE) == 1 );
- asASSERT( sizeof(asWORD) == 2 );
- asASSERT( sizeof(asDWORD) == 4 );
- asASSERT( sizeof(asQWORD) == 8 );
- asASSERT( sizeof(asPWORD) == sizeof(void*) );
- // Verify the boolean type
- asASSERT( sizeof(bool) == AS_SIZEOF_BOOL );
- asASSERT( true == VALUE_OF_BOOLEAN_TRUE );
- // Verify endianess
- #ifdef AS_BIG_ENDIAN
- asDWORD dw = 0x00010203;
- asQWORD qw = ((asQWORD(0x00010203)<<32)|asQWORD(0x04050607));
- #else
- asDWORD dw = 0x03020100;
- // C++ didn't have a standard way of declaring 64bit literal constants until C++11, so
- // I'm forced to do it like this to avoid compilers warnings when compiling with the full
- // C++ compliance.
- asQWORD qw = ((asQWORD(0x07060504)<<32)|asQWORD(0x03020100));
- #endif
- asASSERT( memcmp("\x00\x01\x02\x03", &dw, 4) == 0 );
- asASSERT( memcmp("\x00\x01\x02\x03\x04\x05\x06\x07", &qw, 8) == 0 );
- UNUSED_VAR(dw);
- UNUSED_VAR(qw);
- return asNEW(asCScriptEngine)();
- }
- } // extern "C"
- // interface
- int asCScriptEngine::SetEngineProperty(asEEngineProp property, asPWORD value)
- {
- switch( property )
- {
- case asEP_ALLOW_UNSAFE_REFERENCES:
- ep.allowUnsafeReferences = value ? true : false;
- break;
- case asEP_OPTIMIZE_BYTECODE:
- ep.optimizeByteCode = value ? true : false;
- break;
- case asEP_COPY_SCRIPT_SECTIONS:
- ep.copyScriptSections = value ? true : false;
- break;
- case asEP_MAX_STACK_SIZE:
- if( value == 0 )
- {
- // Restore default: no limit and initially size 4KB
- ep.maximumContextStackSize = 0;
- }
- else
- {
- // The size is given in bytes, but we only store dwords
- ep.maximumContextStackSize = (asUINT)value/4;
- }
- break;
- case asEP_INIT_STACK_SIZE:
- if (value < 4)
- {
- // At least one dword
- ep.initContextStackSize = 1;
- }
- else
- {
- // The size is given in bytes, but we only store dwords
- ep.initContextStackSize = (asUINT)value / 4;
- }
- break;
- case asEP_USE_CHARACTER_LITERALS:
- ep.useCharacterLiterals = value ? true : false;
- break;
- case asEP_ALLOW_MULTILINE_STRINGS:
- ep.allowMultilineStrings = value ? true : false;
- break;
- case asEP_ALLOW_IMPLICIT_HANDLE_TYPES:
- ep.allowImplicitHandleTypes = value ? true : false;
- break;
- case asEP_BUILD_WITHOUT_LINE_CUES:
- ep.buildWithoutLineCues = value ? true : false;
- break;
- case asEP_INIT_GLOBAL_VARS_AFTER_BUILD:
- ep.initGlobalVarsAfterBuild = value ? true : false;
- break;
- case asEP_REQUIRE_ENUM_SCOPE:
- ep.requireEnumScope = value ? true : false;
- break;
- case asEP_SCRIPT_SCANNER:
- if( value <= 1 )
- ep.scanner = (int)value;
- else
- return asINVALID_ARG;
- break;
- case asEP_INCLUDE_JIT_INSTRUCTIONS:
- ep.includeJitInstructions = value ? true : false;
- break;
- case asEP_STRING_ENCODING:
- if( value <= 1 )
- ep.stringEncoding = (int)value;
- else
- return asINVALID_ARG;
- break;
- case asEP_PROPERTY_ACCESSOR_MODE:
- if( value <= 2 )
- ep.propertyAccessorMode = (int)value;
- else
- return asINVALID_ARG;
- break;
- case asEP_EXPAND_DEF_ARRAY_TO_TMPL:
- ep.expandDefaultArrayToTemplate = value ? true : false;
- break;
- case asEP_AUTO_GARBAGE_COLLECT:
- ep.autoGarbageCollect = value ? true : false;
- break;
- case asEP_DISALLOW_GLOBAL_VARS:
- ep.disallowGlobalVars = value ? true : false;
- break;
- case asEP_ALWAYS_IMPL_DEFAULT_CONSTRUCT:
- ep.alwaysImplDefaultConstruct = value ? true : false;
- break;
- case asEP_COMPILER_WARNINGS:
- if( value <= 2 )
- ep.compilerWarnings = (int)value;
- else
- return asINVALID_ARG;
- break;
- case asEP_DISALLOW_VALUE_ASSIGN_FOR_REF_TYPE:
- ep.disallowValueAssignForRefType = value ? true : false;
- break;
- case asEP_ALTER_SYNTAX_NAMED_ARGS:
- if( value <= 2 )
- ep.alterSyntaxNamedArgs = (int)value;
- else
- return asINVALID_ARG;
- break;
- case asEP_DISABLE_INTEGER_DIVISION:
- ep.disableIntegerDivision = value ? true : false;
- break;
- case asEP_DISALLOW_EMPTY_LIST_ELEMENTS:
- ep.disallowEmptyListElements = value ? true : false;
- break;
- case asEP_PRIVATE_PROP_AS_PROTECTED:
- ep.privatePropAsProtected = value ? true : false;
- break;
- case asEP_ALLOW_UNICODE_IDENTIFIERS:
- ep.allowUnicodeIdentifiers = value ? true : false;
- break;
- case asEP_HEREDOC_TRIM_MODE:
- if (value <= 2)
- ep.heredocTrimMode = (int)value;
- else
- return asINVALID_ARG;
- break;
- case asEP_MAX_NESTED_CALLS:
- if (value > 0xFFFFFFFF)
- ep.maxNestedCalls = 0xFFFFFFFF;
- else
- ep.maxNestedCalls = (asUINT)value;
- break;
- case asEP_GENERIC_CALL_MODE:
- if (value > 1)
- ep.genericCallMode = 1;
- else
- ep.genericCallMode = (asUINT)value;
- break;
- case asEP_INIT_CALL_STACK_SIZE:
- ep.initCallStackSize = (asUINT)value;
- break;
- case asEP_MAX_CALL_STACK_SIZE:
- ep.maxCallStackSize = (asUINT)value;
- break;
- default:
- return asINVALID_ARG;
- }
- return asSUCCESS;
- }
- // interface
- asPWORD asCScriptEngine::GetEngineProperty(asEEngineProp property) const
- {
- switch( property )
- {
- case asEP_ALLOW_UNSAFE_REFERENCES:
- return ep.allowUnsafeReferences;
- case asEP_OPTIMIZE_BYTECODE:
- return ep.optimizeByteCode;
- case asEP_COPY_SCRIPT_SECTIONS:
- return ep.copyScriptSections;
- case asEP_MAX_STACK_SIZE:
- return ep.maximumContextStackSize * 4;
- case asEP_INIT_STACK_SIZE:
- return ep.initContextStackSize * 4;
- case asEP_USE_CHARACTER_LITERALS:
- return ep.useCharacterLiterals;
- case asEP_ALLOW_MULTILINE_STRINGS:
- return ep.allowMultilineStrings;
- case asEP_ALLOW_IMPLICIT_HANDLE_TYPES:
- return ep.allowImplicitHandleTypes;
- case asEP_BUILD_WITHOUT_LINE_CUES:
- return ep.buildWithoutLineCues;
- case asEP_INIT_GLOBAL_VARS_AFTER_BUILD:
- return ep.initGlobalVarsAfterBuild;
- case asEP_REQUIRE_ENUM_SCOPE:
- return ep.requireEnumScope;
- case asEP_SCRIPT_SCANNER:
- return ep.scanner;
- case asEP_INCLUDE_JIT_INSTRUCTIONS:
- return ep.includeJitInstructions;
- case asEP_STRING_ENCODING:
- return ep.stringEncoding;
- case asEP_PROPERTY_ACCESSOR_MODE:
- return ep.propertyAccessorMode;
- case asEP_EXPAND_DEF_ARRAY_TO_TMPL:
- return ep.expandDefaultArrayToTemplate;
- case asEP_AUTO_GARBAGE_COLLECT:
- return ep.autoGarbageCollect;
- case asEP_DISALLOW_GLOBAL_VARS:
- return ep.disallowGlobalVars;
- case asEP_ALWAYS_IMPL_DEFAULT_CONSTRUCT:
- return ep.alwaysImplDefaultConstruct;
- case asEP_COMPILER_WARNINGS:
- return ep.compilerWarnings;
- case asEP_DISALLOW_VALUE_ASSIGN_FOR_REF_TYPE:
- return ep.disallowValueAssignForRefType;
- case asEP_ALTER_SYNTAX_NAMED_ARGS:
- return ep.alterSyntaxNamedArgs;
- case asEP_DISABLE_INTEGER_DIVISION:
- return ep.disableIntegerDivision;
- case asEP_DISALLOW_EMPTY_LIST_ELEMENTS:
- return ep.disallowEmptyListElements;
- case asEP_PRIVATE_PROP_AS_PROTECTED:
- return ep.privatePropAsProtected;
- case asEP_ALLOW_UNICODE_IDENTIFIERS:
- return ep.allowUnicodeIdentifiers;
- case asEP_HEREDOC_TRIM_MODE:
- return ep.heredocTrimMode;
- case asEP_MAX_NESTED_CALLS:
- return ep.maxNestedCalls;
- case asEP_GENERIC_CALL_MODE:
- return ep.genericCallMode;
- case asEP_INIT_CALL_STACK_SIZE:
- return ep.initCallStackSize;
- case asEP_MAX_CALL_STACK_SIZE:
- return ep.maxCallStackSize;
- default:
- return 0;
- }
- UNREACHABLE_RETURN;
- }
- // interface
- asIScriptFunction *asCScriptEngine::CreateDelegate(asIScriptFunction *func, void *obj)
- {
- if( func == 0 || obj == 0 )
- return 0;
- // The function must be a class method
- asITypeInfo *type = func->GetObjectType();
- if( type == 0 )
- return 0;
- // The object type must allow handles
- if( (type->GetFlags() & asOBJ_REF) == 0 || (type->GetFlags() & (asOBJ_SCOPED | asOBJ_NOHANDLE)) )
- return 0;
- // Create the delegate the same way it would be created by the scripts
- return AS_NAMESPACE_QUALIFIER CreateDelegate(reinterpret_cast<asCScriptFunction*>(func), obj);
- }
- asCScriptEngine::asCScriptEngine()
- {
- asCThreadManager::Prepare(0);
- shuttingDown = false;
- inDestructor = false;
- // Engine properties
- {
- ep.allowUnsafeReferences = false;
- ep.optimizeByteCode = true;
- ep.copyScriptSections = true;
- ep.maximumContextStackSize = 0; // no limit
- ep.initContextStackSize = 1024; // 4KB default init stack size
- ep.useCharacterLiterals = false;
- ep.allowMultilineStrings = false;
- ep.allowImplicitHandleTypes = false;
- // TODO: optimize: Maybe this should be turned off by default? If a debugger is not used
- // then this is just slowing down the execution.
- ep.buildWithoutLineCues = false;
- ep.initGlobalVarsAfterBuild = true;
- ep.requireEnumScope = false;
- ep.scanner = 1; // utf8. 0 = ascii
- ep.includeJitInstructions = false;
- ep.stringEncoding = 0; // utf8. 1 = utf16
- ep.propertyAccessorMode = 2; // 0 = disable, 1 = app registered only, 2 = app and script created
- ep.expandDefaultArrayToTemplate = false;
- ep.autoGarbageCollect = true;
- ep.disallowGlobalVars = false;
- ep.alwaysImplDefaultConstruct = false;
- ep.compilerWarnings = 1; // 0 = no warnings, 1 = warning, 2 = treat as error
- // TODO: 3.0.0: disallowValueAssignForRefType should be true by default
- ep.disallowValueAssignForRefType = false;
- ep.alterSyntaxNamedArgs = 0; // 0 = no alternate syntax, 1 = accept alternate syntax but warn, 2 = accept without warning
- ep.disableIntegerDivision = false;
- ep.disallowEmptyListElements = false;
- ep.privatePropAsProtected = false;
- ep.allowUnicodeIdentifiers = false;
- ep.heredocTrimMode = 1; // 0 = never trim, 1 = don't trim on single line, 2 = trim initial and final empty line
- ep.maxNestedCalls = 100;
- ep.genericCallMode = 1; // 0 = old (pre 2.33.0) behavior where generic ignored auto handles, 1 = treat handles like in native call
- ep.initCallStackSize = 10; // 10 levels of calls
- ep.maxCallStackSize = 0; // 0 = no limit
- }
- gc.engine = this;
- tok.engine = this;
- refCount.set(1);
- stringFactory = 0;
- configFailed = false;
- isPrepared = false;
- isBuilding = false;
- deferValidationOfTemplateTypes = false;
- lastModule = 0;
- typeIdSeqNbr = 0;
- currentGroup = &defaultGroup;
- defaultAccessMask = 0xFFFFFFFF; // All bits set so that built-in functions/types will be available to all modules
- msgCallback = 0;
- jitCompiler = 0;
- // Create the global namespace
- defaultNamespace = AddNameSpace("");
- requestCtxFunc = 0;
- returnCtxFunc = 0;
- ctxCallbackParam = 0;
- // We must set the namespace in the built-in types explicitly as
- // this wasn't done by the default constructor. If we do not do
- // this we will get null pointer access in other parts of the code
- scriptTypeBehaviours.nameSpace = defaultNamespace;
- functionBehaviours.nameSpace = defaultNamespace;
- // Reserve function id 0 for no function
- scriptFunctions.PushLast(0);
- // Reserve the first typeIds for the primitive types
- typeIdSeqNbr = asTYPEID_DOUBLE + 1;
- // Make sure typeId for the built-in primitives are defined according to asETypeIdFlags
- asASSERT( GetTypeIdFromDataType(asCDataType::CreatePrimitive(ttVoid, false)) == asTYPEID_VOID );
- asASSERT( GetTypeIdFromDataType(asCDataType::CreatePrimitive(ttBool, false)) == asTYPEID_BOOL );
- asASSERT( GetTypeIdFromDataType(asCDataType::CreatePrimitive(ttInt8, false)) == asTYPEID_INT8 );
- asASSERT( GetTypeIdFromDataType(asCDataType::CreatePrimitive(ttInt16, false)) == asTYPEID_INT16 );
- asASSERT( GetTypeIdFromDataType(asCDataType::CreatePrimitive(ttInt, false)) == asTYPEID_INT32 );
- asASSERT( GetTypeIdFromDataType(asCDataType::CreatePrimitive(ttInt64, false)) == asTYPEID_INT64 );
- asASSERT( GetTypeIdFromDataType(asCDataType::CreatePrimitive(ttUInt8, false)) == asTYPEID_UINT8 );
- asASSERT( GetTypeIdFromDataType(asCDataType::CreatePrimitive(ttUInt16, false)) == asTYPEID_UINT16 );
- asASSERT( GetTypeIdFromDataType(asCDataType::CreatePrimitive(ttUInt, false)) == asTYPEID_UINT32 );
- asASSERT( GetTypeIdFromDataType(asCDataType::CreatePrimitive(ttUInt64, false)) == asTYPEID_UINT64 );
- asASSERT( GetTypeIdFromDataType(asCDataType::CreatePrimitive(ttFloat, false)) == asTYPEID_FLOAT );
- asASSERT( GetTypeIdFromDataType(asCDataType::CreatePrimitive(ttDouble, false)) == asTYPEID_DOUBLE );
- defaultArrayObjectType = 0;
- RegisterScriptObject(this);
- RegisterScriptFunction(this);
- #ifndef AS_NO_EXCEPTIONS
- translateExceptionCallback = false;
- #endif
- }
- void asCScriptEngine::DeleteDiscardedModules()
- {
- // TODO: redesign: Prevent more than one thread from entering this function at the same time.
- // If a thread is already doing the work for the clean-up the other thread should
- // simply return, as the first thread will continue.
- ACQUIRESHARED(engineRWLock);
- asUINT maxCount = discardedModules.GetLength();
- RELEASESHARED(engineRWLock);
- for( asUINT n = 0; n < maxCount; n++ )
- {
- ACQUIRESHARED(engineRWLock);
- asCModule *mod = discardedModules[n];
- RELEASESHARED(engineRWLock);
- if( !mod->HasExternalReferences(shuttingDown) )
- {
- asDELETE(mod, asCModule);
- n--;
- }
- ACQUIRESHARED(engineRWLock);
- // Determine the max count again, since another module may have been discarded during the processing
- maxCount = discardedModules.GetLength();
- RELEASESHARED(engineRWLock);
- }
- // Go over the list of global properties, to see if it is possible to clean
- // up some variables that are no longer referred to by any functions
- for( asUINT n = 0; n < globalProperties.GetLength(); n++ )
- {
- asCGlobalProperty *prop = globalProperties[n];
- if( prop && prop->refCount.get() == 1 )
- RemoveGlobalProperty(prop);
- }
- }
- asCScriptEngine::~asCScriptEngine()
- {
- // TODO: clean-up: Clean up redundant code
- inDestructor = true;
- asASSERT(refCount.get() == 0);
- // If ShutDown hasn't been called yet do it now
- if( !shuttingDown )
- {
- AddRef();
- ShutDownAndRelease();
- }
- // Unravel the registered interface
- if( defaultArrayObjectType )
- {
- defaultArrayObjectType->ReleaseInternal();
- defaultArrayObjectType = 0;
- }
- // Delete the functions for generated template types that may references object types
- for( asUINT n = 0; n < templateInstanceTypes.GetLength(); n++ )
- {
- asCObjectType *templateType = templateInstanceTypes[n];
- if( templateInstanceTypes[n] )
- templateType->DestroyInternal();
- }
- for( asUINT n = 0; n < listPatternTypes.GetLength(); n++ )
- {
- asCObjectType *type = listPatternTypes[n];
- if( type )
- type->ReleaseInternal();
- }
- listPatternTypes.SetLength(0);
- // No script types must have survived
- asASSERT( sharedScriptTypes.GetLength() == 0 );
- // It is allowed to create new references to the engine temporarily while destroying objects
- // but these references must be release immediately or else something is can go wrong later on
- if( refCount.get() > 0 )
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_ENGINE_REF_COUNT_ERROR_DURING_SHUTDOWN);
- mapTypeIdToTypeInfo.EraseAll();
- // First remove what is not used, so that other groups can be deleted safely
- defaultGroup.RemoveConfiguration(this, true);
- while( configGroups.GetLength() )
- {
- // Delete config groups in the right order
- asCConfigGroup *grp = configGroups.PopLast();
- if( grp )
- {
- grp->RemoveConfiguration(this);
- asDELETE(grp,asCConfigGroup);
- }
- }
- // Remove what is remaining
- defaultGroup.RemoveConfiguration(this);
- // Any remaining objects in templateInstanceTypes is from generated template instances
- for( asUINT n = 0; n < templateInstanceTypes.GetLength(); n++ )
- {
- asCObjectType *templateType = templateInstanceTypes[n];
- if( templateInstanceTypes[n] )
- templateType->ReleaseInternal();
- }
- templateInstanceTypes.SetLength(0);
- asCSymbolTable<asCGlobalProperty>::iterator it = registeredGlobalProps.List();
- for( ; it; it++ )
- {
- RemoveGlobalProperty(*it);
- (*it)->Release();
- }
- registeredGlobalProps.Clear();
- for( asUINT n = 0; n < templateSubTypes.GetLength(); n++ )
- {
- if( templateSubTypes[n] )
- {
- templateSubTypes[n]->DestroyInternal();
- templateSubTypes[n]->ReleaseInternal();
- }
- }
- templateSubTypes.SetLength(0);
- registeredTypeDefs.SetLength(0);
- registeredEnums.SetLength(0);
- registeredObjTypes.SetLength(0);
- asCSymbolTable<asCScriptFunction>::iterator funcIt = registeredGlobalFuncs.List();
- for( ; funcIt; funcIt++ )
- (*funcIt)->ReleaseInternal();
- registeredGlobalFuncs.Clear();
- scriptTypeBehaviours.ReleaseAllFunctions();
- functionBehaviours.ReleaseAllFunctions();
- for( asUINT n = 0; n < scriptFunctions.GetLength(); n++ )
- if( scriptFunctions[n] )
- {
- scriptFunctions[n]->DestroyInternal();
- // Set the engine pointer to null to signal that the function is no longer part of the engine
- scriptFunctions[n]->engine = 0;
- }
- scriptFunctions.SetLength(0);
- // Increase the internal ref count for these builtin object types, so the destructor is not called incorrectly
- scriptTypeBehaviours.AddRefInternal();
- functionBehaviours.AddRefInternal();
- // Destroy the funcdefs
- // As funcdefs are shared between modules it shouldn't be a problem to keep the objects until the engine is released
- for( asUINT n = 0; n < funcDefs.GetLength(); n++ )
- if( funcDefs[n] )
- {
- funcDefs[n]->DestroyInternal();
- funcDefs[n]->ReleaseInternal();
- }
- funcDefs.SetLength(0);
- // Free the global properties
- for( asUINT n = 0; n < globalProperties.GetLength(); n++ )
- {
- asCGlobalProperty *prop = globalProperties[n];
- if( prop )
- {
- asASSERT( prop->refCount.get() == 1 );
- RemoveGlobalProperty(prop);
- }
- }
- // Free the script section names
- for( asUINT n = 0; n < scriptSectionNames.GetLength(); n++ )
- asDELETE(scriptSectionNames[n],asCString);
- scriptSectionNames.SetLength(0);
- // Clean the user data
- for( asUINT n = 0; n < userData.GetLength(); n += 2 )
- {
- if( userData[n+1] )
- {
- for( asUINT c = 0; c < cleanEngineFuncs.GetLength(); c++ )
- if( cleanEngineFuncs[c].type == userData[n] )
- cleanEngineFuncs[c].cleanFunc(this);
- }
- }
- // Free namespaces
- for( asUINT n = 0; n < nameSpaces.GetLength(); n++ )
- asDELETE(nameSpaces[n], asSNameSpace);
- nameSpaces.SetLength(0);
- asCThreadManager::Unprepare();
- }
- // interface
- int asCScriptEngine::SetContextCallbacks(asREQUESTCONTEXTFUNC_t requestCtx, asRETURNCONTEXTFUNC_t returnCtx, void *param)
- {
- // Both callbacks or neither must be set
- if( (requestCtx == 0 && returnCtx != 0) || (requestCtx != 0 && returnCtx == 0) )
- return asINVALID_ARG;
- requestCtxFunc = requestCtx;
- returnCtxFunc = returnCtx;
- ctxCallbackParam = param;
- return 0;
- }
- // interface
- asIScriptContext *asCScriptEngine::RequestContext()
- {
- if( requestCtxFunc )
- {
- // The return callback must also exist
- asASSERT( returnCtxFunc );
- asIScriptContext *ctx = requestCtxFunc(this, ctxCallbackParam);
- return ctx;
- }
- // As fallback we create a new context
- return CreateContext();
- }
- // internal
- asCModule *asCScriptEngine::FindNewOwnerForSharedType(asCTypeInfo *in_type, asCModule *in_mod)
- {
- asASSERT( in_type->IsShared() );
- if( in_type->module != in_mod)
- return in_type->module;
- for( asUINT n = 0; n < scriptModules.GetLength(); n++ )
- {
- // TODO: optimize: If the modules already stored the shared types separately, this would be quicker
- int foundIdx = -1;
- asCModule *mod = scriptModules[n];
- if( mod == in_type->module ) continue;
- if( in_type->flags & asOBJ_ENUM )
- foundIdx = mod->enumTypes.IndexOf(CastToEnumType(in_type));
- else if (in_type->flags & asOBJ_TYPEDEF)
- foundIdx = mod->typeDefs.IndexOf(CastToTypedefType(in_type));
- else if (in_type->flags & asOBJ_FUNCDEF)
- foundIdx = mod->funcDefs.IndexOf(CastToFuncdefType(in_type));
- else if (in_type->flags & asOBJ_TEMPLATE)
- foundIdx = mod->templateInstances.IndexOf(CastToObjectType(in_type));
- else
- foundIdx = mod->classTypes.IndexOf(CastToObjectType(in_type));
- if( foundIdx >= 0 )
- {
- in_type->module = mod;
- break;
- }
- }
- return in_type->module;
- }
- // internal
- asCModule *asCScriptEngine::FindNewOwnerForSharedFunc(asCScriptFunction *in_func, asCModule *in_mod)
- {
- asASSERT( in_func->IsShared() );
- asASSERT(!(in_func->funcType & asFUNC_FUNCDEF));
- if( in_func->module != in_mod)
- return in_func->module;
- for( asUINT n = 0; n < scriptModules.GetLength(); n++ )
- {
- // TODO: optimize: If the modules already stored the shared types separately, this would be quicker
- int foundIdx = -1;
- asCModule *mod = scriptModules[n];
- if( mod == in_func->module ) continue;
- foundIdx = mod->scriptFunctions.IndexOf(in_func);
- if( foundIdx >= 0 )
- {
- in_func->module = mod;
- break;
- }
- }
- return in_func->module;
- }
- // interface
- void asCScriptEngine::ReturnContext(asIScriptContext *ctx)
- {
- if( returnCtxFunc )
- {
- returnCtxFunc(this, ctx, ctxCallbackParam);
- return;
- }
- // As fallback we just release the context
- if( ctx )
- ctx->Release();
- }
- // interface
- int asCScriptEngine::AddRef() const
- {
- asASSERT( refCount.get() > 0 || inDestructor );
- return refCount.atomicInc();
- }
- // interface
- int asCScriptEngine::Release() const
- {
- int r = refCount.atomicDec();
- if( r == 0 )
- {
- // It is possible that some function will temporarily increment the engine ref count
- // during clean-up for example while destroying the objects in the garbage collector.
- if( !inDestructor )
- asDELETE(const_cast<asCScriptEngine*>(this),asCScriptEngine);
- return 0;
- }
- return r;
- }
- // interface
- int asCScriptEngine::ShutDownAndRelease()
- {
- // Do a full garbage collection cycle to clean up any object that may still hold on to the engine
- GarbageCollect();
- // Set the flag that the engine is being shutdown now. This will speed up
- // the process, and will also allow the engine to warn about invalid calls
- shuttingDown = true;
- // Clear the context callbacks. If new context's are needed for the clean-up the engine will take care of this itself.
- // Context callbacks are normally used for pooling contexts, and if we allow new contexts to be created without being
- // immediately destroyed afterwards it means the engine's refcount will increase. This is turn may cause memory access
- // violations later on when the pool releases its contexts.
- SetContextCallbacks(0, 0, 0);
- // The modules must be deleted first, as they may use
- // object types from the config groups
- for( asUINT n = (asUINT)scriptModules.GetLength(); n-- > 0; )
- if( scriptModules[n] )
- scriptModules[n]->Discard();
- scriptModules.SetLength(0);
- // Do another full garbage collection to destroy the object types/functions
- // that may have been placed in the gc when destroying the modules
- GarbageCollect();
- // Do another sweep to delete discarded modules, that may not have
- // been deleted earlier due to still having external references
- DeleteDiscardedModules();
- // If the application hasn't registered GC behaviours for all types
- // that can form circular references with script types, then there
- // may still be objects in the GC.
- gc.ReportAndReleaseUndestroyedObjects();
- // Release the engine reference
- return Release();
- }
- // internal
- asSNameSpace *asCScriptEngine::AddNameSpace(const char *name)
- {
- // First check if it doesn't exist already
- asSNameSpace *ns = FindNameSpace(name);
- if( ns ) return ns;
- ns = asNEW(asSNameSpace);
- if( ns == 0 )
- {
- // Out of memory
- return 0;
- }
- ns->name = name;
- nameSpaces.PushLast(ns);
- return ns;
- }
- // internal
- asSNameSpace *asCScriptEngine::FindNameSpace(const char *name) const
- {
- // TODO: optimize: Improve linear search
- for( asUINT n = 0; n < nameSpaces.GetLength(); n++ )
- if( nameSpaces[n]->name == name )
- return nameSpaces[n];
- return 0;
- }
- // interface
- const char *asCScriptEngine::GetDefaultNamespace() const
- {
- return defaultNamespace->name.AddressOf();
- }
- // interface
- int asCScriptEngine::SetDefaultNamespace(const char *nameSpace)
- {
- if( nameSpace == 0 )
- return ConfigError(asINVALID_ARG, "SetDefaultNamespace", nameSpace, 0);
- asCString ns = nameSpace;
- if( ns != "" )
- {
- // Make sure the namespace is composed of alternating identifier and ::
- size_t pos = 0;
- bool expectIdentifier = true;
- size_t len;
- eTokenType t = ttIdentifier;
- for( ; pos < ns.GetLength(); pos += len)
- {
- t = tok.GetToken(ns.AddressOf() + pos, ns.GetLength() - pos, &len);
- if( (expectIdentifier && t != ttIdentifier) || (!expectIdentifier && t != ttScope) )
- return ConfigError(asINVALID_DECLARATION, "SetDefaultNamespace", nameSpace, 0);
- // Make sure parent namespaces are registred in case of nested namespaces
- if (expectIdentifier)
- AddNameSpace(ns.SubString(0, pos + len).AddressOf());
- expectIdentifier = !expectIdentifier;
- }
- // If the namespace ends with :: then strip it off
- if( t == ttScope )
- ns.SetLength(ns.GetLength()-2);
- }
- defaultNamespace = AddNameSpace(ns.AddressOf());
- return 0;
- }
- // interface
- void *asCScriptEngine::SetUserData(void *data, asPWORD type)
- {
- // As a thread might add a new new user data at the same time as another
- // it is necessary to protect both read and write access to the userData member
- ACQUIREEXCLUSIVE(engineRWLock);
- // It is not intended to store a lot of different types of userdata,
- // so a more complex structure like a associative map would just have
- // more overhead than a simple array.
- for( asUINT n = 0; n < userData.GetLength(); n += 2 )
- {
- if( userData[n] == type )
- {
- void *oldData = reinterpret_cast<void*>(userData[n+1]);
- userData[n+1] = reinterpret_cast<asPWORD>(data);
- RELEASEEXCLUSIVE(engineRWLock);
- return oldData;
- }
- }
- userData.PushLast(type);
- userData.PushLast(reinterpret_cast<asPWORD>(data));
- RELEASEEXCLUSIVE(engineRWLock);
- return 0;
- }
- // interface
- void *asCScriptEngine::GetUserData(asPWORD type) const
- {
- // There may be multiple threads reading, but when
- // setting the user data nobody must be reading.
- ACQUIRESHARED(engineRWLock);
- for( asUINT n = 0; n < userData.GetLength(); n += 2 )
- {
- if( userData[n] == type )
- {
- RELEASESHARED(engineRWLock);
- return reinterpret_cast<void*>(userData[n+1]);
- }
- }
- RELEASESHARED(engineRWLock);
- return 0;
- }
- // interface
- int asCScriptEngine::SetMessageCallback(const asSFuncPtr &callback, void *obj, asDWORD callConv)
- {
- msgCallback = true;
- msgCallbackObj = obj;
- bool isObj = false;
- if( (unsigned)callConv == asCALL_GENERIC || (unsigned)callConv == asCALL_THISCALL_OBJFIRST || (unsigned)callConv == asCALL_THISCALL_OBJLAST )
- {
- msgCallback = false;
- return asNOT_SUPPORTED;
- }
- if( (unsigned)callConv >= asCALL_THISCALL )
- {
- isObj = true;
- if( obj == 0 )
- {
- msgCallback = false;
- return asINVALID_ARG;
- }
- }
- int r = DetectCallingConvention(isObj, callback, callConv, 0, &msgCallbackFunc);
- if( r < 0 ) msgCallback = false;
- return r;
- }
- // interface
- int asCScriptEngine::ClearMessageCallback()
- {
- msgCallback = false;
- return 0;
- }
- // interface
- int asCScriptEngine::WriteMessage(const char *section, int row, int col, asEMsgType type, const char *message)
- {
- // Validate input parameters
- if( section == 0 ||
- message == 0 )
- return asINVALID_ARG;
- // If there is no callback then there's nothing to do
- if( !msgCallback )
- return 0;
- // If a pre-message has been set, then write that first
- if( preMessage.isSet )
- {
- asSMessageInfo msg;
- msg.section = preMessage.scriptname.AddressOf();
- msg.row = preMessage.r;
- msg.col = preMessage.c;
- msg.type = asMSGTYPE_INFORMATION;
- msg.message = preMessage.message.AddressOf();
- if( msgCallbackFunc.callConv < ICC_THISCALL )
- CallGlobalFunction(&msg, msgCallbackObj, &msgCallbackFunc, 0);
- else
- CallObjectMethod(msgCallbackObj, &msg, &msgCallbackFunc, 0);
- preMessage.isSet = false;
- }
- // Write the message to the callback
- asSMessageInfo msg;
- msg.section = section;
- msg.row = row;
- msg.col = col;
- msg.type = type;
- msg.message = message;
- if( msgCallbackFunc.callConv < ICC_THISCALL )
- CallGlobalFunction(&msg, msgCallbackObj, &msgCallbackFunc, 0);
- else
- CallObjectMethod(msgCallbackObj, &msg, &msgCallbackFunc, 0);
- return 0;
- }
- int asCScriptEngine::SetJITCompiler(asIJITCompiler *compiler)
- {
- jitCompiler = compiler;
- return asSUCCESS;
- }
- asIJITCompiler *asCScriptEngine::GetJITCompiler() const
- {
- return jitCompiler;
- }
- // interface
- asETokenClass asCScriptEngine::ParseToken(const char *string, size_t stringLength, asUINT *tokenLength) const
- {
- if( stringLength == 0 )
- stringLength = strlen(string);
- size_t len;
- asETokenClass tc;
- tok.GetToken(string, stringLength, &len, &tc);
- if( tokenLength )
- *tokenLength = (asUINT)len;
- return tc;
- }
- // interface
- asIScriptModule *asCScriptEngine::GetModule(const char *module, asEGMFlags flag)
- {
- asCModule *mod = GetModule(module, false);
- if( flag == asGM_ALWAYS_CREATE )
- {
- if( mod != 0 )
- mod->Discard();
- return GetModule(module, true);
- }
- if( mod == 0 && flag == asGM_CREATE_IF_NOT_EXISTS )
- return GetModule(module, true);
- return mod;
- }
- // interface
- int asCScriptEngine::DiscardModule(const char *module)
- {
- asCModule *mod = GetModule(module, false);
- if( mod == 0 ) return asNO_MODULE;
- mod->Discard();
- return 0;
- }
- // interface
- asUINT asCScriptEngine::GetModuleCount() const
- {
- ACQUIRESHARED(engineRWLock);
- asUINT length = asUINT(scriptModules.GetLength());
- RELEASESHARED(engineRWLock);
- return length;
- }
- // interface
- asIScriptModule *asCScriptEngine::GetModuleByIndex(asUINT index) const
- {
- asIScriptModule *mod = 0;
- ACQUIRESHARED(engineRWLock);
- if( index < scriptModules.GetLength() )
- mod = scriptModules[index];
- RELEASESHARED(engineRWLock);
- return mod;
- }
- // internal
- int asCScriptEngine::GetFactoryIdByDecl(const asCObjectType *ot, const char *decl)
- {
- asCModule *mod = 0;
- // Is this a script class?
- if( (ot->flags & asOBJ_SCRIPT_OBJECT) && ot->size > 0 )
- mod = scriptFunctions[ot->beh.factories[0]]->module;
- asCBuilder bld(this, mod);
- // Don't write parser errors to the message callback
- bld.silent = true;
- asCScriptFunction func(this, mod, asFUNC_DUMMY);
- int r = bld.ParseFunctionDeclaration(0, decl, &func, false, 0, 0, defaultNamespace);
- if( r < 0 )
- return asINVALID_DECLARATION;
- // Search for matching factory function
- int id = -1;
- for( asUINT n = 0; n < ot->beh.factories.GetLength(); n++ )
- {
- asCScriptFunction *f = scriptFunctions[ot->beh.factories[n]];
- if( f->IsSignatureEqual(&func) )
- {
- id = ot->beh.factories[n];
- break;
- }
- }
- if( id == -1 ) return asNO_FUNCTION;
- return id;
- }
- // internal
- int asCScriptEngine::GetMethodIdByDecl(const asCObjectType *ot, const char *decl, asCModule *mod)
- {
- asCBuilder bld(this, mod);
- // Don't write parser errors to the message callback
- bld.silent = true;
- asCScriptFunction func(this, mod, asFUNC_DUMMY);
- // Set the object type so that the signature can be properly compared
- // This cast is OK, it will only be used for comparison
- func.objectType = const_cast<asCObjectType*>(ot);
- func.objectType->AddRefInternal();
- int r = bld.ParseFunctionDeclaration(func.objectType, decl, &func, false);
- if( r < 0 )
- return asINVALID_DECLARATION;
- // Search script functions for matching interface
- int id = -1;
- for( asUINT n = 0; n < ot->methods.GetLength(); ++n )
- {
- if( func.IsSignatureEqual(scriptFunctions[ot->methods[n]]) )
- {
- if( id == -1 )
- id = ot->methods[n];
- else
- return asMULTIPLE_FUNCTIONS;
- }
- }
- if( id == -1 ) return asNO_FUNCTION;
- return id;
- }
- // internal
- asCString asCScriptEngine::GetFunctionDeclaration(int funcId)
- {
- asCString str;
- asCScriptFunction *func = GetScriptFunction(funcId);
- if( func )
- str = func->GetDeclarationStr();
- return str;
- }
- // internal
- asCScriptFunction *asCScriptEngine::GetScriptFunction(int funcId) const
- {
- if( funcId < 0 || funcId >= (int)scriptFunctions.GetLength() )
- return 0;
- return scriptFunctions[funcId];
- }
- // interface
- asIScriptContext *asCScriptEngine::CreateContext()
- {
- asIScriptContext *ctx = 0;
- CreateContext(&ctx, false);
- return ctx;
- }
- // internal
- int asCScriptEngine::CreateContext(asIScriptContext **context, bool isInternal)
- {
- *context = asNEW(asCContext)(this, !isInternal);
- if( *context == 0 )
- return asOUT_OF_MEMORY;
- // We need to make sure the engine has been
- // prepared before any context is executed
- PrepareEngine();
- return 0;
- }
- // interface
- int asCScriptEngine::RegisterObjectProperty(const char *obj, const char *declaration, int byteOffset, int compositeOffset, bool isCompositeIndirect)
- {
- int r;
- asCDataType dt;
- asCBuilder bld(this, 0);
- r = bld.ParseDataType(obj, &dt, defaultNamespace);
- if( r < 0 )
- return ConfigError(r, "RegisterObjectProperty", obj, declaration);
- if (dt.GetTypeInfo() == 0 || (dt.IsObjectHandle() && !(dt.GetTypeInfo()->GetFlags() & asOBJ_IMPLICIT_HANDLE)))
- return ConfigError(asINVALID_OBJECT, "RegisterObjectProperty", obj, declaration);
- // Don't allow modifying generated template instances
- if( dt.GetTypeInfo() && (dt.GetTypeInfo()->flags & asOBJ_TEMPLATE) && generatedTemplateTypes.Exists(CastToObjectType(dt.GetTypeInfo())) )
- return ConfigError(asINVALID_TYPE, "RegisterObjectProperty", obj, declaration);
- // Verify that the correct config group is used
- if( currentGroup->FindType(dt.GetTypeInfo()->name.AddressOf()) == 0 )
- return ConfigError(asWRONG_CONFIG_GROUP, "RegisterObjectProperty", obj, declaration);
- asCDataType type;
- asCString name;
- if( (r = bld.VerifyProperty(&dt, declaration, name, type, 0)) < 0 )
- return ConfigError(r, "RegisterObjectProperty", obj, declaration);
- // The VM currently only supports 16bit offsets
- // TODO: The VM needs to have support for 32bit offsets. Probably with a second ADDSi instruction
- // However, when implementing this it is necessary for the bytecode serialization to support
- // the switch between the instructions upon loading bytecode as the offset may not be the
- // same on all platforms
- if( byteOffset > 32767 || byteOffset < -32768 )
- return ConfigError(asINVALID_ARG, "RegisterObjectProperty", obj, declaration);
- // The composite offset must also obey the ADDSi restriction
- if (compositeOffset > 32767 || compositeOffset < -32768)
- return ConfigError(asINVALID_ARG, "RegisterObjectProperty", obj, declaration);
- asCObjectProperty *prop = asNEW(asCObjectProperty);
- if( prop == 0 )
- return ConfigError(asOUT_OF_MEMORY, "RegisterObjectProperty", obj, declaration);
- prop->name = name;
- prop->type = type;
- prop->byteOffset = byteOffset;
- prop->isPrivate = false;
- prop->isProtected = false;
- prop->compositeOffset = compositeOffset;
- prop->isCompositeIndirect = isCompositeIndirect;
- prop->accessMask = defaultAccessMask;
- CastToObjectType(dt.GetTypeInfo())->properties.PushLast(prop);
- // Add references to types so they are not released too early
- if( type.GetTypeInfo() )
- {
- type.GetTypeInfo()->AddRefInternal();
- // Add template instances to the config group
- if( (type.GetTypeInfo()->flags & asOBJ_TEMPLATE) && !currentGroup->types.Exists(type.GetTypeInfo()) )
- currentGroup->types.PushLast(type.GetTypeInfo());
- }
- currentGroup->AddReferencesForType(this, type.GetTypeInfo());
- return asSUCCESS;
- }
- // interface
- int asCScriptEngine::RegisterInterface(const char *name)
- {
- if( name == 0 ) return ConfigError(asINVALID_NAME, "RegisterInterface", 0, 0);
- // Verify if the name has been registered as a type already
- if( GetRegisteredType(name, defaultNamespace) )
- return asALREADY_REGISTERED;
- // Use builder to parse the datatype
- asCDataType dt;
- asCBuilder bld(this, 0);
- bool oldMsgCallback = msgCallback; msgCallback = false;
- int r = bld.ParseDataType(name, &dt, defaultNamespace);
- msgCallback = oldMsgCallback;
- if( r >= 0 )
- {
- // If it is not in the defaultNamespace then the type was successfully parsed because
- // it is declared in a parent namespace which shouldn't be treated as an error
- if( dt.GetTypeInfo() && dt.GetTypeInfo()->nameSpace == defaultNamespace )
- return ConfigError(asERROR, "RegisterInterface", name, 0);
- }
- // Make sure the name is not a reserved keyword
- size_t tokenLen;
- int token = tok.GetToken(name, strlen(name), &tokenLen);
- if( token != ttIdentifier || strlen(name) != tokenLen )
- return ConfigError(asINVALID_NAME, "RegisterInterface", name, 0);
- r = bld.CheckNameConflict(name, 0, 0, defaultNamespace, true);
- if( r < 0 )
- return ConfigError(asNAME_TAKEN, "RegisterInterface", name, 0);
- // Don't have to check against members of object
- // types as they are allowed to use the names
- // Register the object type for the interface
- asCObjectType *st = asNEW(asCObjectType)(this);
- if( st == 0 )
- return ConfigError(asOUT_OF_MEMORY, "RegisterInterface", name, 0);
- st->flags = asOBJ_REF | asOBJ_SCRIPT_OBJECT | asOBJ_SHARED;
- st->size = 0; // Cannot be instantiated
- st->name = name;
- st->nameSpace = defaultNamespace;
- // Use the default script class behaviours
- st->beh.factory = 0;
- st->beh.addref = scriptTypeBehaviours.beh.addref;
- scriptFunctions[st->beh.addref]->AddRefInternal();
- st->beh.release = scriptTypeBehaviours.beh.release;
- scriptFunctions[st->beh.release]->AddRefInternal();
- st->beh.copy = 0;
- allRegisteredTypes.Insert(asSNameSpaceNamePair(st->nameSpace, st->name), st);
- registeredObjTypes.PushLast(st);
- currentGroup->types.PushLast(st);
- return GetTypeIdByDecl(name);
- }
- // interface
- int asCScriptEngine::RegisterInterfaceMethod(const char *intf, const char *declaration)
- {
- // Verify that the correct config group is set.
- if( currentGroup->FindType(intf) == 0 )
- return ConfigError(asWRONG_CONFIG_GROUP, "RegisterInterfaceMethod", intf, declaration);
- asCDataType dt;
- asCBuilder bld(this, 0);
- int r = bld.ParseDataType(intf, &dt, defaultNamespace);
- if( r < 0 )
- return ConfigError(r, "RegisterInterfaceMethod", intf, declaration);
- asCScriptFunction *func = asNEW(asCScriptFunction)(this, 0, asFUNC_INTERFACE);
- if( func == 0 )
- return ConfigError(asOUT_OF_MEMORY, "RegisterInterfaceMethod", intf, declaration);
- func->objectType = CastToObjectType(dt.GetTypeInfo());
- func->objectType->AddRefInternal();
- r = bld.ParseFunctionDeclaration(func->objectType, declaration, func, false);
- if( r < 0 )
- {
- func->funcType = asFUNC_DUMMY;
- asDELETE(func,asCScriptFunction);
- return ConfigError(asINVALID_DECLARATION, "RegisterInterfaceMethod", intf, declaration);
- }
- // Check name conflicts
- r = bld.CheckNameConflictMember(dt.GetTypeInfo(), func->name.AddressOf(), 0, 0, false);
- if( r < 0 )
- {
- func->funcType = asFUNC_DUMMY;
- asDELETE(func,asCScriptFunction);
- return ConfigError(asNAME_TAKEN, "RegisterInterfaceMethod", intf, declaration);
- }
- func->id = GetNextScriptFunctionId();
- AddScriptFunction(func);
- // The index into the interface's vftable chunk should be
- // its index in the methods array.
- func->vfTableIdx = int(func->objectType->methods.GetLength());
- func->objectType->methods.PushLast(func->id);
- func->ComputeSignatureId();
- currentGroup->AddReferencesForFunc(this, func);
- // Return function id as success
- return func->id;
- }
- int asCScriptEngine::RegisterObjectType(const char *name, int byteSize, asDWORD flags)
- {
- int r;
- isPrepared = false;
- // Verify flags
- // Must have either asOBJ_REF or asOBJ_VALUE
- if( flags & asOBJ_REF )
- {
- // Can optionally have the asOBJ_GC, asOBJ_NOHANDLE, asOBJ_SCOPED, or asOBJ_TEMPLATE flag set, but nothing else
- if( flags & ~(asOBJ_REF | asOBJ_GC | asOBJ_NOHANDLE | asOBJ_SCOPED | asOBJ_TEMPLATE | asOBJ_NOCOUNT | asOBJ_IMPLICIT_HANDLE) )
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- // flags are exclusive
- if( (flags & asOBJ_GC) && (flags & (asOBJ_NOHANDLE|asOBJ_SCOPED|asOBJ_NOCOUNT)) )
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- if( (flags & asOBJ_NOHANDLE) && (flags & (asOBJ_GC|asOBJ_SCOPED|asOBJ_NOCOUNT|asOBJ_IMPLICIT_HANDLE)) )
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- if( (flags & asOBJ_SCOPED) && (flags & (asOBJ_GC|asOBJ_NOHANDLE|asOBJ_NOCOUNT|asOBJ_IMPLICIT_HANDLE)) )
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- if( (flags & asOBJ_NOCOUNT) && (flags & (asOBJ_GC|asOBJ_NOHANDLE|asOBJ_SCOPED)) )
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- // Implicit handle is only allowed if the engine property for this is turned on
- if( !ep.allowImplicitHandleTypes && (flags & asOBJ_IMPLICIT_HANDLE) )
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- }
- else if( flags & asOBJ_VALUE )
- {
- // Cannot use reference flags
- if( flags & (asOBJ_REF | asOBJ_NOHANDLE | asOBJ_SCOPED | asOBJ_NOCOUNT | asOBJ_IMPLICIT_HANDLE) )
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- // Flags are exclusive
- if( (flags & asOBJ_POD) && (flags & (asOBJ_ASHANDLE | asOBJ_TEMPLATE)) )
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- // If the app type is given, we must validate the flags
- if( flags & asOBJ_APP_CLASS )
- {
- // Must not set the primitive or float flag
- if( flags & (asOBJ_APP_PRIMITIVE | asOBJ_APP_FLOAT | asOBJ_APP_ARRAY) )
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- }
- else
- {
- // Must not set the class properties, without the class flag
- if( flags & (asOBJ_APP_CLASS_CONSTRUCTOR |
- asOBJ_APP_CLASS_DESTRUCTOR |
- asOBJ_APP_CLASS_ASSIGNMENT |
- asOBJ_APP_CLASS_COPY_CONSTRUCTOR |
- asOBJ_APP_CLASS_ALLINTS |
- asOBJ_APP_CLASS_ALLFLOATS) )
- {
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- }
- }
- if( flags & asOBJ_APP_PRIMITIVE )
- {
- if( flags & (asOBJ_APP_CLASS |
- asOBJ_APP_FLOAT |
- asOBJ_APP_ARRAY) )
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- }
- else if( flags & asOBJ_APP_FLOAT )
- {
- if( flags & (asOBJ_APP_CLASS |
- asOBJ_APP_PRIMITIVE |
- asOBJ_APP_ARRAY) )
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- }
- else if( flags & asOBJ_APP_ARRAY )
- {
- if( flags & (asOBJ_APP_CLASS |
- asOBJ_APP_PRIMITIVE |
- asOBJ_APP_FLOAT) )
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- }
- }
- else
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- // Don't allow anything else than the defined flags
- #ifndef WIP_16BYTE_ALIGN
- if( flags - (flags & asOBJ_MASK_VALID_FLAGS) )
- #else
- if( flags - (flags & (asOBJ_MASK_VALID_FLAGS | asOBJ_APP_ALIGN16)) )
- #endif
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- // Value types must have a defined size
- if( (flags & asOBJ_VALUE) && byteSize == 0 )
- {
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_VALUE_TYPE_MUST_HAVE_SIZE);
- return ConfigError(asINVALID_ARG, "RegisterObjectType", name, 0);
- }
- // Verify type name
- if( name == 0 )
- return ConfigError(asINVALID_NAME, "RegisterObjectType", name, 0);
- asCString typeName;
- asCBuilder bld(this, 0);
- if( flags & asOBJ_TEMPLATE )
- {
- asCArray<asCString> subtypeNames;
- r = bld.ParseTemplateDecl(name, &typeName, subtypeNames);
- if( r < 0 )
- return ConfigError(r, "RegisterObjectType", name, 0);
- // Verify that the template name hasn't been registered as a type already
- if( GetRegisteredType(typeName, defaultNamespace) )
- // This is not an irrepairable error, as it may just be that the same type is registered twice
- return asALREADY_REGISTERED;
- asCObjectType *type = asNEW(asCObjectType)(this);
- if( type == 0 )
- return ConfigError(asOUT_OF_MEMORY, "RegisterObjectType", name, 0);
- type->name = typeName;
- type->nameSpace = defaultNamespace;
- type->size = byteSize;
- #ifdef WIP_16BYTE_ALIGN
- // TODO: Types smaller than 4 don't need to be aligned to 4 byte boundaries
- type->alignment = (flags & asOBJ_APP_ALIGN16) ? 16 : 4;
- #endif
- type->flags = flags;
- type->accessMask = defaultAccessMask;
- // Store it in the object types
- allRegisteredTypes.Insert(asSNameSpaceNamePair(type->nameSpace, type->name), type);
- currentGroup->types.PushLast(type);
- registeredObjTypes.PushLast(type);
- registeredTemplateTypes.PushLast(type);
- // Define the template subtypes
- for( asUINT subTypeIdx = 0; subTypeIdx < subtypeNames.GetLength(); subTypeIdx++ )
- {
- asCTypeInfo *subtype = 0;
- for( asUINT n = 0; n < templateSubTypes.GetLength(); n++ )
- {
- if( templateSubTypes[n]->name == subtypeNames[subTypeIdx] )
- {
- subtype = templateSubTypes[n];
- break;
- }
- }
- if( subtype == 0 )
- {
- // Create the new subtype if not already existing
- subtype = asNEW(asCTypeInfo)(this);
- if( subtype == 0 )
- return ConfigError(asOUT_OF_MEMORY, "RegisterObjectType", name, 0);
- subtype->name = subtypeNames[subTypeIdx];
- subtype->size = 0;
- subtype->flags = asOBJ_TEMPLATE_SUBTYPE;
- templateSubTypes.PushLast(subtype);
- }
- type->templateSubTypes.PushLast(asCDataType::CreateType(subtype, false));
- subtype->AddRefInternal();
- }
- }
- else
- {
- typeName = name;
- // Verify if the name has been registered as a type already
- if( GetRegisteredType(typeName, defaultNamespace) )
- // This is not an irrepairable error, as it may just be that the same type is registered twice
- return asALREADY_REGISTERED;
- // Keep the most recent template generated instance type, so we know what it was before parsing the datatype
- asCObjectType *mostRecentTemplateInstanceType = 0;
- asUINT originalSizeOfGeneratedTemplateTypes = (asUINT)generatedTemplateTypes.GetLength();
- if( originalSizeOfGeneratedTemplateTypes )
- mostRecentTemplateInstanceType = generatedTemplateTypes[originalSizeOfGeneratedTemplateTypes-1];
- // Use builder to parse the datatype
- asCDataType dt;
- bool oldMsgCallback = msgCallback; msgCallback = false;
- r = bld.ParseDataType(name, &dt, defaultNamespace);
- msgCallback = oldMsgCallback;
- // If the builder fails or the namespace is different than the default
- // namespace, then the type name is new and it should be registered
- if( r < 0 || dt.GetTypeInfo()->nameSpace != defaultNamespace )
- {
- // Make sure the name is not a reserved keyword
- size_t tokenLen;
- int token = tok.GetToken(name, typeName.GetLength(), &tokenLen);
- if( token != ttIdentifier || typeName.GetLength() != tokenLen )
- return ConfigError(asINVALID_NAME, "RegisterObjectType", name, 0);
- r = bld.CheckNameConflict(name, 0, 0, defaultNamespace, true);
- if( r < 0 )
- return ConfigError(asNAME_TAKEN, "RegisterObjectType", name, 0);
- // Don't have to check against members of object
- // types as they are allowed to use the names
- // Put the data type in the list
- asCObjectType *type = asNEW(asCObjectType)(this);
- if( type == 0 )
- return ConfigError(asOUT_OF_MEMORY, "RegisterObjectType", name, 0);
- type->name = typeName;
- type->nameSpace = defaultNamespace;
- type->size = byteSize;
- #ifdef WIP_16BYTE_ALIGN
- // TODO: Types smaller than 4 don't need to be aligned to 4 byte boundaries
- type->alignment = (flags & asOBJ_APP_ALIGN16) ? 16 : 4;
- #endif
- type->flags = flags;
- type->accessMask = defaultAccessMask;
- allRegisteredTypes.Insert(asSNameSpaceNamePair(type->nameSpace, type->name), type);
- registeredObjTypes.PushLast(type);
- currentGroup->types.PushLast(type);
- }
- else
- {
- // The application is registering a template specialization so we
- // need to replace the template instance type with the new type.
- // TODO: Template: We don't require the lower dimensions to be registered first for registered template types
- // int[][] must not be allowed to be registered
- // if int[] hasn't been registered first
- if( dt.GetSubType().IsTemplate() )
- return ConfigError(asLOWER_ARRAY_DIMENSION_NOT_REGISTERED, "RegisterObjectType", name, 0);
- if( dt.IsReadOnly() ||
- dt.IsReference() )
- return ConfigError(asINVALID_TYPE, "RegisterObjectType", name, 0);
- // Was the template instance type generated before?
- if( generatedTemplateTypes.Exists(CastToObjectType(dt.GetTypeInfo())) &&
- generatedTemplateTypes[generatedTemplateTypes.GetLength()-1] == mostRecentTemplateInstanceType )
- {
- asCString str;
- str.Format(TXT_TEMPLATE_s_ALREADY_GENERATED_CANT_REGISTER, typeName.AddressOf());
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, str.AddressOf());
- return ConfigError(asNOT_SUPPORTED, "RegisterObjectType", name, 0);
- }
- // If this is not a generated template instance type, then it means it is an
- // already registered template specialization
- if( !generatedTemplateTypes.Exists(CastToObjectType(dt.GetTypeInfo())) )
- return ConfigError(asALREADY_REGISTERED, "RegisterObjectType", name, 0);
- // TODO: Add this again. The type is used by the factory stubs so we need to discount that
- // Is the template instance type already being used?
- // if( dt.GetTypeInfo()->GetRefCount() > 1 )
- // return ConfigError(asNOT_SUPPORTED, "RegisterObjectType", name, 0);
- // Put the data type in the list
- asCObjectType *type = asNEW(asCObjectType)(this);
- if( type == 0 )
- return ConfigError(asOUT_OF_MEMORY, "RegisterObjectType", name, 0);
- type->name = dt.GetTypeInfo()->name;
- // The namespace will be the same as the original template type
- type->nameSpace = dt.GetTypeInfo()->nameSpace;
- type->templateSubTypes.PushLast(dt.GetSubType());
- for( asUINT s = 0; s < type->templateSubTypes.GetLength(); s++ )
- if( type->templateSubTypes[s].GetTypeInfo() )
- type->templateSubTypes[s].GetTypeInfo()->AddRefInternal();
- type->size = byteSize;
- #ifdef WIP_16BYTE_ALIGN
- // TODO: Types smaller than 4 don't need to be aligned to 4 byte boundaries
- type->alignment = (flags & asOBJ_APP_ALIGN16) ? 16 : 4;
- #endif
- type->flags = flags;
- type->accessMask = defaultAccessMask;
- templateInstanceTypes.PushLast(type);
- currentGroup->types.PushLast(type);
- // Remove the template instance type, which will no longer be used.
- // It is possible that multiple template instances are generated if
- // they have any relationship, so all of them must be removed
- while( generatedTemplateTypes.GetLength() > originalSizeOfGeneratedTemplateTypes )
- RemoveTemplateInstanceType(generatedTemplateTypes[generatedTemplateTypes.GetLength()-1]);
- }
- }
- // Return the type id as the success (except for template types)
- if( flags & asOBJ_TEMPLATE )
- return asSUCCESS;
- return GetTypeIdByDecl(name);
- }
- // interface
- int asCScriptEngine::RegisterObjectBehaviour(const char *datatype, asEBehaviours behaviour, const char *decl, const asSFuncPtr &funcPointer, asDWORD callConv, void *auxiliary, int compositeOffset, bool isCompositeIndirect)
- {
- if( datatype == 0 ) return ConfigError(asINVALID_ARG, "RegisterObjectBehaviour", datatype, decl);
- // Determine the object type
- asCBuilder bld(this, 0);
- asCDataType type;
- int r = bld.ParseDataType(datatype, &type, defaultNamespace);
- if( r < 0 )
- return ConfigError(r, "RegisterObjectBehaviour", datatype, decl);
- if( type.GetTypeInfo() == 0 || (type.IsObjectHandle() && !(type.GetTypeInfo()->GetFlags() & asOBJ_IMPLICIT_HANDLE)) )
- return ConfigError(asINVALID_TYPE, "RegisterObjectBehaviour", datatype, decl);
- // Don't allow application to modify built-in types
- if( type.GetTypeInfo() == &functionBehaviours ||
- type.GetTypeInfo() == &scriptTypeBehaviours )
- return ConfigError(asINVALID_TYPE, "RegisterObjectBehaviour", datatype, decl);
- if( type.IsReadOnly() || type.IsReference() )
- return ConfigError(asINVALID_TYPE, "RegisterObjectBehaviour", datatype, decl);
- // Don't allow modifying generated template instances
- if( type.GetTypeInfo() && (type.GetTypeInfo()->flags & asOBJ_TEMPLATE) && generatedTemplateTypes.Exists(CastToObjectType(type.GetTypeInfo())) )
- return ConfigError(asINVALID_TYPE, "RegisterObjectBehaviour", datatype, decl);
- return RegisterBehaviourToObjectType(CastToObjectType(type.GetTypeInfo()), behaviour, decl, funcPointer, callConv, auxiliary, compositeOffset, isCompositeIndirect);
- }
- // internal
- int asCScriptEngine::RegisterBehaviourToObjectType(asCObjectType *objectType, asEBehaviours behaviour, const char *decl, const asSFuncPtr &funcPointer, asDWORD callConv, void *auxiliary, int compositeOffset, bool isCompositeIndirect)
- {
- #ifdef AS_MAX_PORTABILITY
- if( callConv != asCALL_GENERIC )
- return ConfigError(asNOT_SUPPORTED, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- #endif
- asSSystemFunctionInterface internal;
- bool isMethod = !(behaviour == asBEHAVE_FACTORY ||
- behaviour == asBEHAVE_LIST_FACTORY ||
- behaviour == asBEHAVE_TEMPLATE_CALLBACK);
- int r = DetectCallingConvention(isMethod, funcPointer, callConv, auxiliary, &internal);
- if( r < 0 )
- return ConfigError(r, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- internal.compositeOffset = compositeOffset;
- internal.isCompositeIndirect = isCompositeIndirect;
- if( (compositeOffset || isCompositeIndirect) && callConv != asCALL_THISCALL )
- return ConfigError(asINVALID_ARG, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- // TODO: cleanup: This is identical to what is in RegisterMethodToObjectType
- // If the object type is a template, make sure there are no generated instances already
- if( objectType->flags & asOBJ_TEMPLATE )
- {
- for( asUINT n = 0; n < generatedTemplateTypes.GetLength(); n++ )
- {
- asCObjectType *tmpl = generatedTemplateTypes[n];
- if( tmpl->name == objectType->name &&
- tmpl->nameSpace == objectType->nameSpace &&
- !(tmpl->templateSubTypes[0].GetTypeInfo() && (tmpl->templateSubTypes[0].GetTypeInfo()->flags & asOBJ_TEMPLATE_SUBTYPE)) )
- {
- asCString msg;
- msg.Format(TXT_TEMPLATE_s_ALREADY_GENERATED_CANT_REGISTER, asCDataType::CreateType(tmpl, false).Format(tmpl->nameSpace).AddressOf());
- WriteMessage("",0,0, asMSGTYPE_ERROR, msg.AddressOf());
- return ConfigError(asERROR, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- }
- }
- isPrepared = false;
- asSTypeBehaviour *beh = &objectType->beh;
- // Verify function declaration
- asCScriptFunction func(this, 0, asFUNC_DUMMY);
- bool expectListPattern = behaviour == asBEHAVE_LIST_FACTORY || behaviour == asBEHAVE_LIST_CONSTRUCT;
- asCScriptNode *listPattern = 0;
- asCBuilder bld(this, 0);
- r = bld.ParseFunctionDeclaration(objectType, decl, &func, true, &internal.paramAutoHandles, &internal.returnAutoHandle, 0, expectListPattern ? &listPattern : 0);
- if( r < 0 )
- {
- if( listPattern )
- listPattern->Destroy(this);
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- func.name.Format("$beh%d", behaviour);
- if( behaviour != asBEHAVE_FACTORY && behaviour != asBEHAVE_LIST_FACTORY )
- {
- func.objectType = objectType;
- func.objectType->AddRefInternal();
- }
- // Check if the method restricts that use of the template to value types or reference types
- if( objectType->flags & asOBJ_TEMPLATE )
- {
- r = SetTemplateRestrictions(objectType, &func, "RegisterObjectBehaviour", decl);
- if (r < 0)
- return r;
- }
- if( behaviour == asBEHAVE_CONSTRUCT )
- {
- // Verify that the return type is void
- if( func.returnType != asCDataType::CreatePrimitive(ttVoid, false) )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- if( objectType->flags & asOBJ_SCRIPT_OBJECT )
- {
- // The script object is a special case
- asASSERT(func.parameterTypes.GetLength() == 1);
- beh->construct = AddBehaviourFunction(func, internal);
- beh->factory = beh->construct;
- scriptFunctions[beh->factory]->AddRefInternal();
- beh->constructors.PushLast(beh->construct);
- beh->factories.PushLast(beh->factory);
- func.id = beh->construct;
- }
- else
- {
- // Verify that it is a value type
- if( !(func.objectType->flags & asOBJ_VALUE) )
- {
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_ILLEGAL_BEHAVIOUR_FOR_TYPE);
- return ConfigError(asILLEGAL_BEHAVIOUR_FOR_TYPE, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- // The templates take a hidden parameter with the object type
- if( (objectType->flags & asOBJ_TEMPLATE) &&
- (func.parameterTypes.GetLength() == 0 ||
- !func.parameterTypes[0].IsReference()) )
- {
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_FIRST_PARAM_MUST_BE_REF_FOR_TEMPLATE_FACTORY);
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- // TODO: Verify that the same constructor hasn't been registered already
- // Store all constructors in a list
- func.id = AddBehaviourFunction(func, internal);
- beh->constructors.PushLast(func.id);
- if( func.parameterTypes.GetLength() == 0 ||
- (func.parameterTypes.GetLength() == 1 && (objectType->flags & asOBJ_TEMPLATE)) )
- {
- beh->construct = func.id;
- }
- else if( func.parameterTypes.GetLength() == 1 )
- {
- // Is this the copy constructor?
- asCDataType paramType = func.parameterTypes[0];
- // If the parameter is object, and const reference for input or inout,
- // and same type as this class, then this is a copy constructor.
- if( paramType.IsObject() && paramType.IsReference() && paramType.IsReadOnly() &&
- (func.inOutFlags[0] & asTM_INREF) && paramType.GetTypeInfo() == objectType )
- beh->copyconstruct = func.id;
- }
- }
- }
- else if( behaviour == asBEHAVE_DESTRUCT )
- {
- // Must be a value type
- if( !(func.objectType->flags & asOBJ_VALUE) )
- {
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_ILLEGAL_BEHAVIOUR_FOR_TYPE);
- return ConfigError(asILLEGAL_BEHAVIOUR_FOR_TYPE, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- if( beh->destruct )
- return ConfigError(asALREADY_REGISTERED, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- // Verify that the return type is void
- if( func.returnType != asCDataType::CreatePrimitive(ttVoid, false) )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- // Verify that there are no parameters
- if( func.parameterTypes.GetLength() > 0 )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- func.id = beh->destruct = AddBehaviourFunction(func, internal);
- }
- else if( behaviour == asBEHAVE_LIST_CONSTRUCT )
- {
- // Verify that the return type is void
- if( func.returnType != asCDataType::CreatePrimitive(ttVoid, false) )
- {
- if( listPattern )
- listPattern->Destroy(this);
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- // Verify that it is a value type
- if( !(func.objectType->flags & asOBJ_VALUE) )
- {
- if( listPattern )
- listPattern->Destroy(this);
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_ILLEGAL_BEHAVIOUR_FOR_TYPE);
- return ConfigError(asILLEGAL_BEHAVIOUR_FOR_TYPE, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- // Verify the parameters
- if( func.parameterTypes.GetLength() != 1 || !func.parameterTypes[0].IsReference() )
- {
- if( listPattern )
- listPattern->Destroy(this);
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_LIST_FACTORY_EXPECTS_1_REF_PARAM);
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- // Don't accept duplicates
- if( beh->listFactory )
- {
- if( listPattern )
- listPattern->Destroy(this);
- return ConfigError(asALREADY_REGISTERED, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- // Add the function
- func.id = AddBehaviourFunction(func, internal);
- // Re-use the listFactory member, as it is not possible to have both anyway
- beh->listFactory = func.id;
- // Store the list pattern for this function
- r = scriptFunctions[func.id]->RegisterListPattern(decl, listPattern);
- if( listPattern )
- listPattern->Destroy(this);
- if( r < 0 )
- return ConfigError(r, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- else if( behaviour == asBEHAVE_FACTORY || behaviour == asBEHAVE_LIST_FACTORY )
- {
- // Must be a ref type and must not have asOBJ_NOHANDLE
- if( !(objectType->flags & asOBJ_REF) || (objectType->flags & asOBJ_NOHANDLE) )
- {
- if( listPattern )
- listPattern->Destroy(this);
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_ILLEGAL_BEHAVIOUR_FOR_TYPE);
- return ConfigError(asILLEGAL_BEHAVIOUR_FOR_TYPE, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- // Verify that the return type is a handle to the type
- if( func.returnType != asCDataType::CreateObjectHandle(objectType, false) )
- {
- if( listPattern )
- listPattern->Destroy(this);
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- // The templates take a hidden parameter with the object type
- if( (objectType->flags & asOBJ_TEMPLATE) &&
- (func.parameterTypes.GetLength() == 0 ||
- !func.parameterTypes[0].IsReference()) )
- {
- if( listPattern )
- listPattern->Destroy(this);
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_FIRST_PARAM_MUST_BE_REF_FOR_TEMPLATE_FACTORY);
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- if( behaviour == asBEHAVE_LIST_FACTORY )
- {
- // Make sure the factory takes a reference as its last parameter
- if( objectType->flags & asOBJ_TEMPLATE )
- {
- if( func.parameterTypes.GetLength() != 2 || !func.parameterTypes[1].IsReference() )
- {
- if( listPattern )
- listPattern->Destroy(this);
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_TEMPLATE_LIST_FACTORY_EXPECTS_2_REF_PARAMS);
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- }
- else
- {
- if( func.parameterTypes.GetLength() != 1 || !func.parameterTypes[0].IsReference() )
- {
- if( listPattern )
- listPattern->Destroy(this);
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_LIST_FACTORY_EXPECTS_1_REF_PARAM);
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- }
- }
- // TODO: Verify that the same factory function hasn't been registered already
- // Don't accept duplicates
- if( behaviour == asBEHAVE_LIST_FACTORY && beh->listFactory )
- {
- if( listPattern )
- listPattern->Destroy(this);
- return ConfigError(asALREADY_REGISTERED, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- // Store all factory functions in a list
- func.id = AddBehaviourFunction(func, internal);
- // The list factory is a special factory and isn't stored together with the rest
- if( behaviour != asBEHAVE_LIST_FACTORY )
- beh->factories.PushLast(func.id);
- if( (func.parameterTypes.GetLength() == 0) ||
- (func.parameterTypes.GetLength() == 1 && (objectType->flags & asOBJ_TEMPLATE)) )
- {
- beh->factory = func.id;
- }
- else if( (func.parameterTypes.GetLength() == 1) ||
- (func.parameterTypes.GetLength() == 2 && (objectType->flags & asOBJ_TEMPLATE)) )
- {
- if( behaviour == asBEHAVE_LIST_FACTORY )
- {
- beh->listFactory = func.id;
- // Store the list pattern for this function
- r = scriptFunctions[func.id]->RegisterListPattern(decl, listPattern);
- if( listPattern )
- listPattern->Destroy(this);
- if( r < 0 )
- return ConfigError(r, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- else
- {
- // Is this the copy factory?
- asCDataType paramType = func.parameterTypes[func.parameterTypes.GetLength()-1];
- // If the parameter is object, and const reference for input,
- // and same type as this class, then this is a copy constructor.
- if( paramType.IsObject() && paramType.IsReference() && paramType.IsReadOnly() && func.inOutFlags[func.parameterTypes.GetLength()-1] == asTM_INREF && paramType.GetTypeInfo() == objectType )
- beh->copyfactory = func.id;
- }
- }
- }
- else if( behaviour == asBEHAVE_ADDREF )
- {
- // Must be a ref type and must not have asOBJ_NOHANDLE, nor asOBJ_SCOPED
- if( !(func.objectType->flags & asOBJ_REF) ||
- (func.objectType->flags & asOBJ_NOHANDLE) ||
- (func.objectType->flags & asOBJ_SCOPED) ||
- (func.objectType->flags & asOBJ_NOCOUNT) )
- {
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_ILLEGAL_BEHAVIOUR_FOR_TYPE);
- return ConfigError(asILLEGAL_BEHAVIOUR_FOR_TYPE, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- if( beh->addref )
- return ConfigError(asALREADY_REGISTERED, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- // Verify that the return type is void
- if( func.returnType != asCDataType::CreatePrimitive(ttVoid, false) )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- // Verify that there are no parameters
- if( func.parameterTypes.GetLength() > 0 )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- func.id = beh->addref = AddBehaviourFunction(func, internal);
- }
- else if( behaviour == asBEHAVE_RELEASE )
- {
- // Must be a ref type and must not have asOBJ_NOHANDLE
- if( !(func.objectType->flags & asOBJ_REF) ||
- (func.objectType->flags & asOBJ_NOHANDLE) ||
- (func.objectType->flags & asOBJ_NOCOUNT) )
- {
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_ILLEGAL_BEHAVIOUR_FOR_TYPE);
- return ConfigError(asILLEGAL_BEHAVIOUR_FOR_TYPE, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- if( beh->release )
- return ConfigError(asALREADY_REGISTERED, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- // Verify that the return type is void
- if( func.returnType != asCDataType::CreatePrimitive(ttVoid, false) )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- // Verify that there are no parameters
- if( func.parameterTypes.GetLength() > 0 )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- func.id = beh->release = AddBehaviourFunction(func, internal);
- }
- else if( behaviour == asBEHAVE_TEMPLATE_CALLBACK )
- {
- // Must be a template type
- if( !(func.objectType->flags & asOBJ_TEMPLATE) )
- {
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_ILLEGAL_BEHAVIOUR_FOR_TYPE);
- return ConfigError(asILLEGAL_BEHAVIOUR_FOR_TYPE, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- if( beh->templateCallback )
- return ConfigError(asALREADY_REGISTERED, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- // Verify that the return type is bool
- if( func.returnType != asCDataType::CreatePrimitive(ttBool, false) )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- // Verify that there are two parameters
- if( func.parameterTypes.GetLength() != 2 )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- // The first parameter must be an inref (to receive the object type), and
- // the second must be a bool out ref (to return if the type should or shouldn't be garbage collected)
- if( func.inOutFlags[0] != asTM_INREF || func.inOutFlags[1] != asTM_OUTREF || !func.parameterTypes[1].IsEqualExceptRef(asCDataType::CreatePrimitive(ttBool, false)) )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- func.id = beh->templateCallback = AddBehaviourFunction(func, internal);
- }
- else if( behaviour >= asBEHAVE_FIRST_GC &&
- behaviour <= asBEHAVE_LAST_GC )
- {
- // Only allow GC behaviours for types registered to be garbage collected
- if( !(func.objectType->flags & asOBJ_GC) )
- {
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_ILLEGAL_BEHAVIOUR_FOR_TYPE);
- return ConfigError(asILLEGAL_BEHAVIOUR_FOR_TYPE, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- // Verify parameter count
- if( (behaviour == asBEHAVE_GETREFCOUNT ||
- behaviour == asBEHAVE_SETGCFLAG ||
- behaviour == asBEHAVE_GETGCFLAG) &&
- func.parameterTypes.GetLength() != 0 )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- if( (behaviour == asBEHAVE_ENUMREFS ||
- behaviour == asBEHAVE_RELEASEREFS) &&
- func.parameterTypes.GetLength() != 1 )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- // Verify return type
- if( behaviour == asBEHAVE_GETREFCOUNT &&
- func.returnType != asCDataType::CreatePrimitive(ttInt, false) )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- if( behaviour == asBEHAVE_GETGCFLAG &&
- func.returnType != asCDataType::CreatePrimitive(ttBool, false) )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- if( (behaviour == asBEHAVE_SETGCFLAG ||
- behaviour == asBEHAVE_ENUMREFS ||
- behaviour == asBEHAVE_RELEASEREFS) &&
- func.returnType != asCDataType::CreatePrimitive(ttVoid, false) )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- if( behaviour == asBEHAVE_GETREFCOUNT )
- func.id = beh->gcGetRefCount = AddBehaviourFunction(func, internal);
- else if( behaviour == asBEHAVE_SETGCFLAG )
- func.id = beh->gcSetFlag = AddBehaviourFunction(func, internal);
- else if( behaviour == asBEHAVE_GETGCFLAG )
- func.id = beh->gcGetFlag = AddBehaviourFunction(func, internal);
- else if( behaviour == asBEHAVE_ENUMREFS )
- func.id = beh->gcEnumReferences = AddBehaviourFunction(func, internal);
- else if( behaviour == asBEHAVE_RELEASEREFS )
- func.id = beh->gcReleaseAllReferences = AddBehaviourFunction(func, internal);
- }
- else if ( behaviour == asBEHAVE_GET_WEAKREF_FLAG )
- {
- // This behaviour is only allowed for reference types
- if( !(func.objectType->flags & asOBJ_REF) )
- {
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_ILLEGAL_BEHAVIOUR_FOR_TYPE);
- return ConfigError(asILLEGAL_BEHAVIOUR_FOR_TYPE, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- // Don't allow it if the type is registered with nohandle or scoped
- if( func.objectType->flags & (asOBJ_NOHANDLE|asOBJ_SCOPED) )
- {
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, TXT_ILLEGAL_BEHAVIOUR_FOR_TYPE);
- return ConfigError(asILLEGAL_BEHAVIOUR_FOR_TYPE, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- // Verify that the return type is a reference since it needs to return a pointer to an asISharedBool
- if( !func.returnType.IsReference() )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- // Verify that there are no parameters
- if( func.parameterTypes.GetLength() != 0 )
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- if( beh->getWeakRefFlag )
- return ConfigError(asALREADY_REGISTERED, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- func.id = beh->getWeakRefFlag = AddBehaviourFunction(func, internal);
- }
- else
- {
- asASSERT(false);
- return ConfigError(asINVALID_ARG, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- }
- if( func.id < 0 )
- return ConfigError(func.id, "RegisterObjectBehaviour", objectType->name.AddressOf(), decl);
- // Return function id as success
- return func.id;
- }
- int asCScriptEngine::SetTemplateRestrictions(asCObjectType *templateType, asCScriptFunction *func, const char *caller, const char *decl)
- {
- asASSERT(templateType->flags & asOBJ_TEMPLATE);
- for (asUINT subTypeIdx = 0; subTypeIdx < templateType->templateSubTypes.GetLength(); subTypeIdx++)
- {
- if (func->returnType.GetTypeInfo() == templateType->templateSubTypes[subTypeIdx].GetTypeInfo())
- {
- if (func->returnType.IsObjectHandle())
- templateType->acceptValueSubType = false;
- else if (!func->returnType.IsReference())
- templateType->acceptRefSubType = false;
- // Can't support template subtypes by value, since each type is treated differently in the ABI
- if (!func->returnType.IsObjectHandle() && !func->returnType.IsReference())
- return ConfigError(asNOT_SUPPORTED, caller, templateType->name.AddressOf(), decl);
- }
- for (asUINT n = 0; n < func->parameterTypes.GetLength(); n++)
- {
- if (func->parameterTypes[n].GetTypeInfo() == templateType->templateSubTypes[subTypeIdx].GetTypeInfo())
- {
- if (func->parameterTypes[n].IsObjectHandle() ||
- (!ep.allowUnsafeReferences && func->parameterTypes[n].IsReference() && func->inOutFlags[n] == asTM_INOUTREF))
- templateType->acceptValueSubType = false;
- else if (!func->parameterTypes[n].IsReference())
- templateType->acceptRefSubType = false;
- // Can't support template subtypes by value, since each type is treated differently in the ABI
- if (!func->parameterTypes[n].IsObjectHandle() && !func->parameterTypes[n].IsReference())
- return ConfigError(asNOT_SUPPORTED, caller, templateType->name.AddressOf(), decl);
- }
- }
- }
- return asSUCCESS;
- }
- int asCScriptEngine::VerifyVarTypeNotInFunction(asCScriptFunction *func)
- {
- // Don't allow var type in this function
- if( func->returnType.GetTokenType() == ttQuestion )
- return asINVALID_DECLARATION;
- for( unsigned int n = 0; n < func->parameterTypes.GetLength(); n++ )
- if( func->parameterTypes[n].GetTokenType() == ttQuestion )
- return asINVALID_DECLARATION;
- return 0;
- }
- int asCScriptEngine::AddBehaviourFunction(asCScriptFunction &func, asSSystemFunctionInterface &internal)
- {
- asUINT n;
- int id = GetNextScriptFunctionId();
- asSSystemFunctionInterface *newInterface = asNEW(asSSystemFunctionInterface)(internal);
- if( newInterface == 0 )
- return asOUT_OF_MEMORY;
- asCScriptFunction *f = asNEW(asCScriptFunction)(this, 0, asFUNC_SYSTEM);
- if( f == 0 )
- {
- asDELETE(newInterface, asSSystemFunctionInterface);
- return asOUT_OF_MEMORY;
- }
- asASSERT(func.name != "" && func.name != "f");
- f->name = func.name;
- f->sysFuncIntf = newInterface;
- f->returnType = func.returnType;
- f->objectType = func.objectType;
- if( f->objectType )
- f->objectType->AddRefInternal();
- f->id = id;
- f->SetReadOnly(func.IsReadOnly());
- f->accessMask = defaultAccessMask;
- f->parameterTypes = func.parameterTypes;
- f->parameterNames = func.parameterNames;
- f->inOutFlags = func.inOutFlags;
- f->traits = func.traits;
- for( n = 0; n < func.defaultArgs.GetLength(); n++ )
- if( func.defaultArgs[n] )
- f->defaultArgs.PushLast(asNEW(asCString)(*func.defaultArgs[n]));
- else
- f->defaultArgs.PushLast(0);
- AddScriptFunction(f);
- // If parameter type from other groups are used, add references
- currentGroup->AddReferencesForFunc(this, f);
- return id;
- }
- // interface
- int asCScriptEngine::RegisterGlobalProperty(const char *declaration, void *pointer)
- {
- // Don't accept a null pointer
- if( pointer == 0 )
- return ConfigError(asINVALID_ARG, "RegisterGlobalProperty", declaration, 0);
- asCDataType type;
- asCString name;
- int r;
- asCBuilder bld(this, 0);
- if( (r = bld.VerifyProperty(0, declaration, name, type, defaultNamespace)) < 0 )
- return ConfigError(r, "RegisterGlobalProperty", declaration, 0);
- // Don't allow registering references as global properties
- if( type.IsReference() )
- return ConfigError(asINVALID_TYPE, "RegisterGlobalProperty", declaration, 0);
- // Store the property info
- asCGlobalProperty *prop = AllocateGlobalProperty();
- prop->name = name;
- prop->nameSpace = defaultNamespace;
- prop->type = type;
- prop->accessMask = defaultAccessMask;
- prop->SetRegisteredAddress(pointer);
- varAddressMap.Insert(prop->GetAddressOfValue(), prop);
- registeredGlobalProps.Put(prop);
- prop->AddRef();
- currentGroup->globalProps.PushLast(prop);
- currentGroup->AddReferencesForType(this, type.GetTypeInfo());
- return asSUCCESS;
- }
- // internal
- asCGlobalProperty *asCScriptEngine::AllocateGlobalProperty()
- {
- asCGlobalProperty *prop = asNEW(asCGlobalProperty);
- if( prop == 0 )
- {
- // Out of memory
- return 0;
- }
- // First check the availability of a free slot
- if( freeGlobalPropertyIds.GetLength() )
- {
- prop->id = freeGlobalPropertyIds.PopLast();
- globalProperties[prop->id] = prop;
- return prop;
- }
- prop->id = (asUINT)globalProperties.GetLength();
- globalProperties.PushLast(prop);
- return prop;
- }
- // internal
- void asCScriptEngine::RemoveGlobalProperty(asCGlobalProperty *prop)
- {
- int index = globalProperties.IndexOf(prop);
- if( index >= 0 )
- {
- freeGlobalPropertyIds.PushLast(index);
- globalProperties[index] = 0;
- asSMapNode<void*, asCGlobalProperty*> *node;
- varAddressMap.MoveTo(&node, prop->GetAddressOfValue());
- asASSERT(node);
- if( node )
- varAddressMap.Erase(node);
- prop->Release();
- }
- }
- // interface
- asUINT asCScriptEngine::GetGlobalPropertyCount() const
- {
- return asUINT(registeredGlobalProps.GetSize());
- }
- // interface
- // TODO: If the typeId ever encodes the const flag, then the isConst parameter should be removed
- int asCScriptEngine::GetGlobalPropertyByIndex(asUINT index, const char **name, const char **nameSpace, int *typeId, bool *isConst, const char **configGroup, void **pointer, asDWORD *accessMask) const
- {
- const asCGlobalProperty *prop = registeredGlobalProps.Get(index);
- if( !prop )
- return asINVALID_ARG;
- if( name ) *name = prop->name.AddressOf();
- if( nameSpace ) *nameSpace = prop->nameSpace->name.AddressOf();
- if( typeId ) *typeId = GetTypeIdFromDataType(prop->type);
- if( isConst ) *isConst = prop->type.IsReadOnly();
- if( pointer ) *pointer = prop->GetRegisteredAddress();
- if( accessMask ) *accessMask = prop->accessMask;
- if( configGroup )
- {
- asCConfigGroup *group = FindConfigGroupForGlobalVar(index);
- if( group )
- *configGroup = group->groupName.AddressOf();
- else
- *configGroup = 0;
- }
- return asSUCCESS;
- }
- // interface
- int asCScriptEngine::GetGlobalPropertyIndexByName(const char *name) const
- {
- asSNameSpace *ns = defaultNamespace;
- // Find the global var id
- while( ns )
- {
- int id = registeredGlobalProps.GetFirstIndex(ns, name);
- if( id >= 0 )
- return id;
- // Recursively search parent namespace
- ns = GetParentNameSpace(ns);
- }
- return asNO_GLOBAL_VAR;
- }
- // interface
- int asCScriptEngine::GetGlobalPropertyIndexByDecl(const char *decl) const
- {
- // This const cast is OK. The builder won't modify the engine
- asCBuilder bld(const_cast<asCScriptEngine*>(this), 0);
- // Don't write parser errors to the message callback
- bld.silent = true;
- asCString name;
- asSNameSpace *ns;
- asCDataType dt;
- int r = bld.ParseVariableDeclaration(decl, defaultNamespace, name, ns, dt);
- if( r < 0 )
- return r;
- // Search for a match
- while( ns )
- {
- int id = registeredGlobalProps.GetFirstIndex(ns, name, asCCompGlobPropType(dt));
- if( id >= 0 )
- return id;
- ns = GetParentNameSpace(ns);
- }
- return asNO_GLOBAL_VAR;
- }
- // interface
- int asCScriptEngine::RegisterObjectMethod(const char *obj, const char *declaration, const asSFuncPtr &funcPointer, asDWORD callConv, void *auxiliary, int compositeOffset, bool isCompositeIndirect)
- {
- if( obj == 0 )
- return ConfigError(asINVALID_ARG, "RegisterObjectMethod", obj, declaration);
- // Determine the object type
- asCDataType dt;
- asCBuilder bld(this, 0);
- int r = bld.ParseDataType(obj, &dt, defaultNamespace);
- if( r < 0 )
- return ConfigError(r, "RegisterObjectMethod", obj, declaration);
- // Don't allow application to modify primitives or handles
- if( dt.GetTypeInfo() == 0 || (dt.IsObjectHandle() && !(dt.GetTypeInfo()->GetFlags() & asOBJ_IMPLICIT_HANDLE)))
- return ConfigError(asINVALID_ARG, "RegisterObjectMethod", obj, declaration);
- // Don't allow application to modify built-in types or funcdefs
- if( dt.GetTypeInfo() == &functionBehaviours ||
- dt.GetTypeInfo() == &scriptTypeBehaviours ||
- CastToFuncdefType(dt.GetTypeInfo()) )
- return ConfigError(asINVALID_ARG, "RegisterObjectMethod", obj, declaration);
- // Don't allow modifying generated template instances
- if( dt.GetTypeInfo() && (dt.GetTypeInfo()->flags & asOBJ_TEMPLATE) && generatedTemplateTypes.Exists(CastToObjectType(dt.GetTypeInfo())) )
- return ConfigError(asINVALID_TYPE, "RegisterObjectMethod", obj, declaration);
- return RegisterMethodToObjectType(CastToObjectType(dt.GetTypeInfo()), declaration, funcPointer, callConv, auxiliary, compositeOffset, isCompositeIndirect);
- }
- // internal
- int asCScriptEngine::RegisterMethodToObjectType(asCObjectType *objectType, const char *declaration, const asSFuncPtr &funcPointer, asDWORD callConv, void *auxiliary, int compositeOffset, bool isCompositeIndirect)
- {
- #ifdef AS_MAX_PORTABILITY
- if( callConv != asCALL_GENERIC )
- return ConfigError(asNOT_SUPPORTED, "RegisterObjectMethod", objectType->name.AddressOf(), declaration);
- #endif
- asSSystemFunctionInterface internal;
- int r = DetectCallingConvention(true, funcPointer, callConv, auxiliary, &internal);
- if( r < 0 )
- return ConfigError(r, "RegisterObjectMethod", objectType->name.AddressOf(), declaration);
- internal.compositeOffset = compositeOffset;
- internal.isCompositeIndirect = isCompositeIndirect;
- if( (compositeOffset || isCompositeIndirect) && callConv != asCALL_THISCALL )
- return ConfigError(asINVALID_ARG, "RegisterObjectMethod", objectType->name.AddressOf(), declaration);
- // TODO: cleanup: This is identical to what is in RegisterMethodToObjectType
- // If the object type is a template, make sure there are no generated instances already
- if( objectType->flags & asOBJ_TEMPLATE )
- {
- for( asUINT n = 0; n < generatedTemplateTypes.GetLength(); n++ )
- {
- asCObjectType *tmpl = generatedTemplateTypes[n];
- if( tmpl->name == objectType->name &&
- tmpl->nameSpace == objectType->nameSpace &&
- !(tmpl->templateSubTypes[0].GetTypeInfo() && (tmpl->templateSubTypes[0].GetTypeInfo()->flags & asOBJ_TEMPLATE_SUBTYPE)) )
- {
- asCString msg;
- msg.Format(TXT_TEMPLATE_s_ALREADY_GENERATED_CANT_REGISTER, asCDataType::CreateType(tmpl, false).Format(tmpl->nameSpace).AddressOf());
- WriteMessage("",0,0, asMSGTYPE_ERROR, msg.AddressOf());
- return ConfigError(asERROR, "RegisterObjectMethod", objectType->name.AddressOf(), declaration);
- }
- }
- }
- isPrepared = false;
- // Put the system function in the list of system functions
- asSSystemFunctionInterface *newInterface = asNEW(asSSystemFunctionInterface)(internal);
- if( newInterface == 0 )
- return ConfigError(asOUT_OF_MEMORY, "RegisterObjectMethod", objectType->name.AddressOf(), declaration);
- asCScriptFunction *func = asNEW(asCScriptFunction)(this, 0, asFUNC_SYSTEM);
- if( func == 0 )
- {
- asDELETE(newInterface, asSSystemFunctionInterface);
- return ConfigError(asOUT_OF_MEMORY, "RegisterObjectMethod", objectType->name.AddressOf(), declaration);
- }
- func->sysFuncIntf = newInterface;
- func->objectType = objectType;
- func->objectType->AddRefInternal();
- asCBuilder bld(this, 0);
- r = bld.ParseFunctionDeclaration(func->objectType, declaration, func, true, &newInterface->paramAutoHandles, &newInterface->returnAutoHandle);
- if( r < 0 )
- {
- // Set as dummy function before deleting
- func->funcType = asFUNC_DUMMY;
- asDELETE(func,asCScriptFunction);
- return ConfigError(asINVALID_DECLARATION, "RegisterObjectMethod", objectType->name.AddressOf(), declaration);
- }
- // Check name conflicts
- r = bld.CheckNameConflictMember(objectType, func->name.AddressOf(), 0, 0, false);
- if( r < 0 )
- {
- func->funcType = asFUNC_DUMMY;
- asDELETE(func,asCScriptFunction);
- return ConfigError(asNAME_TAKEN, "RegisterObjectMethod", objectType->name.AddressOf(), declaration);
- }
- // Check against duplicate methods
- if( func->name == "opConv" || func->name == "opImplConv" || func->name == "opCast" || func->name == "opImplCast" )
- {
- // opConv and opCast are special methods that the compiler differentiates between by the return type
- for( asUINT n = 0; n < func->objectType->methods.GetLength(); n++ )
- {
- asCScriptFunction *f = scriptFunctions[func->objectType->methods[n]];
- if( f->name == func->name &&
- f->IsSignatureExceptNameEqual(func) )
- {
- func->funcType = asFUNC_DUMMY;
- asDELETE(func,asCScriptFunction);
- return ConfigError(asALREADY_REGISTERED, "RegisterObjectMethod", objectType->name.AddressOf(), declaration);
- }
- }
- }
- else
- {
- for( asUINT n = 0; n < func->objectType->methods.GetLength(); n++ )
- {
- asCScriptFunction *f = scriptFunctions[func->objectType->methods[n]];
- if( f->name == func->name &&
- f->IsSignatureExceptNameAndReturnTypeEqual(func) )
- {
- func->funcType = asFUNC_DUMMY;
- asDELETE(func,asCScriptFunction);
- return ConfigError(asALREADY_REGISTERED, "RegisterObjectMethod", objectType->name.AddressOf(), declaration);
- }
- }
- }
- func->id = GetNextScriptFunctionId();
- func->objectType->methods.PushLast(func->id);
- func->accessMask = defaultAccessMask;
- AddScriptFunction(func);
- // If parameter type from other groups are used, add references
- currentGroup->AddReferencesForFunc(this, func);
- // Check if the method restricts that use of the template to value types or reference types
- if( func->objectType->flags & asOBJ_TEMPLATE )
- {
- r = SetTemplateRestrictions(func->objectType, func, "RegisterObjectMethod", declaration);
- if (r < 0)
- return r;
- }
- // TODO: beh.copy member will be removed, so this is not necessary
- // Is this the default copy behaviour?
- if( func->name == "opAssign" && func->parameterTypes.GetLength() == 1 && !func->IsReadOnly() &&
- ((objectType->flags & asOBJ_SCRIPT_OBJECT) || func->parameterTypes[0].IsEqualExceptRefAndConst(asCDataType::CreateType(func->objectType, false))) )
- {
- if( func->objectType->beh.copy != 0 )
- return ConfigError(asALREADY_REGISTERED, "RegisterObjectMethod", objectType->name.AddressOf(), declaration);
- func->objectType->beh.copy = func->id;
- func->AddRefInternal();
- }
- // Return the function id as success
- return func->id;
- }
- // interface
- int asCScriptEngine::RegisterGlobalFunction(const char *declaration, const asSFuncPtr &funcPointer, asDWORD callConv, void *auxiliary)
- {
- #ifdef AS_MAX_PORTABILITY
- if( callConv != asCALL_GENERIC )
- return ConfigError(asNOT_SUPPORTED, "RegisterGlobalFunction", declaration, 0);
- #endif
- asSSystemFunctionInterface internal;
- int r = DetectCallingConvention(false, funcPointer, callConv, auxiliary, &internal);
- if( r < 0 )
- return ConfigError(r, "RegisterGlobalFunction", declaration, 0);
- isPrepared = false;
- // Put the system function in the list of system functions
- asSSystemFunctionInterface *newInterface = asNEW(asSSystemFunctionInterface)(internal);
- if( newInterface == 0 )
- return ConfigError(asOUT_OF_MEMORY, "RegisterGlobalFunction", declaration, 0);
- asCScriptFunction *func = asNEW(asCScriptFunction)(this, 0, asFUNC_SYSTEM);
- if( func == 0 )
- {
- asDELETE(newInterface, asSSystemFunctionInterface);
- return ConfigError(asOUT_OF_MEMORY, "RegisterGlobalFunction", declaration, 0);
- }
- func->sysFuncIntf = newInterface;
- asCBuilder bld(this, 0);
- r = bld.ParseFunctionDeclaration(0, declaration, func, true, &newInterface->paramAutoHandles, &newInterface->returnAutoHandle, defaultNamespace);
- if( r < 0 )
- {
- // Set as dummy function before deleting
- func->funcType = asFUNC_DUMMY;
- asDELETE(func,asCScriptFunction);
- return ConfigError(asINVALID_DECLARATION, "RegisterGlobalFunction", declaration, 0);
- }
- // TODO: namespace: What if the declaration defined an explicit namespace?
- func->nameSpace = defaultNamespace;
- // Check name conflicts
- r = bld.CheckNameConflict(func->name.AddressOf(), 0, 0, defaultNamespace, false);
- if( r < 0 )
- {
- // Set as dummy function before deleting
- func->funcType = asFUNC_DUMMY;
- asDELETE(func,asCScriptFunction);
- return ConfigError(asNAME_TAKEN, "RegisterGlobalFunction", declaration, 0);
- }
- // Make sure the function is not identical to a previously registered function
- asUINT n;
- const asCArray<unsigned int> &idxs = registeredGlobalFuncs.GetIndexes(func->nameSpace, func->name);
- for( n = 0; n < idxs.GetLength(); n++ )
- {
- asCScriptFunction *f = registeredGlobalFuncs.Get(idxs[n]);
- if( f->IsSignatureExceptNameAndReturnTypeEqual(func) )
- {
- func->funcType = asFUNC_DUMMY;
- asDELETE(func,asCScriptFunction);
- return ConfigError(asALREADY_REGISTERED, "RegisterGlobalFunction", declaration, 0);
- }
- }
- func->id = GetNextScriptFunctionId();
- AddScriptFunction(func);
- currentGroup->scriptFunctions.PushLast(func);
- func->accessMask = defaultAccessMask;
- registeredGlobalFuncs.Put(func);
- // If parameter type from other groups are used, add references
- currentGroup->AddReferencesForFunc(this, func);
- // Return the function id as success
- return func->id;
- }
- // interface
- asUINT asCScriptEngine::GetGlobalFunctionCount() const
- {
- // Don't count the builtin delegate factory
- return asUINT(registeredGlobalFuncs.GetSize()-1);
- }
- // interface
- asIScriptFunction *asCScriptEngine::GetGlobalFunctionByIndex(asUINT index) const
- {
- // Don't count the builtin delegate factory
- index++;
- if( index >= registeredGlobalFuncs.GetSize() )
- return 0;
- return static_cast<asIScriptFunction*>(const_cast<asCScriptFunction*>(registeredGlobalFuncs.Get(index)));
- }
- // interface
- asIScriptFunction *asCScriptEngine::GetGlobalFunctionByDecl(const char *decl) const
- {
- asCBuilder bld(const_cast<asCScriptEngine*>(this), 0);
- // Don't write parser errors to the message callback
- bld.silent = true;
- asCScriptFunction func(const_cast<asCScriptEngine*>(this), 0, asFUNC_DUMMY);
- int r = bld.ParseFunctionDeclaration(0, decl, &func, false, 0, 0, defaultNamespace);
- if( r < 0 )
- return 0;
- asSNameSpace *ns = defaultNamespace;
- // Search script functions for matching interface
- while( ns )
- {
- asIScriptFunction *f = 0;
- const asCArray<unsigned int> &idxs = registeredGlobalFuncs.GetIndexes(ns, func.name);
- for( unsigned int n = 0; n < idxs.GetLength(); n++ )
- {
- const asCScriptFunction *funcPtr = registeredGlobalFuncs.Get(idxs[n]);
- if( funcPtr->objectType == 0 &&
- func.returnType == funcPtr->returnType &&
- func.parameterTypes.GetLength() == funcPtr->parameterTypes.GetLength()
- )
- {
- bool match = true;
- for( asUINT p = 0; p < func.parameterTypes.GetLength(); ++p )
- {
- if( func.parameterTypes[p] != funcPtr->parameterTypes[p] )
- {
- match = false;
- break;
- }
- }
- if( match )
- {
- if( f == 0 )
- f = const_cast<asCScriptFunction*>(funcPtr);
- else
- // Multiple functions
- return 0;
- }
- }
- }
- if( f )
- return f;
- // Recursively search parent namespaces
- ns = GetParentNameSpace(ns);
- }
- return 0;
- }
- asCTypeInfo *asCScriptEngine::GetRegisteredType(const asCString &type, asSNameSpace *ns) const
- {
- asSMapNode<asSNameSpaceNamePair, asCTypeInfo *> *cursor;
- if( allRegisteredTypes.MoveTo(&cursor, asSNameSpaceNamePair(ns, type)) )
- return cursor->value;
- return 0;
- }
- void asCScriptEngine::PrepareEngine()
- {
- if( isPrepared ) return;
- if( configFailed ) return;
- asUINT n;
- for( n = 0; n < scriptFunctions.GetLength(); n++ )
- {
- // Determine the host application interface
- if( scriptFunctions[n] && scriptFunctions[n]->funcType == asFUNC_SYSTEM )
- {
- if( scriptFunctions[n]->sysFuncIntf->callConv == ICC_GENERIC_FUNC ||
- scriptFunctions[n]->sysFuncIntf->callConv == ICC_GENERIC_METHOD )
- PrepareSystemFunctionGeneric(scriptFunctions[n], scriptFunctions[n]->sysFuncIntf, this);
- else
- PrepareSystemFunction(scriptFunctions[n], scriptFunctions[n]->sysFuncIntf, this);
- }
- }
- // Validate object type registrations
- for( n = 0; n < registeredObjTypes.GetLength(); n++ )
- {
- asCObjectType *type = registeredObjTypes[n];
- if( type && !(type->flags & asOBJ_SCRIPT_OBJECT) )
- {
- bool missingBehaviour = false;
- const char *infoMsg = 0;
- // Verify that GC types have all behaviours
- if( type->flags & asOBJ_GC )
- {
- if (type->flags & asOBJ_REF)
- {
- if (type->beh.addref == 0 ||
- type->beh.release == 0 ||
- type->beh.gcGetRefCount == 0 ||
- type->beh.gcSetFlag == 0 ||
- type->beh.gcGetFlag == 0 ||
- type->beh.gcEnumReferences == 0 ||
- type->beh.gcReleaseAllReferences == 0)
- {
- infoMsg = TXT_GC_REQUIRE_ADD_REL_GC_BEHAVIOUR;
- missingBehaviour = true;
- }
- }
- else
- {
- if (type->beh.gcEnumReferences == 0)
- {
- infoMsg = TXT_VALUE_GC_REQUIRE_GC_BEHAVIOUR;
- missingBehaviour = true;
- }
- }
- }
- // Verify that scoped ref types have the release behaviour
- if( type->flags & asOBJ_SCOPED )
- {
- if( type->beh.release == 0 )
- {
- infoMsg = TXT_SCOPE_REQUIRE_REL_BEHAVIOUR;
- missingBehaviour = true;
- }
- }
- // Verify that ref types have add ref and release behaviours
- if( (type->flags & asOBJ_REF) &&
- !(type->flags & asOBJ_SCOPED) &&
- !(type->flags & asOBJ_NOHANDLE) &&
- !(type->flags & asOBJ_NOCOUNT) )
- {
- if( type->beh.addref == 0 ||
- type->beh.release == 0 )
- {
- infoMsg = TXT_REF_REQUIRE_ADD_REL_BEHAVIOUR;
- missingBehaviour = true;
- }
- }
- // Verify that non-pod value types have the constructor and destructor registered
- if( (type->flags & asOBJ_VALUE) &&
- !(type->flags & asOBJ_POD) )
- {
- if( type->beh.constructors.GetLength() == 0 ||
- type->beh.destruct == 0 )
- {
- infoMsg = TXT_NON_POD_REQUIRE_CONSTR_DESTR_BEHAVIOUR;
- missingBehaviour = true;
- }
- }
- if( missingBehaviour )
- {
- asCString str;
- str.Format(TXT_TYPE_s_IS_MISSING_BEHAVIOURS, type->name.AddressOf());
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, str.AddressOf());
- WriteMessage("", 0, 0, asMSGTYPE_INFORMATION, infoMsg);
- ConfigError(asINVALID_CONFIGURATION, 0, 0, 0);
- }
- }
- }
- isPrepared = true;
- }
- int asCScriptEngine::ConfigError(int err, const char *funcName, const char *arg1, const char *arg2)
- {
- configFailed = true;
- if( funcName )
- {
- asCString str;
- if( arg1 )
- {
- if( arg2 )
- str.Format(TXT_FAILED_IN_FUNC_s_WITH_s_AND_s_s_d, funcName, arg1, arg2, errorNames[-err], err);
- else
- str.Format(TXT_FAILED_IN_FUNC_s_WITH_s_s_d, funcName, arg1, errorNames[-err], err);
- }
- else
- str.Format(TXT_FAILED_IN_FUNC_s_s_d, funcName, errorNames[-err], err);
- WriteMessage("", 0, 0, asMSGTYPE_ERROR, str.AddressOf());
- }
- return err;
- }
- // interface
- int asCScriptEngine::RegisterDefaultArrayType(const char *type)
- {
- asCBuilder bld(this, 0);
- asCDataType dt;
- int r = bld.ParseDataType(type, &dt, defaultNamespace);
- if( r < 0 ) return r;
- if( dt.GetTypeInfo() == 0 ||
- !(dt.GetTypeInfo()->GetFlags() & asOBJ_TEMPLATE) )
- return asINVALID_TYPE;
- defaultArrayObjectType = CastToObjectType(dt.GetTypeInfo());
- defaultArrayObjectType->AddRefInternal();
- return 0;
- }
- // interface
- int asCScriptEngine::GetDefaultArrayTypeId() const
- {
- if( defaultArrayObjectType )
- return GetTypeIdFromDataType(asCDataType::CreateType(defaultArrayObjectType, false));
- return asINVALID_TYPE;
- }
- // interface
- int asCScriptEngine::RegisterStringFactory(const char *datatype, asIStringFactory *factory)
- {
- if (factory == 0)
- return ConfigError(asINVALID_ARG, "RegisterStringFactory", datatype, 0);
- // Parse the data type
- asCBuilder bld(this, 0);
- asCDataType dt;
- int r = bld.ParseDataType(datatype, &dt, defaultNamespace, true);
- if (r < 0)
- return ConfigError(asINVALID_TYPE, "RegisterStringFactory", datatype, 0);
- // Validate the type. It must not be reference or handle
- if (dt.IsReference() || dt.IsObjectHandle())
- return ConfigError(asINVALID_TYPE, "RegisterStringFactory", datatype, 0);
- // All string literals will be treated as const
- dt.MakeReadOnly(true);
- stringType = dt;
- stringFactory = factory;
- return asSUCCESS;
- }
- // interface
- int asCScriptEngine::GetStringFactoryReturnTypeId(asDWORD *flags) const
- {
- if( stringFactory == 0 )
- return asNO_FUNCTION;
- if( flags )
- *flags = 0;
- return GetTypeIdFromDataType(stringType);
- }
- // internal
- asCModule *asCScriptEngine::GetModule(const char *name, bool create)
- {
- // Accept null as well as zero-length string
- if( name == 0 ) name = "";
- asCModule *retModule = 0;
- ACQUIRESHARED(engineRWLock);
- if( lastModule && lastModule->name == name )
- retModule = lastModule;
- else
- {
- // TODO: optimize: Improve linear search
- for( asUINT n = 0; n < scriptModules.GetLength(); ++n )
- if( scriptModules[n] && scriptModules[n]->name == name )
- {
- retModule = scriptModules[n];
- break;
- }
- }
- RELEASESHARED(engineRWLock);
- if( retModule )
- {
- ACQUIREEXCLUSIVE(engineRWLock);
- lastModule = retModule;
- RELEASEEXCLUSIVE(engineRWLock);
- return retModule;
- }
- if( create )
- {
- retModule = asNEW(asCModule)(name, this);
- if( retModule == 0 )
- {
- // Out of memory
- return 0;
- }
- ACQUIREEXCLUSIVE(engineRWLock);
- scriptModules.PushLast(retModule);
- lastModule = retModule;
- RELEASEEXCLUSIVE(engineRWLock);
- }
- return retModule;
- }
- asCModule *asCScriptEngine::GetModuleFromFuncId(int id)
- {
- if( id < 0 ) return 0;
- if( id >= (int)scriptFunctions.GetLength() ) return 0;
- asCScriptFunction *func = scriptFunctions[id];
- if( func == 0 ) return 0;
- return func->module;
- }
- // internal
- int asCScriptEngine::RequestBuild()
- {
- ACQUIREEXCLUSIVE(engineRWLock);
- if( isBuilding )
- {
- RELEASEEXCLUSIVE(engineRWLock);
- return asBUILD_IN_PROGRESS;
- }
- isBuilding = true;
- RELEASEEXCLUSIVE(engineRWLock);
- return 0;
- }
- // internal
- void asCScriptEngine::BuildCompleted()
- {
- // Always free up pooled memory after a completed build
- memoryMgr.FreeUnusedMemory();
- isBuilding = false;
- }
- void asCScriptEngine::RemoveTemplateInstanceType(asCObjectType *t)
- {
- // If there is a module that still owns the generated type, then don't remove it
- if( t->module )
- return;
- // Don't remove it if there are external refernces
- if( t->externalRefCount.get() )
- return;
- // Only remove the template instance type if no config group is using it
- if( defaultGroup.generatedTemplateInstances.Exists(t) )
- return;
- for( asUINT n = 0; n < configGroups.GetLength(); n++ )
- if( configGroups[n]->generatedTemplateInstances.Exists(t) )
- return;
- t->DestroyInternal();
- templateInstanceTypes.RemoveValue(t);
- generatedTemplateTypes.RemoveValue(t);
- t->ReleaseInternal();
- }
- // internal
- asCObjectType *asCScriptEngine::GetTemplateInstanceType(asCObjectType *templateType, asCArray<asCDataType> &subTypes, asCModule *requestingModule)
- {
- asUINT n;
- // Is there any template instance type or template specialization already with this subtype?
- for( n = 0; n < templateInstanceTypes.GetLength(); n++ )
- {
- asCObjectType *type = templateInstanceTypes[n];
- if( type &&
- type->name == templateType->name &&
- type->nameSpace == templateType->nameSpace &&
- type->templateSubTypes == subTypes )
- {
- // If the template instance is generated, then the module should hold a reference
- // to it so the config group can determine see that the template type is in use.
- // Template specializations will be treated as normal types
- if( requestingModule && generatedTemplateTypes.Exists(type) )
- {
- if( type->module == 0 )
- {
- // Set the ownership of this template type
- // It may be without ownership if it was previously created from application with for example GetTypeInfoByDecl
- type->module = requestingModule;
- }
- if( !requestingModule->templateInstances.Exists(type) )
- {
- requestingModule->templateInstances.PushLast(type);
- type->AddRefInternal();
- }
- }
- return templateInstanceTypes[n];
- }
- }
- // No previous template instance exists
- // Make sure this template supports the subtype
- for( n = 0; n < subTypes.GetLength(); n++ )
- {
- if( !templateType->acceptValueSubType && (subTypes[n].IsPrimitive() || (subTypes[n].GetTypeInfo()->flags & asOBJ_VALUE)) )
- return 0;
- if( !templateType->acceptRefSubType && (subTypes[n].IsObject() && (subTypes[n].GetTypeInfo()->flags & asOBJ_REF)) )
- return 0;
- }
- // Create a new template instance type based on the templateType
- asCObjectType *ot = asNEW(asCObjectType)(this);
- if( ot == 0 )
- {
- // Out of memory
- return 0;
- }
- ot->templateSubTypes = subTypes;
- ot->flags = templateType->flags;
- ot->size = templateType->size;
- ot->name = templateType->name;
- ot->nameSpace = templateType->nameSpace;
- // If the template is being requested from a module, then the module should hold a reference to the type
- if( requestingModule )
- {
- // Set the ownership of this template type
- ot->module = requestingModule;
- requestingModule->templateInstances.PushLast(ot);
- ot->AddRefInternal();
- }
- else
- {
- // If the template type is not requested directly from a module, then set the ownership
- // of it to the same module as one of the subtypes. If none of the subtypes are owned by]
- // any module, the template instance will be without ownership and can be removed from the
- // engine at any time (unless the application holds an external reference).
- for( n = 0; n < subTypes.GetLength(); n++ )
- {
- if( subTypes[n].GetTypeInfo() )
- {
- ot->module = subTypes[n].GetTypeInfo()->module;
- if( ot->module )
- {
- ot->module->templateInstances.PushLast(ot);
- ot->AddRefInternal();
- break;
- }
- }
- }
- }
- // Before filling in the methods, call the template instance callback behaviour to validate the type
- if( templateType->beh.templateCallback )
- {
- // If the validation is deferred then the validation will be done later,
- // so it is necessary to continue the preparation of the template instance type
- if( !deferValidationOfTemplateTypes )
- {
- asCScriptFunction *callback = scriptFunctions[templateType->beh.templateCallback];
- bool dontGarbageCollect = false;
- if( !CallGlobalFunctionRetBool(ot, &dontGarbageCollect, callback->sysFuncIntf, callback) )
- {
- // The type cannot be instantiated
- ot->templateSubTypes.SetLength(0);
- if( ot->module )
- {
- ot->module->templateInstances.RemoveValue(ot);
- ot->ReleaseInternal();
- }
- ot->ReleaseInternal();
- return 0;
- }
- // If the callback said this template instance won't be garbage collected then remove the flag
- if( dontGarbageCollect )
- ot->flags &= ~asOBJ_GC;
- }
- ot->beh.templateCallback = templateType->beh.templateCallback;
- scriptFunctions[ot->beh.templateCallback]->AddRefInternal();
- }
- ot->methods = templateType->methods;
- for( n = 0; n < ot->methods.GetLength(); n++ )
- scriptFunctions[ot->methods[n]]->AddRefInternal();
- if( templateType->flags & asOBJ_REF )
- {
- // Store the real factory in the constructor. This is used by the CreateScriptObject function.
- // Otherwise it wouldn't be necessary to store the real factory ids.
- ot->beh.construct = templateType->beh.factory;
- ot->beh.constructors = templateType->beh.factories;
- }
- else
- {
- ot->beh.construct = templateType->beh.construct;
- ot->beh.constructors = templateType->beh.constructors;
- }
- for( n = 0; n < ot->beh.constructors.GetLength(); n++ )
- scriptFunctions[ot->beh.constructors[n]]->AddRefInternal();
- // Before proceeding with the generation of the template functions for the template instance it is necessary
- // to include the new template instance type in the list of known types, otherwise it is possible that we get
- // a infinite recursive loop as the template instance type is requested again during the generation of the
- // template functions.
- templateInstanceTypes.PushLast(ot);
- // Store the template instance types that have been created automatically by the engine from a template type
- // The object types in templateInstanceTypes that are not also in generatedTemplateTypes are registered template specializations
- generatedTemplateTypes.PushLast(ot);
- // Any child funcdefs must be copied to the template instance (with adjustments in case of template subtypes)
- // This must be done before resolving other methods, to make sure the other methods that may refer to the
- // templated funcdef will resolve to the new funcdef
- for (n = 0; n < templateType->childFuncDefs.GetLength(); n++)
- {
- asCFuncdefType *funcdef = GenerateNewTemplateFuncdef(templateType, ot, templateType->childFuncDefs[n]);
- funcdef->parentClass = ot;
- ot->childFuncDefs.PushLast(funcdef);
- }
- // As the new template type is instantiated the engine should
- // generate new functions to substitute the ones with the template subtype.
- for( n = 0; n < ot->beh.constructors.GetLength(); n++ )
- {
- int funcId = ot->beh.constructors[n];
- asCScriptFunction *func = scriptFunctions[funcId];
- if( GenerateNewTemplateFunction(templateType, ot, func, &func) )
- {
- // Release the old function, the new one already has its ref count set to 1
- scriptFunctions[funcId]->ReleaseInternal();
- ot->beh.constructors[n] = func->id;
- if( ot->beh.construct == funcId )
- ot->beh.construct = func->id;
- }
- }
- ot->beh.factory = 0;
- if( templateType->flags & asOBJ_REF )
- {
- // Generate factory stubs for each of the factories
- for( n = 0; n < ot->beh.constructors.GetLength(); n++ )
- {
- asCScriptFunction *func = GenerateTemplateFactoryStub(templateType, ot, ot->beh.constructors[n]);
- ot->beh.factories.PushLast(func->id);
- // Set the default factory as well
- if( ot->beh.constructors[n] == ot->beh.construct )
- ot->beh.factory = func->id;
- }
- }
- else
- {
- // Generate factory stubs for each of the constructors
- for( n = 0; n < ot->beh.constructors.GetLength(); n++ )
- {
- asCScriptFunction *func = GenerateTemplateFactoryStub(templateType, ot, ot->beh.constructors[n]);
- if( ot->beh.constructors[n] == ot->beh.construct )
- ot->beh.construct = func->id;
- // Release previous constructor
- scriptFunctions[ot->beh.constructors[n]]->ReleaseInternal();
- ot->beh.constructors[n] = func->id;
- }
- }
- // Generate stub for the list factory as well
- if( templateType->beh.listFactory )
- {
- asCScriptFunction *func = GenerateTemplateFactoryStub(templateType, ot, templateType->beh.listFactory);
- // Rename the function to easily identify it in LoadByteCode
- func->name = "$list";
- ot->beh.listFactory = func->id;
- }
- ot->beh.addref = templateType->beh.addref;
- if( scriptFunctions[ot->beh.addref] ) scriptFunctions[ot->beh.addref]->AddRefInternal();
- ot->beh.release = templateType->beh.release;
- if( scriptFunctions[ot->beh.release] ) scriptFunctions[ot->beh.release]->AddRefInternal();
- ot->beh.destruct = templateType->beh.destruct;
- if( scriptFunctions[ot->beh.destruct] ) scriptFunctions[ot->beh.destruct]->AddRefInternal();
- ot->beh.copy = templateType->beh.copy;
- if( scriptFunctions[ot->beh.copy] ) scriptFunctions[ot->beh.copy]->AddRefInternal();
- ot->beh.gcGetRefCount = templateType->beh.gcGetRefCount;
- if( scriptFunctions[ot->beh.gcGetRefCount] ) scriptFunctions[ot->beh.gcGetRefCount]->AddRefInternal();
- ot->beh.gcSetFlag = templateType->beh.gcSetFlag;
- if( scriptFunctions[ot->beh.gcSetFlag] ) scriptFunctions[ot->beh.gcSetFlag]->AddRefInternal();
- ot->beh.gcGetFlag = templateType->beh.gcGetFlag;
- if( scriptFunctions[ot->beh.gcGetFlag] ) scriptFunctions[ot->beh.gcGetFlag]->AddRefInternal();
- ot->beh.gcEnumReferences = templateType->beh.gcEnumReferences;
- if( scriptFunctions[ot->beh.gcEnumReferences] ) scriptFunctions[ot->beh.gcEnumReferences]->AddRefInternal();
- ot->beh.gcReleaseAllReferences = templateType->beh.gcReleaseAllReferences;
- if( scriptFunctions[ot->beh.gcReleaseAllReferences] ) scriptFunctions[ot->beh.gcReleaseAllReferences]->AddRefInternal();
- ot->beh.getWeakRefFlag = templateType->beh.getWeakRefFlag;
- if( scriptFunctions[ot->beh.getWeakRefFlag] ) scriptFunctions[ot->beh.getWeakRefFlag]->AddRefInternal();
- // As the new template type is instantiated, the engine should
- // generate new functions to substitute the ones with the template subtype.
- for( n = 0; n < ot->methods.GetLength(); n++ )
- {
- int funcId = ot->methods[n];
- asCScriptFunction *func = scriptFunctions[funcId];
- if( GenerateNewTemplateFunction(templateType, ot, func, &func) )
- {
- // Release the old function, the new one already has its ref count set to 1
- scriptFunctions[funcId]->ReleaseInternal();
- ot->methods[n] = func->id;
- }
- }
- // Increase ref counter for sub type if it is an object type
- for( n = 0; n < ot->templateSubTypes.GetLength(); n++ )
- if( ot->templateSubTypes[n].GetTypeInfo() )
- ot->templateSubTypes[n].GetTypeInfo()->AddRefInternal();
- // Copy the properties to the template instance
- for( n = 0; n < templateType->properties.GetLength(); n++ )
- {
- asCObjectProperty *prop = templateType->properties[n];
- ot->properties.PushLast(asNEW(asCObjectProperty)(*prop));
- if( prop->type.GetTypeInfo() )
- prop->type.GetTypeInfo()->AddRefInternal();
- }
- return ot;
- }
- // interface
- asILockableSharedBool *asCScriptEngine::GetWeakRefFlagOfScriptObject(void *obj, const asITypeInfo *type) const
- {
- // Make sure it is not a null pointer
- if( obj == 0 || type == 0 ) return 0;
- const asCObjectType *objType = static_cast<const asCObjectType *>(type);
- asILockableSharedBool *dest = 0;
- if( objType->beh.getWeakRefFlag )
- {
- // Call the getweakrefflag behaviour
- dest = reinterpret_cast<asILockableSharedBool*>(CallObjectMethodRetPtr(obj, objType->beh.getWeakRefFlag));
- }
- return dest;
- }
- // internal
- // orig is the parameter type that is to be replaced
- // tmpl is the registered template. Used to find which subtype is being replaced
- // ot is the new template instance that is being created. Used to find the target type
- asCDataType asCScriptEngine::DetermineTypeForTemplate(const asCDataType &orig, asCObjectType *tmpl, asCObjectType *ot)
- {
- asCDataType dt;
- if( orig.GetTypeInfo() && (orig.GetTypeInfo()->flags & asOBJ_TEMPLATE_SUBTYPE) )
- {
- bool found = false;
- for( asUINT n = 0; n < tmpl->templateSubTypes.GetLength(); n++ )
- {
- if( orig.GetTypeInfo() == tmpl->templateSubTypes[n].GetTypeInfo() )
- {
- found = true;
- dt = ot->templateSubTypes[n];
- if( orig.IsObjectHandle() && !ot->templateSubTypes[n].IsObjectHandle() )
- {
- dt.MakeHandle(true, true);
- asASSERT(dt.IsObjectHandle());
- if( orig.IsHandleToConst() )
- dt.MakeHandleToConst(true);
- dt.MakeReference(orig.IsReference());
- dt.MakeReadOnly(orig.IsReadOnly());
- }
- else
- {
- // The target type is a handle, then check if the application
- // wants this handle to be to a const object. This is done by
- // flagging the type with 'if_handle_then_const' in the declaration.
- if (dt.IsObjectHandle() && orig.HasIfHandleThenConst())
- dt.MakeHandleToConst(true);
- dt.MakeReference(orig.IsReference());
- dt.MakeReadOnly(ot->templateSubTypes[n].IsReadOnly() || orig.IsReadOnly());
- // If the target is a @& then don't make the handle const,
- // as it is not possible to declare functions with @const &
- if (orig.IsReference() && dt.IsObjectHandle())
- dt.MakeReadOnly(false);
- }
- break;
- }
- }
- asASSERT( found );
- UNUSED_VAR( found );
- }
- else if( orig.GetTypeInfo() == tmpl )
- {
- if( orig.IsObjectHandle() )
- dt = asCDataType::CreateObjectHandle(ot, false);
- else
- dt = asCDataType::CreateType(ot, false);
- dt.MakeReference(orig.IsReference());
- dt.MakeReadOnly(orig.IsReadOnly());
- }
- else if( orig.GetTypeInfo() && (orig.GetTypeInfo()->flags & asOBJ_TEMPLATE) )
- {
- // The type is itself a template, so it is necessary to find the correct template instance type
- asCArray<asCDataType> tmplSubTypes;
- asCObjectType *origType = CastToObjectType(orig.GetTypeInfo());
- bool needInstance = true;
- // Find the matching replacements for the subtypes
- for( asUINT n = 0; n < origType->templateSubTypes.GetLength(); n++ )
- {
- if( origType->templateSubTypes[n].GetTypeInfo() == 0 ||
- !(origType->templateSubTypes[n].GetTypeInfo()->flags & asOBJ_TEMPLATE_SUBTYPE) )
- {
- // The template is already an instance so we shouldn't attempt to create another instance
- needInstance = false;
- break;
- }
- for( asUINT m = 0; m < tmpl->templateSubTypes.GetLength(); m++ )
- if( origType->templateSubTypes[n].GetTypeInfo() == tmpl->templateSubTypes[m].GetTypeInfo() )
- tmplSubTypes.PushLast(ot->templateSubTypes[m]);
- if( tmplSubTypes.GetLength() != n+1 )
- {
- asASSERT( false );
- return orig;
- }
- }
- asCObjectType *ntype = origType;
- if( needInstance )
- {
- // Always find the original template type when creating a new template instance otherwise the
- // generation will fail since it will attempt to create factory stubs when they already exists, etc
- for( asUINT n = 0; n < registeredTemplateTypes.GetLength(); n++ )
- if( registeredTemplateTypes[n]->name == origType->name &&
- registeredTemplateTypes[n]->nameSpace == origType->nameSpace )
- {
- origType = registeredTemplateTypes[n];
- break;
- }
- ntype = GetTemplateInstanceType(origType, tmplSubTypes, ot->module);
- if( ntype == 0 )
- {
- // It not possible to instantiate the subtype
- asASSERT( false );
- ntype = tmpl;
- }
- }
- if( orig.IsObjectHandle() )
- dt = asCDataType::CreateObjectHandle(ntype, false);
- else
- dt = asCDataType::CreateType(ntype, false);
- dt.MakeReference(orig.IsReference());
- dt.MakeReadOnly(orig.IsReadOnly());
- }
- else if (orig.GetTypeInfo() && (orig.GetTypeInfo()->flags & asOBJ_FUNCDEF) && CastToFuncdefType(orig.GetTypeInfo())->parentClass == tmpl)
- {
- // The type is a child funcdef. Find the corresponding child funcdef in the template instance
- for (asUINT n = 0; n < ot->childFuncDefs.GetLength(); n++)
- {
- if (ot->childFuncDefs[n]->name == orig.GetTypeInfo()->name)
- {
- dt = orig;
- dt.SetTypeInfo(ot->childFuncDefs[n]);
- }
- }
- }
- else
- dt = orig;
- return dt;
- }
- // internal
- asCScriptFunction *asCScriptEngine::GenerateTemplateFactoryStub(asCObjectType *templateType, asCObjectType *ot, int factoryId)
- {
- asCScriptFunction *factory = scriptFunctions[factoryId];
- // By first instantiating the function as a dummy and then changing it to be a script function
- // I avoid having it added to the garbage collector. As it is known that this object will stay
- // alive until the template instance is no longer used there is no need to have the GC check
- // this function all the time.
- asCScriptFunction *func = asNEW(asCScriptFunction)(this, 0, asFUNC_DUMMY);
- if( func == 0 )
- {
- // Out of memory
- return 0;
- }
- func->funcType = asFUNC_SCRIPT;
- func->AllocateScriptFunctionData();
- func->id = GetNextScriptFunctionId();
- AddScriptFunction(func);
- func->traits = factory->traits;
- func->SetShared(true);
- if( templateType->flags & asOBJ_REF )
- {
- func->name = "$fact";
- func->returnType = asCDataType::CreateObjectHandle(ot, false);
- }
- else
- {
- func->name = "$beh0";
- func->returnType = factory->returnType; // constructors return nothing
- func->objectType = ot;
- func->objectType->AddRefInternal();
- }
- // Skip the first parameter as this is the object type pointer that the stub will add
- func->parameterTypes.SetLength(factory->parameterTypes.GetLength()-1);
- func->parameterNames.SetLength(factory->parameterNames.GetLength()-1);
- func->inOutFlags.SetLength(factory->inOutFlags.GetLength()-1);
- func->defaultArgs.SetLength(factory->defaultArgs.GetLength()-1);
- for( asUINT p = 1; p < factory->parameterTypes.GetLength(); p++ )
- {
- func->parameterTypes[p-1] = factory->parameterTypes[p];
- func->parameterNames[p-1] = factory->parameterNames[p];
- func->inOutFlags[p-1] = factory->inOutFlags[p];
- func->defaultArgs[p-1] = factory->defaultArgs[p] ? asNEW(asCString)(*factory->defaultArgs[p]) : 0;
- }
- func->scriptData->objVariablesOnHeap = 0;
- // Generate the bytecode for the factory stub
- asUINT bcLength = asBCTypeSize[asBCInfo[asBC_OBJTYPE].type] +
- asBCTypeSize[asBCInfo[asBC_CALLSYS].type] +
- asBCTypeSize[asBCInfo[asBC_RET].type];
- if( ep.includeJitInstructions )
- bcLength += asBCTypeSize[asBCInfo[asBC_JitEntry].type];
- if( templateType->flags & asOBJ_VALUE )
- bcLength += asBCTypeSize[asBCInfo[asBC_SwapPtr].type];
- func->scriptData->byteCode.SetLength(bcLength);
- asDWORD *bc = func->scriptData->byteCode.AddressOf();
- if( ep.includeJitInstructions )
- {
- *(asBYTE*)bc = asBC_JitEntry;
- *(asPWORD*)(bc+1) = 0;
- bc += asBCTypeSize[asBCInfo[asBC_JitEntry].type];
- }
- *(asBYTE*)bc = asBC_OBJTYPE;
- *(asPWORD*)(bc+1) = (asPWORD)ot;
- bc += asBCTypeSize[asBCInfo[asBC_OBJTYPE].type];
- if( templateType->flags & asOBJ_VALUE )
- {
- // Swap the object pointer with the object type
- *(asBYTE*)bc = asBC_SwapPtr;
- bc += asBCTypeSize[asBCInfo[asBC_SwapPtr].type];
- }
- *(asBYTE*)bc = asBC_CALLSYS;
- *(asDWORD*)(bc+1) = factoryId;
- bc += asBCTypeSize[asBCInfo[asBC_CALLSYS].type];
- *(asBYTE*)bc = asBC_RET;
- *(((asWORD*)bc)+1) = (asWORD)func->GetSpaceNeededForArguments() + (func->objectType ? AS_PTR_SIZE : 0);
- func->AddReferences();
- func->scriptData->stackNeeded = AS_PTR_SIZE;
- // Tell the virtual machine not to clean up the object on exception
- func->dontCleanUpOnException = true;
- func->JITCompile();
- // Need to translate the list pattern too so the VM and compiler will know the correct type of the members
- if( factory->listPattern )
- {
- asSListPatternNode *n = factory->listPattern;
- asSListPatternNode *last = 0;
- while( n )
- {
- asSListPatternNode *newNode = n->Duplicate();
- if( newNode->type == asLPT_TYPE )
- {
- asSListPatternDataTypeNode *typeNode = reinterpret_cast<asSListPatternDataTypeNode*>(newNode);
- typeNode->dataType = DetermineTypeForTemplate(typeNode->dataType, templateType, ot);
- }
- if( last )
- last->next = newNode;
- else
- func->listPattern = newNode;
- last = newNode;
- n = n->next;
- }
- }
- return func;
- }
- bool asCScriptEngine::RequireTypeReplacement(asCDataType &type, asCObjectType *templateType)
- {
- if( type.GetTypeInfo() == templateType ) return true;
- if( type.GetTypeInfo() && (type.GetTypeInfo()->flags & asOBJ_TEMPLATE_SUBTYPE) ) return true;
- if( type.GetTypeInfo() && (type.GetTypeInfo()->flags & asOBJ_TEMPLATE) )
- {
- asCObjectType *ot = CastToObjectType(type.GetTypeInfo());
- for( asUINT n = 0; n < ot->templateSubTypes.GetLength(); n++ )
- if( ot->templateSubTypes[n].GetTypeInfo() &&
- ot->templateSubTypes[n].GetTypeInfo()->flags & asOBJ_TEMPLATE_SUBTYPE )
- return true;
- }
- if (type.GetTypeInfo() && (type.GetTypeInfo()->flags & asOBJ_FUNCDEF) && CastToFuncdefType(type.GetTypeInfo())->parentClass == templateType)
- return true;
- return false;
- }
- bool asCScriptEngine::GenerateNewTemplateFunction(asCObjectType *templateType, asCObjectType *ot, asCScriptFunction *func, asCScriptFunction **newFunc)
- {
- // Due to the objectType it is always required to generate a new function,
- // even if none of the function arguments needs to be changed.
- /*
- // TODO: Can we store the new function in some other optimized way to avoid
- // duplicating all information just because of the different objectType member?
- bool needNewFunc = false;
- if( RequireTypeReplacement(func->returnType, templateType) )
- needNewFunc = true;
- else
- {
- for( asUINT p = 0; p < func->parameterTypes.GetLength(); p++ )
- {
- if( RequireTypeReplacement(func->parameterTypes[p], templateType) )
- {
- needNewFunc = true;
- break;
- }
- }
- }
- if( !needNewFunc )
- return false;
- */
- asCScriptFunction *func2 = asNEW(asCScriptFunction)(this, 0, func->funcType);
- if( func2 == 0 )
- {
- // Out of memory
- return false;
- }
- func2->name = func->name;
- func2->returnType = DetermineTypeForTemplate(func->returnType, templateType, ot);
- func2->parameterTypes.SetLength(func->parameterTypes.GetLength());
- for (asUINT p = 0; p < func->parameterTypes.GetLength(); p++)
- func2->parameterTypes[p] = DetermineTypeForTemplate(func->parameterTypes[p], templateType, ot);
- for (asUINT n = 0; n < func->defaultArgs.GetLength(); n++)
- if (func->defaultArgs[n])
- func2->defaultArgs.PushLast(asNEW(asCString)(*func->defaultArgs[n]));
- else
- func2->defaultArgs.PushLast(0);
- // TODO: template: Must be careful when instantiating templates for garbage collected types
- // If the template hasn't been registered with the behaviours, it shouldn't
- // permit instantiation of garbage collected types that in turn may refer to
- // this instance.
- func2->parameterNames = func->parameterNames;
- func2->inOutFlags = func->inOutFlags;
- func2->traits = func->traits;
- func2->SetReadOnly(func->IsReadOnly());
- func2->objectType = ot;
- func2->objectType->AddRefInternal();
- func2->sysFuncIntf = asNEW(asSSystemFunctionInterface)(*func->sysFuncIntf);
- // Adjust the clean up instructions
- if( func2->sysFuncIntf->callConv == ICC_GENERIC_FUNC ||
- func2->sysFuncIntf->callConv == ICC_GENERIC_METHOD )
- PrepareSystemFunctionGeneric(func2, func2->sysFuncIntf, this);
- else
- PrepareSystemFunction(func2, func2->sysFuncIntf, this);
- func2->id = GetNextScriptFunctionId();
- AddScriptFunction(func2);
- // Return the new function
- *newFunc = func2;
- return true;
- }
- asCFuncdefType *asCScriptEngine::GenerateNewTemplateFuncdef(asCObjectType *templateType, asCObjectType *ot, asCFuncdefType *func)
- {
- // TODO: Only generate the new funcdef if it used the template subtypes.
- // Remember to also update the clean up in asCObjectType::DestroyInternal so it doesn't delete
- // child funcdefs that have not been created specificially for the template instance.
- // Perhaps a new funcdef is always needed, since the funcdef will have a reference to the
- // parent class (in this case the template instance).
- asCScriptFunction *func2 = asNEW(asCScriptFunction)(this, 0, func->funcdef->funcType);
- if (func2 == 0)
- {
- // Out of memory
- return 0;
- }
- func2->name = func->name;
- func2->returnType = DetermineTypeForTemplate(func->funcdef->returnType, templateType, ot);
- func2->parameterTypes.SetLength(func->funcdef->parameterTypes.GetLength());
- for (asUINT p = 0; p < func->funcdef->parameterTypes.GetLength(); p++)
- func2->parameterTypes[p] = DetermineTypeForTemplate(func->funcdef->parameterTypes[p], templateType, ot);
- // TODO: template: Must be careful when instantiating templates for garbage collected types
- // If the template hasn't been registered with the behaviours, it shouldn't
- // permit instantiation of garbage collected types that in turn may refer to
- // this instance.
- func2->inOutFlags = func->funcdef->inOutFlags;
- func2->SetReadOnly(func->funcdef->IsReadOnly());
- asASSERT(func->funcdef->objectType == 0);
- asASSERT(func->funcdef->sysFuncIntf == 0);
- func2->id = GetNextScriptFunctionId();
- AddScriptFunction(func2);
- asCFuncdefType *fdt2 = asNEW(asCFuncdefType)(this, func2);
- funcDefs.PushLast(fdt2); // don't increase refCount as the constructor already set it to 1
- // Return the new function
- return fdt2;
- }
- void asCScriptEngine::CallObjectMethod(void *obj, int func) const
- {
- asCScriptFunction *s = scriptFunctions[func];
- asASSERT( s != 0 );
- CallObjectMethod(obj, s->sysFuncIntf, s);
- }
- void asCScriptEngine::CallObjectMethod(void *obj, asSSystemFunctionInterface *i, asCScriptFunction *s) const
- {
- #if defined(__GNUC__) || defined(AS_PSVITA)
- if( i->callConv == ICC_GENERIC_METHOD )
- {
- asCGeneric gen(const_cast<asCScriptEngine*>(this), s, obj, 0);
- void (*f)(asIScriptGeneric *) = (void (*)(asIScriptGeneric *))(i->func);
- f(&gen);
- }
- else if( i->callConv == ICC_THISCALL || i->callConv == ICC_VIRTUAL_THISCALL )
- {
- // For virtual thiscalls we must call the method as a true class method
- // so that the compiler will lookup the function address in the vftable
- union
- {
- asSIMPLEMETHOD_t mthd;
- struct
- {
- asFUNCTION_t func;
- asPWORD baseOffset; // Same size as the pointer
- } f;
- } p;
- obj = (void*) ((char*) obj + i->compositeOffset);
- if(i->isCompositeIndirect)
- obj = *((void**)obj);
- p.f.func = (asFUNCTION_t)(i->func);
- p.f.baseOffset = asPWORD(i->baseOffset);
- void (asCSimpleDummy::*f)() = p.mthd;
- (((asCSimpleDummy*)obj)->*f)();
- }
- else /*if( i->callConv == ICC_CDECL_OBJLAST || i->callConv == ICC_CDECL_OBJFIRST )*/
- {
- void (*f)(void *) = (void (*)(void *))(i->func);
- f(obj);
- }
- #else
- #ifndef AS_NO_CLASS_METHODS
- if( i->callConv == ICC_THISCALL )
- {
- union
- {
- asSIMPLEMETHOD_t mthd;
- asFUNCTION_t func;
- } p;
- p.func = (asFUNCTION_t)(i->func);
- void (asCSimpleDummy::*f)() = p.mthd;
- obj = (void*) ((char*) obj + i->compositeOffset);
- if(i->isCompositeIndirect)
- obj = *((void**)obj);
- obj = (void*)(asPWORD(obj) + i->baseOffset);
- (((asCSimpleDummy*)obj)->*f)();
- }
- else
- #endif
- if( i->callConv == ICC_GENERIC_METHOD )
- {
- asCGeneric gen(const_cast<asCScriptEngine*>(this), s, obj, 0);
- void (*f)(asIScriptGeneric *) = (void (*)(asIScriptGeneric *))(i->func);
- f(&gen);
- }
- else /*if( i->callConv == ICC_CDECL_OBJLAST || i->callConv == ICC_CDECL_OBJFIRST )*/
- {
- void (*f)(void *) = (void (*)(void *))(i->func);
- f(obj);
- }
- #endif
- }
- bool asCScriptEngine::CallObjectMethodRetBool(void *obj, int func) const
- {
- asCScriptFunction *s = scriptFunctions[func];
- asASSERT( s != 0 );
- asSSystemFunctionInterface *i = s->sysFuncIntf;
- #if defined(__GNUC__) || defined(AS_PSVITA)
- if( i->callConv == ICC_GENERIC_METHOD )
- {
- asCGeneric gen(const_cast<asCScriptEngine*>(this), s, obj, 0);
- void (*f)(asIScriptGeneric *) = (void (*)(asIScriptGeneric *))(i->func);
- f(&gen);
- return *(bool*)gen.GetReturnPointer();
- }
- else if( i->callConv == ICC_THISCALL || i->callConv == ICC_VIRTUAL_THISCALL )
- {
- // For virtual thiscalls we must call the method as a true class method so that the compiler will lookup the function address in the vftable
- union
- {
- asSIMPLEMETHOD_t mthd;
- struct
- {
- asFUNCTION_t func;
- asPWORD baseOffset;
- } f;
- } p;
- obj = (void*) ((char*) obj + i->compositeOffset);
- if(i->isCompositeIndirect)
- obj = *((void**)obj);
- p.f.func = (asFUNCTION_t)(i->func);
- p.f.baseOffset = asPWORD(i->baseOffset);
- bool (asCSimpleDummy::*f)() = (bool (asCSimpleDummy::*)())(p.mthd);
- return (((asCSimpleDummy*)obj)->*f)();
- }
- else /*if( i->callConv == ICC_CDECL_OBJLAST || i->callConv == ICC_CDECL_OBJFIRST )*/
- {
- bool (*f)(void *) = (bool (*)(void *))(i->func);
- return f(obj);
- }
- #else
- #ifndef AS_NO_CLASS_METHODS
- if( i->callConv == ICC_THISCALL )
- {
- union
- {
- asSIMPLEMETHOD_t mthd;
- asFUNCTION_t func;
- } p;
- p.func = (asFUNCTION_t)(i->func);
- bool (asCSimpleDummy::*f)() = (bool (asCSimpleDummy::*)())p.mthd;
- obj = (void*) ((char*) obj + i->compositeOffset);
- if(i->isCompositeIndirect)
- obj = *((void**)obj);
- obj = (void*)(asPWORD(obj) + i->baseOffset);
- return (((asCSimpleDummy*)obj)->*f)();
- }
- else
- #endif
- if( i->callConv == ICC_GENERIC_METHOD )
- {
- asCGeneric gen(const_cast<asCScriptEngine*>(this), s, obj, 0);
- void (*f)(asIScriptGeneric *) = (void (*)(asIScriptGeneric *))(i->func);
- f(&gen);
- return *(bool*)gen.GetReturnPointer();
- }
- else /*if( i->callConv == ICC_CDECL_OBJLAST || i->callConv == ICC_CDECL_OBJFIRST )*/
- {
- bool (*f)(void *) = (bool (*)(void *))(i->func);
- return f(obj);
- }
- #endif
- }
- int asCScriptEngine::CallObjectMethodRetInt(void *obj, int func) const
- {
- asCScriptFunction *s = scriptFunctions[func];
- asASSERT( s != 0 );
- asSSystemFunctionInterface *i = s->sysFuncIntf;
- #if defined(__GNUC__) || defined(AS_PSVITA)
- if( i->callConv == ICC_GENERIC_METHOD )
- {
- asCGeneric gen(const_cast<asCScriptEngine*>(this), s, obj, 0);
- void (*f)(asIScriptGeneric *) = (void (*)(asIScriptGeneric *))(i->func);
- f(&gen);
- return *(int*)gen.GetReturnPointer();
- }
- else if( i->callConv == ICC_THISCALL || i->callConv == ICC_VIRTUAL_THISCALL )
- {
- // For virtual thiscalls we must call the method as a true class method so that the compiler will lookup the function address in the vftable
- union
- {
- asSIMPLEMETHOD_t mthd;
- struct
- {
- asFUNCTION_t func;
- asPWORD baseOffset;
- } f;
- } p;
- p.f.func = (asFUNCTION_t)(i->func);
- p.f.baseOffset = asPWORD(i->baseOffset);
- obj = (void*) ((char*) obj + i->compositeOffset);
- if(i->isCompositeIndirect)
- obj = *((void**)obj);
- int (asCSimpleDummy::*f)() = (int (asCSimpleDummy::*)())(p.mthd);
- return (((asCSimpleDummy*)obj)->*f)();
- }
- else /*if( i->callConv == ICC_CDECL_OBJLAST || i->callConv == ICC_CDECL_OBJFIRST )*/
- {
- int (*f)(void *) = (int (*)(void *))(i->func);
- return f(obj);
- }
- #else
- #ifndef AS_NO_CLASS_METHODS
- if( i->callConv == ICC_THISCALL )
- {
- union
- {
- asSIMPLEMETHOD_t mthd;
- asFUNCTION_t func;
- } p;
- p.func = (asFUNCTION_t)(i->func);
- int (asCSimpleDummy::*f)() = (int (asCSimpleDummy::*)())p.mthd;
- obj = (void*) ((char*) obj + i->compositeOffset);
- if(i->isCompositeIndirect)
- obj = *((void**)obj);
- obj = (void*)(asPWORD(obj) + i->baseOffset);
- return (((asCSimpleDummy*)obj)->*f)();
- }
- else
- #endif
- if( i->callConv == ICC_GENERIC_METHOD )
- {
- asCGeneric gen(const_cast<asCScriptEngine*>(this), s, obj, 0);
- void (*f)(asIScriptGeneric *) = (void (*)(asIScriptGeneric *))(i->func);
- f(&gen);
- return *(int*)gen.GetReturnPointer();
- }
- else /*if( i->callConv == ICC_CDECL_OBJLAST || i->callConv == ICC_CDECL_OBJFIRST )*/
- {
- int (*f)(void *) = (int (*)(void *))(i->func);
- return f(obj);
- }
- #endif
- }
- void *asCScriptEngine::CallObjectMethodRetPtr(void *obj, int func) const
- {
- asCScriptFunction *s = scriptFunctions[func];
- asASSERT( s != 0 );
- asSSystemFunctionInterface *i = s->sysFuncIntf;
- #if defined(__GNUC__) || defined(AS_PSVITA)
- if( i->callConv == ICC_GENERIC_METHOD )
- {
- asCGeneric gen(const_cast<asCScriptEngine*>(this), s, obj, 0);
- void (*f)(asIScriptGeneric *) = (void (*)(asIScriptGeneric *))(i->func);
- f(&gen);
- return *(void**)gen.GetReturnPointer();
- }
- else if( i->callConv == ICC_THISCALL || i->callConv == ICC_VIRTUAL_THISCALL )
- {
- // For virtual thiscalls we must call the method as a true class method so that the compiler will lookup the function address in the vftable
- union
- {
- asSIMPLEMETHOD_t mthd;
- struct
- {
- asFUNCTION_t func;
- asPWORD baseOffset;
- } f;
- } p;
- p.f.func = (asFUNCTION_t)(i->func);
- p.f.baseOffset = asPWORD(i->baseOffset);
- obj = (void*) ((char*) obj + i->compositeOffset);
- if(i->isCompositeIndirect)
- obj = *((void**)obj);
- void *(asCSimpleDummy::*f)() = (void *(asCSimpleDummy::*)())(p.mthd);
- return (((asCSimpleDummy*)obj)->*f)();
- }
- else /*if( i->callConv == ICC_CDECL_OBJLAST || i->callConv == ICC_CDECL_OBJFIRST )*/
- {
- void *(*f)(void *) = (void *(*)(void *))(i->func);
- return f(obj);
- }
- #else
- #ifndef AS_NO_CLASS_METHODS
- if( i->callConv == ICC_THISCALL )
- {
- union
- {
- asSIMPLEMETHOD_t mthd;
- asFUNCTION_t func;
- } p;
- p.func = (asFUNCTION_t)(i->func);
- void *(asCSimpleDummy::*f)() = (void *(asCSimpleDummy::*)())p.mthd;
- obj = (void*) ((char*) obj + i->compositeOffset);
- if(i->isCompositeIndirect)
- obj = *((void**)obj);
- obj = (void*)(asPWORD(obj) + i->baseOffset);
- return (((asCSimpleDummy*)obj)->*f)();
- }
- else
- #endif
- if( i->callConv == ICC_GENERIC_METHOD )
- {
- asCGeneric gen(const_cast<asCScriptEngine*>(this), s, obj, 0);
- void (*f)(asIScriptGeneric *) = (void (*)(asIScriptGeneric *))(i->func);
- f(&gen);
- return *(void **)gen.GetReturnPointer();
- }
- else /*if( i->callConv == ICC_CDECL_OBJLAST || i->callConv == ICC_CDECL_OBJFIRST )*/
- {
- void *(*f)(void *) = (void *(*)(void *))(i->func);
- return f(obj);
- }
- #endif
- }
- void *asCScriptEngine::CallObjectMethodRetPtr(void *obj, int param1, asCScriptFunction *func) const
- {
- asASSERT( obj != 0 );
- asASSERT( func != 0 );
- asSSystemFunctionInterface *i = func->sysFuncIntf;
- #ifndef AS_NO_CLASS_METHODS
- if( i->callConv == ICC_THISCALL || i->callConv == ICC_VIRTUAL_THISCALL )
- {
- #if defined(__GNUC__) || defined(AS_PSVITA)
- // For virtual thiscalls we must call the method as a true class method so that the compiler will lookup the function address in the vftable
- union
- {
- asSIMPLEMETHOD_t mthd;
- struct
- {
- asFUNCTION_t func;
- asPWORD baseOffset;
- } f;
- } p;
- p.f.func = (asFUNCTION_t)(i->func);
- p.f.baseOffset = asPWORD(i->baseOffset);
- obj = (void*) ((char*) obj + i->compositeOffset);
- if(i->isCompositeIndirect)
- obj = *((void**)obj);
- void *(asCSimpleDummy::*f)(int) = (void *(asCSimpleDummy::*)(int))(p.mthd);
- return (((asCSimpleDummy*)obj)->*f)(param1);
- #else
- union
- {
- asSIMPLEMETHOD_t mthd;
- asFUNCTION_t func;
- } p;
- p.func = (asFUNCTION_t)(i->func);
- void *(asCSimpleDummy::*f)(int) = (void *(asCSimpleDummy::*)(int))p.mthd;
- obj = (void*) ((char*) obj + i->compositeOffset);
- if(i->isCompositeIndirect)
- obj = *((void**)obj);
- obj = (void*)(asPWORD(obj) + i->baseOffset);
- return (((asCSimpleDummy*)obj)->*f)(param1);
- #endif
- }
- else
- #endif
- if( i->callConv == ICC_GENERIC_METHOD )
- {
- asCGeneric gen(const_cast<asCScriptEngine*>(this), func, obj, reinterpret_cast<asDWORD*>(¶m1));
- void (*f)(asIScriptGeneric *) = (void (*)(asIScriptGeneric *))(i->func);
- f(&gen);
- return *(void **)gen.GetReturnPointer();
- }
- else if( i->callConv == ICC_CDECL_OBJLAST )
- {
- void *(*f)(int, void *) = (void *(*)(int, void *))(i->func);
- return f(param1, obj);
- }
- else /*if( i->callConv == ICC_CDECL_OBJFIRST )*/
- {
- void *(*f)(void *, int) = (void *(*)(void *, int))(i->func);
- return f(obj, param1);
- }
- }
- void *asCScriptEngine::CallGlobalFunctionRetPtr(int func) const
- {
- asCScriptFunction *s = scriptFunctions[func];
- asASSERT( s != 0 );
- return CallGlobalFunctionRetPtr(s->sysFuncIntf, s);
- }
- void *asCScriptEngine::CallGlobalFunctionRetPtr(int func, void *param1) const
- {
- asCScriptFunction *s = scriptFunctions[func];
- asASSERT( s != 0 );
- return CallGlobalFunctionRetPtr(s->sysFuncIntf, s, param1);
- }
- void *asCScriptEngine::CallGlobalFunctionRetPtr(asSSystemFunctionInterface *i, asCScriptFunction *s) const
- {
- if( i->callConv == ICC_CDECL )
- {
- void *(*f)() = (void *(*)())(i->func);
- return f();
- }
- else if( i->callConv == ICC_STDCALL )
- {
- typedef void *(STDCALL *func_t)();
- func_t f = (func_t)(i->func);
- return f();
- }
- else
- {
- asCGeneric gen(const_cast<asCScriptEngine*>(this), s, 0, 0);
- void (*f)(asIScriptGeneric *) = (void (*)(asIScriptGeneric *))(i->func);
- f(&gen);
- return *(void**)gen.GetReturnPointer();
- }
- }
- void *asCScriptEngine::CallGlobalFunctionRetPtr(asSSystemFunctionInterface *i, asCScriptFunction *s, void *param1) const
- {
- if( i->callConv == ICC_CDECL )
- {
- void *(*f)(void *) = (void *(*)(void *))(i->func);
- return f(param1);
- }
- else if( i->callConv == ICC_STDCALL )
- {
- typedef void *(STDCALL *func_t)(void *);
- func_t f = (func_t)(i->func);
- return f(param1);
- }
- else
- {
- asCGeneric gen(const_cast<asCScriptEngine*>(this), s, 0, (asDWORD*)¶m1);
- void (*f)(asIScriptGeneric *) = (void (*)(asIScriptGeneric *))(i->func);
- f(&gen);
- return *(void**)gen.GetReturnPointer();
- }
- }
- void asCScriptEngine::CallObjectMethod(void *obj, void *param, int func) const
- {
- asCScriptFunction *s = scriptFunctions[func];
- asASSERT( s != 0 );
- CallObjectMethod(obj, param, s->sysFuncIntf, s);
- }
- void asCScriptEngine::CallObjectMethod(void *obj, void *param, asSSystemFunctionInterface *i, asCScriptFunction *s) const
- {
- #if defined(__GNUC__) || defined(AS_PSVITA)
- if( i->callConv == ICC_CDECL_OBJLAST )
- {
- void (*f)(void *, void *) = (void (*)(void *, void *))(i->func);
- f(param, obj);
- }
- else if( i->callConv == ICC_GENERIC_METHOD )
- {
- asCGeneric gen(const_cast<asCScriptEngine*>(this), s, obj, (asDWORD*)¶m);
- void (*f)(asIScriptGeneric *) = (void (*)(asIScriptGeneric *))(i->func);
- f(&gen);
- }
- else if( i->callConv == ICC_VIRTUAL_THISCALL || i->callConv == ICC_THISCALL )
- {
- // For virtual thiscalls we must call the method as a true class method
- // so that the compiler will lookup the function address in the vftable
- union
- {
- asSIMPLEMETHOD_t mthd;
- struct
- {
- asFUNCTION_t func;
- asPWORD baseOffset; // Same size as the pointer
- } f;
- } p;
- p.f.func = (asFUNCTION_t)(i->func);
- p.f.baseOffset = asPWORD(i->baseOffset);
- obj = (void*) ((char*) obj + i->compositeOffset);
- if(i->isCompositeIndirect)
- obj = *((void**)obj);
- void (asCSimpleDummy::*f)(void*) = (void (asCSimpleDummy::*)(void*))(p.mthd);
- (((asCSimpleDummy*)obj)->*f)(param);
- }
- else /*if( i->callConv == ICC_CDECL_OBJFIRST */
- {
- void (*f)(void *, void *) = (void (*)(void *, void *))(i->func);
- f(obj, param);
- }
- #else
- #ifndef AS_NO_CLASS_METHODS
- if( i->callConv == ICC_THISCALL )
- {
- union
- {
- asSIMPLEMETHOD_t mthd;
- asFUNCTION_t func;
- } p;
- p.func = (asFUNCTION_t)(i->func);
- void (asCSimpleDummy::*f)(void *) = (void (asCSimpleDummy::*)(void *))(p.mthd);
- obj = (void*) ((char*) obj + i->compositeOffset);
- if(i->isCompositeIndirect)
- obj = *((void**)obj);
- obj = (void*)(asPWORD(obj) + i->baseOffset);
- (((asCSimpleDummy*)obj)->*f)(param);
- }
- else
- #endif
- if( i->callConv == ICC_CDECL_OBJLAST )
- {
- void (*f)(void *, void *) = (void (*)(void *, void *))(i->func);
- f(param, obj);
- }
- else if( i->callConv == ICC_GENERIC_METHOD )
- {
- asCGeneric gen(const_cast<asCScriptEngine*>(this), s, obj, (asDWORD*)¶m);
- void (*f)(asIScriptGeneric *) = (void (*)(asIScriptGeneric *))(i->func);
- f(&gen);
- }
- else /*if( i->callConv == ICC_CDECL_OBJFIRST )*/
- {
- void (*f)(void *, void *) = (void (*)(void *, void *))(i->func);
- f(obj, param);
- }
- #endif
- }
- void asCScriptEngine::CallGlobalFunction(void *param1, void *param2, asSSystemFunctionInterface *i, asCScriptFunction *s) const
- {
- if( i->callConv == ICC_CDECL )
- {
- void (*f)(void *, void *) = (void (*)(void *, void *))(i->func);
- f(param1, param2);
- }
- else if( i->callConv == ICC_STDCALL )
- {
- typedef void (STDCALL *func_t)(void *, void *);
- func_t f = (func_t)(i->func);
- f(param1, param2);
- }
- else
- {
- // We must guarantee the order of the arguments which is why we copy them to this
- // array. Otherwise the compiler may put them anywhere it likes, or even keep them
- // in the registers which causes problem.
- void *params[2] = {param1, param2};
- asCGeneric gen(const_cast<asCScriptEngine*>(this), s, 0, (asDWORD*)¶ms);
- void (*f)(asIScriptGeneric *) = (void (*)(asIScriptGeneric *))(i->func);
- f(&gen);
- }
- }
- bool asCScriptEngine::CallGlobalFunctionRetBool(void *param1, void *param2, asSSystemFunctionInterface *i, asCScriptFunction *s) const
- {
- if( i->callConv == ICC_CDECL )
- {
- bool (*f)(void *, void *) = (bool (*)(void *, void *))(i->func);
- return f(param1, param2);
- }
- else if( i->callConv == ICC_STDCALL )
- {
- typedef bool (STDCALL *func_t)(void *, void *);
- func_t f = (func_t)(i->func);
- return f(param1, param2);
- }
- else
- {
- // TODO: When simulating a 64bit environment by defining AS_64BIT_PTR on a 32bit platform this code
- // fails, because the stack given to asCGeneric is not prepared with two 64bit arguments.
- // We must guarantee the order of the arguments which is why we copy them to this
- // array. Otherwise the compiler may put them anywhere it likes, or even keep them
- // in the registers which causes problem.
- void *params[2] = {param1, param2};
- asCGeneric gen(const_cast<asCScriptEngine*>(this), s, 0, (asDWORD*)params);
- void (*f)(asIScriptGeneric *) = (void (*)(asIScriptGeneric *))(i->func);
- f(&gen);
- return *(bool*)gen.GetReturnPointer();
- }
- }
- void *asCScriptEngine::CallAlloc(const asCObjectType *type) const
- {
- // Allocate 4 bytes as the smallest size. Otherwise CallSystemFunction may try to
- // copy a DWORD onto a smaller memory block, in case the object type is return in registers.
- // Pad to the next even 4 bytes to avoid asBC_CPY writing outside of allocated buffer for registered POD types
- asUINT size = type->size;
- if( size & 0x3 )
- size += 4 - (size & 0x3);
- #ifndef WIP_16BYTE_ALIGN
- #if defined(AS_DEBUG)
- return ((asALLOCFUNCDEBUG_t)userAlloc)(size, __FILE__, __LINE__);
- #else
- return userAlloc(size);
- #endif
- #else
- #if defined(AS_DEBUG)
- return ((asALLOCALIGNEDFUNCDEBUG_t)userAllocAligned)(size, type->alignment, __FILE__, __LINE__);
- #else
- return userAllocAligned(size, type->alignment);
- #endif
- #endif
- }
- void asCScriptEngine::CallFree(void *obj) const
- {
- #ifndef WIP_16BYTE_ALIGN
- userFree(obj);
- #else
- userFreeAligned(obj);
- #endif
- }
- // interface
- int asCScriptEngine::NotifyGarbageCollectorOfNewObject(void *obj, asITypeInfo *type)
- {
- return gc.AddScriptObjectToGC(obj, static_cast<asCObjectType*>(type));
- }
- // interface
- int asCScriptEngine::GetObjectInGC(asUINT idx, asUINT *seqNbr, void **obj, asITypeInfo **type)
- {
- return gc.GetObjectInGC(idx, seqNbr, obj, type);
- }
- // interface
- int asCScriptEngine::GarbageCollect(asDWORD flags, asUINT iterations)
- {
- int r = gc.GarbageCollect(flags, iterations);
- if( r == 0 )
- {
- // Delete any modules that have been discarded previously but not
- // removed due to being referred to by objects in the garbage collector
- DeleteDiscardedModules();
- }
- return r;
- }
- // interface
- void asCScriptEngine::GetGCStatistics(asUINT *currentSize, asUINT *totalDestroyed, asUINT *totalDetected, asUINT *newObjects, asUINT *totalNewDestroyed) const
- {
- gc.GetStatistics(currentSize, totalDestroyed, totalDetected, newObjects, totalNewDestroyed);
- }
- // interface
- void asCScriptEngine::GCEnumCallback(void *reference)
- {
- gc.GCEnumCallback(reference);
- }
- // interface
- void asCScriptEngine::ForwardGCEnumReferences(void *ref, asITypeInfo *type)
- {
- asCTypeInfo *t = reinterpret_cast<asCTypeInfo*>(type);
- if ((t->flags & asOBJ_VALUE) && (t->flags & asOBJ_GC))
- {
- CallObjectMethod(ref, this, CastToObjectType(t)->beh.gcEnumReferences);
- }
- }
- // interface
- void asCScriptEngine::ForwardGCReleaseReferences(void *ref, asITypeInfo *type)
- {
- asCTypeInfo *t = reinterpret_cast<asCTypeInfo*>(type);
- if ((t->flags & asOBJ_VALUE) && (t->flags & asOBJ_GC))
- {
- CallObjectMethod(ref, this, CastToObjectType(t)->beh.gcReleaseAllReferences);
- }
- }
- // interface
- void asCScriptEngine::SetCircularRefDetectedCallback(asCIRCULARREFFUNC_t callback, void *param)
- {
- gc.circularRefDetectCallbackFunc = callback;
- gc.circularRefDetectCallbackParam = param;
- }
- int asCScriptEngine::GetTypeIdFromDataType(const asCDataType &dtIn) const
- {
- if( dtIn.IsNullHandle() ) return asTYPEID_VOID;
- if( dtIn.GetTypeInfo() == 0 )
- {
- // Primitives have pre-fixed typeIds
- switch( dtIn.GetTokenType() )
- {
- case ttVoid: return asTYPEID_VOID;
- case ttBool: return asTYPEID_BOOL;
- case ttInt8: return asTYPEID_INT8;
- case ttInt16: return asTYPEID_INT16;
- case ttInt: return asTYPEID_INT32;
- case ttInt64: return asTYPEID_INT64;
- case ttUInt8: return asTYPEID_UINT8;
- case ttUInt16: return asTYPEID_UINT16;
- case ttUInt: return asTYPEID_UINT32;
- case ttUInt64: return asTYPEID_UINT64;
- case ttFloat: return asTYPEID_FLOAT;
- case ttDouble: return asTYPEID_DOUBLE;
- default:
- // All types should be covered by the above. The variable type is not really a type
- asASSERT(dtIn.GetTokenType() == ttQuestion);
- return -1;
- }
- }
- int typeId = -1;
- asCTypeInfo *ot = dtIn.GetTypeInfo();
- asASSERT(ot != &functionBehaviours);
- // Object's hold the typeId themselves
- typeId = ot->typeId;
- if( typeId == -1 )
- {
- ACQUIREEXCLUSIVE(engineRWLock);
- // Make sure another thread didn't determine the typeId while we were waiting for the lock
- if( ot->typeId == -1 )
- {
- typeId = typeIdSeqNbr++;
- if( ot->flags & asOBJ_SCRIPT_OBJECT ) typeId |= asTYPEID_SCRIPTOBJECT;
- else if( ot->flags & asOBJ_TEMPLATE ) typeId |= asTYPEID_TEMPLATE;
- else if( ot->flags & asOBJ_ENUM ) {} // TODO: Should we have a specific bit for this?
- else typeId |= asTYPEID_APPOBJECT;
- ot->typeId = typeId;
- mapTypeIdToTypeInfo.Insert(typeId, ot);
- }
- RELEASEEXCLUSIVE(engineRWLock);
- }
- // Add flags according to the requested type
- if( dtIn.GetTypeInfo() && !(dtIn.GetTypeInfo()->flags & asOBJ_ASHANDLE) )
- {
- // The ASHANDLE types behave like handles, but are really
- // value types so the typeId is never returned as a handle
- if( dtIn.IsObjectHandle() )
- typeId |= asTYPEID_OBJHANDLE;
- if( dtIn.IsHandleToConst() )
- typeId |= asTYPEID_HANDLETOCONST;
- }
- return typeId;
- }
- asCDataType asCScriptEngine::GetDataTypeFromTypeId(int typeId) const
- {
- int baseId = typeId & (asTYPEID_MASK_OBJECT | asTYPEID_MASK_SEQNBR);
- if( typeId <= asTYPEID_DOUBLE )
- {
- eTokenType type[] = {ttVoid, ttBool, ttInt8, ttInt16, ttInt, ttInt64, ttUInt8, ttUInt16, ttUInt, ttUInt64, ttFloat, ttDouble};
- return asCDataType::CreatePrimitive(type[typeId], false);
- }
- // First check if the typeId is an object type
- asCTypeInfo *ot = 0;
- ACQUIRESHARED(engineRWLock);
- asSMapNode<int,asCTypeInfo*> *cursor = 0;
- if( mapTypeIdToTypeInfo.MoveTo(&cursor, baseId) )
- ot = mapTypeIdToTypeInfo.GetValue(cursor);
- RELEASESHARED(engineRWLock);
- if( ot )
- {
- asCDataType dt = asCDataType::CreateType(ot, false);
- if( typeId & asTYPEID_OBJHANDLE )
- dt.MakeHandle(true, true);
- if( typeId & asTYPEID_HANDLETOCONST )
- dt.MakeHandleToConst(true);
- return dt;
- }
- return asCDataType();
- }
- asCObjectType *asCScriptEngine::GetObjectTypeFromTypeId(int typeId) const
- {
- asCDataType dt = GetDataTypeFromTypeId(typeId);
- return CastToObjectType(dt.GetTypeInfo());
- }
- void asCScriptEngine::RemoveFromTypeIdMap(asCTypeInfo *type)
- {
- ACQUIREEXCLUSIVE(engineRWLock);
- asSMapNode<int,asCTypeInfo*> *cursor = 0;
- mapTypeIdToTypeInfo.MoveFirst(&cursor);
- while( cursor )
- {
- if(mapTypeIdToTypeInfo.GetValue(cursor) == type )
- {
- mapTypeIdToTypeInfo.Erase(cursor);
- break;
- }
- mapTypeIdToTypeInfo.MoveNext(&cursor, cursor);
- }
- RELEASEEXCLUSIVE(engineRWLock);
- }
- // interface
- asITypeInfo *asCScriptEngine::GetTypeInfoByDecl(const char *decl) const
- {
- asCDataType dt;
- // This cast is ok, because we are not changing anything in the engine
- asCBuilder bld(const_cast<asCScriptEngine*>(this), 0);
- // Don't write parser errors to the message callback
- bld.silent = true;
- int r = bld.ParseDataType(decl, &dt, defaultNamespace);
- if (r < 0)
- return 0;
- return dt.GetTypeInfo();
- }
- // interface
- int asCScriptEngine::GetTypeIdByDecl(const char *decl) const
- {
- asCDataType dt;
- // This cast is ok, because we are not changing anything in the engine
- asCBuilder bld(const_cast<asCScriptEngine*>(this), 0);
- // Don't write parser errors to the message callback
- bld.silent = true;
- int r = bld.ParseDataType(decl, &dt, defaultNamespace);
- if( r < 0 )
- return asINVALID_TYPE;
- return GetTypeIdFromDataType(dt);
- }
- // interface
- const char *asCScriptEngine::GetTypeDeclaration(int typeId, bool includeNamespace) const
- {
- asCDataType dt = GetDataTypeFromTypeId(typeId);
- asCString *tempString = &asCThreadManager::GetLocalData()->string;
- *tempString = dt.Format(defaultNamespace, includeNamespace);
- return tempString->AddressOf();
- }
- // interface
- int asCScriptEngine::GetSizeOfPrimitiveType(int typeId) const
- {
- asCDataType dt = GetDataTypeFromTypeId(typeId);
- if( !dt.IsPrimitive() ) return 0;
- return dt.GetSizeInMemoryBytes();
- }
- // interface
- int asCScriptEngine::RefCastObject(void *obj, asITypeInfo *fromType, asITypeInfo *toType, void **newPtr, bool useOnlyImplicitCast)
- {
- if( newPtr == 0 ) return asINVALID_ARG;
- *newPtr = 0;
- if( fromType == 0 || toType == 0 ) return asINVALID_ARG;
- // A null-pointer can always be cast to another type, so it will always be successful
- if( obj == 0 )
- return asSUCCESS;
- if( fromType == toType )
- {
- *newPtr = obj;
- AddRefScriptObject(*newPtr, toType);
- return asSUCCESS;
- }
- // Check for funcdefs
- if ((fromType->GetFlags() & asOBJ_FUNCDEF) && (toType->GetFlags() & asOBJ_FUNCDEF))
- {
- asCFuncdefType *fromFunc = CastToFuncdefType(reinterpret_cast<asCTypeInfo*>(fromType));
- asCFuncdefType *toFunc = CastToFuncdefType(reinterpret_cast<asCTypeInfo*>(toType));
- if (fromFunc && toFunc && fromFunc->funcdef->IsSignatureExceptNameEqual(toFunc->funcdef))
- {
- *newPtr = obj;
- AddRefScriptObject(*newPtr, toType);
- return asSUCCESS;
- }
- return asSUCCESS;
- }
- // Look for ref cast behaviours
- asCScriptFunction *universalCastFunc = 0;
- asCObjectType *from = reinterpret_cast<asCObjectType*>(fromType);
- for( asUINT n = 0; n < from->methods.GetLength(); n++ )
- {
- asCScriptFunction *func = scriptFunctions[from->methods[n]];
- if( func->name == "opImplCast" ||
- (!useOnlyImplicitCast && func->name == "opCast") )
- {
- if( func->returnType.GetTypeInfo() == toType )
- {
- *newPtr = CallObjectMethodRetPtr(obj, func->id);
- // The ref cast behaviour returns a handle with incremented
- // ref counter, so there is no need to call AddRef explicitly
- // unless the function is registered with autohandle
- if( func->sysFuncIntf->returnAutoHandle )
- AddRefScriptObject(*newPtr, toType);
- return asSUCCESS;
- }
- else if( func->returnType.GetTokenType() == ttVoid &&
- func->parameterTypes.GetLength() == 1 &&
- func->parameterTypes[0].GetTokenType() == ttQuestion )
- {
- universalCastFunc = func;
- }
- }
- }
- // One last chance if the object has a void opCast(?&out) behaviour
- if( universalCastFunc )
- {
- // TODO: Add proper error handling
- asIScriptContext *ctx = RequestContext();
- ctx->Prepare(universalCastFunc);
- ctx->SetObject(obj);
- ctx->SetArgVarType(0, newPtr, toType->GetTypeId() | asTYPEID_OBJHANDLE);
- ctx->Execute();
- ReturnContext(ctx);
- // The opCast(?&out) method already incremented the
- // refCount so there is no need to do it manually
- return asSUCCESS;
- }
- // For script classes and interfaces there is a quick route
- if( (fromType->GetFlags() & asOBJ_SCRIPT_OBJECT) && (toType->GetFlags() & asOBJ_SCRIPT_OBJECT) )
- {
- if( fromType == toType )
- {
- *newPtr = obj;
- reinterpret_cast<asCScriptObject*>(*newPtr)->AddRef();
- return asSUCCESS;
- }
- // Up casts to base class or interface can be done implicitly
- if( fromType->DerivesFrom(toType) ||
- fromType->Implements(toType) )
- {
- *newPtr = obj;
- reinterpret_cast<asCScriptObject*>(*newPtr)->AddRef();
- return asSUCCESS;
- }
- // Down casts to derived class or from interface can only be done explicitly
- if( !useOnlyImplicitCast )
- {
- // Get the true type of the object so the explicit cast can evaluate all possibilities
- asITypeInfo *trueType = reinterpret_cast<asCScriptObject*>(obj)->GetObjectType();
- if (trueType->DerivesFrom(toType) ||
- trueType->Implements(toType))
- {
- *newPtr = obj;
- reinterpret_cast<asCScriptObject*>(*newPtr)->AddRef();
- return asSUCCESS;
- }
- }
- }
- // The cast is not available, but it is still a success
- return asSUCCESS;
- }
- // interface
- void *asCScriptEngine::CreateScriptObject(const asITypeInfo *type)
- {
- if( type == 0 ) return 0;
- asCObjectType *objType = const_cast<asCObjectType*>(reinterpret_cast<const asCObjectType *>(type));
- void *ptr = 0;
- // Check that there is a default factory for ref types
- if( objType->beh.factory == 0 && (objType->flags & asOBJ_REF) )
- {
- // TODO: How to report the reason the object couldn't be created, without writing to the message callback? optional argument with return code?
- // TODO: Warn about the invalid call to message callback. Make it an optional, so the warning can be turned off
- // asCString str;
- // str.Format(TXT_FAILED_IN_FUNC_s_s_d, "CreateScriptObject", errorNames[-asNO_FUNCTION], asNO_FUNCTION);
- // WriteMessage("", 0, 0, asMSGTYPE_ERROR, str.AddressOf());
- return 0;
- }
- // Construct the object
- if( objType->flags & asOBJ_SCRIPT_OBJECT )
- {
- // Call the script class' default factory with a context
- ptr = ScriptObjectFactory(objType, this);
- }
- else if( (objType->flags & asOBJ_TEMPLATE) && (objType->flags & asOBJ_REF) )
- {
- // The registered factory that takes the object type is moved
- // to the construct behaviour when the type is instantiated
- #ifdef AS_NO_EXCEPTIONS
- ptr = CallGlobalFunctionRetPtr(objType->beh.construct, objType);
- #else
- try
- {
- ptr = CallGlobalFunctionRetPtr(objType->beh.construct, objType);
- }
- catch (...)
- {
- asCContext *ctx = reinterpret_cast<asCContext*>(asGetActiveContext());
- if (ctx)
- ctx->HandleAppException();
- }
- #endif
- }
- else if( objType->flags & asOBJ_REF )
- {
- // Call the default factory directly
- #ifdef AS_NO_EXCEPTIONS
- ptr = CallGlobalFunctionRetPtr(objType->beh.factory);
- #else
- try
- {
- ptr = CallGlobalFunctionRetPtr(objType->beh.factory);
- }
- catch(...)
- {
- asCContext *ctx = reinterpret_cast<asCContext*>(asGetActiveContext());
- if( ctx )
- ctx->HandleAppException();
- }
- #endif
- }
- else
- {
- // Make sure there is a default constructor or that it is a POD type
- if( objType->beh.construct == 0 && !(objType->flags & asOBJ_POD) )
- {
- // TODO: How to report the reason the object couldn't be created, without writing to the message callback? optional argument with return code?
- // TODO: Warn about the invalid call to message callback. Make it an optional, so the warning can be turned off
- // asCString str;
- // str.Format(TXT_FAILED_IN_FUNC_s_s_d, "CreateScriptObject", errorNames[-asNO_FUNCTION], asNO_FUNCTION);
- // WriteMessage("", 0, 0, asMSGTYPE_ERROR, str.AddressOf());
- return 0;
- }
- // Manually allocate the memory, then call the default constructor
- ptr = CallAlloc(objType);
- int funcIndex = objType->beh.construct;
- if (funcIndex)
- {
- if (objType->flags & asOBJ_TEMPLATE)
- {
- // Templates of value types create script functions as the constructors
- CallScriptObjectMethod(ptr, funcIndex);
- }
- else
- {
- #ifdef AS_NO_EXCEPTIONS
- CallObjectMethod(ptr, funcIndex);
- #else
- try
- {
- CallObjectMethod(ptr, funcIndex);
- }
- catch (...)
- {
- asCContext *ctx = reinterpret_cast<asCContext*>(asGetActiveContext());
- if (ctx)
- ctx->HandleAppException();
- // Free the memory
- CallFree(ptr);
- ptr = 0;
- }
- #endif
- }
- }
- }
- return ptr;
- }
- // internal
- int asCScriptEngine::CallScriptObjectMethod(void *obj, int funcId)
- {
- asIScriptContext *ctx = 0;
- int r = 0;
- bool isNested = false;
- // Use nested call in the context if there is an active context
- ctx = asGetActiveContext();
- if (ctx)
- {
- // It may not always be possible to reuse the current context,
- // in which case we'll have to create a new one any way.
- if (ctx->GetEngine() == this && ctx->PushState() == asSUCCESS)
- isNested = true;
- else
- ctx = 0;
- }
- if (ctx == 0)
- {
- // Request a context from the engine
- ctx = RequestContext();
- if (ctx == 0)
- {
- // TODO: How to best report this failure?
- return asERROR;
- }
- }
- r = ctx->Prepare(scriptFunctions[funcId]);
- if (r < 0)
- {
- if (isNested)
- ctx->PopState();
- else
- ReturnContext(ctx);
- // TODO: How to best report this failure?
- return asERROR;
- }
- // Set the object
- ctx->SetObject(obj);
- for (;;)
- {
- r = ctx->Execute();
- // We can't allow this execution to be suspended
- // so resume the execution immediately
- if (r != asEXECUTION_SUSPENDED)
- break;
- }
- if (r != asEXECUTION_FINISHED)
- {
- if (isNested)
- {
- ctx->PopState();
- // If the execution was aborted or an exception occurred,
- // then we should forward that to the outer execution.
- if (r == asEXECUTION_EXCEPTION)
- {
- // TODO: How to improve this exception
- ctx->SetException(TXT_EXCEPTION_IN_NESTED_CALL);
- }
- else if (r == asEXECUTION_ABORTED)
- ctx->Abort();
- }
- else
- ReturnContext(ctx);
- // TODO: How to best report the error?
- return asERROR;
- }
- if (isNested)
- ctx->PopState();
- else
- ReturnContext(ctx);
- return asSUCCESS;
- }
- // interface
- void *asCScriptEngine::CreateUninitializedScriptObject(const asITypeInfo *type)
- {
- // This function only works for script classes. Registered types cannot be created this way.
- if( type == 0 || !(type->GetFlags() & asOBJ_SCRIPT_OBJECT) )
- return 0;
- asCObjectType *objType = const_cast<asCObjectType*>(reinterpret_cast<const asCObjectType*>(type));
- // Construct the object, but do not call the actual constructor that initializes the members
- // The initialization will be done by the application afterwards, e.g. through serialization.
- asCScriptObject *obj = reinterpret_cast<asCScriptObject*>(CallAlloc(objType));
- // Pre-initialize the memory so there are no invalid pointers
- ScriptObject_ConstructUnitialized(objType, obj);
- return obj;
- }
- // interface
- void *asCScriptEngine::CreateScriptObjectCopy(void *origObj, const asITypeInfo *type)
- {
- if( origObj == 0 || type == 0 ) return 0;
- void *newObj = 0;
- const asCObjectType *ot = reinterpret_cast<const asCObjectType*>(type);
- if ((ot->flags & asOBJ_SCRIPT_OBJECT) && ot->beh.copyfactory)
- {
- // Call the script class' default factory with a context
- newObj = ScriptObjectCopyFactory(ot, origObj, this);
- }
- else if (ot->beh.copyfactory)
- {
- // Call the copy factory which will allocate the memory then copy the original object
- #ifdef AS_NO_EXCEPTIONS
- newObj = CallGlobalFunctionRetPtr(ot->beh.copyfactory, origObj);
- #else
- try
- {
- newObj = CallGlobalFunctionRetPtr(ot->beh.copyfactory, origObj);
- }
- catch (...)
- {
- asCContext *ctx = reinterpret_cast<asCContext*>(asGetActiveContext());
- if (ctx)
- ctx->HandleAppException();
- }
- #endif
- }
- else if( ot->beh.copyconstruct )
- {
- // Manually allocate the memory, then call the copy constructor
- newObj = CallAlloc(ot);
- #ifdef AS_NO_EXCEPTIONS
- CallObjectMethod(newObj, origObj, ot->beh.copyconstruct);
- #else
- try
- {
- CallObjectMethod(newObj, origObj, ot->beh.copyconstruct);
- }
- catch(...)
- {
- asCContext *ctx = reinterpret_cast<asCContext*>(asGetActiveContext());
- if( ctx )
- ctx->HandleAppException();
- // Free the memory
- CallFree(newObj);
- newObj = 0;
- }
- #endif
- }
- else
- {
- // Allocate the object and then do a value assign
- newObj = CreateScriptObject(type);
- if( newObj == 0 ) return 0;
- AssignScriptObject(newObj, origObj, type);
- }
- return newObj;
- }
- // internal
- void asCScriptEngine::ConstructScriptObjectCopy(void *mem, void *obj, asCObjectType *type)
- {
- if( type == 0 || mem == 0 || obj == 0 ) return;
- // This function is only meant to be used for value types
- asASSERT( type->flags & asOBJ_VALUE );
- // Call the copy constructor if available, else call the default constructor followed by the opAssign
- int funcIndex = type->beh.copyconstruct;
- if( funcIndex )
- {
- CallObjectMethod(mem, obj, funcIndex);
- }
- else
- {
- funcIndex = type->beh.construct;
- if( funcIndex )
- CallObjectMethod(mem, funcIndex);
- AssignScriptObject(mem, obj, type);
- }
- }
- // interface
- int asCScriptEngine::AssignScriptObject(void *dstObj, void *srcObj, const asITypeInfo *type)
- {
- // TODO: Warn about invalid call in message stream (make it optional)
- if( type == 0 || dstObj == 0 || srcObj == 0 ) return asINVALID_ARG;
- const asCObjectType *objType = reinterpret_cast<const asCObjectType*>(type);
- // If value assign for ref types has been disabled, then don't do anything if the type is a ref type
- if (ep.disallowValueAssignForRefType && (objType->flags & asOBJ_REF) && !(objType->flags & asOBJ_SCOPED))
- {
- asIScriptContext *ctx = asGetActiveContext();
- if (ctx)
- ctx->SetException("Cannot do value assignment");
- return asNOT_SUPPORTED;
- }
- // Must not copy if the opAssign is not available and the object is not a POD object
- if( objType->beh.copy )
- {
- asCScriptFunction *func = scriptFunctions[objType->beh.copy];
- if( func->funcType == asFUNC_SYSTEM )
- CallObjectMethod(dstObj, srcObj, objType->beh.copy);
- else
- {
- // Call the script class' opAssign method
- asASSERT( objType->flags & asOBJ_SCRIPT_OBJECT );
- reinterpret_cast<asCScriptObject*>(dstObj)->CopyFrom(reinterpret_cast<asCScriptObject*>(srcObj));
- }
- }
- else if( objType->size && (objType->flags & asOBJ_POD) )
- {
- memcpy(dstObj, srcObj, objType->size);
- }
- return asSUCCESS;
- }
- // interface
- void asCScriptEngine::AddRefScriptObject(void *obj, const asITypeInfo *type)
- {
- // Make sure it is not a null pointer
- if( obj == 0 || type == 0 ) return;
- const asCTypeInfo *ti = static_cast<const asCTypeInfo*>(type);
- if (ti->flags & asOBJ_FUNCDEF)
- {
- CallObjectMethod(obj, functionBehaviours.beh.addref);
- }
- else
- {
- asCObjectType *objType = CastToObjectType(const_cast<asCTypeInfo*>(ti));
- if (objType && objType->beh.addref)
- {
- // Call the addref behaviour
- CallObjectMethod(obj, objType->beh.addref);
- }
- }
- }
- // interface
- void asCScriptEngine::ReleaseScriptObject(void *obj, const asITypeInfo *type)
- {
- // Make sure it is not a null pointer
- if( obj == 0 || type == 0 ) return;
- const asCTypeInfo *ti = static_cast<const asCTypeInfo*>(type);
- if (ti->flags & asOBJ_FUNCDEF)
- {
- CallObjectMethod(obj, functionBehaviours.beh.release);
- }
- else
- {
- asCObjectType *objType = CastToObjectType(const_cast<asCTypeInfo*>(ti));
- if (objType && objType->flags & asOBJ_REF)
- {
- asASSERT((objType->flags & asOBJ_NOCOUNT) || objType->beh.release);
- if (objType->beh.release)
- {
- // Call the release behaviour
- CallObjectMethod(obj, objType->beh.release);
- }
- }
- else if( objType )
- {
- // Call the destructor
- if (objType->beh.destruct)
- CallObjectMethod(obj, objType->beh.destruct);
- else if (objType->flags & asOBJ_LIST_PATTERN)
- DestroyList((asBYTE*)obj, objType);
- // We'll have to trust that the memory for the object was allocated with CallAlloc.
- // This is true if the object was created in the context, or with CreateScriptObject.
- // Then free the memory
- CallFree(obj);
- }
- }
- }
- // interface
- int asCScriptEngine::BeginConfigGroup(const char *groupName)
- {
- // Make sure the group name doesn't already exist
- for( asUINT n = 0; n < configGroups.GetLength(); n++ )
- {
- if( configGroups[n]->groupName == groupName )
- return asNAME_TAKEN;
- }
- if( currentGroup != &defaultGroup )
- return asNOT_SUPPORTED;
- asCConfigGroup *group = asNEW(asCConfigGroup)();
- if( group == 0 )
- return asOUT_OF_MEMORY;
- group->groupName = groupName;
- configGroups.PushLast(group);
- currentGroup = group;
- return 0;
- }
- // interface
- int asCScriptEngine::EndConfigGroup()
- {
- // Raise error if trying to end the default config
- if( currentGroup == &defaultGroup )
- return asERROR;
- currentGroup = &defaultGroup;
- return 0;
- }
- // interface
- int asCScriptEngine::RemoveConfigGroup(const char *groupName)
- {
- // It is not allowed to remove a group that is still in use.
- // It would be possible to change the code in such a way that
- // the group could be removed even though it was still in use,
- // but that would cause severe negative impact on runtime
- // performance, since the VM would then have to be able handle
- // situations where the types, functions, and global variables
- // can be removed at any time.
- for( asUINT n = 0; n < configGroups.GetLength(); n++ )
- {
- if( configGroups[n]->groupName == groupName )
- {
- asCConfigGroup *group = configGroups[n];
- // Remove any unused generated template instances
- // before verifying if the config group is still in use.
- // RemoveTemplateInstanceType() checks if the instance is in use
- for( asUINT g = generatedTemplateTypes.GetLength(); g-- > 0; )
- RemoveTemplateInstanceType(generatedTemplateTypes[g]);
- // Make sure the group isn't referenced by anyone
- if( group->refCount > 0 )
- return asCONFIG_GROUP_IS_IN_USE;
- // Verify if any objects registered in this group is still alive
- if( group->HasLiveObjects() )
- return asCONFIG_GROUP_IS_IN_USE;
- // Remove the group from the list
- if( n == configGroups.GetLength() - 1 )
- configGroups.PopLast();
- else
- configGroups[n] = configGroups.PopLast();
- // Remove the configurations registered with this group
- group->RemoveConfiguration(this);
- asDELETE(group,asCConfigGroup);
- }
- }
- return 0;
- }
- asCConfigGroup *asCScriptEngine::FindConfigGroupForFunction(int funcId) const
- {
- for( asUINT n = 0; n < configGroups.GetLength(); n++ )
- {
- // Check global functions
- asUINT m;
- for( m = 0; m < configGroups[n]->scriptFunctions.GetLength(); m++ )
- {
- if( configGroups[n]->scriptFunctions[m]->id == funcId )
- return configGroups[n];
- }
- }
- return 0;
- }
- asCConfigGroup *asCScriptEngine::FindConfigGroupForGlobalVar(int gvarId) const
- {
- for( asUINT n = 0; n < configGroups.GetLength(); n++ )
- {
- for( asUINT m = 0; m < configGroups[n]->globalProps.GetLength(); m++ )
- {
- if( int(configGroups[n]->globalProps[m]->id) == gvarId )
- return configGroups[n];
- }
- }
- return 0;
- }
- asCConfigGroup *asCScriptEngine::FindConfigGroupForTypeInfo(const asCTypeInfo *objType) const
- {
- for( asUINT n = 0; n < configGroups.GetLength(); n++ )
- {
- for( asUINT m = 0; m < configGroups[n]->types.GetLength(); m++ )
- {
- if( configGroups[n]->types[m] == objType )
- return configGroups[n];
- }
- }
- return 0;
- }
- asCConfigGroup *asCScriptEngine::FindConfigGroupForFuncDef(const asCFuncdefType *funcDef) const
- {
- for( asUINT n = 0; n < configGroups.GetLength(); n++ )
- {
- asCFuncdefType *f = const_cast<asCFuncdefType*>(funcDef);
- if( configGroups[n]->types.Exists(f) )
- return configGroups[n];
- }
- return 0;
- }
- // interface
- asDWORD asCScriptEngine::SetDefaultAccessMask(asDWORD defaultMask)
- {
- asDWORD old = defaultAccessMask;
- defaultAccessMask = defaultMask;
- return old;
- }
- int asCScriptEngine::GetNextScriptFunctionId()
- {
- // This function only returns the next function id that
- // should be used. It doesn't update the internal arrays.
- if( freeScriptFunctionIds.GetLength() )
- return freeScriptFunctionIds[freeScriptFunctionIds.GetLength()-1];
- return (int)scriptFunctions.GetLength();
- }
- void asCScriptEngine::AddScriptFunction(asCScriptFunction *func)
- {
- // Update the internal arrays with the function id that is now used
- if( freeScriptFunctionIds.GetLength() && freeScriptFunctionIds[freeScriptFunctionIds.GetLength()-1] == func->id )
- freeScriptFunctionIds.PopLast();
- if( asUINT(func->id) == scriptFunctions.GetLength() )
- scriptFunctions.PushLast(func);
- else
- {
- // The slot should be empty or already set with the function, which happens if an existing shared function is reused
- asASSERT( scriptFunctions[func->id] == 0 || scriptFunctions[func->id] == func );
- scriptFunctions[func->id] = func;
- }
- }
- void asCScriptEngine::RemoveScriptFunction(asCScriptFunction *func)
- {
- if( func == 0 || func->id < 0 ) return;
- int id = func->id & ~FUNC_IMPORTED;
- if( func->funcType == asFUNC_IMPORTED )
- {
- if( id >= (int)importedFunctions.GetLength() ) return;
- if( importedFunctions[id] )
- {
- // Remove the function from the list of script functions
- if( id == (int)importedFunctions.GetLength() - 1 )
- {
- importedFunctions.PopLast();
- }
- else
- {
- importedFunctions[id] = 0;
- freeImportedFunctionIdxs.PushLast(id);
- }
- }
- }
- else
- {
- if( id >= (int)scriptFunctions.GetLength() ) return;
- asASSERT( func == scriptFunctions[id] );
- if( scriptFunctions[id] )
- {
- // Remove the function from the list of script functions
- if( id == (int)scriptFunctions.GetLength() - 1 )
- {
- scriptFunctions.PopLast();
- }
- else
- {
- scriptFunctions[id] = 0;
- freeScriptFunctionIds.PushLast(id);
- }
- // Is the function used as signature id?
- if( func->signatureId == id )
- {
- // Remove the signature id
- signatureIds.RemoveValue(func);
- // Update all functions using the signature id
- int newSigId = 0;
- for( asUINT n = 0; n < scriptFunctions.GetLength(); n++ )
- {
- if( scriptFunctions[n] && scriptFunctions[n]->signatureId == id )
- {
- if( newSigId == 0 )
- {
- newSigId = scriptFunctions[n]->id;
- signatureIds.PushLast(scriptFunctions[n]);
- }
- scriptFunctions[n]->signatureId = newSigId;
- }
- }
- }
- }
- }
- }
- // internal
- void asCScriptEngine::RemoveFuncdef(asCFuncdefType *funcdef)
- {
- funcDefs.RemoveValue(funcdef);
- }
- // interface
- int asCScriptEngine::RegisterFuncdef(const char *decl)
- {
- if( decl == 0 ) return ConfigError(asINVALID_ARG, "RegisterFuncdef", decl, 0);
- // Parse the function declaration
- asCScriptFunction *func = asNEW(asCScriptFunction)(this, 0, asFUNC_FUNCDEF);
- if( func == 0 )
- return ConfigError(asOUT_OF_MEMORY, "RegisterFuncdef", decl, 0);
- asCBuilder bld(this, 0);
- asCObjectType *parentClass = 0;
- int r = bld.ParseFunctionDeclaration(0, decl, func, false, 0, 0, defaultNamespace, 0, &parentClass);
- if( r < 0 )
- {
- // Set as dummy function before deleting
- func->funcType = asFUNC_DUMMY;
- asDELETE(func,asCScriptFunction);
- return ConfigError(asINVALID_DECLARATION, "RegisterFuncdef", decl, 0);
- }
- // Check name conflicts
- r = bld.CheckNameConflict(func->name.AddressOf(), 0, 0, defaultNamespace, true);
- if( r < 0 )
- {
- asDELETE(func,asCScriptFunction);
- return ConfigError(asNAME_TAKEN, "RegisterFuncdef", decl, 0);
- }
- func->id = GetNextScriptFunctionId();
- AddScriptFunction(func);
- asCFuncdefType *fdt = asNEW(asCFuncdefType)(this, func);
- funcDefs.PushLast(fdt); // doesn't increase refcount
- registeredFuncDefs.PushLast(fdt); // doesn't increase refcount
- allRegisteredTypes.Insert(asSNameSpaceNamePair(fdt->nameSpace, fdt->name), fdt); // constructor already set the ref count to 1
- currentGroup->types.PushLast(fdt);
- if (parentClass)
- {
- parentClass->childFuncDefs.PushLast(fdt);
- fdt->parentClass = parentClass;
- // Check if the method restricts that use of the template to value types or reference types
- if (parentClass->flags & asOBJ_TEMPLATE)
- {
- r = SetTemplateRestrictions(parentClass, func, "RegisterFuncdef", decl);
- if (r < 0)
- return r;
- }
- }
- // If parameter type from other groups are used, add references
- currentGroup->AddReferencesForFunc(this, func);
- // Return the type id as success
- return GetTypeIdFromDataType(asCDataType::CreateType(fdt, false));
- }
- // interface
- asUINT asCScriptEngine::GetFuncdefCount() const
- {
- return asUINT(registeredFuncDefs.GetLength());
- }
- // interface
- asITypeInfo *asCScriptEngine::GetFuncdefByIndex(asUINT index) const
- {
- if( index >= registeredFuncDefs.GetLength() )
- return 0;
- return registeredFuncDefs[index];
- }
- // internal
- asCFuncdefType *asCScriptEngine::FindMatchingFuncdef(asCScriptFunction *func, asCModule *module)
- {
- asCFuncdefType *funcDef = func->funcdefType;
- if (funcDef == 0)
- {
- // Check if there is any matching funcdefs already in the engine that can be reused
- for (asUINT n = 0; n < funcDefs.GetLength(); n++)
- {
- if (funcDefs[n]->funcdef->IsSignatureExceptNameEqual(func))
- {
- if (func->IsShared() && !funcDefs[n]->funcdef->IsShared())
- continue;
- funcDef = funcDefs[n];
- break;
- }
- }
- }
- if (funcDef == 0)
- {
- // Create a matching funcdef
- asCScriptFunction *fd = asNEW(asCScriptFunction)(this, 0, asFUNC_FUNCDEF);
- fd->name = func->name;
- fd->nameSpace = func->nameSpace;
- fd->SetShared(func->IsShared());
- fd->returnType = func->returnType;
- fd->parameterTypes = func->parameterTypes;
- fd->inOutFlags = func->inOutFlags;
- funcDef = asNEW(asCFuncdefType)(this, fd);
- funcDefs.PushLast(funcDef); // doesn't increase the refCount
- fd->id = GetNextScriptFunctionId();
- AddScriptFunction(fd);
- if (module)
- {
- // Add the new funcdef to the module so it will
- // be available when saving the bytecode
- funcDef->module = module;
- module->funcDefs.PushLast(funcDef); // the refCount was already accounted for in the constructor
- }
- // Observe, if the funcdef is created without informing a module a reference will be stored in the
- // engine's funcDefs array, but it will not be owned by any module. This means that it will live on
- // until the engine is released.
- }
- if (funcDef && module && funcDef->module && funcDef->module != module)
- {
- // Unless this is a registered funcDef the returned funcDef must
- // be stored as part of the module for saving/loading bytecode
- if (!module->funcDefs.Exists(funcDef))
- {
- module->funcDefs.PushLast(funcDef);
- funcDef->AddRefInternal();
- }
- else
- {
- asASSERT(funcDef->IsShared());
- }
- }
- return funcDef;
- }
- // interface
- // TODO: typedef: Accept complex types for the typedefs
- int asCScriptEngine::RegisterTypedef(const char *type, const char *decl)
- {
- if( type == 0 ) return ConfigError(asINVALID_NAME, "RegisterTypedef", type, decl);
- // Verify if the name has been registered as a type already
- // TODO: Must check against registered funcdefs too
- if( GetRegisteredType(type, defaultNamespace) )
- // Let the application recover from this error, for example if the same typedef is registered twice
- return asALREADY_REGISTERED;
- // Grab the data type
- size_t tokenLen;
- eTokenType token;
- asCDataType dataType;
- // Create the data type
- token = tok.GetToken(decl, strlen(decl), &tokenLen);
- switch(token)
- {
- case ttBool:
- case ttInt:
- case ttInt8:
- case ttInt16:
- case ttInt64:
- case ttUInt:
- case ttUInt8:
- case ttUInt16:
- case ttUInt64:
- case ttFloat:
- case ttDouble:
- if( strlen(decl) != tokenLen )
- {
- return ConfigError(asINVALID_TYPE, "RegisterTypedef", type, decl);
- }
- break;
- default:
- return ConfigError(asINVALID_TYPE, "RegisterTypedef", type, decl);
- }
- dataType = asCDataType::CreatePrimitive(token, false);
- // Make sure the name is not a reserved keyword
- token = tok.GetToken(type, strlen(type), &tokenLen);
- if( token != ttIdentifier || strlen(type) != tokenLen )
- return ConfigError(asINVALID_NAME, "RegisterTypedef", type, decl);
- asCBuilder bld(this, 0);
- int r = bld.CheckNameConflict(type, 0, 0, defaultNamespace, true);
- if( r < 0 )
- return ConfigError(asNAME_TAKEN, "RegisterTypedef", type, decl);
- // Don't have to check against members of object
- // types as they are allowed to use the names
- // Put the data type in the list
- asCTypedefType *td = asNEW(asCTypedefType)(this);
- if( td == 0 )
- return ConfigError(asOUT_OF_MEMORY, "RegisterTypedef", type, decl);
- td->flags = asOBJ_TYPEDEF;
- td->size = dataType.GetSizeInMemoryBytes();
- td->name = type;
- td->nameSpace = defaultNamespace;
- td->aliasForType = dataType;
- allRegisteredTypes.Insert(asSNameSpaceNamePair(td->nameSpace, td->name), td);
- registeredTypeDefs.PushLast(td);
- currentGroup->types.PushLast(td);
- return GetTypeIdByDecl(type);
- }
- // interface
- asUINT asCScriptEngine::GetTypedefCount() const
- {
- return asUINT(registeredTypeDefs.GetLength());
- }
- // interface
- asITypeInfo *asCScriptEngine::GetTypedefByIndex(asUINT index) const
- {
- if( index >= registeredTypeDefs.GetLength() )
- return 0;
- return registeredTypeDefs[index];
- }
- // interface
- int asCScriptEngine::RegisterEnum(const char *name)
- {
- // Check the name
- if( NULL == name )
- return ConfigError(asINVALID_NAME, "RegisterEnum", name, 0);
- // Verify if the name has been registered as a type already
- if( GetRegisteredType(name, defaultNamespace) )
- return asALREADY_REGISTERED;
- // Use builder to parse the datatype
- asCDataType dt;
- asCBuilder bld(this, 0);
- bool oldMsgCallback = msgCallback; msgCallback = false;
- int r = bld.ParseDataType(name, &dt, defaultNamespace);
- msgCallback = oldMsgCallback;
- if( r >= 0 )
- {
- // If it is not in the defaultNamespace then the type was successfully parsed because
- // it is declared in a parent namespace which shouldn't be treated as an error
- if( dt.GetTypeInfo() && dt.GetTypeInfo()->nameSpace == defaultNamespace )
- return ConfigError(asERROR, "RegisterEnum", name, 0);
- }
- // Make sure the name is not a reserved keyword
- size_t tokenLen;
- int token = tok.GetToken(name, strlen(name), &tokenLen);
- if( token != ttIdentifier || strlen(name) != tokenLen )
- return ConfigError(asINVALID_NAME, "RegisterEnum", name, 0);
- r = bld.CheckNameConflict(name, 0, 0, defaultNamespace, true);
- if( r < 0 )
- return ConfigError(asNAME_TAKEN, "RegisterEnum", name, 0);
- asCEnumType *st = asNEW(asCEnumType)(this);
- if( st == 0 )
- return ConfigError(asOUT_OF_MEMORY, "RegisterEnum", name, 0);
- asCDataType dataType;
- dataType.CreatePrimitive(ttInt, false);
- st->flags = asOBJ_ENUM | asOBJ_SHARED;
- st->size = 4;
- st->name = name;
- st->nameSpace = defaultNamespace;
- allRegisteredTypes.Insert(asSNameSpaceNamePair(st->nameSpace, st->name), st);
- registeredEnums.PushLast(st);
- currentGroup->types.PushLast(st);
- return GetTypeIdByDecl(name);
- }
- // interface
- int asCScriptEngine::RegisterEnumValue(const char *typeName, const char *valueName, int value)
- {
- // Verify that the correct config group is used
- if( currentGroup->FindType(typeName) == 0 )
- return ConfigError(asWRONG_CONFIG_GROUP, "RegisterEnumValue", typeName, valueName);
- asCDataType dt;
- int r;
- asCBuilder bld(this, 0);
- r = bld.ParseDataType(typeName, &dt, defaultNamespace);
- if( r < 0 )
- return ConfigError(r, "RegisterEnumValue", typeName, valueName);
- // Store the enum value
- asCEnumType *ot = CastToEnumType(dt.GetTypeInfo());
- if( ot == 0 )
- return ConfigError(asINVALID_TYPE, "RegisterEnumValue", typeName, valueName);
- if( NULL == valueName )
- return ConfigError(asINVALID_NAME, "RegisterEnumValue", typeName, valueName);
- asUINT tokenLen = 0;
- asETokenClass tokenClass = ParseToken(valueName, 0, &tokenLen);
- if( tokenClass != asTC_IDENTIFIER || tokenLen != strlen(valueName) )
- return ConfigError(asINVALID_NAME, "RegisterEnumValue", typeName, valueName);
- for( unsigned int n = 0; n < ot->enumValues.GetLength(); n++ )
- {
- if( ot->enumValues[n]->name == valueName )
- return ConfigError(asALREADY_REGISTERED, "RegisterEnumValue", typeName, valueName);
- }
- asSEnumValue *e = asNEW(asSEnumValue);
- if( e == 0 )
- return ConfigError(asOUT_OF_MEMORY, "RegisterEnumValue", typeName, valueName);
- e->name = valueName;
- e->value = value;
- ot->enumValues.PushLast(e);
- return asSUCCESS;
- }
- // interface
- asUINT asCScriptEngine::GetEnumCount() const
- {
- return registeredEnums.GetLength();
- }
- // interface
- asITypeInfo *asCScriptEngine::GetEnumByIndex(asUINT index) const
- {
- if( index >= registeredEnums.GetLength() )
- return 0;
- return registeredEnums[index];
- }
- // interface
- asUINT asCScriptEngine::GetObjectTypeCount() const
- {
- return asUINT(registeredObjTypes.GetLength());
- }
- // interface
- asITypeInfo *asCScriptEngine::GetObjectTypeByIndex(asUINT index) const
- {
- if( index >= registeredObjTypes.GetLength() )
- return 0;
- return registeredObjTypes[index];
- }
- // interface
- asITypeInfo *asCScriptEngine::GetTypeInfoByName(const char *name) const
- {
- asSNameSpace *ns = defaultNamespace;
- while (ns)
- {
- // Check the object types
- for (asUINT n = 0; n < registeredObjTypes.GetLength(); n++)
- {
- if (registeredObjTypes[n]->name == name &&
- registeredObjTypes[n]->nameSpace == ns)
- return registeredObjTypes[n];
- }
- // Perhaps it is a template type? In this case
- // the returned type will be the generic type
- for (asUINT n = 0; n < registeredTemplateTypes.GetLength(); n++)
- {
- if (registeredTemplateTypes[n]->name == name &&
- registeredTemplateTypes[n]->nameSpace == ns)
- return registeredTemplateTypes[n];
- }
- // Check the enum types
- for (asUINT n = 0; n < registeredEnums.GetLength(); n++)
- {
- if (registeredEnums[n]->name == name &&
- registeredEnums[n]->nameSpace == ns)
- return registeredEnums[n];
- }
- // Check the typedefs
- for (asUINT n = 0; n < registeredTypeDefs.GetLength();n++)
- {
- if (registeredTypeDefs[n]->name == name &&
- registeredTypeDefs[n]->nameSpace == ns)
- return registeredTypeDefs[n];
- }
- // Recursively search parent namespace
- ns = GetParentNameSpace(ns);
- }
- return 0;
- }
- // interface
- asITypeInfo *asCScriptEngine::GetTypeInfoById(int typeId) const
- {
- asCDataType dt = GetDataTypeFromTypeId(typeId);
- // Is the type id valid?
- if (!dt.IsValid()) return 0;
- return dt.GetTypeInfo();
- }
- // interface
- asIScriptFunction *asCScriptEngine::GetFunctionById(int funcId) const
- {
- return GetScriptFunction(funcId);
- }
- // internal
- bool asCScriptEngine::IsTemplateType(const char *name) const
- {
- // Only look in the list of template types (not instance types)
- for( unsigned int n = 0; n < registeredTemplateTypes.GetLength(); n++ )
- {
- asCObjectType *type = registeredTemplateTypes[n];
- if( type && type->name == name )
- return true;
- }
- return false;
- }
- // internal
- int asCScriptEngine::GetScriptSectionNameIndex(const char *name)
- {
- ACQUIREEXCLUSIVE(engineRWLock);
- // TODO: These names are only released when the engine is freed. The assumption is that
- // the same script section names will be reused instead of there always being new
- // names. Is this assumption valid? Do we need to add reference counting?
- // Store the script section names for future reference
- for( asUINT n = 0; n < scriptSectionNames.GetLength(); n++ )
- {
- if( scriptSectionNames[n]->Compare(name) == 0 )
- {
- RELEASEEXCLUSIVE(engineRWLock);
- return n;
- }
- }
- asCString *str = asNEW(asCString)(name);
- if( str )
- scriptSectionNames.PushLast(str);
- int r = int(scriptSectionNames.GetLength()-1);
- RELEASEEXCLUSIVE(engineRWLock);
- return r;
- }
- // interface
- void asCScriptEngine::SetEngineUserDataCleanupCallback(asCLEANENGINEFUNC_t callback, asPWORD type)
- {
- ACQUIREEXCLUSIVE(engineRWLock);
- for( asUINT n = 0; n < cleanEngineFuncs.GetLength(); n++ )
- {
- if( cleanEngineFuncs[n].type == type )
- {
- cleanEngineFuncs[n].cleanFunc = callback;
- RELEASEEXCLUSIVE(engineRWLock);
- return;
- }
- }
- SEngineClean otc = {type, callback};
- cleanEngineFuncs.PushLast(otc);
- RELEASEEXCLUSIVE(engineRWLock);
- }
- // interface
- void asCScriptEngine::SetModuleUserDataCleanupCallback(asCLEANMODULEFUNC_t callback, asPWORD type)
- {
- ACQUIREEXCLUSIVE(engineRWLock);
- for( asUINT n = 0; n < cleanModuleFuncs.GetLength(); n++ )
- {
- if( cleanModuleFuncs[n].type == type )
- {
- cleanModuleFuncs[n].cleanFunc = callback;
- RELEASEEXCLUSIVE(engineRWLock);
- return;
- }
- }
- SModuleClean otc = {type, callback};
- cleanModuleFuncs.PushLast(otc);
- RELEASEEXCLUSIVE(engineRWLock);
- }
- // interface
- void asCScriptEngine::SetContextUserDataCleanupCallback(asCLEANCONTEXTFUNC_t callback, asPWORD type)
- {
- ACQUIREEXCLUSIVE(engineRWLock);
- for( asUINT n = 0; n < cleanContextFuncs.GetLength(); n++ )
- {
- if( cleanContextFuncs[n].type == type )
- {
- cleanContextFuncs[n].cleanFunc = callback;
- RELEASEEXCLUSIVE(engineRWLock);
- return;
- }
- }
- SContextClean otc = {type, callback};
- cleanContextFuncs.PushLast(otc);
- RELEASEEXCLUSIVE(engineRWLock);
- }
- // interface
- void asCScriptEngine::SetFunctionUserDataCleanupCallback(asCLEANFUNCTIONFUNC_t callback, asPWORD type)
- {
- ACQUIREEXCLUSIVE(engineRWLock);
- for( asUINT n = 0; n < cleanFunctionFuncs.GetLength(); n++ )
- {
- if( cleanFunctionFuncs[n].type == type )
- {
- cleanFunctionFuncs[n].cleanFunc = callback;
- RELEASEEXCLUSIVE(engineRWLock);
- return;
- }
- }
- SFunctionClean otc = {type, callback};
- cleanFunctionFuncs.PushLast(otc);
- RELEASEEXCLUSIVE(engineRWLock);
- }
- // interface
- void asCScriptEngine::SetTypeInfoUserDataCleanupCallback(asCLEANTYPEINFOFUNC_t callback, asPWORD type)
- {
- ACQUIREEXCLUSIVE(engineRWLock);
- for( asUINT n = 0; n < cleanTypeInfoFuncs.GetLength(); n++ )
- {
- if( cleanTypeInfoFuncs[n].type == type )
- {
- cleanTypeInfoFuncs[n].cleanFunc = callback;
- RELEASEEXCLUSIVE(engineRWLock);
- return;
- }
- }
- STypeInfoClean otc = {type, callback};
- cleanTypeInfoFuncs.PushLast(otc);
- RELEASEEXCLUSIVE(engineRWLock);
- }
- // interface
- void asCScriptEngine::SetScriptObjectUserDataCleanupCallback(asCLEANSCRIPTOBJECTFUNC_t callback, asPWORD type)
- {
- ACQUIREEXCLUSIVE(engineRWLock);
- for( asUINT n = 0; n < cleanScriptObjectFuncs.GetLength(); n++ )
- {
- if( cleanScriptObjectFuncs[n].type == type )
- {
- cleanScriptObjectFuncs[n].cleanFunc = callback;
- RELEASEEXCLUSIVE(engineRWLock);
- return;
- }
- }
- SScriptObjClean soc = {type, callback};
- cleanScriptObjectFuncs.PushLast(soc);
- RELEASEEXCLUSIVE(engineRWLock);
- }
- // interface
- int asCScriptEngine::SetTranslateAppExceptionCallback(asSFuncPtr callback, void *param, int callConv)
- {
- #ifdef AS_NO_EXCEPTIONS
- return asNOT_SUPPORTED;
- #else
- if (callback.ptr.f.func == 0)
- {
- // Clear the callback
- translateExceptionCallback = false;
- return asSUCCESS;
- }
- // Detect the new callback
- translateExceptionCallback = true;
- translateExceptionCallbackObj = param;
- bool isObj = false;
- if ((unsigned)callConv == asCALL_GENERIC || (unsigned)callConv == asCALL_THISCALL_OBJFIRST || (unsigned)callConv == asCALL_THISCALL_OBJLAST)
- return asNOT_SUPPORTED;
- if ((unsigned)callConv >= asCALL_THISCALL)
- {
- isObj = true;
- if (param == 0)
- {
- translateExceptionCallback = false;
- return asINVALID_ARG;
- }
- }
- int r = DetectCallingConvention(isObj, callback, callConv, 0, &translateExceptionCallbackFunc);
- if (r < 0)
- translateExceptionCallback = false;
- return r;
- #endif
- }
- // internal
- asCObjectType *asCScriptEngine::GetListPatternType(int listPatternFuncId)
- {
- // Get the object type either from the constructor's object for value types
- // or from the factory's return type for reference types
- asCObjectType *ot = scriptFunctions[listPatternFuncId]->objectType;
- if( ot == 0 )
- ot = CastToObjectType(scriptFunctions[listPatternFuncId]->returnType.GetTypeInfo());
- asASSERT( ot );
- // Check if this object type already has a list pattern type
- for( asUINT n = 0; n < listPatternTypes.GetLength(); n++ )
- {
- if( listPatternTypes[n]->templateSubTypes[0].GetTypeInfo() == ot )
- return listPatternTypes[n];
- }
- // Create a new list pattern type for the given object type
- asCObjectType *lpt = asNEW(asCObjectType)(this);
- lpt->templateSubTypes.PushLast(asCDataType::CreateType(ot, false));
- lpt->flags = asOBJ_LIST_PATTERN;
- listPatternTypes.PushLast(lpt);
- return lpt;
- }
- // internal
- void asCScriptEngine::DestroyList(asBYTE *buffer, const asCObjectType *listPatternType)
- {
- asASSERT( listPatternType && (listPatternType->flags & asOBJ_LIST_PATTERN) );
- // Get the list pattern from the listFactory function
- // TODO: runtime optimize: Store the used list factory in the listPatternType itself
- // TODO: runtime optimize: Keep a flag to indicate if there is really a need to free anything
- asCObjectType *ot = CastToObjectType(listPatternType->templateSubTypes[0].GetTypeInfo());
- asCScriptFunction *listFactory = scriptFunctions[ot->beh.listFactory];
- asASSERT( listFactory );
- asSListPatternNode *node = listFactory->listPattern;
- DestroySubList(buffer, node);
- asASSERT( node->type == asLPT_END );
- }
- // internal
- void asCScriptEngine::DestroySubList(asBYTE *&buffer, asSListPatternNode *&node)
- {
- asASSERT( node->type == asLPT_START );
- int count = 0;
- node = node->next;
- while( node )
- {
- if( node->type == asLPT_REPEAT || node->type == asLPT_REPEAT_SAME )
- {
- // Align the offset to 4 bytes boundary
- if( (asPWORD(buffer) & 0x3) )
- buffer += 4 - (asPWORD(buffer) & 0x3);
- // Determine how many times the pattern repeat
- count = *(asUINT*)buffer;
- buffer += 4;
- if( count == 0 )
- {
- // Skip the sub pattern that was expected to be repeated, otherwise
- // we'll try to delete things that don't exist in the buffer
- node = node->next;
- if( node->type == asLPT_START )
- {
- int subCount = 1;
- do
- {
- node = node->next;
- if( node->type == asLPT_START )
- subCount++;
- else if( node->type == asLPT_END )
- subCount--;
- } while( subCount > 0 );
- return;
- }
- }
- }
- else if( node->type == asLPT_TYPE )
- {
- // If we're not in a repeat iteration, then only 1 value should be destroyed
- if( count <= 0 )
- count = 1;
- asCDataType dt = reinterpret_cast<asSListPatternDataTypeNode*>(node)->dataType;
- bool isVarType = dt.GetTokenType() == ttQuestion;
- while( count-- )
- {
- if( isVarType )
- {
- // Align the offset to 4 bytes boundary
- if( (asPWORD(buffer) & 0x3) )
- buffer += 4 - (asPWORD(buffer) & 0x3);
- int typeId = *(int*)buffer;
- buffer += 4;
- dt = GetDataTypeFromTypeId(typeId);
- }
- asCTypeInfo *ti = dt.GetTypeInfo();
- if( ti && (ti->flags & asOBJ_ENUM) == 0 )
- {
- // Free all instances of this type
- if( ti->flags & asOBJ_VALUE )
- {
- asUINT size = ti->GetSize();
- // Align the offset to 4 bytes boundary
- if( size >= 4 && (asPWORD(buffer) & 0x3) )
- buffer += 4 - (asPWORD(buffer) & 0x3);
- asCObjectType *ot = CastToObjectType(ti);
- if( ot && ot->beh.destruct )
- {
- // Only call the destructor if the object has been created
- // We'll assume the object has been created if any byte in
- // the memory is different from 0.
- // TODO: This is not really correct, as bytes may have been
- // modified by the constructor, but then an exception
- // thrown aborting the initialization. The engine
- // really should be keeping track of which objects has
- // been successfully initialized.
- for( asUINT n = 0; n < size; n++ )
- {
- if( buffer[n] != 0 )
- {
- void *ptr = (void*)buffer;
- CallObjectMethod(ptr, ot->beh.destruct);
- break;
- }
- }
- }
- // Advance the pointer in the buffer
- buffer += size;
- }
- else
- {
- // Align the offset to 4 bytes boundary
- if( asPWORD(buffer) & 0x3 )
- buffer += 4 - (asPWORD(buffer) & 0x3);
- // Call the release behaviour
- void *ptr = *(void**)buffer;
- if( ptr )
- ReleaseScriptObject(ptr, ti);
- buffer += AS_PTR_SIZE*4;
- }
- }
- else
- {
- asUINT size = dt.GetSizeInMemoryBytes();
- // Align the offset to 4 bytes boundary
- if( size >= 4 && (asPWORD(buffer) & 0x3) )
- buffer += 4 - (asPWORD(buffer) & 0x3);
- // Advance the buffer
- buffer += size;
- }
- }
- }
- else if( node->type == asLPT_START )
- {
- // If we're not in a repeat iteration, then only 1 value should be destroyed
- if( count <= 0 )
- count = 1;
- while( count-- )
- {
- asSListPatternNode *subList = node;
- DestroySubList(buffer, subList);
- asASSERT( subList->type == asLPT_END );
- if( count == 0 )
- node = subList;
- }
- }
- else if( node->type == asLPT_END )
- {
- return;
- }
- else
- {
- asASSERT( false );
- }
- node = node->next;
- }
- }
- // internal
- asSNameSpace *asCScriptEngine::GetParentNameSpace(asSNameSpace *ns) const
- {
- if( ns == 0 ) return 0;
- if( ns == nameSpaces[0] ) return 0;
- asCString scope = ns->name;
- int pos = scope.FindLast("::");
- if( pos >= 0 )
- {
- scope = scope.SubString(0, pos);
- return FindNameSpace(scope.AddressOf());
- }
- return nameSpaces[0];
- }
- END_AS_NAMESPACE
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