summaryrefslogtreecommitdiffstats
path: root/squirrel_3_0_1_stable/sqplus/SqPlus.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'squirrel_3_0_1_stable/sqplus/SqPlus.cpp')
-rw-r--r--squirrel_3_0_1_stable/sqplus/SqPlus.cpp382
1 files changed, 382 insertions, 0 deletions
diff --git a/squirrel_3_0_1_stable/sqplus/SqPlus.cpp b/squirrel_3_0_1_stable/sqplus/SqPlus.cpp
new file mode 100644
index 000000000..a2eaacb72
--- /dev/null
+++ b/squirrel_3_0_1_stable/sqplus/SqPlus.cpp
@@ -0,0 +1,382 @@
+#include "sqplus.h"
+#include <stdio.h>
+
+#ifdef SQPLUS_SMARTPOINTER_OPT
+#define SQPLUS_SMARTPOINTER_CPP_DECLARATION
+#include "SqPlusSmartPointer.h"
+#endif
+
+namespace SqPlus {
+
+static int getVarInfo(StackHandler & sa,VarRefPtr & vr) {
+ HSQOBJECT htable = sa.GetObjectHandle(1);
+ SquirrelObject table(htable);
+ const SQChar * el = sa.GetString(2);
+ ScriptStringVar256 varNameTag;
+ getVarNameTag(varNameTag,sizeof(varNameTag),el);
+ SQUserPointer data=0;
+ if (!table.RawGetUserData(varNameTag,&data)) {
+ return sa.ThrowError(_SC("getVarInfo: Could not retrieve UserData")); // Results in variable not being found error.
+ }
+ vr = (VarRefPtr)data;
+ return SQ_OK;
+} // getVarInfo
+
+static int getInstanceVarInfo(StackHandler & sa,VarRefPtr & vr,SQUserPointer & data) {
+ HSQOBJECT ho = sa.GetObjectHandle(1);
+ SquirrelObject instance(ho);
+ const SQChar * el = sa.GetString(2);
+ ScriptStringVar256 varNameTag;
+ getVarNameTag(varNameTag,sizeof(varNameTag),el);
+ SQUserPointer ivrData=0;
+ if (!instance.RawGetUserData(varNameTag,&ivrData)) {
+ return sa.ThrowError(_SC("getInstanceVarInfo: Could not retrieve UserData")); // Results in variable not being found error.
+ }
+ vr = (VarRefPtr)ivrData;
+
+ char * up;
+ if (!(vr->m_access & (VAR_ACCESS_STATIC|VAR_ACCESS_CONSTANT))) {
+ SQUserPointer typetag;
+ instance.GetTypeTag(&typetag);
+
+#if defined(SQ_USE_CLASS_INHERITANCE)
+ if (typetag != vr->instanceType) {
+ SquirrelObject typeTable = instance.GetValue(SQ_CLASS_OBJECT_TABLE_NAME);
+ up = (char *)typeTable.GetUserPointer(INT((size_t)vr->instanceType)); // <TODO> 64-bit compatible version.
+ if (!up) {
+ throw SquirrelError(_SC("Invalid Instance Type"));
+ }
+ } else {
+ up = (char *)instance.GetInstanceUP(0);
+ } // if
+
+#elif defined(SQ_USE_CLASS_INHERITANCE_SIMPLE)
+ ClassTypeBase *ctb = (ClassTypeBase*)vr->instanceType;
+ up = (char *)instance.GetInstanceUP(0);
+ // Walk base classes until type tag match, adjust for inheritence offset
+ while(ctb && typetag!=ctb) {
+ up = (char*)up - ctb->m_offset;
+ ctb = ctb->m_pbase;
+ }
+ if (!ctb) {
+ throw SquirrelError(_SC("Invalid Instance Type"));
+ }
+#else
+ up = (char *)instance.GetInstanceUP(0);
+#endif
+
+#ifdef SQPLUS_SMARTPOINTER_OPT
+#define SQPLUS_SMARTPOINTER_INSTANCE_VARINFO
+#include "SqPlusSmartPointer.h"
+#endif
+
+ up += (size_t)vr->offsetOrAddrOrConst; // Offset
+ } else {
+ up = (char *)vr->offsetOrAddrOrConst; // Address
+ } // if
+ data = up;
+ return SQ_OK;
+} // getInstanceVarInfo
+
+
+// If not static/global, message can (and will) disappear before arriving at catch (G++)
+static ScriptStringVar256 g_msg_throw;
+
+static int setVar(StackHandler & sa,VarRef * vr,void * data) {
+ if (vr->m_access & (VAR_ACCESS_READ_ONLY|VAR_ACCESS_CONSTANT)) {
+ const SQChar * el = sa.GetString(2);
+ SCSNPRINTF(g_msg_throw.s,sizeof(g_msg_throw),_SC("setVar(): Cannot write to constant: %s"),el);
+ throw SquirrelError(g_msg_throw.s);
+ } // if
+ switch (vr->m_type) {
+ case TypeInfo<INT>::TypeID: {
+ INT * val = (INT *)data; // Address
+ if (val) {
+ INT v = sa.GetInt(3);
+ // Support for different int sizes
+ switch( vr->m_size ) {
+ case 1: v = (*(char*)val = (char)v); break;
+ case 2: v = (*(short*)val = (short)v); break;
+#ifdef _SQ64
+ case 4: v = (*(int*)val = (int)v); break;
+#endif
+ default: *val = v;
+ }
+ return sa.Return(v);
+ } // if
+ break;
+ } // case
+ case TypeInfo<unsigned>::TypeID: {
+ unsigned * val = (unsigned *)data; // Address
+ if (val) {
+ *val = sa.GetInt(3);
+ return sa.Return(static_cast<INT>(*val));
+ } // if
+ break;
+ } // case
+ case TypeInfo<FLOAT>::TypeID: {
+ FLOAT * val = (FLOAT *)data; // Address
+ if (val) {
+ *val = sa.GetFloat(3);
+ return sa.Return(*val);
+ } // if
+ break;
+ } // case
+ case TypeInfo<bool>::TypeID: {
+ bool * val = (bool *)data; // Address
+ if (val) {
+ *val = sa.GetBool(3) ? true : false;
+ return sa.Return(*val);
+ } // if
+ break;
+ } // case
+ case VAR_TYPE_INSTANCE: {
+ HSQUIRRELVM v = sa.GetVMPtr();
+ SQUserPointer src = sa.GetInstanceUp(3,(SQUserPointer)vr->varType); // Effectively performs: ClassType<>::type() == ClassType<>().
+ if (!src) {
+ throw SquirrelError(_SC("INSTANCE type assignment mismatch"));
+ }
+ vr->varType->vgetCopyFunc()(data,src);
+ return 0;
+ }
+ case TypeInfo<SQUserPointer>::TypeID: {
+ const SQChar * el = sa.GetString(2);
+ SCSNPRINTF(g_msg_throw.s,sizeof(g_msg_throw),_SC("setVar(): Cannot write to an SQUserPointer: %s"),el);
+ throw SquirrelError(g_msg_throw.s);
+ } // case
+ case TypeInfo<ScriptStringVarBase>::TypeID: {
+ ScriptStringVarBase * val = (ScriptStringVarBase *)data; // Address
+ if (val) {
+ const SQChar * strVal = sa.GetString(3);
+ if (strVal) {
+ *val = strVal;
+ return sa.Return(val->s);
+ } // if
+ } // if
+ break;
+ } // case
+#if defined(SQPLUS_SUPPORT_STD_STRING) && !defined(SQUNICODE)
+ case TypeInfo<std::string>::TypeID: {
+ std::string *val = (std::string*)data; // Address
+ if (val) {
+ const SQChar *strVal = sa.GetString(3);
+ if (strVal) {
+ *val = strVal;
+ return sa.Return(val->c_str());
+ } // if
+ } // if
+ break;
+ } // case
+#endif
+ } // switch
+ return SQ_ERROR;
+} // setVar
+
+static int getVar(StackHandler & sa,VarRef * vr,void * data) {
+ switch (vr->m_type) {
+ case TypeInfo<INT>::TypeID: {
+ if (!(vr->m_access & VAR_ACCESS_CONSTANT)) {
+ if (data) {
+ INT v;
+ // Support for different int sizes
+ switch( vr->m_size ){
+ case 1: v = *(char*)data; break;
+ case 2: v = *(short*)data; break;
+#ifdef _SQ64
+ case 4: v = *(int*)data; break;
+#endif
+ default: v = *(INT*)data;
+ }
+ return sa.Return(v);
+ } // if
+ } else {
+ INT * val = (INT *)&data; // Constant value
+ return sa.Return(*val);
+ } // if
+ break;
+ } // case
+ case TypeInfo<unsigned>::TypeID: {
+ if (!(vr->m_access & VAR_ACCESS_CONSTANT)) {
+ unsigned * val = (unsigned *)data; // Address
+ if (val){
+ return sa.Return(static_cast<INT>(*val));
+ }
+ } else {
+ unsigned * val = (unsigned *)&data; // Constant value
+ return sa.Return(static_cast<INT>(*val));
+ } // if
+ break;
+ } // case
+ case TypeInfo<FLOAT>::TypeID: {
+ if (!(vr->m_access & VAR_ACCESS_CONSTANT)) {
+ FLOAT * val = (FLOAT *)data; // Address
+ if (val) {
+ return sa.Return(*val);
+ } // if
+ } else {
+ FLOAT * val = (FLOAT *)&data; // Constant value
+ return sa.Return(*val);
+ } // if
+ break;
+ } // case
+ case TypeInfo<bool>::TypeID: {
+ if (!(vr->m_access & VAR_ACCESS_CONSTANT)) {
+ bool * val = (bool *)data; // Address
+ if (val) {
+ return sa.Return(*val);
+ } // if
+ } else {
+ bool * val = (bool *)&data; // Constant value
+ return sa.Return(*val);
+ } // if
+ break;
+ } // case
+ case VAR_TYPE_INSTANCE:
+ if (!CreateNativeClassInstance(sa.GetVMPtr(),vr->varType->GetTypeName(),data,0)) { // data = address. Allocates memory.
+ SCSNPRINTF(g_msg_throw.s,sizeof(g_msg_throw),_SC("getVar(): Could not create instance: %s"),vr->varType->GetTypeName());
+ throw SquirrelError(g_msg_throw.s);
+ } // if
+ return 1;
+ case TypeInfo<SQUserPointer>::TypeID:
+ return sa.Return(data); // The address of member variable, not the variable itself.
+ case TypeInfo<ScriptStringVarBase>::TypeID: {
+ if (!(vr->m_access & VAR_ACCESS_CONSTANT)) {
+ ScriptStringVarBase * val = (ScriptStringVarBase *)data; // Address
+ if (val) {
+ return sa.Return(val->s);
+ } // if
+ } else {
+ throw SquirrelError(_SC("getVar(): Invalid type+access: 'ScriptStringVarBase' with VAR_ACCESS_CONSTANT (use VAR_ACCESS_READ_ONLY instead)"));
+ }
+ break;
+ } // case
+ case TypeInfo<const SQChar *>::TypeID: {
+ if (!(vr->m_access & VAR_ACCESS_CONSTANT)) {
+ if( vr->m_access==VAR_ACCESS_READ_WRITE )
+ throw SquirrelError(_SC("getVar(): Invalid type+access: 'const SQChar *' without VAR_ACCESS_CONSTANT"));
+ // It is OK to read from a SQChar* if requested
+ return sa.Return(*(const SQChar **)data); // Address
+ } else {
+ return sa.Return((const SQChar *)data); // Address
+ }
+ break;
+ } // case
+#ifdef SQPLUS_SUPPORT_STD_STRING
+ case TypeInfo<std::string>::TypeID: {
+ if (!(vr->m_access & VAR_ACCESS_CONSTANT)) {
+ std::string *val = (std::string *)data; // Address
+ if (val) {
+ return sa.Return(val->c_str());
+ }
+ } else {
+ throw SquirrelError(_SC("getVar(): Invalid type+access: 'std::string' with VAR_ACCESS_CONSTANT (use VAR_ACCESS_READ_ONLY instead)"));
+ }
+ break;
+ } // case
+#endif
+ } // switch
+ return SQ_ERROR;
+} // getVar
+
+// === Global Vars ===
+
+int setVarFunc(HSQUIRRELVM v) {
+ SquirrelVM::Init(v); // For handling multi-VM setting right
+ StackHandler sa(v);
+ if (sa.GetType(1) == OT_TABLE) {
+ VarRefPtr vr;
+ int res = getVarInfo(sa,vr);
+ if (res != SQ_OK) return res;
+ return setVar(sa,vr,vr->offsetOrAddrOrConst);
+ } // if
+ return SQ_ERROR;
+} // setVarFunc
+
+int getVarFunc(HSQUIRRELVM v) {
+ SquirrelVM::Init(v); // For handling multi-VM setting right
+ StackHandler sa(v);
+ if (sa.GetType(1) == OT_TABLE) {
+ VarRefPtr vr;
+ int res = getVarInfo(sa,vr);
+ if (res != SQ_OK) return res;
+ return getVar(sa,vr,vr->offsetOrAddrOrConst);
+ } // if
+ return SQ_ERROR;
+} // getVarFunc
+
+// === Instance Vars ===
+
+int setInstanceVarFunc(HSQUIRRELVM v) {
+ SquirrelVM::Init(v); // For handling multi-VM setting right
+ StackHandler sa(v);
+ if (sa.GetType(1) == OT_INSTANCE) {
+ VarRefPtr vr;
+ void * data;
+ int res = getInstanceVarInfo(sa,vr,data);
+ if (res != SQ_OK) return res;
+ return setVar(sa,vr,data);
+ } // if
+ return SQ_ERROR;
+} // setInstanceVarFunc
+
+int getInstanceVarFunc(HSQUIRRELVM v) {
+ SquirrelVM::Init(v); // For handling multi-VM setting right
+ StackHandler sa(v);
+ if (sa.GetType(1) == OT_INSTANCE) {
+ VarRefPtr vr;
+ void * data;
+ int res = getInstanceVarInfo(sa,vr,data);
+ if (res != SQ_OK) return res;
+ return getVar(sa,vr,data);
+ } // if
+ return SQ_ERROR;
+} // getInstanceVarFunc
+
+// === Classes ===
+
+BOOL CreateClass(HSQUIRRELVM v,SquirrelObject & newClass,SQUserPointer classType,const SQChar * name,const SQChar * baseName) {
+ int n = 0;
+ int oldtop = sq_gettop(v);
+ sq_pushroottable(v);
+ sq_pushstring(v,name,-1);
+ if (baseName) {
+ sq_pushstring(v,baseName,-1);
+ if (SQ_FAILED(sq_get(v,-3))) { // Make sure the base exists if specified by baseName.
+ sq_settop(v,oldtop);
+ return FALSE;
+ } // if
+ } // if
+ if (SQ_FAILED(sq_newclass(v,baseName ? 1 : 0))) { // Will inherit from base class on stack from sq_get() above.
+ sq_settop(v,oldtop);
+ return FALSE;
+ } // if
+ newClass.AttachToStackObject(-1);
+ sq_settypetag(v,-1,classType);
+ sq_createslot(v,-3);
+ sq_pop(v,1);
+ return TRUE;
+} // CreateClass
+
+SquirrelObject RegisterClassType(HSQUIRRELVM v,const SQChar * scriptClassName,SQUserPointer classType,SQFUNCTION constructor) {
+ SquirrelVM::Init(v); // For handling multi-VM setting right
+ int top = sq_gettop(v);
+ SquirrelObject newClass;
+ if (CreateClass(v,newClass,classType,scriptClassName)) {
+ SquirrelVM::CreateFunction(newClass,constructor,_SC("constructor"));
+ } // if
+ sq_settop(v,top);
+ return newClass;
+} // RegisterClassType
+
+
+///////////////////////////////////////////////////////////////////////////
+// GCC sometimes has problems with finding inline functions at link time
+// (that also have a template definition). To solve the problem,
+// non-inlines goes here.
+#ifdef GCC_INLINE_WORKAROUND
+# include "SqPlusFunctionCallImpl.h"
+#endif // GCC_INLINE_WORKAROUND
+///////////////////////////////////////////////////////////////////////////
+
+} // namespace SqPlus
+