void ring_parser_icg_newoperandpointer ( Parser *pParser , void *pValue )
{
assert(pParser != NULL);
assert(pParser->ActiveGenCodeList);
ring_list_addpointer(pParser->ActiveGenCodeList,pValue);
#if RING_SHOWIC
printf( " Operand : %p ",pValue ) ;
#endif
}
void ring_vm_jumpvarlenum ( VM *pVM )
{
List *pVar ;
double nNum1,nNum2 ;
if ( ring_vm_findvar(pVM, RING_VM_IR_READC ) == 0 ) {
ring_vm_newvar(pVM, RING_VM_IR_READC);
}
nNum1 = ring_list_getdouble(pVM->aForStep,ring_list_getsize(pVM->aForStep));
/* Change Instruction for Performance */
if ( pVM->nVarScope == RING_VARSCOPE_GLOBAL ) {
/* Replace JumpVarLENum with JumpVarPLENum for better performance */
if ( nNum1 == 1.0 ) {
RING_VM_IR_OPCODE = ICO_JUMPVARPLENUMSTEP1 ;
} else {
RING_VM_IR_OPCODE = ICO_JUMPVARPLENUM ;
}
ring_item_setpointer(RING_VM_IR_ITEM(1),RING_VM_STACK_READP);
}
else if ( pVM->nVarScope == RING_VARSCOPE_LOCAL ) {
/* Replace JumpVarLENum with JumpVarLPLENum for better performance */
RING_VM_IR_OPCODE = ICO_JUMPVARLPLENUM ;
ring_item_setpointer(RING_VM_IR_ITEM(4),RING_VM_STACK_READP);
ring_item_setint(RING_VM_IR_ITEM(5),ring_list_getint(pVM->aScopeID,ring_list_getsize(pVM->aScopeID)));
#if RING_SHOWICFINAL
RING_VM_IR_PARACOUNT = RING_VM_IR_PARACOUNT + 2 ;
ring_list_addpointer(RING_VM_IR_LIST,RING_VM_STACK_READP);
ring_list_addint(RING_VM_IR_LIST,ring_list_getint(pVM->aScopeID,ring_list_getsize(pVM->aScopeID)));
#endif
}
pVar = (List *) RING_VM_STACK_READP ;
RING_VM_STACK_POP ;
/* Check Data */
if ( ring_list_isstring(pVar,RING_VAR_VALUE) ) {
nNum2 = ring_vm_stringtonum(pVM,ring_list_getstring(pVar,RING_VAR_VALUE));
ring_list_setdouble(pVar,RING_VAR_VALUE,nNum2);
}
else if ( ring_list_isnumber(pVar,RING_VAR_VALUE) ) {
nNum2 = ring_list_getdouble(pVar,RING_VAR_VALUE) ;
} else {
ring_vm_error(pVM,RING_VM_ERROR_FORLOOPDATATYPE);
return ;
}
if ( nNum1 < 0 ) {
if ( ! (nNum2 >= RING_VM_IR_READDVALUE(2)) ) {
/* Jump */
pVM->nPC = RING_VM_IR_READIVALUE(3) ;
}
} else {
if ( ! (nNum2 <= RING_VM_IR_READDVALUE(2)) ) {
/* Jump */
pVM->nPC = RING_VM_IR_READIVALUE(3) ;
}
}
}
void ring_vm_addnewcpointervar ( VM *pVM,const char *cStr,void *pPointer,const char *cStr2 )
{
List *pList, *pList2 ;
pList = ring_vm_newvar2(cStr,pVM->pActiveMem);
ring_list_setint(pList,RING_VAR_TYPE,RING_VM_LIST);
ring_list_setlist(pList,RING_VAR_VALUE);
pList2 = ring_list_getlist(pList,RING_VAR_VALUE);
/* Add Pointer */
ring_list_addpointer(pList2,pPointer);
/* Add Type */
ring_list_addstring(pList2,cStr2);
/* Add Status Number */
ring_list_addint(pList2,RING_CPOINTERSTATUS_NOTCOPIED);
}
void ring_vm_loadfuncp ( VM *pVM )
{
List *pList ;
pVM->nFuncExecute++ ;
pVM->nFuncExecute2++ ;
pList = ring_list_newlist(pVM->pFuncCallList);
ring_list_addint(pList,RING_VM_IR_READIVALUE(3));
ring_list_addstring(pList,RING_VM_IR_READC);
ring_list_addint(pList,RING_VM_IR_READIVALUE(2));
ring_list_addint(pList,pVM->nSP);
ring_list_newlist(pList);
ring_list_addpointer(pList,pVM->cFileName);
pVM->cFileName = (char *) RING_VM_IR_READPVALUE(4) ;
ring_list_addint(pList,RING_VM_IR_READIVALUE(5));
ring_vm_saveloadaddressscope(pVM);
}
int ring_objfile_readfile ( const char *cFileName,RingState *pRingState )
{
FILE *fObj;
signed char c ;
List *pListFunctions, *pListClasses, *pListPackages, *pListCode, *pList, *pListStack ;
int nActiveList,nValue,nBraceEnd ;
double dValue ;
char *cString ;
char cKey[11] ;
char cFileType[100] ;
strcpy(cKey,"ringstring");
/* Create Lists */
pListFunctions = ring_list_new(0);
pListClasses = ring_list_new(0);
pListPackages = ring_list_new(0);
pListCode = ring_list_new(0);
pListStack = ring_list_new(0);
pList = NULL ;
/* Set Active List (1=functions 2=classes 3=packages 4=code) */
nActiveList = 0 ;
nBraceEnd = 0 ;
/* Open File */
fObj = fopen(cFileName , "rb" );
if ( fObj==NULL ) {
printf( "Can't open file %s \n ",cFileName ) ;
return 0 ;
}
fread( cFileType , 1 , 18 , fObj );
cFileType[18] = '\0' ;
if ( strcmp(cFileType,"# Ring Object File") != 0 ) {
printf( "The file type is not correct - the VM expect a ring object file\n" ) ;
return 0 ;
}
c = getc(fObj);
fread( cFileType , 1 , 13 , fObj );
cFileType[13] = '\0' ;
if ( strcmp(cFileType,"# Version 1.1") != 0 ) {
printf( "The file version is not correct - the VM expect a ring object file version 1.1\n" ) ;
return 0 ;
}
/* Process File */
c = getc(fObj);
while ( c != EOF ) {
/* Check Char */
switch ( c ) {
case '#' :
/* Read Line */
while ( c != '\n' ) {
c = getc(fObj);
#ifdef DEBUG_OBJFILE
printf( "%c ",c ) ;
#endif
}
#ifdef DEBUG_OBJFILE
puts("Read Comment ! ");
#endif
break ;
case '{' :
nActiveList++ ;
switch ( nActiveList ) {
case 1 :
pList = pListFunctions ;
break ;
case 2 :
pList = pListClasses ;
break ;
case 3 :
pList = pListPackages ;
break ;
case 4 :
pList = pListCode ;
break ;
}
break ;
case '[' :
c = getc(fObj);
switch ( c ) {
case 'S' :
c = getc(fObj);
fscanf( fObj , "[%d]" , &nValue ) ;
cString = (char *) malloc(nValue+1) ;
fread( cString , 1 , nValue , fObj );
cString[nValue] = '\0' ;
/* Decrypt String */
ring_objfile_xorstring(cString,nValue,cKey,10);
ring_list_addstring2(pList,cString,nValue);
free( cString ) ;
#ifdef DEBUG_OBJFILE
printf( "Read String %s Size %d \n",cString,nValue ) ;
#endif
break ;
case 'I' :
c = getc(fObj);
fscanf( fObj , "%d" , &nValue ) ;
ring_list_addint(pList,nValue);
#ifdef DEBUG_OBJFILE
printf( "Read Number %d \n ",nValue ) ;
#endif
break ;
case 'D' :
c = getc(fObj);
fscanf( fObj , "%lf" , &dValue ) ;
ring_list_adddouble(pList,dValue);
#ifdef DEBUG_OBJFILE
printf( "Read Double %d \n",dValue ) ;
#endif
break ;
case 'P' :
ring_list_addpointer(pList,NULL);
/* Read Line */
while ( c != '\n' ) {
c = getc(fObj);
}
#ifdef DEBUG_OBJFILE
puts("Read Pointer ");
#endif
break ;
case 'T' :
ring_list_addpointer(pListStack,pList);
pList = ring_list_newlist(pList);
/* Read Line */
while ( c != '\n' ) {
c = getc(fObj);
}
#ifdef DEBUG_OBJFILE
puts("Read T ");
#endif
break ;
case 'E' :
pList = (List *) ring_list_getpointer(pListStack,ring_list_getsize(pListStack)) ;
ring_list_deletelastitem(pListStack);
/* Read Line */
while ( c != '\n' ) {
c = getc(fObj);
}
#ifdef DEBUG_OBJFILE
puts("Read E ");
#endif
break ;
case 'L' :
/* Read Until { */
while ( c != '{' ) {
c = getc(fObj);
}
ring_list_addpointer(pListStack,pList);
pList = ring_list_newlist(pList);
nBraceEnd = 1 ;
#ifdef DEBUG_OBJFILE
puts("Read L ");
#endif
break ;
}
break ;
case '}' :
if ( nBraceEnd ) {
pList = (List *) ring_list_getpointer(pListStack,ring_list_getsize(pListStack)) ;
ring_list_deletelastitem(pListStack);
nBraceEnd = 0 ;
#ifdef DEBUG_OBJFILE
puts("Read } ");
#endif
}
break ;
}
c = getc(fObj);
}
/* Close File */
fclose( fObj ) ;
ring_list_delete(pListStack);
/* Update Ring State */
#ifdef DEBUG_OBJFILE
puts("Old Code List ");
ring_list_print(pRingState->pRingGenCode);
#endif
/* Update Lists */
pRingState->pRingFunctionsMap = pListFunctions ;
pRingState->pRingClassesMap = pListClasses ;
pRingState->pRingPackagesMap = pListPackages ;
pRingState->pRingGenCode = pListCode ;
#ifdef DEBUG_OBJFILE
puts("Update Done! ");
puts("New Code List ");
ring_list_print(pRingState->pRingGenCode);
#endif
/* Update Classes Pointers */
ring_objfile_updateclassespointers(pRingState);
return 1 ;
}
void ring_parser_icg_addoperandpointer ( List *pList , void *pValue )
{
assert(pList != NULL);
ring_list_addpointer(pList,pValue);
}
int ring_parser_class ( Parser *pParser )
{
List *pList,*pList2,*pList3 ;
int x ;
String *pString ;
/* Statement --> Class Identifier [ From Identifier ] */
if ( ring_parser_iskeyword(pParser,K_CLASS) ) {
ring_parser_nexttoken(pParser);
if ( ring_parser_isidentifier(pParser) ) {
/*
** Generate Code
** Return NULL
*/
ring_parser_icg_newoperation(pParser,ICO_RETNULL);
ring_parser_icg_newoperation(pParser,ICO_NEWCLASS);
ring_parser_icg_newoperand(pParser,pParser->TokenText);
/* Add Class to Classes Table */
pList = pParser->ClassesMap ;
pList = ring_list_newlist(pList);
ring_list_addstring(pList,pParser->TokenText);
ring_list_addint(pList,ring_list_getsize(pParser->GenCode));
/* Add class pointer to generated code */
ring_parser_icg_newoperandpointer(pParser,pList);
ring_parser_nexttoken(pParser);
/* [From Identifer] */
if ( ring_parser_iskeyword(pParser,K_FROM) ) {
ring_parser_nexttoken(pParser);
if ( ring_parser_namedotname(pParser) ) {
/* Generate Code */
pList3 = ring_parser_icg_getactiveoperation(pParser);
/* Check if parent class name = subclass name */
if ( strcmp(ring_list_getstring(pList,1),ring_list_getstring(pList3,4)) == 0 ) {
ring_parser_error(pParser,RING_PARSER_ERROR_PARENTLIKESUBCLASS);
return 0 ;
}
/* Set Parent Class Name in Classes Map */
ring_list_addstring(pList,ring_list_getstring(pList3,4));
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Class' Identifier 'From' [PackageName'.']Identifier");
#endif
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_PRENTCLASSNAME);
return 0 ;
}
} else {
/* Set Parent Class Name In Classes Map */
ring_list_addstring(pList,"");
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Class' Identifier ");
#endif
}
/* Add Method/Functions List to Class in Class Table */
pList2 = ring_list_newlist(pList);
/* Add Flag ( IS Parent Class information collected ) */
ring_list_addint(pList,0);
/* Set Active Functions List to be Class Methods */
pParser->FunctionsMap = pList2 ;
/* Make class visible using PackageName.ClassName if we have package */
if ( pParser->ClassesMap != pParser->pRingState->pRingClassesMap ) {
/* Get Package Name */
pList3 = ring_list_getlist(pParser->pRingState->pRingPackagesMap,ring_list_getsize(pParser->pRingState->pRingPackagesMap));
pString = ring_string_new(ring_list_getstring(pList3,1));
/* Add pointer to the Package in the Class List */
ring_list_addpointer(pList,pList3);
/* Add List point to General Classes point to the class in the package */
pList2 = ring_list_newlist(pParser->pRingState->pRingClassesMap);
ring_list_addstring(pList2,"");
ring_list_addpointer(pList2,pList);
/* Ignore Adding Pointer to File Name */
ring_list_addpointer(pList2,NULL);
/* Add Class Name to Package Name */
ring_string_add(pString,".");
ring_string_add(pString,ring_list_getstring(pList,1));
ring_list_setstring(pList2,1,ring_string_get(pString));
ring_string_delete(pString);
} else {
/* Add pointer to the Package in the Class List */
ring_list_addpointer(pList,NULL);
}
pParser->nClassStart = 1 ;
/* Create label to be used by Private */
pParser->nClassMark = ring_parser_icg_newlabel2(pParser);
pParser->nPrivateFlag = 0 ;
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_CLASSNAME);
return 0 ;
}
}
/* Statement --> Func Identifier [PARALIST] */
if ( ring_parser_iskeyword(pParser,K_FUNC) ) {
ring_parser_nexttoken(pParser);
if ( ring_parser_isidentifier(pParser) ) {
/*
** Generate Code
** Return NULL
*/
ring_parser_icg_newoperation(pParser,ICO_RETNULL);
ring_parser_icg_newoperation(pParser,ICO_NEWFUNC);
ring_parser_icg_newoperand(pParser,pParser->TokenText);
/* Add function to Functions Table */
pList2 = pParser->FunctionsMap ;
/* Check Function Redefinition */
if ( ring_list_getsize(pList2) > 0 ) {
for ( x = 1 ; x <= ring_list_getsize(pList2) ; x++ ) {
if ( strcmp(ring_list_getstring(ring_list_getlist(pList2,x),1),pParser->TokenText) == 0 ) {
ring_parser_error(pParser,RING_PARSER_ERROR_FUNCREDEFINE);
return 0 ;
}
}
}
pList2 = ring_list_newlist(pList2);
ring_list_addstring(pList2,pParser->TokenText);
ring_list_addint(pList2,ring_list_getsize(pParser->GenCode));
ring_list_addstring(pList2,ring_list_getstring(pParser->pRingState->pRingFilesStack,ring_list_getsize(pParser->pRingState->pRingFilesStack)));
if ( pParser->nClassStart == 1 ) {
ring_list_addint(pList2,pParser->nPrivateFlag);
} else {
ring_list_addint(pList2,0);
}
ring_parser_nexttoken(pParser);
if ( ring_parser_isidentifier(pParser) ) {
x = ring_parser_paralist(pParser);
} else {
x = 1 ;
}
#if RING_PARSERTRACE
if ( x == 1 ) {
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Func' Identifier [ParaList]");
}
#endif
return x ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_FUNCNAME);
return 0 ;
}
}
/* Statement --> Package Identifier { '.' Identifier } */
if ( ring_parser_iskeyword(pParser,K_PACKAGE) ) {
ring_parser_nexttoken(pParser);
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_PACKAGE);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Package' Identifier{'.'identifier}");
#endif
if ( ring_parser_namedotname(pParser) ) {
/* Add Package to Packages List */
pList = ring_parser_icg_getactiveoperation(pParser);
/* Check early definition of the package */
for ( x = 1 ; x <= ring_list_getsize(pParser->pRingState->pRingPackagesMap) ; x++ ) {
pList3 = ring_list_getlist(pParser->pRingState->pRingPackagesMap,x);
if ( strcmp(ring_list_getstring(pList3,1),ring_list_getstring(pList,2)) == 0 ) {
pParser->ClassesMap = ring_list_getlist(pList3,2);
return 1 ;
}
}
pList2 = ring_list_newlist(pParser->pRingState->pRingPackagesMap);
/* Add Package Name */
ring_list_addstring(pList2,ring_list_getstring(pList,2));
/* Add Package Classes List */
pParser->ClassesMap = ring_list_newlist(pList2);
return 1 ;
} else {
return 0 ;
}
}
/* Statement --> Import Identifier { '.' Identifier } */
if ( ring_parser_iskeyword(pParser,K_IMPORT) ) {
ring_parser_nexttoken(pParser);
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_IMPORT);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Import' Identifier{'.'identifier}");
#endif
return ring_parser_namedotname(pParser) ;
}
/* Statement --> Private */
if ( ring_parser_iskeyword(pParser,K_PRIVATE) ) {
ring_parser_nexttoken(pParser);
if ( pParser->nClassStart == 1 ) {
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_RETNULL);
/* Change Label After Class to BlockFlag to Jump to Private */
pList = ring_parser_icg_getoperationlist(pParser,pParser->nClassMark);
ring_list_setint(pList,1,ICO_BLOCKFLAG);
ring_list_addint(pList,ring_parser_icg_newlabel(pParser));
ring_parser_icg_newoperation(pParser,ICO_PRIVATE);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Private'");
#endif
pParser->nPrivateFlag = 1 ;
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_NOCLASSDEFINED);
return 0 ;
}
}
return ring_parser_stmt(pParser) ;
}
int ring_parser_stmt ( Parser *pParser )
{
int x,nMark1,nMark2,nMark3,nStart,nEnd,nPerformanceLocations ;
String *pString ;
List *pMark,*pMark2,*pMark3,*pList2 ;
double nNum1 ;
char cStr[50] ;
nPerformanceLocations = 0 ;
char cFileName[200] ;
assert(pParser != NULL);
/* Statement --> Load Literal */
if ( ring_parser_iskeyword(pParser,K_LOAD) ) {
ring_parser_nexttoken(pParser);
if ( ring_parser_isliteral(pParser) ) {
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_FILENAME);
ring_parser_icg_newoperand(pParser,pParser->TokenText);
ring_parser_icg_newoperation(pParser,ICO_BLOCKFLAG);
pMark = ring_parser_icg_getactiveoperation(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Load' Literal");
#endif
/* No package at the start of the file */
pParser->ClassesMap = pParser->pRingState->pRingClassesMap ;
strcpy(cFileName,pParser->TokenText);
if ( ring_fexists(pParser->TokenText) == 0 ) {
ring_exefolder(cFileName);
strcat(cFileName,pParser->TokenText);
if ( ring_fexists(cFileName) == 0 ) {
strcpy(cFileName,pParser->TokenText);
}
}
ring_scanner_readfile(cFileName,pParser->pRingState);
/*
** Generate Code
** Return NULL
*/
ring_parser_icg_newoperation(pParser,ICO_RETNULL);
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark1);
/* Set Active File */
ring_parser_icg_newoperation(pParser,ICO_FILENAME);
ring_parser_icg_newoperand(pParser,ring_list_getstring(pParser->pRingState->pRingFilesStack,ring_list_getsize(pParser->pRingState->pRingFilesStack)));
ring_parser_nexttoken(pParser);
return 1 ;
}
return 0 ;
}
/* Statement --> See Expr */
if ( ring_parser_iskeyword(pParser,K_SEE) ) {
ring_parser_nexttoken(pParser);
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_FUNCEXE);
x = ring_parser_expr(pParser);
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_PRINT);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'See' Expr");
#endif
return x ;
}
/* Statement --> Give Identifier */
if ( ring_parser_iskeyword(pParser,K_GIVE) ) {
ring_parser_nexttoken(pParser);
if ( ring_parser_isidentifier(pParser) ) {
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_LOADADDRESS);
ring_parser_icg_newoperand(pParser,pParser->TokenText);
ring_parser_nexttoken(pParser);
x = ring_parser_mixer(pParser);
if ( x == 0 ) {
return 0 ;
}
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_GIVE);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Give' Identifier|ListItem|Object.Attribute");
#endif
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_VARNAME);
return 0 ;
}
}
/* Statement --> For Identifier = Expr to Expr {Statement} Next | For Identifier in Expr {Statemen */
if ( ring_parser_iskeyword(pParser,K_FOR) ) {
ring_parser_nexttoken(pParser);
if ( ring_parser_isidentifier(pParser) ) {
pString = ring_string_new(pParser->TokenText);
ring_parser_nexttoken(pParser);
if ( ring_parser_isoperator(pParser,"=") ) {
/*
** Generate Code
** Mark for Exit command to go to outside the loop
*/
ring_parser_icg_newoperation(pParser,ICO_EXITMARK);
pMark3 = ring_parser_icg_getactiveoperation(pParser);
ring_parser_icg_newoperation(pParser,ICO_LOADAFIRST);
ring_parser_icg_newoperand(pParser,ring_string_get(pString));
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
/*
** Generate Code
** Before Equal ( = ) not += , -= ,... etc
*/
ring_parser_icg_newoperation(pParser,ICO_BEFOREEQUAL);
ring_parser_icg_newoperandint(pParser,0);
ring_parser_icg_newoperation(pParser,ICO_ASSIGNMENT);
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_newoperation(pParser,ICO_LOADAPUSHV);
ring_parser_icg_newoperand(pParser,ring_string_get(pString));
if ( ring_parser_iskeyword(pParser,K_TO) ) {
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
pParser->nAssignmentFlag = 1 ;
/* Generate Code */
if ( (ring_parser_icg_getlastoperation(pParser) == ICO_PUSHN) && (ring_parser_icg_newlabel(pParser) == (nMark1+2)) ) {
/*
** We check nMark2+2 to avoid executing next instructions when we have expr
** for example for x = 1 to 10+5
*/
nNum1 = ring_list_getdouble(pParser->ActiveGenCodeList,2) ;
ring_parser_icg_deletelastoperation(pParser);
ring_parser_icg_setlastoperation(pParser,ICO_JUMPVARLENUM);
ring_parser_icg_newoperanddouble(pParser,nNum1);
/* Add Locations Needed for Instruction change for performance */
nPerformanceLocations = 1 ;
} else {
ring_parser_icg_newoperation(pParser,ICO_JUMPFOR);
}
pMark = ring_parser_icg_getactiveoperation(pParser);
/* Step <expr> */
x = ring_parser_step(pParser,&nMark1);
if ( x == 0 ) {
ring_string_delete(pString);
return 0 ;
}
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'For' Identifier '=' Expr to Expr ['step' Expr]");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
if ( ring_parser_iskeyword(pParser,K_NEXT) ) {
/* Generate Code */
nMark3 = ring_parser_icg_newlabel(pParser);
/* Increment Jump */
ring_parser_icg_newoperation(pParser,ICO_INCJUMP);
ring_parser_icg_newoperand(pParser,ring_string_get(pString));
ring_parser_icg_newoperandint(pParser,nMark1);
/* Add Locations needed for instruction change for performance */
ring_parser_icg_newoperandint(pParser,0);
ring_parser_icg_newoperandint(pParser,0);
nMark2 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark2);
/* Performance Locations */
if ( nPerformanceLocations ) {
/* Add Locations Needed for Instruction JUMPVARLENUM change for performance */
ring_parser_icg_addoperandint(pMark,0);
ring_parser_icg_addoperandint(pMark,0);
}
/* Set Exit Mark */
ring_parser_icg_addoperandint(pMark3,nMark2);
/* Set Loop Mark */
ring_parser_icg_addoperandint(pMark3,nMark3);
/* End Loop (Remove Exit Mark) */
ring_parser_icg_newoperation(pParser,ICO_POPEXITMARK);
/* POP Step */
ring_parser_icg_newoperation(pParser,ICO_POPSTEP);
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Next --> 'Next'");
#endif
ring_string_delete(pString);
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_NEXT);
}
}
}
}
}
else if ( ring_parser_iskeyword(pParser,K_IN) ) {
/* Generate Code */
sprintf( cStr , "n_sys_var_%d" , ring_parser_icg_instructionscount(pParser) ) ;
/* Mark for Exit command to go to outside the loop */
ring_parser_icg_newoperation(pParser,ICO_EXITMARK);
pMark3 = ring_parser_icg_getactiveoperation(pParser);
ring_parser_icg_newoperation(pParser,ICO_LOADADDRESS);
ring_parser_icg_newoperand(pParser,cStr);
ring_parser_icg_newoperation(pParser,ICO_PUSHN);
ring_parser_icg_newoperanddouble(pParser,1.0);
/* Before Equal ( = ) not += , -= ,... etc */
ring_parser_icg_newoperation(pParser,ICO_BEFOREEQUAL);
ring_parser_icg_newoperandint(pParser,0);
ring_parser_icg_newoperation(pParser,ICO_ASSIGNMENT);
/* Generate Code */
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_newoperation(pParser,ICO_LOADAPUSHV);
ring_parser_icg_newoperand(pParser,cStr);
ring_parser_icg_newoperation(pParser,ICO_LOADFUNC);
ring_parser_icg_newoperand(pParser,"len");
nStart = ring_parser_icg_instructionscount(pParser) + 1 ;
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
pParser->nAssignmentFlag = 1 ;
/* Generate Code */
nEnd = ring_parser_icg_instructionscount(pParser) ;
/* Note (nEnd-1) , -1 to remove instruction PushV (avoid error with for x in string) */
if ( ring_parser_icg_getlastoperation(pParser) == ICO_PUSHV ) {
nEnd-- ;
}
ring_parser_icg_newoperation(pParser,ICO_CALL);
/* Generate 0 For Operator OverLoading */
ring_parser_icg_newoperandint(pParser,0);
ring_parser_icg_newoperation(pParser,ICO_JUMPFOR);
pMark = ring_parser_icg_getactiveoperation(pParser);
ring_parser_icg_newoperation(pParser,ICO_LOADAFIRST);
ring_parser_icg_newoperand(pParser,ring_string_get(pString));
ring_parser_icg_duplicate(pParser,nStart,nEnd);
ring_parser_icg_newoperation(pParser,ICO_LOADAPUSHV);
ring_parser_icg_newoperand(pParser,cStr);
ring_parser_icg_newoperation(pParser,ICO_LOADINDEXADDRESS);
/* Generate 0 For Operator OverLoading */
ring_parser_icg_newoperandint(pParser,0);
/* Item by reference */
ring_parser_icg_newoperation(pParser,ICO_SETREFERENCE);
/* Step <expr> */
x = ring_parser_step(pParser,&nMark1);
if ( x == 0 ) {
ring_string_delete(pString);
return 0 ;
}
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'For' Identifier 'in' Expr ['step' Expr]");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
if ( ring_parser_iskeyword(pParser,K_NEXT) ) {
ring_parser_nexttoken(pParser);
/* Generate Code */
nMark3 = ring_parser_icg_newlabel(pParser);
/* Increment Jump */
ring_parser_icg_newoperation(pParser,ICO_INCJUMP);
ring_parser_icg_newoperand(pParser,cStr);
ring_parser_icg_newoperandint(pParser,nMark1);
/* Add Locations needed for instruction change for performance */
ring_parser_icg_newoperandint(pParser,0);
ring_parser_icg_newoperandint(pParser,0);
nMark2 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark2);
/* Set Exit Mark */
ring_parser_icg_addoperandint(pMark3,nMark2);
/* Set Loop Mark */
ring_parser_icg_addoperandint(pMark3,nMark3);
/* End Loop (Remove Exit Mark) */
ring_parser_icg_newoperation(pParser,ICO_POPEXITMARK);
/* POP Step */
ring_parser_icg_newoperation(pParser,ICO_POPSTEP);
/* Remove Reference Value */
ring_parser_icg_newoperation(pParser,ICO_LOADAFIRST);
ring_parser_icg_newoperand(pParser,ring_string_get(pString));
ring_parser_icg_newoperation(pParser,ICO_KILLREFERENCE);
ring_parser_icg_newoperation(pParser,ICO_PUSHN);
ring_parser_icg_newoperanddouble(pParser,1.0);
/* Before Equal ( = ) not += , -= ,... etc */
ring_parser_icg_newoperation(pParser,ICO_BEFOREEQUAL);
ring_parser_icg_newoperandint(pParser,0);
ring_parser_icg_newoperation(pParser,ICO_ASSIGNMENT);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Next --> 'Next'");
#endif
ring_string_delete(pString);
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_NEXT);
}
}
}
ring_string_delete(pString);
}
return 0 ;
}
/* Statement --> IF Expr Statements OK */
if ( ring_parser_iskeyword(pParser,K_IF) ) {
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
pParser->nAssignmentFlag = 1 ;
/*
** First Condition
** Generate Code
*/
ring_parser_icg_newoperation(pParser,ICO_JUMPZERO);
pMark = ring_parser_icg_getactiveoperation(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'If' Expr {Statement} { But } [Else] Ok");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
/* Generate Code */
pList2 = ring_list_new(0);
ring_parser_icg_newoperation(pParser,ICO_JUMP);
ring_list_addpointer(pList2,ring_parser_icg_getactiveoperation(pParser));
/* { 'But' Statements } 'Else' Statements */
while ( ring_parser_iskeyword(pParser,K_BUT) ) {
/* Generate Code */
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark1);
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
pParser->nAssignmentFlag = 1 ;
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_JUMPZERO);
pMark = ring_parser_icg_getactiveoperation(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : But --> 'But' Expr {Statement}");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_JUMP);
ring_list_addpointer(pList2,ring_parser_icg_getactiveoperation(pParser));
}
}
if ( ring_parser_iskeyword(pParser,K_ELSE) ) {
/* Generate Code */
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark1);
pMark = NULL ;
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Else --> 'Else' {Statement} ");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
}
if ( ring_parser_iskeyword(pParser,K_OK) ) {
/* Generate Code */
nMark1 = ring_parser_icg_newlabel(pParser);
if ( pMark != NULL ) {
ring_parser_icg_addoperandint(pMark,nMark1);
}
if ( ring_list_getsize(pList2) > 0 ) {
for ( x = 1 ; x <= ring_list_getsize(pList2) ; x++ ) {
ring_parser_icg_addoperandint(((List *) ring_list_getpointer(pList2,x)),nMark1);
}
}
ring_list_delete(pList2);
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Ok --> 'OK'");
#endif
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_OK);
ring_list_delete(pList2);
}
}
return 0 ;
}
/* Statement --> WHILE Expr Statements END */
if ( ring_parser_iskeyword(pParser,K_WHILE) ) {
/*
** Generate Code
** Mark for Exit command to go to outsize the loop
*/
ring_parser_icg_newoperation(pParser,ICO_EXITMARK);
pMark3 = ring_parser_icg_getactiveoperation(pParser);
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
pParser->nAssignmentFlag = 1 ;
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_JUMPZERO);
pMark = ring_parser_icg_getactiveoperation(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'While' Expr {Statement} End");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
if ( ring_parser_iskeyword(pParser,K_END) ) {
/* Generate Code */
nMark3 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_newoperation(pParser,ICO_JUMP);
ring_parser_icg_newoperandint(pParser,nMark1);
nMark2 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark2);
/* Set Exit Mark */
ring_parser_icg_addoperandint(pMark3,nMark2);
/* Set Loop Mark */
ring_parser_icg_addoperandint(pMark3,nMark3);
/* End Loop (Remove Exit Mark) */
ring_parser_icg_newoperation(pParser,ICO_POPEXITMARK);
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : End --> 'End'");
#endif
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_END);
}
}
return 0 ;
}
/* Statement --> DO Statements AGAIN Expr */
if ( ring_parser_iskeyword(pParser,K_DO) ) {
/*
** Generate Code
** Mark for Exit command to go to outsize the loop
*/
ring_parser_icg_newoperation(pParser,ICO_EXITMARK);
pMark3 = ring_parser_icg_getactiveoperation(pParser);
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Do' {Statement} Again");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
if ( ring_parser_iskeyword(pParser,K_AGAIN) ) {
/* Generate Code */
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
/* Generate Code (Test Condition) */
ring_parser_icg_newoperation(pParser,ICO_JUMPZERO);
pMark = ring_parser_icg_getactiveoperation(pParser);
/* Generate Code */
nMark3 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_newoperation(pParser,ICO_JUMP);
ring_parser_icg_newoperandint(pParser,nMark1);
nMark2 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark2);
/* Set Exit Mark */
ring_parser_icg_addoperandint(pMark3,nMark2);
/* Set Loop Mark */
ring_parser_icg_addoperandint(pMark3,nMark3);
/* End Loop (Remove Exit Mark) */
ring_parser_icg_newoperation(pParser,ICO_POPEXITMARK);
pParser->nAssignmentFlag = 1 ;
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Again --> 'Again' Expr");
#endif
return 1 ;
}
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_AGAIN);
}
return 0 ;
}
/* Statement --> Return Expr */
if ( ring_parser_iskeyword(pParser,K_RETURN) ) {
ring_parser_nexttoken(pParser);
x = 1 ;
if ( ring_parser_isendline(pParser) == 0 ) {
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_FUNCEXE);
pParser->nAssignmentFlag = 0 ;
x = ring_parser_expr(pParser);
pParser->nAssignmentFlag = 1 ;
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_ENDFUNCEXE);
ring_parser_icg_newoperation(pParser,ICO_RETURN);
} else {
/*
** Generate Code
** Return NULL
*/
ring_parser_icg_newoperation(pParser,ICO_RETNULL);
}
#if RING_PARSERTRACE
if ( x == 1 ) {
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Return'");
}
#endif
return x ;
}
/* Statement --> Try {Statement} Catch {Statement} Done */
if ( ring_parser_iskeyword(pParser,K_TRY) ) {
ring_parser_nexttoken(pParser);
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_TRY);
pMark = ring_parser_icg_getactiveoperation(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Try' {Statement} Catch Done");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
if ( ring_parser_iskeyword(pParser,K_CATCH) ) {
ring_parser_nexttoken(pParser);
/*
** Generate Code
** Jump from end of try block to label after done
*/
ring_parser_icg_newoperation(pParser,ICO_JUMP);
pMark2 = ring_parser_icg_getactiveoperation(pParser);
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark1);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Catch --> 'Catch' {Statement}");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
if ( ring_parser_iskeyword(pParser,K_DONE) ) {
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Done --> 'Done'");
#endif
ring_parser_nexttoken(pParser);
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_JUMP);
pMark3 = ring_parser_icg_getactiveoperation(pParser);
nMark2 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark2,nMark2);
ring_parser_icg_newoperation(pParser,ICO_DONE);
nMark3 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark3,nMark3);
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_NODONE);
}
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_NOCATCH);
}
}
/* Statement --> Bye (Close the Program) */
if ( ring_parser_iskeyword(pParser,K_BYE) ) {
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Bye' ");
#endif
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_BYE);
return 1 ;
}
/* Statement --> Exit (Go to outside the loop) */
if ( ring_parser_iskeyword(pParser,K_EXIT) ) {
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Exit' ");
#endif
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_EXIT);
/* Check Number (Exit from more than one loop) */
if ( ring_parser_isnumber(pParser) ) {
ring_parser_icg_newoperanddouble(pParser,atof(pParser->TokenText));
ring_parser_nexttoken(pParser);
}
return 1 ;
}
/* Statement --> Loop (Continue) */
if ( ring_parser_iskeyword(pParser,K_LOOP) ) {
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Loop'");
#endif
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_LOOP);
/* Check Number (Continue from more than one loop) */
if ( ring_parser_isnumber(pParser) ) {
ring_parser_icg_newoperanddouble(pParser,atof(pParser->TokenText));
ring_parser_nexttoken(pParser);
}
return 1 ;
}
/* Statement --> Switch Expr { ON Expr {Statement} } OFF */
if ( ring_parser_iskeyword(pParser,K_SWITCH) ) {
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
pParser->nAssignmentFlag = 1 ;
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Switch' Expr {ON} [Other] OFF");
#endif
RING_PARSER_IGNORENEWLINE ;
/* ON Statements */
pList2 = ring_list_new(0);
pMark = NULL ;
while ( ring_parser_iskeyword(pParser,K_ON) ) {
ring_parser_nexttoken(pParser);
/* Generate Code */
nMark1 = ring_parser_icg_newlabel(pParser);
if ( pMark != NULL ) {
ring_parser_icg_addoperandint(pMark,nMark1);
}
ring_parser_icg_newoperation(pParser,ICO_DUPLICATE);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
pParser->nAssignmentFlag = 1 ;
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_EQUAL);
ring_parser_icg_newoperation(pParser,ICO_JUMPZERO);
pMark = ring_parser_icg_getactiveoperation(pParser);
ring_parser_icg_newoperation(pParser,ICO_FREESTACK);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : ON --> 'on' Expr {Statement}");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_JUMP);
ring_list_addpointer(pList2,ring_parser_icg_getactiveoperation(pParser));
}
}
/* Other */
if ( ring_parser_iskeyword(pParser,K_OTHER) ) {
ring_parser_nexttoken(pParser);
/* Generate Code */
nMark1 = ring_parser_icg_newlabel(pParser);
if ( pMark != NULL ) {
ring_parser_icg_addoperandint(pMark,nMark1);
pMark = NULL ;
}
ring_parser_icg_newoperation(pParser,ICO_FREESTACK);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Other --> 'Other' {Statement}");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
}
/* OFF */
if ( ring_parser_iskeyword(pParser,K_OFF) ) {
ring_parser_nexttoken(pParser);
/* Generate Code */
nMark1 = ring_parser_icg_newlabel(pParser);
if ( pMark != NULL ) {
ring_parser_icg_addoperandint(pMark,nMark1);
}
if ( ring_list_getsize(pList2) > 0 ) {
for ( x = 1 ; x <= ring_list_getsize(pList2) ; x++ ) {
ring_parser_icg_addoperandint(((List *) ring_list_getpointer(pList2,x)),nMark1);
}
}
ring_list_delete(pList2);
ring_parser_icg_newoperation(pParser,ICO_FREESTACK);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : OFF --> 'Off'");
#endif
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_SWITCHOFF);
}
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_SWITCHEXPR);
}
}
/* Statement --> epslion */
if ( ring_parser_epslion(pParser) ) {
return 1 ;
}
/* Statement --> Expr */
if ( ring_parser_expr(pParser) ) {
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> Expr ");
#endif
ring_parser_icg_newoperation(pParser,ICO_FREESTACK);
return 1 ;
}
return 0 ;
}
