// Create as much of the parse tree as possible.
public override int CreateParseSubTree(ref CLexicalAnalyzer plexAnal, ref CSymbolTable pSymbolTable)
{
CExpParser expParser = new CExpParser();
CToken pToken = null;
//try
{
m_pExpression = expParser.ParseExpression(ref plexAnal, ref pSymbolTable, STMT_EXPR_TYPE.EXPR_ASSIGN);
if (m_pExpression == null)
{
//ADD_ERROR(C_IF_ERROR_MISSINGEXP);
}
//Munch a <;>
if ((CLexicalAnalyzer.LEX_FAIL == plexAnal.GetNextToken(ref pToken, ref pSymbolTable)) ||
pToken == null ||
pToken.IsEOS() == false)
{
//throw (C_RS_ERROR_MISSINGSC);
}
return(0);
}
/*
* catch (CRIDEError* perr)
* {
* pvecErrors.push_back(perr);
* plexAnal.SynchronizeTo(EXPRESSION, pSymbolTable);
* }
* return 0;
*/
}
// Create as much of the parse tree as possible.
public override int CreateParseSubTree(ref CLexicalAnalyzer plexAnal, ref CSymbolTable pSymbolTable)
{
CToken pToken = new CToken();
CToken pSymToken = null;
//try
{
if ((CLexicalAnalyzer.LEX_FAIL == plexAnal.GetNextToken(ref pToken, ref pSymbolTable)) || pToken == null)
{
//throw (C_UM_ERROR_INTERNALERR);
}
RUL_TOKEN_SUBTYPE SubType = pToken.GetSubType();
bool lboxState = false;
bool rboxState = false;
bool numState = false;
bool idState = true;
bool commaState = false;
CToken pArrToken = null;
int dimCnt = 0; // stevev 25apr13 - we have to reuse bracket scoped arrays
while ((CLexicalAnalyzer.LEX_FAIL != plexAnal.GetNextVarToken(ref pToken, ref pSymbolTable, SubType)) &&
pToken != null && (!pToken.IsEOS()))
{
int idex = 0;
CVariable cv = pSymbolTable.Find(pToken.GetLexeme(), ref idex);
if (cv != null)
{
pSymToken = cv.Token;
}
if ((!pToken.IsSymbol() && pSymToken != null) ||
(RUL_TOKEN_SUBTYPE.RUL_LBOX == pToken.GetSubType()) ||
(RUL_TOKEN_SUBTYPE.RUL_RBOX == pToken.GetSubType()) ||
(pToken.IsNumeric()))
{
if (pToken.IsArrayVar())
{
lboxState = true;
rboxState = false;
numState = false;
idState = false;
commaState = false;
pSymToken.SetSubType(SubType);
//Make a copy of the array Token
pArrToken = new CToken(pToken);
}
else if (lboxState)
{
if (pToken.GetSubType() != RUL_TOKEN_SUBTYPE.RUL_LBOX)
{
//ADD_ERROR(C_DECL_ERROR_LBOX);
plexAnal.SynchronizeTo(PRODUCTION.DECLARATION, pSymbolTable);
}
lboxState = false;
rboxState = true;
numState = false;
idState = false;
commaState = false;
}
else if (rboxState)
{
if ((null == pArrToken) || !pToken.IsNumeric())
{
//ADD_ERROR(C_DECL_ERROR_NUM);
plexAnal.SynchronizeTo(PRODUCTION.DECLARATION, pSymbolTable);
}
lboxState = false;
rboxState = false;
numState = true;
idState = false;
commaState = false;
//This is a number and with pArrToken get the symbol table token
int i32Idx = pArrToken.GetSymbolTableIndex();
CVariable pVar = pSymbolTable.GetAt(i32Idx);
//INTER_VARIANT varArray = pVar.GetValue();
VARIANT_TYPE vtSafeArray = new VARIANT_TYPE();
//increment the dimension and set the limit of that dimension
if (pVar.GetValue().GetVarType() != VARIANT_TYPE.RUL_SAFEARRAY || dimCnt == 0)// stevev 25apr13
{
// WS:EMP-17jul07:varArray.Clear();
// WS:EMP-17jul07:varArray.varType = RUL_SAFEARRAY;
// WS:EMP-17jul07:__VAL& val = (__VAL&)varArray.GetValue();
// stevev-14feb08:make it more flexible...INTER_SAFEARRAYBOUND rgbound[1] = {atoi(pToken.GetLexeme())};
INTER_SAFEARRAYBOUND rgbound = new INTER_SAFEARRAYBOUND();
rgbound.cElements = Convert.ToUInt32(pToken.GetLexeme());
//INTER_SAFEARRAYBOUND rgbound[1] = { strtoul(pToken->GetLexeme(), NULL, 0) };
INTER_SAFEARRAY sa = new INTER_SAFEARRAY(); // WS:EMP-17jul07 was::>val.prgsa = new INTER_SAFEARRAY();
ushort cDims = 0; // WS:EMP-17jul07 was::>_USHORT cDims = (val.prgsa).GetDims();
TokenType_to_VariantType(pToken.GetType(), SubType, ref vtSafeArray);
// WS:EMP-17jul07 was::>(val.prgsa).SetAllocationParameters(vtSafeArray, ++cDims, rgbound);
sa.SetAllocationParameters(vtSafeArray, ++cDims, rgbound);
sa.Allocate(); // stevev 11jun09 - get rid of error message, destructor will deallocate
//varArray = sa; // added WS:EMP-17jul07
pVar.GetValue().SetValue(sa);
pSymbolTable.SetAt(i32Idx, pVar);
dimCnt = 1;
}
else// isa RUL_SAFEARRAY && dimCnt > 0
{
__VAL val = pVar.GetValue().GetValue();
//INTER_SAFEARRAYBOUND rgbound[1] = { strtoul(pToken.GetLexeme(), NULL, 0) };
INTER_SAFEARRAYBOUND rgbound = new INTER_SAFEARRAYBOUND();
rgbound.cElements = 3;
(val.prgsa).AddDim(rgbound);
dimCnt++;
}
}
else if (numState)
{
if (pToken.GetSubType() != RUL_TOKEN_SUBTYPE.RUL_RBOX)
{
//ADD_ERROR(C_DECL_ERROR_RBOX);
plexAnal.SynchronizeTo(PRODUCTION.DECLARATION, pSymbolTable);
}
//accept a Right box.
lboxState = true;
rboxState = false;
numState = false;
commaState = true;
idState = false;
}
else
{
if (idState)
{
if (pToken.GetType() != RUL_TOKEN_TYPE.RUL_SIMPLE_VARIABLE)
{
//ADD_ERROR(C_DECL_ERROR_IDMISSING);
plexAnal.SynchronizeTo(PRODUCTION.DECLARATION, pSymbolTable);
}
pSymToken.SetSubType(SubType);
}
else
{
//ADD_ERROR(C_DECL_ERROR_COMMAMISSING);
plexAnal.SynchronizeTo(PRODUCTION.DECLARATION, pSymbolTable);
}
lboxState = false;
rboxState = false;
numState = false;
idState = false;
commaState = true;
}
}
else if (commaState)
{
if (pToken.GetSubType() != RUL_TOKEN_SUBTYPE.RUL_COMMA)
{
//ADD_ERROR(C_DECL_ERROR_COMMAMISSING);
plexAnal.SynchronizeTo(PRODUCTION.DECLARATION, pSymbolTable);
}
idState = true;
commaState = false;
lboxState = false;
rboxState = false;
numState = false;
}
else
{
//Of course, this is a problem case.
//Unfortunately, expressions in the declarations are not handled
//ADD_ERROR(C_DECL_ERROR_EXPRESSION);
plexAnal.SynchronizeTo(PRODUCTION.DECLARATION, pSymbolTable);
//accept a Right box. //VMKP added on 030404
/* Synchronizing was not proper when an expression
* present in the variable declaration, With that the
* below lines one declaration next to the expression
* declaration is skipping */
lboxState = true;
rboxState = false;
numState = false;
commaState = true;
idState = false;
}
}//end of while loop
//Validate the exit criteria...
if (!(rboxState == numState == idState == false) || !(commaState == true))
{
//ADD_ERROR(C_DECL_ERROR_UNKNOWN);
plexAnal.SynchronizeTo(PRODUCTION.DECLARATION, pSymbolTable);
}
return(1);
}
/*
* catch (CRIDEError* perr)
* {
* pvecErrors.push_back(perr);
* plexAnal.MovePast(
* RUL_SYMBOL,
* RUL_SEMICOLON,
* pSymbolTable);
* }
* catch (...)
* {
* throw (C_UM_ERROR_UNKNOWNERROR);
* }
*
* return PARSE_FAIL;
*/
}
