/*
analyzing each parameter put them into symbol table
if two parameters have same id then report an error
0 or 1 indicates val or ref
*/
void analyze_pram(Param param, char* procName, int paramNum)
{
char* varName = param->id;
if(param->kind==VAL)
{
if(addDecl(procName, varName, param->type, slotNum,0, paramNum)==0)
{
printf("duplicate parameter of %s in proc %s. \n",
varName, procName);
errorNum++;
}
else
slotNum++;
}
else if(param->kind==REF)
{
if(addDecl(procName, varName, param->type, slotNum,1,paramNum)==0)
{
printf("duplicate parameter of %s in proc %s. \n",
varName, procName);
errorNum++;
}
else
slotNum++;
}
}
/*
analyzing each declaration, if the variable has not
been declared then put it into symbol table,
else report an error
for array, calculate the size and dimension
if the size is -1, report an error
*/
void analyze_decl(Decl decl, char* procName)
{
char* varName = decl->id;
if(!decl->intervals)
{
if(addDecl(procName, varName, decl->type, slotNum,0,-1)==0)
{
printf("duplicate declaration of %s in line %d. \n",
varName, decl->lineno);
errorNum++;
}
else
slotNum++;
}
else if(decl->intervals)
{
int size = getArrSize(decl->intervals);
int dimension = getArrDimension(decl->intervals);
if(size == -1)
{
printf("lower bound greater than higher bound.\n");
errorNum++;
}
else if(addArray(procName, varName, decl->type, slotNum,
size, dimension, decl->intervals)==0)
{
printf("duplicate declaration of %s in line %d. \n",
varName, decl->lineno);
errorNum++;
}
else
slotNum = slotNum + size;
}
}
void
DeclStemnt::addDecls(Decl *decls)
{
Decl *decl = decls;
while (decls != NULL)
{
decls = decls->next;
decl->next = NULL;
//std::cout << "Decl is: ";
//decl->print(std::cout,true);
//std::cout << std::endl;
addDecl(decl);
decl = decls;
}
}
