void AssignmentStatement::evaluate(SymTab &symTab,
std::unique_ptr<FuncTab> &funcTab) {
if(_lhsExpression == nullptr) {
symTab.setValueFor(lhsVariable(),
rhsExpression()->evaluate(symTab, funcTab));
} else {
auto lhsindex = dynamic_cast<NumberDescriptor*>
(_lhsExpression->evaluate(symTab, funcTab).get());
if(lhsindex->type() != TypeDescriptor::INTEGER) {
std::cout << "AssignmentStatement::evaluate error index must be";
std::cout << " an integer\n";
exit(1);
}
int index = lhsindex->value.intValue;
auto lhs = symTab.getValueFor(lhsVariable());
auto rhs = _rhsExpression->evaluate(symTab, funcTab);
if(lhs->type() == TypeDescriptor::STRINGARRAY) {
if(rhs->type() != TypeDescriptor::STRING){
std::cout<<"array value not of compatible types"<<std::endl;
exit(1);
}
auto desc = dynamic_cast<StringDescriptor*>(rhs.get());
std::string val = desc->value;
dynamic_cast<StringArray*>(lhs.get())->setSubStr(index, val);
} else if(lhs->type() == TypeDescriptor::NUMBERARRAY) {
if(rhs->type() != TypeDescriptor::INTEGER){
std::cout<<"array value not of compatible types"<<std::endl;
exit(1);
}
auto desc = dynamic_cast<NumberDescriptor*>(rhs.get());
int val = desc->value.intValue;
dynamic_cast<NumberArray*>(lhs.get())->setSubNum(index, val);
}
}
}
StmtIndex::StmtIndex(AstVariable* lhs,
AstIdxdata* rhs)
: _rhsIdxdata(rhs)
{
// set LHS variable
lhsVariable(lhs);
buoyancySink();
}
StmtCreateData::StmtCreateData(AstVariable* lhs,
const bool lexScope)
: _outerLexicalScope(lexScope),
_initializeData(false),
_uintValue(0),
_intValue(0),
_floatValue(0),
_doubleValue(0)
{
// set LHS variable
lhsVariable(lhs);
// array memory creation rises to the top
buoyancyRise();
}
StmtReduce::StmtReduce(AstVariable* lhs,
AstDotprod* rhs)
: _rhsAccum(NULL),
_rhsDotprod(rhs),
_rhsW(rhs->insideW()),
_rhsH(rhs->insideH()),
_nestStmt()
{
// set LHS variable
lhsVariable(lhs);
// code sinks
buoyancySink();
descendAst(*lhs);
}
bool StmtReduce::randomness(void) const
{
return lhsVariable()->randomness();
}