/*!
* Emit an assignment statement.
*/
void LLVMGenerator::emitStatement(const parser::statements::AssignmentStatement* statement)
{
Value* rhsVal = getExpressionValue(statement->getRHS());
// A regular variable expression.
if(statement->getLHS()->getExpressionType() == Expression::Type::Variable)
{
VariableExpression* varExpr = (VariableExpression*)statement->getLHS();
Value* lhsVal = getOrCreateVariablePointer(varExpr->getVariableName());
m_primitiveHelper->emitCopy(lhsVal, rhsVal, getCurrentBBlock());
}
else if(statement->getLHS()->getExpressionType() == Expression::Type::ArrayIndex)
{
ArrayIndexExpression* arrayExpr = (ArrayIndexExpression*)statement->getLHS();
// Expression is trying to index an item in a function return type or something.
if(arrayExpr->getArray()->getExpressionType() != Expression::Type::Variable)
{
throw std::runtime_error("you can only assign values to arrays which are stored in user variables");
}
Value* arrayVal = getOrCreateVariablePointer(((VariableExpression*)arrayExpr->getArray())->getVariableName());
Value* keyVal = getExpressionValue(arrayExpr->getIndex());
m_primitiveHelper->emitSetElement(arrayVal, keyVal, rhsVal, getCurrentBBlock());
}
else
{
throw std::runtime_error("only variables (or variable array index expressions) may be the target of an assignment");
}
}
