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#include "function.hpp"
#include "statement.hpp"
#include "declaration.hpp"
#include "bindings.hpp"
#include <iostream>
#include <vector>
// Function definition
Function::Function(const std::string& _id, Declaration* _parameter_list, Statement* _statement)
: id(_id), parameter_list(_parameter_list), statement(_statement)
{}
void Function::print() const
{
std::cout << id << std::endl;
if(parameter_list != nullptr)
parameter_list->print();
if(statement != nullptr)
statement->print();
}
void Function::printxml() const
{
std::cout << "<Function id=\"" << id << "\">" << std::endl;
Declaration* parameter = parameter_list;
std::vector<std::string> parameter_vec;
while(parameter != nullptr) {
if(parameter->getId() != "")
parameter_vec.push_back(parameter->getId());
parameter = parameter->getNext();
}
for(std::vector<std::string>::reverse_iterator itr = parameter_vec.rbegin();
itr != parameter_vec.rend(); ++itr) {
std::cout << "<Parameter id=\"" << *itr << "\" />" << std::endl;
}
if(statement != nullptr)
statement->printxml();
std::cout << "</Function>" << std::endl;
}
VariableStackBindings Function::printasm(VariableStackBindings bindings) const
{
// Counting all the variables being declared in the function
int32_t count = 0;
if(statement != nullptr)
statement->count_variables(count);
// This includes the space for the old frame counter and (return address)?
int32_t memory_needed = 4*count+8;
std::cout << "\t.text\n\t.globl\t" << id << std::endl << id << ":\n\taddiu\t$sp,$sp,-"
<< memory_needed << "\n\tsw\t$fp," << memory_needed-4 << "($sp)\n\tmove\t$fp,$sp"
<< std::endl;
// TODO print asm for parameters
// Prints the asm for the compound statement in the function
statement->printasm(bindings);
std::cout << "\tmove\t$sp,$fp\n\tlw\t$fp," << memory_needed-4 << "($sp)\n\taddiu\t$sp,$sp,"
<< memory_needed << "\n\tjr\t$31\n\tnop" << std::endl;
return bindings;
}
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