1 files changed, 72 insertions, 0 deletions
diff --git a/c_compiler/src/function.cpp b/c_compiler/src/function.cpp
new file mode 100644
index 0000000..090e070
--- /dev/null
+++ b/c_compiler/src/function.cpp
@@ -0,0 +1,72 @@
+#include "function.hpp"
+#include "statement.hpp"
+#include "declaration.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;
+}