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#include "declaration.hpp"
#include "bindings.hpp"
#include "type.hpp"
#include "expression.hpp"
#include <cstdio>
#include <vector>
// Declaration definition
Declaration::Declaration(const std::string &id, Expression *initializer)
: id_(id), initializer_(initializer), extern_declaration_(false)
{}
Declaration::Declaration(const std::string &id, ExpressionPtr initializer)
:id_(id), initializer_(initializer), extern_declaration_(false)
{}
void Declaration::print() const
{
if(next_declaration_ != nullptr)
next_declaration_->print();
if(id_ != "")
printf("%s\n", id_.c_str());
}
void Declaration::printXml() const
{
if(next_declaration_ != nullptr)
next_declaration_->printXml();
if(next_list_declaration_ != nullptr)
next_list_declaration_->printXml();
if(id_ != "")
printf("<Variable id=\"%s\" />", id_.c_str());
}
VariableStackBindings Declaration::printAsm(VariableStackBindings bindings, int& label_count) const
{
(void)label_count;
if(!extern_declaration_)
{
if(initializer_ == nullptr)
printf("\t.comm\t%s,4,4\n", id_.c_str());
else
printf("\t.data\n\t.globl\t%s\n%s:\n\t.word\t%d\n",
id_.c_str(), id_.c_str(), initializer_->constantFold());
}
bindings.insertBinding(id_, type_, -1);
return bindings;
}
VariableStackBindings Declaration::localAsm(VariableStackBindings bindings, int& label_count) const
{
if(next_declaration_ != nullptr)
bindings = next_declaration_->localAsm(bindings, label_count);
if(next_list_declaration_ != nullptr)
bindings = next_list_declaration_->localAsm(bindings, label_count);
if(id_ != "")
{
int stack_position = bindings.currentStackPosition();
if(initializer_ != nullptr)
{
initializer_->printAsm(bindings, label_count);
type_->store(stack_position);
}
bindings.insertBinding(id_, type_, stack_position);
type_->increaseStackPosition(bindings);
}
return bindings;
}
void Declaration::countDeclarations(int &declaration_count) const
{
if(next_declaration_ != nullptr)
next_declaration_->countDeclarations(declaration_count);
if(next_list_declaration_ != nullptr)
next_list_declaration_->countDeclarations(declaration_count);
++declaration_count;
}
void Declaration::linkDeclaration(Declaration* next_declaration)
{
DeclarationPtr decl_ptr(next_declaration);
next_declaration_ = decl_ptr;
}
void Declaration::linkListDeclaration(Declaration* next_declaration)
{
DeclarationPtr decl_ptr(next_declaration);
next_list_declaration_ = decl_ptr;
}
void Declaration::setType(TypePtr type)
{
type_ = type;
}
void Declaration::setInitializer(Expression* initializer)
{
ExpressionPtr expression_ptr(initializer);
initializer_ = expression_ptr;
}
void Declaration::setExternDeclaration(bool is_extern)
{
extern_declaration_ = is_extern;
}
DeclarationPtr Declaration::getNext() const
{
return next_declaration_;
}
DeclarationPtr Declaration::getNextListItem() const
{
return next_list_declaration_;
}
ExpressionPtr Declaration::getInitializer() const
{
return initializer_;
}
std::string Declaration::getId() const
{
return id_;
}
TypePtr Declaration::getType() const
{
return type_;
}
// Array declaration class
ArrayDeclaration::ArrayDeclaration(const std::string &id, ExpressionPtr initializer, const int &size)
: Declaration(id, initializer), size_(size)
{}
VariableStackBindings ArrayDeclaration::printAsm(VariableStackBindings bindings, int &label_count) const
{
return bindings;
}
VariableStackBindings ArrayDeclaration::localAsm(VariableStackBindings bindings, int &label_count) const
{
if(next_declaration_ != nullptr)
bindings = next_declaration_->localAsm(bindings, label_count);
if(next_list_declaration_ != nullptr)
bindings = next_list_declaration_->localAsm(bindings, label_count);
if(id_ != "")
{
int stack_position = bindings.currentStackPosition();
if(initializer_ != nullptr)
{
ExpressionPtr initializer = initializer_;
std::vector<ExpressionPtr> initializer_vector;
while(initializer != nullptr)
{
initializer_vector.push_back(initializer);
initializer = initializer->nextExpression();
}
for(auto itr = initializer_vector.rbegin(); itr != initializer_vector.rend(); ++itr)
{
int initializer_count = itr-initializer_vector.rbegin();
(*itr)->printAsm(bindings, label_count);
type_->store(stack_position+type_->getSize()*initializer_count);
}
}
bindings.insertBinding(id_, type_, stack_position);
type_->increaseStackPosition(bindings);
}
return bindings;
}
void ArrayDeclaration::countDeclarations(int &declaration_count) const
{
if(next_declaration_ != nullptr)
next_declaration_->countDeclarations(declaration_count);
if(next_list_declaration_ != nullptr)
next_list_declaration_->countDeclarations(declaration_count);
declaration_count += size_;
}
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