#include <fxos/symbols.h>

namespace FxOS {

SymbolTable::SymbolTable(std::string os, std::string mpu):
	m_os_constraint(os), m_mpu_constraint(mpu)
{
}

bool SymbolTable::is_usable_on(OS &os) const noexcept
{
	std::string constraint = (os.type == OS::FX) ? "fx" : "cg";
	return (m_os_constraint == "" || m_os_constraint == constraint);
}

bool SymbolTable::is_usable_on(Target &target) const noexcept
{
	return m_mpu_constraint == "" || target.mpu == "" ||
		m_mpu_constraint == target.mpu;
}

void SymbolTable::add(Symbol s)
{
	symbols.push_back(s);
}

std::optional<std::string> SymbolTable::query(Symbol::Type type,
	uint32_t value) const
{
	for(auto &sym: symbols)
	{
		if(sym.type == type && sym.value == value) return sym.name;
	}

	return std::nullopt;
}

std::optional<Symbol> SymbolTable::lookup(std::string name) const
{
	for(auto &sym: symbols)
	{
		if(sym.name == name) return sym;
	}

	return std::nullopt;
}

} /* namespace FxOS */