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#include "runtime.hpp"
#include "program.hpp"
#include <cassert>
#include <cstring>
#include <stdexcept>
namespace Interpreter
{
int Runtime::getIntegerLiteral(int index) const
{
if (index < 0 || mProgram->mIntegers.size() <= static_cast<std::size_t>(index))
throw std::out_of_range("Invalid integer index");
return mProgram->mIntegers[static_cast<std::size_t>(index)];
}
float Runtime::getFloatLiteral(int index) const
{
if (index < 0 || mProgram->mFloats.size() <= static_cast<std::size_t>(index))
throw std::out_of_range("Invalid float index");
return mProgram->mFloats[static_cast<std::size_t>(index)];
}
std::string_view Runtime::getStringLiteral(int index) const
{
if (index < 0 || mProgram->mStrings.size() <= static_cast<std::size_t>(index))
throw std::out_of_range("Invalid string literal index");
return mProgram->mStrings[static_cast<std::size_t>(index)];
}
void Runtime::configure(const Program& program, Context& context)
{
clear();
mContext = &context;
mProgram = &program;
mPC = 0;
}
void Runtime::clear()
{
mContext = nullptr;
mProgram = nullptr;
mStack.clear();
}
void Runtime::push(const Data& data)
{
mStack.push_back(data);
}
void Runtime::push(Type_Integer value)
{
Data data;
data.mInteger = value;
push(data);
}
void Runtime::push(Type_Float value)
{
Data data;
data.mFloat = value;
push(data);
}
void Runtime::pop()
{
if (mStack.empty())
throw std::runtime_error("stack underflow");
mStack.pop_back();
}
Data& Runtime::operator[](int index)
{
if (index < 0 || index >= static_cast<int>(mStack.size()))
throw std::runtime_error("stack index out of range");
return mStack[mStack.size() - index - 1];
}
Context& Runtime::getContext()
{
assert(mContext);
return *mContext;
}
}
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