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