Method parseIfBody

components/compiler/controlparser.cpp:14–94

namespace Compiler
{
    bool ControlParser::parseIfBody(int keyword, const TokenLoc& loc, Scanner& scanner)
    {
        if (keyword == Scanner::K_endif || keyword == Scanner::K_elseif || keyword == Scanner::K_else)
        {
            std::pair<Codes, Codes> entry;

            if (mState != IfElseBodyState)
                mExprParser.append(entry.first);

            std::copy(mCodeBlock.begin(), mCodeBlock.end(), std::back_inserter(entry.second));

            mIfCode.push_back(std::move(entry));

            mCodeBlock.clear();

            if (keyword == Scanner::K_endif)
            {
                // store code for if-cascade
                Codes codes;

                for (auto iter(mIfCode.rbegin()); iter != mIfCode.rend(); ++iter)
                {
                    Codes block;

                    if (iter != mIfCode.rbegin())
                        Generator::jump(iter->second, static_cast<int>(codes.size() + 1));

                    if (!iter->first.empty())
                    {
                        // if or elseif
                        std::copy(iter->first.begin(), iter->first.end(), std::back_inserter(block));
                        Generator::jumpOnZero(block, static_cast<int>(iter->second.size() + 1));
                    }

                    std::copy(iter->second.begin(), iter->second.end(), std::back_inserter(block));

                    std::swap(codes, block);

                    std::copy(block.begin(), block.end(), std::back_inserter(codes));
                }

                std::copy(codes.begin(), codes.end(), std::back_inserter(mCode));

                mIfCode.clear();
                mState = IfEndifState;
            }
            else if (keyword == Scanner::K_elseif)
            {
                mExprParser.reset();
                scanner.scan(mExprParser);

                mState = IfElseifEndState;
            }
            else if (keyword == Scanner::K_else)
            {
                mState = IfElseJunkState; /// \todo should be IfElseEndState; add an option for that
            }