Method parse_funcsection

src/lib/parse/ParseContext.cpp:654–706

}

void ParseContext::parse_funcsection() {
    tok_.expect(TokenType::LParen);
    tok_.expect_keyword("func");
    index_t func_idx = func_map_.records.size();
    // optional Id
    if (tok_.peek().type == TokenType::Id) {
        std::string id = tok_.consume().text;
        if (func_map_.id_map.contains(id))
            throw Exception::Parse("duplicated func id '" + id + "'", tok_.location());
        func_map_.id_map[id] = func_idx;
    }
    // exportabbr*
    while (tok_.peek().type == TokenType::LParen &&
           tok_.peek2().type == TokenType::Keyword && tok_.peek2().text == "export") {
        WasmExport& exp = module_.exports.emplace_back();
        exp.name = parse_exportabbr();
        exp.index = func_idx;
        exp.desc = WasmExport::DescType::func;
    }
    // import or body
    if (tok_.peek().type == TokenType::LParen &&
        tok_.peek2().type == TokenType::Keyword && tok_.peek2().text == "import") {
        func_map_.records.emplace_back(IndexSpace::Type::Import);
        auto [imod, iname] = parse_importabbr();
        WasmImport& imp = module_.imports.emplace_back();
        imp.desc = parse_typeuse();
        imp.module = imod; imp.name = iname;
    } else {
        func_map_.records.emplace_back(IndexSpace::Type::Normal);
        WasmFunc& func = module_.funcs.emplace_back();
        func.typeidx = parse_typeuse();
        // set local_map from param ids
        local_map_ = types_[func.typeidx].second;
        // locals
        while (tok_.peek().type == TokenType::LParen &&
               tok_.peek2().type == TokenType::Keyword && tok_.peek2().text == "local") {
            auto [id, types] = parse_local();
            if (!id.empty()) {
                local_map_[id] = func.locals.size();
            }
            func.locals.insert(func.locals.end(), types.begin(), types.end());
        }
        // instructions
        while (tok_.peek().type != TokenType::RParen && !tok_.at_eof()) {
            auto instrs = parse_instr();
            func.body.insert(func.body.end(), instrs.begin(), instrs.end());
        }
        func.body.emplace_back(Instr::End());
        local_map_.clear();
        label_map_.clear();
    }
    tok_.expect(TokenType::RParen);
}

void ParseContext::parse_tablesection() {
    tok_.expect(TokenType::LParen);