Method module_decode

src/lib/decode/decode.cpp:13–56

using namespace Decode;

WasmModule WasmVM::module_decode(std::istream& istream){
    // Check magic & version
    {
        u32_t data;
        istream.read((char*) &data, sizeof(u32_t));
        if(data != Decode::magic){
            throw Exception::incorrect_magic();
        }
        istream.read((char*) &data, sizeof(u32_t));
        if(data != Decode::version){
            throw Exception::incorrect_magic();
        }
    }

    WasmModule module;
    Decode::Stream stream(istream, module);
    // Types
    stream >> Decode::Type(module.types);
    // Imports
    stream >> Decode::Import(module.imports);
    // Funcs
    stream >> Decode::Func(module.funcs);
    // Tables
    stream >> Decode::Table(module.tables);
    // Mems
    stream >> Decode::Memory(module.mems);
    // Tags
    stream >> Decode::Tag(module.tags);
    // Globals
    stream >> Decode::Global(module.globals);
    // Exports
    stream >> Decode::Export(module.exports);
    // Start
    stream >> Decode::Start(module.start);
    // Elems
    stream >> Decode::Elem(module.elems);
    // Data count
    stream >> Decode::DataCount(module.datas);
    // Code
    stream >> Decode::Code(module.funcs);
    // Datas
    stream >> Decode::Data(module.datas);
    return module;
}

byte_t Decode::Stream::peek(){
    return (byte_t)istream.peek();