C++ (Cpp) LinkData::deserialize Examples

Example #1

File: WasmModule.cpp Project: cliqz-oss/browser-f

/* static */ const uint8_t*
Module::deserialize(const uint8_t* cursor, SharedModule* module, Metadata* maybeMetadata)
{
    Bytes code;
    cursor = DeserializePodVector(cursor, &code);
    if (!cursor)
        return nullptr;

    LinkData linkData;
    cursor = linkData.deserialize(cursor);
    if (!cursor)
        return nullptr;

    ImportVector imports;
    cursor = DeserializeVector(cursor, &imports);
    if (!cursor)
        return nullptr;

    ExportVector exports;
    cursor = DeserializeVector(cursor, &exports);
    if (!cursor)
        return nullptr;

    DataSegmentVector dataSegments;
    cursor = DeserializePodVector(cursor, &dataSegments);
    if (!cursor)
        return nullptr;

    ElemSegmentVector elemSegments;
    cursor = DeserializeVector(cursor, &elemSegments);
    if (!cursor)
        return nullptr;

    MutableMetadata metadata;
    if (maybeMetadata) {
        metadata = maybeMetadata;
    } else {
        metadata = js_new<Metadata>();
        if (!metadata)
            return nullptr;
    }
    cursor = metadata->deserialize(cursor);
    if (!cursor)
        return nullptr;
    MOZ_RELEASE_ASSERT(!!maybeMetadata == metadata->isAsmJS());

    MutableBytes bytecode = js_new<ShareableBytes>();
    if (!bytecode)
        return nullptr;
    cursor = DeserializePodVector(cursor, &bytecode->bytes);
    if (!cursor)
        return nullptr;

    *module = js_new<Module>(Move(code),
                             Move(linkData),
                             Move(imports),
                             Move(exports),
                             Move(dataSegments),
                             Move(elemSegments),
                             *metadata,
                             *bytecode);
    if (!*module)
        return nullptr;

    return cursor;
}

Example #2

/* static */ SharedModule
Module::deserialize(const uint8_t* bytecodeBegin, size_t bytecodeSize,
                    const uint8_t* compiledBegin, size_t compiledSize,
                    Metadata* maybeMetadata)
{
    MutableBytes bytecode = js_new<ShareableBytes>();
    if (!bytecode || !bytecode->bytes.initLengthUninitialized(bytecodeSize))
        return nullptr;

    memcpy(bytecode->bytes.begin(), bytecodeBegin, bytecodeSize);

    Assumptions assumptions;
    const uint8_t* cursor = assumptions.deserialize(compiledBegin, compiledSize);
    if (!cursor)
        return nullptr;

    Bytes code;
    cursor = DeserializePodVector(cursor, &code);
    if (!cursor)
        return nullptr;

    LinkData linkData;
    cursor = linkData.deserialize(cursor);
    if (!cursor)
        return nullptr;

    ImportVector imports;
    cursor = DeserializeVector(cursor, &imports);
    if (!cursor)
        return nullptr;

    ExportVector exports;
    cursor = DeserializeVector(cursor, &exports);
    if (!cursor)
        return nullptr;

    DataSegmentVector dataSegments;
    cursor = DeserializePodVector(cursor, &dataSegments);
    if (!cursor)
        return nullptr;

    ElemSegmentVector elemSegments;
    cursor = DeserializeVector(cursor, &elemSegments);
    if (!cursor)
        return nullptr;

    MutableMetadata metadata;
    if (maybeMetadata) {
        metadata = maybeMetadata;
    } else {
        metadata = js_new<Metadata>();
        if (!metadata)
            return nullptr;
    }
    cursor = metadata->deserialize(cursor);
    if (!cursor)
        return nullptr;

    MOZ_RELEASE_ASSERT(cursor == compiledBegin + compiledSize);
    MOZ_RELEASE_ASSERT(!!maybeMetadata == metadata->isAsmJS());

    return js_new<Module>(Move(assumptions),
                          Move(code),
                          Move(linkData),
                          Move(imports),
                          Move(exports),
                          Move(dataSegments),
                          Move(elemSegments),
                          *metadata,
                          *bytecode);
}