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Valentin SherginandFacebook Github Bot
9842e39019
Summary: Our long-term plan is to completely illuminate `jsi::Value`-to-`folly::dynamic` serialization step in prop parsing process improving performance and memory pressure. At the same time, we don't want to introduce a hard dependency in application code to JSI because it exposes direct access to VM and prevents parsing some data that come *NOT* from JSVM. RawValue is an extremely light-weight (hopefully fully optimized-out) abstraction that provides limited JSON-like and C++-idiomatic interface. The current particular implementation is still using `folly::dynamic` inside, but I have fully JSI-powered one which will replace the current one right after we figure out how to deal with folly::dynamic-specific callsites. Or we can implement RawValue in a hybrid manner if a code-size implication of that will be minimal. Reviewed By: JoshuaGross, mdvacca Differential Revision: D13962466 fbshipit-source-id: e848522fd242f21e9e771773f2103f1c1d9d7f21
48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#pragma once
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#include <folly/dynamic.h>
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#include <react/core/RawProps.h>
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#include <react/core/RawValue.h>
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#include <memory>
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#include <string>
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#include <unordered_map>
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namespace facebook {
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namespace react {
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/*
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* `Tag` and `InstanceHandle` are used to address React Native components.
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*/
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using Tag = int32_t;
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using InstanceHandle = struct InstanceHandleDummyStruct {
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} *;
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/*
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* An id of a running Surface instance that is used to refer to the instance.
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*/
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using SurfaceId = int32_t;
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/*
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* Universal component handle which allows to refer to `ComponentDescriptor`s
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* in maps efficiently.
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* Practically, it's something that concrete ShadowNode and concrete
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* ComponentDescriptor have in common.
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*/
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using ComponentHandle = int64_t;
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/*
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* String identifier for components used for addressing them from
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* JavaScript side.
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*/
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using ComponentName = std::string;
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} // namespace react
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} // namespace facebook
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