66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
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// Copyright 2004-present Facebook. All Rights Reserved.
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#pragma once
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#include <fstream>
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#include <memory>
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#include <cxxreact/JSBigString.h>
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#include <cxxreact/JSModulesUnbundle.h>
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#ifndef RN_EXPORT
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#define RN_EXPORT __attribute__((visibility("default")))
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#endif
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namespace facebook {
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namespace react {
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class RN_EXPORT JSIndexedRAMBundle : public JSModulesUnbundle {
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public:
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static std::function<std::unique_ptr<JSModulesUnbundle>(std::string)> buildFactory();
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// Throws std::runtime_error on failure.
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JSIndexedRAMBundle(const char *sourceURL);
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// Throws std::runtime_error on failure.
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std::unique_ptr<const JSBigString> getStartupCode();
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// Throws std::runtime_error on failure.
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Module getModule(uint32_t moduleId) const override;
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private:
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struct ModuleData {
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uint32_t offset;
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uint32_t length;
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};
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static_assert(
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sizeof(ModuleData) == 8,
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"ModuleData must not have any padding and use sizes matching input files");
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struct ModuleTable {
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size_t numEntries;
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std::unique_ptr<ModuleData[]> data;
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ModuleTable() : numEntries(0) {};
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ModuleTable(size_t entries) :
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numEntries(entries),
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data(std::unique_ptr<ModuleData[]>(new ModuleData[numEntries])) {};
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size_t byteLength() const {
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return numEntries * sizeof(ModuleData);
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}
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};
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std::string getModuleCode(const uint32_t id) const;
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void readBundle(char *buffer, const std::streamsize bytes) const;
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void readBundle(
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char *buffer, const
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std::streamsize bytes,
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const std::ifstream::pos_type position) const;
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mutable std::ifstream m_bundle;
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ModuleTable m_table;
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size_t m_baseOffset;
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std::unique_ptr<JSBigBufferString> m_startupCode;
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};
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} // namespace react
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} // namespace facebook
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