Reverted commit D3545345

Reviewed By: tadeuzagallo

Differential Revision: D3545345

fbshipit-source-id: d655918be7dcadaf8143800497e85f3de44bd48a

ReactCommon/cxxreact/Executor.cpp

@@ -1,77 +0,0 @@
-// Copyright 2004-present Facebook. All Rights Reserved.
-
-#include "Executor.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <fstream>
-#include <stdio.h>
-#include <sys/stat.h>
-
-#include <folly/Memory.h>
-
-namespace facebook {
-namespace react {
-
-void JSExecutor::loadApplicationScript(std::string bundlePath, std::string sourceURL, int flags) {
-  if ((flags & UNPACKED_JS_SOURCE) == 0) {
-    throw std::runtime_error("No unpacked js source file");
-  }
-  return loadApplicationScript(
-      JSBigMmapString::fromOptimizedBundle(bundlePath),
-      std::move(sourceURL));
-}
-
-static JSBigMmapString::Encoding encodingFromByte(uint8_t byte) {
-  switch (byte) {
-  case 0:
-    return JSBigMmapString::Encoding::Unknown;
-  case 1:
-    return JSBigMmapString::Encoding::Ascii;
-  case 2:
-    return JSBigMmapString::Encoding::Utf8;
-  case 3:
-    return JSBigMmapString::Encoding::Utf16;
-  default:
-    throw std::invalid_argument("Unknown bundle encoding");
-  }
-}
-
-std::unique_ptr<const JSBigMmapString> JSBigMmapString::fromOptimizedBundle(
-    const std::string& bundlePath) {
-  uint8_t sha1[20];
-  uint8_t encoding;
-  struct stat fileInfo;
-  int fd = -1;
-  SCOPE_FAIL { CHECK(fd == -1 || ::close(fd) == 0); };
-
-  {
-    auto metaPath = bundlePath + UNPACKED_META_PATH_SUFFIX;
-    std::ifstream metaFile;
-    metaFile.exceptions(std::ifstream::eofbit | std::ifstream::failbit | std::ifstream::badbit);
-    metaFile.open(metaPath, std::ifstream::in | std::ifstream::binary);
-    metaFile.read(reinterpret_cast<char*>(sha1), sizeof(sha1));
-    metaFile.read(reinterpret_cast<char*>(&encoding), sizeof(encoding));
-  }
-
-  {
-    auto sourcePath = bundlePath + UNPACKED_JS_SOURCE_PATH_SUFFIX;
-    fd = ::open(sourcePath.c_str(), O_RDONLY);
-    if (fd == -1) {
-      throw std::runtime_error(std::string("could not open js bundle file: ") + ::strerror(errno));
-    }
-  }
-
-  if (::fstat(fd, &fileInfo)) {
-    throw std::runtime_error(std::string("fstat on js bundle failed: ") + strerror(errno));
-  }
-
-  return folly::make_unique<const JSBigMmapString>(
-      fd,
-      fileInfo.st_size,
-      sha1,
-      encodingFromByte(encoding));
-}
-
-}  // namespace react
-}  // namespace facebook