hermes/API/hermes/CompileJS.cpp at Huxpro-patch-podspec · JavaScriptBench/hermes

55 lines (43 loc) · 1.42 KB

/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

#include "CompileJS.h"

#include "hermes/BCGen/HBC/BytecodeProviderFromSrc.h"
#include "hermes/Support/Algorithms.h"

#include "llvh/Support/SHA1.h"

namespace hermes {

bool compileJS(
    const std::string &str,
    const std::string &sourceURL,
    std::string &bytecode,
    bool optimize) {
  hbc::CompileFlags flags{};
  flags.optimize = optimize;

  // Note that we are relying the zero termination provided by str.data(),
  // because the parser requires it.
  auto res = hbc::BCProviderFromSrc::createBCProviderFromSrc(
      hermes::make_unique<hermes::Buffer>(
          (const uint8_t *)str.data(), str.size()),
      sourceURL,
      flags);
  if (!res.first)
    return false;

  llvh::raw_string_ostream bcstream(bytecode);

  BytecodeGenerationOptions opts(::hermes::EmitBundle);
  opts.optimizationEnabled = optimize;

  hbc::BytecodeSerializer BS{bcstream, opts};
  BS.serialize(
      *res.first->getBytecodeModule(),
      llvh::SHA1::hash(llvh::makeArrayRef(
          reinterpret_cast<const uint8_t *>(str.data()), str.size())));

  // Flush to string.
  bcstream.flush();
  return true;
}

bool compileJS(const std::string &str, std::string &bytecode, bool optimize) {
  return compileJS(str, "", bytecode, optimize);
}

} // namespace hermes

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Expand file tree

Search code, repositories, users, issues, pull requests...

FilesExpand file tree

CompileJS.cpp

Latest commit

History

CompileJS.cpp

File metadata and controls

Expand file tree