text: /*
     +----------------------------------------------------------------------+
     | HipHop for PHP                                                       |
     +----------------------------------------------------------------------+
     | Copyright (c) 2010-present Facebook, Inc. (http://www.facebook.com)  |
     +----------------------------------------------------------------------+
     | This source file is subject to version 3.01 of the PHP license,      |
     | that is bundled with this package in the file LICENSE, and is        |
     | available through the world-wide-web at the following url:           |
     | http://www.php.net/license/3_01.txt                                  |
     | If you did not receive a copy of the PHP license and are unable to   |
     | obtain it through the world-wide-web, please send a note to          |
     | license@php.net so we can mail you a copy immediately.               |
     +----------------------------------------------------------------------+
  */
  
  #pragma once
  
  #include "hphp/runtime/vm/jit/tc.h"
  
  namespace HPHP { namespace jit { namespace tc {
  
  struct PrologueTranslator final : Translator {
    // Although the srckey (sk member of translator) knows the func,
    // it holds it as a const Func* and won't work for the mutations
    // required for publishing.
    Func* func;
    int nPassed;
    PrologueTranslator(Func* func, int nPassed,
                       TransKind kind = TransKind::Invalid)
      : Translator(
          SrcKey{
            func,
            func->getEntryForNumArgs(paramIndexHelper(func, nPassed)),
            SrcKey::PrologueTag{}
          },
          kind
        )
      , func(func)
      , nPassed(nPassed)
    {}
    int paramIndex() const;
    folly::Optional<TCA> getCached() override;
    void resetCached() override;
    void smashBackup() override;
    static int paramIndexHelper(const Func*, int);
  private:
    void computeKind() override;
    Annotations* getAnnotations() override { return nullptr; }
    void gen() override;
    void publishMetaImpl() override;
    void publishCodeImpl() override;
  };
  
  }}}
  