hphp/runtime/vm/runtime-compiler.cpp

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-present Facebook, Inc. (http://www.facebook.com)  |
   6    +----------------------------------------------------------------------+
   7    | This source file is subject to version 3.01 of the PHP license,      |
   8    | that is bundled with this package in the file LICENSE, and is        |
   9    | available through the world-wide-web at the following url:           |
  10    | http://www.php.net/license/3_01.txt                                  |
  11    | If you did not receive a copy of the PHP license and are unable to   |
  12    | obtain it through the world-wide-web, please send a note to          |
  13    | license@php.net so we can mail you a copy immediately.               |
  14    +----------------------------------------------------------------------+
  15 */
  16
  17 #include "hphp/runtime/vm/runtime-compiler.h"
  18 #include "hphp/runtime/vm/native.h"
  19 #include "hphp/runtime/vm/repo.h"
  20 #include "hphp/runtime/base/static-string-table.h"
  21 #include "hphp/runtime/base/unit-cache.h"
  22 #include "hphp/zend/zend-string.h"
  23 #include "hphp/util/assertions.h"
  24 #include "hphp/util/sha1.h"
  25 #include <folly/Range.h>
  26
  27 namespace HPHP {
  28
  29 TRACE_SET_MOD(runtime);
  30
  31 CompileStringFn g_hphp_compiler_parse;
  32
  33 void hphp_compiler_init() {
  34   g_hphp_compiler_parse(nullptr, 0, SHA1(), nullptr, Native::s_noNativeFuncs,
  35                         nullptr, false, RepoOptions::defaults());
  36 }
  37
  38 Unit* compile_file(const char* s, size_t sz, const SHA1& sha1,
  39                    const char* fname, const Native::FuncTable& nativeFuncs,
  40                    const RepoOptions& options, Unit** releaseUnit) {
  41   return g_hphp_compiler_parse(s, sz, sha1, fname, nativeFuncs, releaseUnit,
  42                                false, options);
  43 }
  44
  45 Unit* compile_string(const char* s,
  46                      size_t sz,
  47                      const char* fname,
  48                      const Native::FuncTable& nativeFuncs,
  49                      const RepoOptions& options,
  50                      bool forDebuggerEval) {
  51   auto const name = fname ? fname : "";
  52   auto const sha1 = SHA1{
  53     mangleUnitSha1(string_sha1(folly::StringPiece{s, sz}), name, options)};
  54   if (auto u = Repo::get().loadUnit(name, sha1, nativeFuncs).release()) {
  55     return u;
  56   }
  57   // NB: fname needs to be long-lived if generating a bytecode repo because it
  58   // can be cached via a Location ultimately contained by ErrorInfo for printing
  59   // code errors.
  60   return g_hphp_compiler_parse(s, sz, sha1, fname, nativeFuncs, nullptr,
  61                                forDebuggerEval, options);
  62 }
  63
  64 Unit* compile_systemlib_string(const char* s, size_t sz, const char* fname,
  65                                const Native::FuncTable& nativeFuncs) {
  66   assertx(fname[0] == '/' && fname[1] == ':');
  67   if (RuntimeOption::RepoAuthoritative) {
  68     if (auto u = lookupSyslibUnit(makeStaticString(fname), nativeFuncs)) {
  69       return u;
  70     }
  71   }
  72   return compile_string(s, sz, fname, nativeFuncs, RepoOptions::defaults());
  73 }
  74
  75 Unit* compile_debugger_string(
  76   const char* s, size_t sz, const RepoOptions& options
  77 ) {
  78   return compile_string(
  79     s,
  80     sz,
  81     nullptr,
  82     Native::s_noNativeFuncs,
  83     options,
  84     true
  85   );
  86 }
  87
  88 }