hphp/runtime/vm/srckey.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/srckey.h"
  18
  19 #include <folly/Format.h>
  20
  21 #include "hphp/runtime/vm/hhbc.h"
  22
  23 namespace HPHP {
  24
  25 std::string SrcKey::showInst() const {
  26   auto const f = func();
  27   return instrToString(f->at(offset()), f);
  28 }
  29
  30 std::string show(SrcKey sk) {
  31   auto func = sk.func();
  32   auto unit = sk.unit();
  33   const char *filepath = "*anonFile*";
  34   if (unit->filepath()->data() && unit->filepath()->size()) {
  35     filepath = unit->filepath()->data();
  36   }
  37   return folly::sformat("{}:{} in {}(id 0x{:#x})@{: >6}{}{}",
  38                         filepath, unit->getLineNumber(sk.offset()),
  39                         func->fullName()->data(),
  40                         (uint32_t)sk.funcID(), sk.offset(),
  41                         resumeModeShortName(sk.resumeMode()),
  42                         sk.hasThis()  ? "t" : "",
  43                         sk.prologue() ? "p" : "");
  44 }
  45
  46 std::string showShort(SrcKey sk) {
  47   if (!sk.valid()) return "<invalid SrcKey>";
  48   return folly::sformat(
  49     "{}(id {:#x})@{}{}{}{}",
  50     sk.func()->fullName(),
  51     sk.funcID(),
  52     sk.offset(),
  53     resumeModeShortName(sk.resumeMode()),
  54     sk.hasThis()  ? "t" : "",
  55     sk.prologue() ? "p" : ""
  56   );
  57 }
  58
  59 void sktrace(SrcKey sk, const char *fmt, ...) {
  60   if (!Trace::enabled) return;
  61
  62   auto const f = sk.func();
  63   auto inst = instrToString(f->at(sk.offset()), f);
  64   Trace::trace("%s: %20s ", show(sk).c_str(), inst.c_str());
  65   va_list a;
  66   va_start(a, fmt);
  67   Trace::vtrace(fmt, a);
  68   va_end(a);
  69 }
  70
  71 std::string SrcKey::getSymbol() const {
  72   const Func* f = func();
  73   const Unit* u = unit();
  74
  75   if (f->isBuiltin()) {
  76     return f->fullName()->data();
  77   }
  78
  79   if (f->isMethod() && !f->cls()) {
  80     return folly::format(
  81       "{}::{}::line-{}",
  82       f->preClass()->name(),
  83       f->name(),
  84       u->getLineNumber(offset())
  85     ).str();
  86   }
  87
  88   // methods with a cls() and functions
  89   return folly::format(
  90     "{}::line-{}",
  91     f->fullName(),
  92     u->getLineNumber(offset())
  93   ).str();
  94 }
  95
  96 }