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   if (prologue()) return "Prologue";
  27   if (funcEntry()) return "FuncEntry";
  28   auto const f = func();
  29   return instrToString(f->at(offset()), f);
  30 }
  31
  32 std::string show(SrcKey sk) {
  33   auto func = sk.func();
  34   auto unit = sk.unit();
  35   const char *filepath = "*anonFile*";
  36   if (unit->origFilepath()->data() && unit->origFilepath()->size()) {
  37     filepath = unit->origFilepath()->data();
  38   }
  39   return folly::sformat("{}:{} in {}(id 0x{:#x})@{: >6}{}{}{}{}",
  40                         filepath, sk.lineNumber(),
  41                         func->fullName()->data(),
  42                         sk.funcID().toInt(), sk.printableOffset(),
  43                         resumeModeShortName(sk.resumeMode()),
  44                         sk.hasThis()  ? "t" : "",
  45                         sk.prologue() ? "p" : "",
  46                         sk.funcEntry() ? "e" : "");
  47 }
  48
  49 std::string showShort(SrcKey sk) {
  50   if (!sk.valid()) return "<invalid SrcKey>";
  51   return folly::sformat(
  52     "{}(id {:#x})@{}{}{}{}{}",
  53     sk.func()->fullName(),
  54     sk.funcID(),
  55     sk.printableOffset(),
  56     resumeModeShortName(sk.resumeMode()),
  57     sk.hasThis()  ? "t" : "",
  58     sk.prologue() ? "p" : "",
  59     sk.funcEntry() ? "e" : ""
  60   );
  61 }
  62
  63 void sktrace(SrcKey sk, const char *fmt, ...) {
  64   if (!Trace::enabled) return;
  65
  66   auto const inst = sk.showInst();
  67   Trace::trace("%s: %20s ", show(sk).c_str(), inst.c_str());
  68   va_list a;
  69   va_start(a, fmt);
  70   Trace::vtrace(fmt, a);
  71   va_end(a);
  72 }
  73
  74 std::string SrcKey::getSymbol() const {
  75   const Func* f = func();
  76
  77   if (f->isBuiltin()) {
  78     return f->fullName()->data();
  79   }
  80
  81   if (f->isMethod() && !f->cls()) {
  82     return folly::format(
  83       "{}::{}::line-{}",
  84       f->preClass()->name(),
  85       f->name(),
  86       lineNumber()
  87     ).str();
  88   }
  89
  90   // methods with a cls() and functions
  91   return folly::format(
  92     "{}::line-{}",
  93     f->fullName(),
  94     lineNumber()
  95   ).str();
  96 }
  97
  98 }