hphp/runtime/vm/type-alias-inl.h

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-2014 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 #ifndef incl_HPHP_TYPE_ALIAS_INL_H_
  18 #error "type-alias-inl.h should only be included by type-alias.h"
  19 #endif
  20
  21 namespace HPHP {
  22 ///////////////////////////////////////////////////////////////////////////////
  23 // Static constructors.
  24
  25 inline TypeAliasReq TypeAliasReq::Invalid() {
  26   TypeAliasReq req;
  27   req.invalid = true;
  28   return req;
  29 }
  30
  31 inline TypeAliasReq TypeAliasReq::From(const TypeAlias& alias) {
  32   TypeAliasReq req;
  33
  34   if (alias.any) {
  35     req.any  = true;
  36     req.name = alias.name;
  37   } else {
  38     assert(alias.kind != KindOfObject);
  39
  40     req.kind     = alias.kind;
  41     req.nullable = alias.nullable;
  42     req.name     = alias.name;
  43   }
  44   return req;
  45 }
  46
  47 inline TypeAliasReq TypeAliasReq::From(TypeAliasReq req,
  48                                        const TypeAlias& alias) {
  49   if (req.invalid) {
  50     // Do nothing.
  51   } else if (req.any) {
  52     req.name = alias.name;
  53   } else {
  54     req.nullable |= alias.nullable;
  55     req.name = alias.name;
  56   }
  57   return req;
  58 }
  59
  60 ///////////////////////////////////////////////////////////////////////////////
  61 // Comparison.
  62
  63 inline bool TypeAliasReq::same(const TypeAliasReq& req) const {
  64   return (invalid && req.invalid) ||
  65          (any && req.any) ||
  66          (kind     == req.kind &&
  67           nullable == req.nullable &&
  68           klass    == req.klass);
  69 }
  70
  71 inline bool operator==(const TypeAliasReq& l,
  72                        const TypeAliasReq& r) {
  73   return l.same(r);
  74 }
  75
  76 inline bool operator!=(const TypeAliasReq& l,
  77                        const TypeAliasReq& r) {
  78   return !l.same(r);
  79 }
  80
  81 ///////////////////////////////////////////////////////////////////////////////
  82 }