clang/lib/Sema/DelayedDiagnostic.cpp

   1 //===- DelayedDiagnostic.cpp - Delayed declarator diagnostics -------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file defines the DelayedDiagnostic class implementation, which
  10 // is used to record diagnostics that are being conditionally produced
  11 // during declarator parsing.
  12 //
  13 // This file also defines AccessedEntity.
  14 //
  15 //===----------------------------------------------------------------------===//
  16
  17 #include "clang/Sema/DelayedDiagnostic.h"
  18 #include <cstring>
  19
  20 using namespace clang;
  21 using namespace sema;
  22
  23 DelayedDiagnostic
  24 DelayedDiagnostic::makeAvailability(AvailabilityResult AR,
  25                                     ArrayRef<SourceLocation> Locs,
  26                                     const NamedDecl *ReferringDecl,
  27                                     const NamedDecl *OffendingDecl,
  28                                     const ObjCInterfaceDecl *UnknownObjCClass,
  29                                     const ObjCPropertyDecl  *ObjCProperty,
  30                                     StringRef Msg,
  31                                     bool ObjCPropertyAccess) {
  32   assert(!Locs.empty());
  33   DelayedDiagnostic DD;
  34   DD.Kind = Availability;
  35   DD.Triggered = false;
  36   DD.Loc = Locs.front();
  37   DD.AvailabilityData.ReferringDecl = ReferringDecl;
  38   DD.AvailabilityData.OffendingDecl = OffendingDecl;
  39   DD.AvailabilityData.UnknownObjCClass = UnknownObjCClass;
  40   DD.AvailabilityData.ObjCProperty = ObjCProperty;
  41   char *MessageData = nullptr;
  42   if (!Msg.empty()) {
  43     MessageData = new char [Msg.size()];
  44     memcpy(MessageData, Msg.data(), Msg.size());
  45   }
  46   DD.AvailabilityData.Message = MessageData;
  47   DD.AvailabilityData.MessageLen = Msg.size();
  48
  49   DD.AvailabilityData.SelectorLocs = new SourceLocation[Locs.size()];
  50   memcpy(DD.AvailabilityData.SelectorLocs, Locs.data(),
  51          sizeof(SourceLocation) * Locs.size());
  52   DD.AvailabilityData.NumSelectorLocs = Locs.size();
  53
  54   DD.AvailabilityData.AR = AR;
  55   DD.AvailabilityData.ObjCPropertyAccess = ObjCPropertyAccess;
  56   return DD;
  57 }
  58
  59 void DelayedDiagnostic::Destroy() {
  60   switch (Kind) {
  61   case Access:
  62     getAccessData().~AccessedEntity();
  63     break;
  64
  65   case Availability:
  66     delete[] AvailabilityData.Message;
  67     delete[] AvailabilityData.SelectorLocs;
  68     break;
  69
  70   case ForbiddenType:
  71     break;
  72   }
  73 }