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
20using namespace clang;
21using namespace sema;
22
23DelayedDiagnostic
24DelayedDiagnostic::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
59void 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}
74