DiagnosticManager.cpp revision 355940 
1//===-- DiagnosticManager.cpp -----------------------------------*- C++ -*-===//
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#include "lldb/Expression/DiagnosticManager.h"
10
11#include "llvm/Support/ErrorHandling.h"
12
13#include "lldb/Utility/Log.h"
14#include "lldb/Utility/StreamString.h"
15
16using namespace lldb_private;
17
18void DiagnosticManager::Dump(Log *log) {
19  if (!log)
20    return;
21
22  std::string str = GetString();
23
24  // GetString() puts a separator after each diagnostic. We want to remove the
25  // last '\n' because log->PutCString will add one for us.
26
27  if (str.size() && str.back() == '\n') {
28    str.pop_back();
29  }
30
31  log->PutCString(str.c_str());
32}
33
34static const char *StringForSeverity(DiagnosticSeverity severity) {
35  switch (severity) {
36  // this should be exhaustive
37  case lldb_private::eDiagnosticSeverityError:
38    return "error: ";
39  case lldb_private::eDiagnosticSeverityWarning:
40    return "warning: ";
41  case lldb_private::eDiagnosticSeverityRemark:
42    return "";
43  }
44  llvm_unreachable("switch needs another case for DiagnosticSeverity enum");
45}
46
47std::string DiagnosticManager::GetString(char separator) {
48  std::string ret;
49
50  for (const Diagnostic *diagnostic : Diagnostics()) {
51    ret.append(StringForSeverity(diagnostic->GetSeverity()));
52    ret.append(diagnostic->GetMessage());
53    ret.push_back(separator);
54  }
55
56  return ret;
57}
58
59size_t DiagnosticManager::Printf(DiagnosticSeverity severity,
60                                 const char *format, ...) {
61  StreamString ss;
62
63  va_list args;
64  va_start(args, format);
65  size_t result = ss.PrintfVarArg(format, args);
66  va_end(args);
67
68  AddDiagnostic(ss.GetString(), severity, eDiagnosticOriginLLDB);
69
70  return result;
71}
72
73size_t DiagnosticManager::PutString(DiagnosticSeverity severity,
74                                    llvm::StringRef str) {
75  if (str.empty())
76    return 0;
77  AddDiagnostic(str, severity, eDiagnosticOriginLLDB);
78  return str.size();
79}
80
81void DiagnosticManager::CopyDiagnostics(DiagnosticManager &otherDiagnostics) {
82  for (const DiagnosticList::value_type &other_diagnostic:
83       otherDiagnostics.Diagnostics()) {
84    AddDiagnostic(
85        other_diagnostic->GetMessage(), other_diagnostic->GetSeverity(),
86        other_diagnostic->getKind(), other_diagnostic->GetCompilerID());
87  }
88}
89