1//===- ErrorCollector.cpp -------------------------------------------------===//
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 "ErrorCollector.h"
10#include "llvm/Support/Errc.h"
11#include "llvm/Support/Error.h"
12#include "llvm/Support/WithColor.h"
13#include "llvm/Support/raw_ostream.h"
14#include <vector>
15
16using namespace llvm;
17using namespace llvm::ifs;
18
19void ErrorCollector::escalateToFatal() { ErrorsAreFatal = true; }
20
21void ErrorCollector::addError(Error &&Err, StringRef Tag) {
22 if (Err) {
23 Errors.push_back(x: std::move(Err));
24 Tags.push_back(x: Tag.str());
25 }
26}
27
28Error ErrorCollector::makeError() {
29 // TODO: Make this return something (an AggregateError?) that gives more
30 // individual control over each error and which might be of interest.
31 Error JoinedErrors = Error::success();
32 for (Error &E : Errors) {
33 JoinedErrors = joinErrors(E1: std::move(JoinedErrors), E2: std::move(E));
34 }
35 Errors.clear();
36 Tags.clear();
37 return JoinedErrors;
38}
39
40void ErrorCollector::log(raw_ostream &OS) {
41 OS << "Encountered multiple errors:\n";
42 for (size_t i = 0; i < Errors.size(); ++i) {
43 WithColor::error(OS) << "(" << Tags[i] << ") " << Errors[i];
44 if (i != Errors.size() - 1)
45 OS << "\n";
46 }
47}
48
49bool ErrorCollector::allErrorsHandled() const { return Errors.empty(); }
50
51ErrorCollector::~ErrorCollector() {
52 if (ErrorsAreFatal && !allErrorsHandled())
53 fatalUnhandledError();
54
55 for (Error &E : Errors) {
56 consumeError(Err: std::move(E));
57 }
58}
59
60[[noreturn]] void ErrorCollector::fatalUnhandledError() {
61 errs() << "Program aborted due to unhandled Error(s):\n";
62 log(OS&: errs());
63 errs() << "\n";
64 abort();
65}
66