1 //===- CommonConfig.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 "llvm/ObjCopy/CommonConfig.h"
10
11 namespace llvm {
12 namespace objcopy {
13
14 Expected<NameOrPattern>
create(StringRef Pattern,MatchStyle MS,function_ref<Error (Error)> ErrorCallback)15 NameOrPattern::create(StringRef Pattern, MatchStyle MS,
16 function_ref<Error(Error)> ErrorCallback) {
17 switch (MS) {
18 case MatchStyle::Literal:
19 return NameOrPattern(Pattern);
20 case MatchStyle::Wildcard: {
21 SmallVector<char, 32> Data;
22 bool IsPositiveMatch = true;
23 if (Pattern[0] == '!') {
24 IsPositiveMatch = false;
25 Pattern = Pattern.drop_front();
26 }
27 Expected<GlobPattern> GlobOrErr = GlobPattern::create(Pattern);
28
29 // If we couldn't create it as a glob, report the error, but try again
30 // with a literal if the error reporting is non-fatal.
31 if (!GlobOrErr) {
32 if (Error E = ErrorCallback(GlobOrErr.takeError()))
33 return std::move(E);
34 return create(Pattern, MatchStyle::Literal, ErrorCallback);
35 }
36
37 return NameOrPattern(std::make_shared<GlobPattern>(*GlobOrErr),
38 IsPositiveMatch);
39 }
40 case MatchStyle::Regex: {
41 SmallVector<char, 32> Data;
42 return NameOrPattern(std::make_shared<Regex>(
43 ("^" + Pattern.ltrim('^').rtrim('$') + "$").toStringRef(Data)));
44 }
45 }
46 llvm_unreachable("Unhandled llvm.objcopy.MatchStyle enum");
47 }
48
49 } // end namespace objcopy
50 } // end namespace llvm
51