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//===- CommonConfig.cpp ---------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/ObjCopy/CommonConfig.h"
namespace llvm {
namespace objcopy {
Expected<NameOrPattern>
NameOrPattern::create(StringRef Pattern, MatchStyle MS,
function_ref<Error(Error)> ErrorCallback) {
switch (MS) {
case MatchStyle::Literal:
return NameOrPattern(Pattern);
case MatchStyle::Wildcard: {
SmallVector<char, 32> Data;
bool IsPositiveMatch = true;
if (Pattern[0] == '!') {
IsPositiveMatch = false;
Pattern = Pattern.drop_front();
}
Expected<GlobPattern> GlobOrErr = GlobPattern::create(Pattern);
// If we couldn't create it as a glob, report the error, but try again
// with a literal if the error reporting is non-fatal.
if (!GlobOrErr) {
if (Error E = ErrorCallback(GlobOrErr.takeError()))
return std::move(E);
return create(Pattern, MatchStyle::Literal, ErrorCallback);
}
return NameOrPattern(std::make_shared<GlobPattern>(*GlobOrErr),
IsPositiveMatch);
}
case MatchStyle::Regex: {
SmallVector<char, 32> Data;
return NameOrPattern(std::make_shared<Regex>(
("^" + Pattern.ltrim('^').rtrim('$') + "$").toStringRef(Data)));
}
}
llvm_unreachable("Unhandled llvm.objcopy.MatchStyle enum");
}
} // end namespace objcopy
} // end namespace llvm
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