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//===- MultilibBuilder.h
//-----------------------------------------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_DRIVER_MULTILIBBUILDER_H
#define LLVM_CLANG_DRIVER_MULTILIBBUILDER_H
#include "clang/Driver/Multilib.h"
namespace clang {
namespace driver {
/// This corresponds to a single GCC multilib, or a segment of one controlled
/// by a command line flag. This class can be used to create a Multilib, and
/// contains helper functions to mutate it before creating a Multilib instance
/// with makeMultilib().
class MultilibBuilder {
public:
using flags_list = std::vector<std::string>;
private:
std::string GCCSuffix;
std::string OSSuffix;
std::string IncludeSuffix;
flags_list Flags;
public:
MultilibBuilder(StringRef GCCSuffix, StringRef OSSuffix,
StringRef IncludeSuffix);
/// Initializes GCCSuffix, OSSuffix & IncludeSuffix to the same value.
MultilibBuilder(StringRef Suffix = {});
/// Get the detected GCC installation path suffix for the multi-arch
/// target variant. Always starts with a '/', unless empty
const std::string &gccSuffix() const {
assert(GCCSuffix.empty() ||
(StringRef(GCCSuffix).front() == '/' && GCCSuffix.size() > 1));
return GCCSuffix;
}
/// Set the GCC installation path suffix.
MultilibBuilder &gccSuffix(StringRef S);
/// Get the detected os path suffix for the multi-arch
/// target variant. Always starts with a '/', unless empty
const std::string &osSuffix() const {
assert(OSSuffix.empty() ||
(StringRef(OSSuffix).front() == '/' && OSSuffix.size() > 1));
return OSSuffix;
}
/// Set the os path suffix.
MultilibBuilder &osSuffix(StringRef S);
/// Get the include directory suffix. Always starts with a '/', unless
/// empty
const std::string &includeSuffix() const {
assert(IncludeSuffix.empty() || (StringRef(IncludeSuffix).front() == '/' &&
IncludeSuffix.size() > 1));
return IncludeSuffix;
}
/// Set the include directory suffix
MultilibBuilder &includeSuffix(StringRef S);
/// Get the flags that indicate or contraindicate this multilib's use
/// All elements begin with either '-' or '!'
const flags_list &flags() const { return Flags; }
flags_list &flags() { return Flags; }
/// Add a flag to the flags list
/// \p Flag must be a flag accepted by the driver.
/// \p Disallow defines whether the flag is negated and therefore disallowed.
MultilibBuilder &flag(StringRef Flag, bool Disallow = false);
Multilib makeMultilib() const;
/// Check whether any of the 'against' flags contradict the 'for' flags.
bool isValid() const;
/// Check whether the default is selected
bool isDefault() const {
return GCCSuffix.empty() && OSSuffix.empty() && IncludeSuffix.empty();
}
};
/// This class can be used to create a MultilibSet, and contains helper
/// functions to add combinations of multilibs before creating a MultilibSet
/// instance with makeMultilibSet().
class MultilibSetBuilder {
public:
using multilib_list = std::vector<MultilibBuilder>;
MultilibSetBuilder() = default;
/// Add an optional Multilib segment
MultilibSetBuilder &Maybe(const MultilibBuilder &M);
/// Add a set of mutually incompatible Multilib segments
MultilibSetBuilder &Either(const MultilibBuilder &M1,
const MultilibBuilder &M2);
MultilibSetBuilder &Either(const MultilibBuilder &M1,
const MultilibBuilder &M2,
const MultilibBuilder &M3);
MultilibSetBuilder &Either(const MultilibBuilder &M1,
const MultilibBuilder &M2,
const MultilibBuilder &M3,
const MultilibBuilder &M4);
MultilibSetBuilder &Either(const MultilibBuilder &M1,
const MultilibBuilder &M2,
const MultilibBuilder &M3,
const MultilibBuilder &M4,
const MultilibBuilder &M5);
MultilibSetBuilder &Either(ArrayRef<MultilibBuilder> Ms);
/// Filter out those Multilibs whose gccSuffix matches the given expression
MultilibSetBuilder &FilterOut(const char *Regex);
MultilibSet makeMultilibSet() const;
private:
multilib_list Multilibs;
};
} // namespace driver
} // namespace clang
#endif // LLVM_CLANG_DRIVER_MULTILIBBUILDER_H
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