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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
//===- SMLoc.h - Source location for use with diagnostics -------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the SMLoc class. This class encapsulates a location in
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// source code for use in diagnostics.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_SMLOC_H
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#define LLVM_SUPPORT_SMLOC_H
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#include "llvm/ADT/None.h"
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#include <cassert>
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namespace llvm {
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/// Represents a location in source code.
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class SMLoc {
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const char *Ptr = nullptr;
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public:
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SMLoc() = default;
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bool isValid() const { return Ptr != nullptr; }
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bool operator==(const SMLoc &RHS) const { return RHS.Ptr == Ptr; }
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bool operator!=(const SMLoc &RHS) const { return RHS.Ptr != Ptr; }
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const char *getPointer() const { return Ptr; }
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static SMLoc getFromPointer(const char *Ptr) {
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SMLoc L;
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L.Ptr = Ptr;
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return L;
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}
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};
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/// Represents a range in source code.
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///
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/// SMRange is implemented using a half-open range, as is the convention in C++.
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/// In the string "abc", the range [1,3) represents the substring "bc", and the
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/// range [2,2) represents an empty range between the characters "b" and "c".
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class SMRange {
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public:
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SMLoc Start, End;
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SMRange() = default;
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SMRange(NoneType) {}
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SMRange(SMLoc St, SMLoc En) : Start(St), End(En) {
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assert(Start.isValid() == End.isValid() &&
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"Start and End should either both be valid or both be invalid!");
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}
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bool isValid() const { return Start.isValid(); }
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};
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} // end namespace llvm
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#endif // LLVM_SUPPORT_SMLOC_H
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