43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
//===--- DesignatedInitializers.h - clang-tidy ------------------*- 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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/// \file
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/// This file provides utilities for designated initializers.
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///
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//===----------------------------------------------------------------------===//
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#include "clang/AST/Expr.h"
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#include "clang/Basic/SourceLocation.h"
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#include "llvm/ADT/DenseMap.h"
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namespace clang::tidy::utils {
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/// Get designators describing the elements of a (syntactic) init list.
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///
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/// Given for example the type
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/// \code
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/// struct S { int i, j; };
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/// \endcode
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/// and the definition
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/// \code
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/// S s{1, 2};
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/// \endcode
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/// calling `getUnwrittenDesignators` for the initializer list expression
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/// `{1, 2}` would produce the map `{loc(1): ".i", loc(2): ".j"}`.
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///
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/// It does not produce designators for any explicitly-written nested lists,
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/// e.g. `{1, .j=2}` would only return `{loc(1): ".i"}`.
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///
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/// It also considers structs with fields of record types like
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/// `struct T { S s; };`. In this case, there would be designators of the
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/// form `.s.i` and `.s.j` in the returned map.
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llvm::DenseMap<clang::SourceLocation, std::string>
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getUnwrittenDesignators(const clang::InitListExpr *Syn);
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} // namespace clang::tidy::utils
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