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