| //===-- nullptr-convert/Matchers.h - Matchers for null casts ---*- C++ -*--===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \file |
| /// \brief This file contains the declarations for matcher-generating functions |
| /// and names for bound nodes found by AST matchers. |
| /// |
| //===----------------------------------------------------------------------===// |
| #ifndef LLVM_TOOLS_CLANG_TOOLS_EXTRA_CPP11_MIGRATE_USE_NULLPTR_MATCHERS_H |
| #define LLVM_TOOLS_CLANG_TOOLS_EXTRA_CPP11_MIGRATE_USE_NULLPTR_MATCHERS_H |
| |
| #include "clang/ASTMatchers/ASTMatchers.h" |
| |
| // Names to bind with matched expressions. |
| extern const char *ImplicitCastNode; |
| extern const char *CastSequence; |
| |
| /// \brief Create a matcher to find the implicit casts clang inserts |
| /// when writing null to a pointer. |
| /// |
| /// However, don't match those implicit casts that have explicit casts as |
| /// an ancestor. Explicit casts are handled by makeCastSequenceMatcher(). |
| clang::ast_matchers::StatementMatcher makeImplicitCastMatcher(); |
| |
| /// \brief Create a matcher that finds the head of a sequence of nested explicit |
| /// casts that have an implicit cast to null within. |
| /// |
| /// This matcher is necessary so that an entire sequence of explicit casts can |
| /// be replaced instead of just the inner-most implicit cast. |
| clang::ast_matchers::StatementMatcher makeCastSequenceMatcher(); |
| |
| #endif // LLVM_TOOLS_CLANG_TOOLS_EXTRA_CPP11_MIGRATE_USE_NULLPTR_MATCHERS_H |
