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1 //===--- NoMallocCheck.h - clang-tidy----------------------------*- C++ -*-===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8
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9 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_NO_MALLOC_H
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10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_NO_MALLOC_H
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11
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12 #include "../ClangTidy.h"
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13 #include "clang/AST/ASTContext.h"
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14 #include "clang/ASTMatchers/ASTMatchFinder.h"
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15
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16 namespace clang {
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17 namespace tidy {
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18 namespace cppcoreguidelines {
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19
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20 /// This checker is concerned with C-style memory management and suggest modern
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21 /// alternatives to it.
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22 /// The check is only enabled in C++. For analyzing malloc calls see Clang
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23 /// Static Analyzer - unix.Malloc.
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24 ///
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25 /// For the user-facing documentation see:
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26 /// http://clang.llvm.org/extra/clang-tidy/checks/cppcoreguidelines-no-malloc.html
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27 class NoMallocCheck : public ClangTidyCheck {
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28 public:
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29 /// Construct Checker and read in configuration for function names.
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30 NoMallocCheck(StringRef Name, ClangTidyContext *Context)
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31 : ClangTidyCheck(Name, Context),
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32 AllocList(Options.get("Allocations", "::malloc;::calloc")),
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33 ReallocList(Options.get("Reallocations", "::realloc")),
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34 DeallocList(Options.get("Deallocations", "::free")) {}
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35
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36 bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
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37 return LangOpts.CPlusPlus;
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38 }
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39
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40 /// Make configuration of checker discoverable.
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41 void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
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42
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43 /// Registering for malloc, calloc, realloc and free calls.
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44 void registerMatchers(ast_matchers::MatchFinder *Finder) override;
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45
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46 /// Checks matched function calls and gives suggestion to modernize the code.
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47 void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
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48
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49 private:
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50 /// Semicolon-separated list of fully qualified names of memory allocation
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51 /// functions the check warns about. Defaults to `::malloc;::calloc`.
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52 const std::string AllocList;
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53 /// Semicolon-separated list of fully qualified names of memory reallocation
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54 /// functions the check warns about. Defaults to `::realloc`.
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55 const std::string ReallocList;
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56 /// Semicolon-separated list of fully qualified names of memory deallocation
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57 /// functions the check warns about. Defaults to `::free`.
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58 const std::string DeallocList;
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59 };
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60
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61 } // namespace cppcoreguidelines
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62 } // namespace tidy
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63 } // namespace clang
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64
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65 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_NO_MALLOC_H
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