mirror of
https://github.com/Gericom/teak-llvm.git
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7c7ea7d0ae
Summary: Ran clang-format on all .c/.cpp/.h files in clang-tools-extra. Excluded the test, unittests, clang-reorder-fields, include-fixer, modularize and pptrace directories. Reviewers: klimek, alexfh Subscribers: nemanjai Tags: #clang-tools-extra Differential Revision: https://reviews.llvm.org/D26329 llvm-svn: 286221
60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
//===--- ProBoundsPointerArithmeticCheck.cpp - clang-tidy------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "ProBoundsPointerArithmeticCheck.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/ASTMatchers/ASTMatchFinder.h"
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using namespace clang::ast_matchers;
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namespace clang {
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namespace tidy {
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namespace cppcoreguidelines {
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void ProBoundsPointerArithmeticCheck::registerMatchers(MatchFinder *Finder) {
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if (!getLangOpts().CPlusPlus)
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return;
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// Flag all operators +, -, +=, -=, ++, -- that result in a pointer
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Finder->addMatcher(
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binaryOperator(
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anyOf(hasOperatorName("+"), hasOperatorName("-"),
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hasOperatorName("+="), hasOperatorName("-=")),
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hasType(pointerType()),
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unless(hasLHS(ignoringImpCasts(declRefExpr(to(isImplicit()))))))
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.bind("expr"),
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this);
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Finder->addMatcher(
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unaryOperator(anyOf(hasOperatorName("++"), hasOperatorName("--")),
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hasType(pointerType()))
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.bind("expr"),
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this);
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// Array subscript on a pointer (not an array) is also pointer arithmetic
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Finder->addMatcher(
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arraySubscriptExpr(
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hasBase(ignoringImpCasts(
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anyOf(hasType(pointerType()),
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hasType(decayedType(hasDecayedType(pointerType())))))))
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.bind("expr"),
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this);
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}
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void ProBoundsPointerArithmeticCheck::check(
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const MatchFinder::MatchResult &Result) {
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const auto *MatchedExpr = Result.Nodes.getNodeAs<Expr>("expr");
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diag(MatchedExpr->getExprLoc(), "do not use pointer arithmetic");
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}
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} // namespace cppcoreguidelines
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} // namespace tidy
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} // namespace clang
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