clang-tools 10.0.0

NoAssemblerCheck.cpp
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1 //===--- NoAssemblerCheck.cpp - clang-tidy---------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "NoAssemblerCheck.h"
10 #include "clang/AST/ASTContext.h"
11 #include "clang/ASTMatchers/ASTMatchFinder.h"
12
13 using namespace clang::ast_matchers;
14
15 namespace clang {
16 namespace tidy {
17 namespace hicpp {
18
19 namespace {
20 AST_MATCHER(VarDecl, isAsm) { return Node.hasAttr<clang::AsmLabelAttr>(); }
21 const ast_matchers::internal::VariadicDynCastAllOfMatcher<Decl,
22 FileScopeAsmDecl>
23 fileScopeAsmDecl;
24 } // namespace
25
26 void NoAssemblerCheck::registerMatchers(MatchFinder *Finder) {
27 Finder->addMatcher(asmStmt().bind("asm-stmt"), this);
28 Finder->addMatcher(fileScopeAsmDecl().bind("asm-file-scope"), this);
29 Finder->addMatcher(varDecl(isAsm()).bind("asm-var"), this);
30 }
31
32 void NoAssemblerCheck::check(const MatchFinder::MatchResult &Result) {
33 SourceLocation ASMLocation;
34 if (const auto *ASM = Result.Nodes.getNodeAs<AsmStmt>("asm-stmt"))
35 ASMLocation = ASM->getAsmLoc();
36 else if (const auto *ASM =
37 Result.Nodes.getNodeAs<FileScopeAsmDecl>("asm-file-scope"))
38 ASMLocation = ASM->getAsmLoc();
39 else if (const auto *ASM = Result.Nodes.getNodeAs<VarDecl>("asm-var"))
40 ASMLocation = ASM->getLocation();
41 else
42 llvm_unreachable("Unhandled case in matcher.");
43
44 diag(ASMLocation, "do not use inline assembler in safety-critical code");
45 }
46
47 } // namespace hicpp
48 } // namespace tidy
49 } // namespace clang
clang::ast_matchers
Definition: AbseilMatcher.h:14
Decl
const FunctionDecl * Decl
Definition: AvoidBindCheck.cpp:93
NoAssemblerCheck.h
clang::ast_matchers::AST_MATCHER
AST_MATCHER(Expr, isMacroID)
Definition: PreferIsaOrDynCastInConditionalsCheck.cpp:18
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition: ApplyReplacements.h:27