| 1 | //===--- AvoidReferenceCoroutineParametersCheck.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 "AvoidReferenceCoroutineParametersCheck.h" |
| 10 | #include "clang/AST/ASTContext.h" |
| 11 | #include "clang/ASTMatchers/ASTMatchFinder.h" |
| 12 | |
| 13 | using namespace clang::ast_matchers; |
| 14 | |
| 15 | namespace clang::tidy::cppcoreguidelines { |
| 16 | |
| 17 | void AvoidReferenceCoroutineParametersCheck::registerMatchers( |
| 18 | MatchFinder *Finder) { |
| 19 | Finder->addMatcher( |
| 20 | NodeMatch: functionDecl(unless(parameterCountIs(N: 0)), hasBody(InnerMatcher: coroutineBodyStmt())) |
| 21 | .bind(ID: "fnt"), |
| 22 | Action: this); |
| 23 | } |
| 24 | |
| 25 | void AvoidReferenceCoroutineParametersCheck::check( |
| 26 | const MatchFinder::MatchResult &Result) { |
| 27 | const auto *Function = Result.Nodes.getNodeAs<FunctionDecl>(ID: "fnt"); |
| 28 | for (const ParmVarDecl *Param : Function->parameters()) { |
| 29 | if (!Param->getType().getCanonicalType()->isReferenceType()) |
| 30 | continue; |
| 31 | |
| 32 | diag(Param->getBeginLoc(), "coroutine parameters should not be references"); |
| 33 | } |
| 34 | } |
| 35 | |
| 36 | } // namespace clang::tidy::cppcoreguidelines |
| 37 |