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//===--- AvoidReferenceCoroutineParametersCheck.cpp - clang-tidy ----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "AvoidReferenceCoroutineParametersCheck.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
using namespace clang::ast_matchers;
namespace clang::tidy::cppcoreguidelines {
void AvoidReferenceCoroutineParametersCheck::registerMatchers(
MatchFinder *Finder) {
auto IsCoroMatcher =
hasDescendant(expr(anyOf(coyieldExpr(), coreturnStmt(), coawaitExpr())));
Finder->addMatcher(parmVarDecl(hasType(type(referenceType())),
hasAncestor(functionDecl(IsCoroMatcher)))
.bind("param"),
this);
}
void AvoidReferenceCoroutineParametersCheck::check(
const MatchFinder::MatchResult &Result) {
if (const auto *Param = Result.Nodes.getNodeAs<ParmVarDecl>("param")) {
diag(Param->getBeginLoc(), "coroutine parameters should not be references");
}
}
} // namespace clang::tidy::cppcoreguidelines
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