clang-tools 20.0.0git
AvoidReferenceCoroutineParametersCheck.cpp
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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
10#include "clang/AST/ASTContext.h"
11#include "clang/ASTMatchers/ASTMatchFinder.h"
12
13using namespace clang::ast_matchers;
14
16
18 MatchFinder *Finder) {
19 Finder->addMatcher(
20 functionDecl(unless(parameterCountIs(0)), hasBody(coroutineBodyStmt()))
21 .bind("fnt"),
22 this);
23}
24
26 const MatchFinder::MatchResult &Result) {
27 const auto *Function = Result.Nodes.getNodeAs<FunctionDecl>("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
DiagnosticBuilder diag(SourceLocation Loc, StringRef Description, DiagnosticIDs::Level Level=DiagnosticIDs::Warning)
Add a diagnostic with the check's name.
void registerMatchers(ast_matchers::MatchFinder *Finder) override
Override this to register AST matchers with Finder.
void check(const ast_matchers::MatchFinder::MatchResult &Result) override
ClangTidyChecks that register ASTMatchers should do the actual work in here.