c9cedde7c0
<a9070f22a2> "[clang][NFC] Refactor `CXXConstructExpr::ConstructionKind`", <c23aaa4103> "[clang][NFC] Refactor `CharacterLiteral::CharacterKind`", <3e6ce58701> "[clang][NFC] Refactor `StringLiteral::StringKind`", <edd690b02e> "[clang][NFC] Refactor `TagTypeKind` (#71160)" Change-Id: Ice802f6d662494781ad22fcf11ea5006de918254 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/158983 Tested-by: Jenkins Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
103 lines
3.1 KiB
C++
103 lines
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#ifndef LO_CLANG_SHARED_PLUGINS
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#include "check.hxx"
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#include "compat.hxx"
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#include "plugin.hxx"
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namespace {
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bool isAsciiCharacterLiteral(Expr const * expr) {
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if (auto const e = dyn_cast<CharacterLiteral>(expr)) {
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return e->getKind() == compat::CharacterLiteralKind::Ascii;
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}
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return false;
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}
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class SalUnicodeLiteral final:
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public loplugin::FilteringPlugin<SalUnicodeLiteral>
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{
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public:
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explicit SalUnicodeLiteral(loplugin::InstantiationData const & data):
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FilteringPlugin(data) {}
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bool VisitCXXStaticCastExpr(CXXStaticCastExpr const * expr) {
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check(expr);
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return true;
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}
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bool VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr const * expr) {
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check(expr);
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return true;
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}
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bool VisitCStyleCastExpr(CStyleCastExpr const * expr) {
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check(expr);
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return true;
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}
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bool preRun() override {
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return compiler.getLangOpts().CPlusPlus
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&& compiler.getPreprocessor().getIdentifierInfo(
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"LIBO_INTERNAL_ONLY")->hasMacroDefinition();
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}
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void run() override {
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if (preRun())
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TraverseDecl(compiler.getASTContext().getTranslationUnitDecl());
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}
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private:
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void check(ExplicitCastExpr const * expr) {
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if (ignoreLocation(expr)
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|| isInUnoIncludeFile(expr->getExprLoc()))
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//TODO: '#ifdef LIBO_INTERNAL_ONLY' within UNO include files
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{
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return;
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}
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for (auto t = expr->getTypeAsWritten();;) {
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auto const tt = t->getAs<TypedefType>();
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if (tt == nullptr) {
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return;
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}
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if (loplugin::TypeCheck(t).Typedef("sal_Unicode")
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.GlobalNamespace())
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{
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break;
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}
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t = tt->desugar();
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}
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auto const e1 = expr->getSubExprAsWritten();
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auto const loc = e1->getBeginLoc();
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if (loc.isMacroID()
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&& compiler.getSourceManager().isAtStartOfImmediateMacroExpansion(
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loc))
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{
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return;
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}
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auto const e2 = e1->IgnoreParenImpCasts();
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if (isAsciiCharacterLiteral(e2) || isa<IntegerLiteral>(e2)) {
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report(
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DiagnosticsEngine::Warning,
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("in LIBO_INTERNAL_ONLY code, replace literal cast to %0 with a"
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" u'...' char16_t character literal"),
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e2->getExprLoc())
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<< expr->getTypeAsWritten() << expr->getSourceRange();
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}
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}
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};
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static loplugin::Plugin::Registration<SalUnicodeLiteral> salunicodeliteral("salunicodeliteral");
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} // namespace
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#endif // LO_CLANG_SHARED_PLUGINS
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/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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