/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <algorithm>
#include <cassert>
#include <limits>
#include <set>
#include <string>
#include "compat.hxx"
#include "plugin.hxx"
//
// We don't like using C-style casts in C++ code. Similarly, warn about function-style casts (which
// are semantically equivalent to C-style casts) that are not semantically equivalent to static_cast
// and should rather be written as const_cast or reinterpret_cast.
//
namespace {
bool areSimilar(QualType type1, QualType type2) {
auto t1 = type1.getCanonicalType().getTypePtr();
auto t2 = type2.getCanonicalType().getTypePtr();
for (;;) {
if (t1->isPointerType()) {
if (!t2->isPointerType()) {
return false;
}
auto t1a = t1->getAs<clang::PointerType>();
auto t2a = t2->getAs<clang::PointerType>();
t1 = t1a->getPointeeType().getTypePtr();
t2 = t2a->getPointeeType().getTypePtr();
}
else if (t1->isMemberPointerType()) {
if (!t2->isMemberPointerType()) {
return false;
}
auto t1a = t1->getAs<MemberPointerType>();
auto t2a = t2->getAs<MemberPointerType>();
if (compat::getClass(t1a)->getCanonicalTypeInternal()
!= compat::getClass(t2a)->getCanonicalTypeInternal())
{
return false;
}
t1 = t1a->getPointeeType().getTypePtr();
t2 = t2a->getPointeeType().getTypePtr();
}
else if (t1->isConstantArrayType()) {
if (!t2->isConstantArrayType()) {
return false;
}
auto t1a =
static_cast<ConstantArrayType
const *>(
t1->getAsArrayTypeUnsafe());
auto t2a =
static_cast<ConstantArrayType
const *>(
t2->getAsArrayTypeUnsafe());
if (t1a->getSize() != t2a->getSize()) {
return false;
}
t1 = t1a->getElementType().getTypePtr();
t2 = t2a->getElementType().getTypePtr();
}
else if (t1->isIncompleteArrayType()) {
if (!t2->isIncompleteArrayType()) {
return false;
}
auto t1a =
static_cast<IncompleteArrayType
const *>(
t1->getAsArrayTypeUnsafe());
auto t2a =
static_cast<IncompleteArrayType
const *>(
t2->getAsArrayTypeUnsafe());
t1 = t1a->getElementType().getTypePtr();
t2 = t2a->getElementType().getTypePtr();
}
else {
return false;
}
if (t1 == t2) {
return true;
}
}
}
QualType resolvePointers(QualType type) {
while (type->isPointerType()) {
type = type->getAs<clang::PointerType>()->getPointeeType();
}
return type;
}
bool isLiteralLike(Expr
const * expr) {
expr = expr->IgnoreParenImpCasts();
if (isa<IntegerLiteral>(expr) || isa<CharacterLiteral>(expr) || isa<FloatingLiteral>(expr)
|| isa<ImaginaryLiteral>(expr) || isa<CXXBoolLiteralExpr>(expr)
|| isa<CXXNullPtrLiteralExpr>(expr) || isa<ObjCBoolLiteralExpr>(expr))
{
return true;
}
if (
auto const e = dyn_cast<DeclRefExpr>(expr)) {
auto const d = e->getDecl();
if (isa<EnumConstantDecl>(d)) {
return true;
}
if (
auto const v = dyn_cast<VarDecl>(d)) {
if (d->getType().isConstQualified()) {
if (
auto const init = v->getAnyInitializer()) {
return isLiteralLike(init);
}
}
}
return false;
}
if (
auto const e = dyn_cast<UnaryExprOrTypeTraitExpr>(expr)) {
auto const k = e->getKind();
return k == UETT_SizeOf || k == UETT_AlignOf;
}
if (
auto const e = dyn_cast<UnaryOperator>(expr)) {
auto const k = e->getOpcode();
if (k == UO_Plus || k == UO_Minus || k == UO_Not || k == UO_LNot) {
return isLiteralLike(e->getSubExpr());
}
return false;
}
if (
auto const e = dyn_cast<BinaryOperator>(expr)) {
auto const k = e->getOpcode();
if (k == BO_Mul || k == BO_Div || k == BO_Rem || k == BO_Add || k == BO_Sub || k == BO_Shl
|| k == BO_Shr || k == BO_And || k == BO_Xor || k == BO_Or)
{
return isLiteralLike(e->getLHS()) && isLiteralLike(e->getRHS());
}
return false;
}
if (
auto const e = dyn_cast<ExplicitCastExpr>(expr)) {
auto const t = e->getTypeAsWritten();
return (t->isArithmeticType() || t->isEnumeralType())
&& isLiteralLike(e->getSubExprAsWritten());
}
return false;
}
bool canBeUsedForFunctionalCast(TypeSourceInfo
const * info) {
// Must be <simple-type-specifier> or <typename-specifier>, let's approximate that here:
assert(info != nullptr);
auto const type = info->getType();
if (type.hasLocalQualifiers()) {
return false;
}
if (
auto const t = dyn_cast<BuiltinType>(type)) {
if (!(t->isInteger() || t->isFloatingPoint())) {
return false;
}
auto const loc = info->getTypeLoc().castAs<BuiltinTypeLoc>();
return
(
int(loc.hasWrittenSignSpec()) +
int(loc.hasWrittenWidthSpec())
+
int(loc.hasWrittenTypeSpec()))
== 1;
}
if (isa<TagType>(type) || isa<TemplateTypeParmType>(type) || isa<AutoType>(type)
|| isa<DecltypeType>(type) || isa<TypedefType>(type))
{
return true;
}
if (
auto const t = dyn_cast<ElaboratedType>(type)) {
return t->getKeyword() == compat::ElaboratedTypeKeyword::None;
}
return false;
}
class CStyleCast:
public loplugin::FilteringRewritePlugin<CStyleCast>
{
public:
explicit CStyleCast(loplugin::InstantiationData
const & data): FilteringRewritePl
ugin(data)
{}
virtual void run() override {
if (compiler.getLangOpts().CPlusPlus) {
TraverseDecl(compiler.getASTContext().getTranslationUnitDecl());
}
}
bool TraverseInitListExpr(InitListExpr * expr, DataRecursionQueue * queue = nullptr) {
return WalkUpFromInitListExpr(expr)
&& TraverseSynOrSemInitListExpr(
expr->isSemanticForm() ? expr : expr->getSemanticForm(), queue);
}
bool TraverseLinkageSpecDecl(LinkageSpecDecl * decl);
bool VisitCStyleCastExpr(const CStyleCastExpr * expr);
bool VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr const * expr);
private:
bool isConstCast(QualType from, QualType to);
bool isFromCIncludeFile(SourceLocation spellingLocation) const;
bool isSharedCAndCppCode(SourceLocation location) const;
bool isLastTokenOfImmediateMacroBodyExpansion(
SourceLocation loc, SourceLocation * macroEnd = nullptr) const;
bool rewriteArithmeticCast(CStyleCastExpr const * expr, char const ** replacement);
void reportCast(ExplicitCastExpr const * expr, char const * performsHint);
unsigned int externCContexts_ = 0;
std::set<SourceLocation> rewritten_;
// needed when rewriting in macros, in general to avoid "double code replacement, possible
// plugin error" warnings, and in particular to avoid adding multiple sets of parens around
// sub-exprs
std::set<CStyleCastExpr const *> rewrittenSubExprs_;
};
const char * recommendedFix(clang::CastKind ck) {
switch(ck) {
case CK_IntegralToPointer: return "reinterpret_cast";
case CK_PointerToIntegral: return "reinterpret_cast";
case CK_BaseToDerived: return "static_cast";
default: return nullptr;
}
}
bool CStyleCast::TraverseLinkageSpecDecl(LinkageSpecDecl * decl) {
assert(externCContexts_ != std::numeric_limits<unsigned int>::max()); //TODO
++externCContexts_;
bool ret = RecursiveASTVisitor::TraverseLinkageSpecDecl(decl);
assert(externCContexts_ != 0);
--externCContexts_;
return ret;
}
bool CStyleCast::VisitCStyleCastExpr(const CStyleCastExpr * expr) {
if (ignoreLocation(expr)) {
return true;
}
// casting to void is typically used when a parameter or field is only used in
// debug mode, and we want to eliminate an "unused" warning
if( expr->getCastKind() == CK_ToVoid ) {
return true;
}
if (isSharedCAndCppCode(expr->getBeginLoc())) {
return true;
}
char const * perf = nullptr;
if( expr->getCastKind() == CK_IntegralCast ) {
if (rewriteArithmeticCast(expr, &perf)) {
return true;
}
} else if( expr->getCastKind() == CK_NoOp ) {
if (!((expr->getSubExpr()->getType()->isPointerType()
&& expr->getType()->isPointerType())
|| expr->getTypeAsWritten()->isReferenceType()))
{
if (rewriteArithmeticCast(expr, &perf)) {
return true;
}
}
if (isConstCast(
expr->getSubExprAsWritten()->getType(),
expr->getTypeAsWritten()))
{
perf = "const_cast";
}
}
reportCast(expr, perf);
return true;
}
bool CStyleCast::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr const * expr) {
if (ignoreLocation(expr)) {
return true;
}
char const * perf = nullptr;
switch (expr->getCastKind()) {
case CK_ConstructorConversion:
case CK_Dependent: //TODO: really filter out all of these?
case CK_IntegralCast:
case CK_IntegralToBoolean:
case CK_ToVoid:
return true;
case CK_NoOp:
if (isConstCast(
expr->getSubExprAsWritten()->getType(),
expr->getTypeAsWritten()))
{
perf = "const_cast";
break;
}
return true; //TODO: really filter out all of these?
default:
break;
}
reportCast(expr, perf);
return true;
}
bool CStyleCast::isConstCast(QualType from, QualType to) {
if (to->isReferenceType()
&& to->getAs<ReferenceType>()->getPointeeType()->isObjectType())
{
if (!from->isObjectType()) {
return false;
}
from = compiler.getASTContext().getPointerType(from);
to = compiler.getASTContext().getPointerType(
to->getAs<ReferenceType>()->getPointeeType());
} else {
if (from->isArrayType()) {
from = compiler.getASTContext().getPointerType(
from->getAsArrayTypeUnsafe()->getElementType());
} else if (from->isFunctionType()) {
compiler.getASTContext().getPointerType(from);
}
}
return areSimilar(from, to);
}
bool CStyleCast::isFromCIncludeFile(SourceLocation spellingLocation) const {
return !compiler.getSourceManager().isInMainFile(spellingLocation)
&& compat::ends_with(
StringRef(compiler.getSourceManager().getPresumedLoc(spellingLocation).getFilename()),
".h");
}
bool CStyleCast::isSharedCAndCppCode(SourceLocation location) const {
while (compiler.getSourceManager().isMacroArgExpansion(location)) {
location = compiler.getSourceManager().getImmediateMacroCallerLoc(
location);
}
// Assume that code is intended to be shared between C and C++ if it comes
// from an include file ending in .h, and is either in an extern "C" context
// or the body of a macro definition:
return
isFromCIncludeFile(compiler.getSourceManager().getSpellingLoc(location))
&& (externCContexts_ != 0
|| compiler.getSourceManager().isMacroBodyExpansion(location));
}
bool CStyleCast::isLastTokenOfImmediateMacroBodyExpansion(
SourceLocation loc, SourceLocation * macroEnd) const
{
assert(compiler.getSourceManager().isMacroBodyExpansion(loc));
auto const spell = compiler.getSourceManager().getSpellingLoc(loc);
auto name = Lexer::getImmediateMacroName(
loc, compiler.getSourceManager(), compiler.getLangOpts());
while (compat::starts_with(name, "\\\n")) {
name = name.drop_front(2);
while (!name.empty()
&& (name.front() == ' ' || name.front() == '\t' || name.front() == '\n'
|| name.front() == '\v' || name.front() == '\f'))
{
name = name.drop_front(1);
}
}
auto const MI
= (compiler.getPreprocessor().getMacroDefinitionAtLoc(
&compiler.getASTContext().Idents.get(name), spell)
.getMacroInfo());
assert(MI != nullptr);
if (spell == MI->getDefinitionEndLoc()) {
if (macroEnd != nullptr) {
*macroEnd = compat::getImmediateExpansionRange(compiler.getSourceManager(), loc).second;
}
return true;
}
return false;
}
bool CStyleCast::rewriteArithmeticCast(CStyleCastExpr const * expr, char const ** replacement) {
assert(replacement != nullptr);
auto const sub = expr->getSubExprAsWritten();
auto const functional = isLiteralLike(sub)
&& canBeUsedForFunctionalCast(expr->getTypeInfoAsWritten());
*replacement = functional ? "functional cast" : "static_cast";
if (rewriter == nullptr) {
return false;
}
// Doing modifications for a chain of C-style casts as in
//
// (foo)(bar)(baz)x
//
// leads to unpredictable results, so only rewrite them one at a time, starting with the
// outermost:
if (auto const e = dyn_cast<CStyleCastExpr>(sub)) {
rewrittenSubExprs_.insert(e);
}
if (rewrittenSubExprs_.find(expr) != rewrittenSubExprs_.end()) {
return false;
}
// Two or four ranges to replace:
// First is the CStyleCast's LParen, plus following whitespace, replaced with either "" or
// "static_cast<". (TODO: insert space before "static_cast<" when converting "else(int)...".)
// Second is the CStyleCast's RParen, plus preceding and following whitespace, replaced with
// either "" or ">".
// If the sub expr is not a ParenExpr, third is the sub expr's begin, inserting "(", and fourth
// is the sub expr's end, inserting ")".
// (The reason the second and third are not combined is in case there's a comment between them.)
auto firstBegin = expr->getLParenLoc();
auto secondBegin = expr->getRParenLoc();
while (compiler.getSourceManager().isMacroArgExpansion(firstBegin)
&& compiler.getSourceManager().isMacroArgExpansion(secondBegin)
&& (compat::getImmediateExpansionRange(compiler.getSourceManager(), firstBegin)
== compat::getImmediateExpansionRange(compiler.getSourceManager(), secondBegin)))
{
firstBegin = compiler.getSourceManager().getImmediateSpellingLoc(firstBegin);
secondBegin = compiler.getSourceManager().getImmediateSpellingLoc(secondBegin);
}
if (compiler.getSourceManager().isMacroBodyExpansion(firstBegin)
&& compiler.getSourceManager().isMacroBodyExpansion(secondBegin)
&& (compiler.getSourceManager().getImmediateMacroCallerLoc(firstBegin)
== compiler.getSourceManager().getImmediateMacroCallerLoc(secondBegin)))
{
firstBegin = compiler.getSourceManager().getSpellingLoc(firstBegin);
secondBegin = compiler.getSourceManager().getSpellingLoc(secondBegin);
}
auto third = sub->getBeginLoc();
auto fourth = sub->getEndLoc();
bool macro = false;
// Ensure that
//
// #define FOO(x) (int)x
// FOO(y)
//
// is changed to
//
// #define FOO(x) static_cast<int>(x)
// FOO(y)
//
// instead of
//
// #define FOO(x) static_cast<int>x
// FOO((y))
while (compiler.getSourceManager().isMacroArgExpansion(third)
&& compiler.getSourceManager().isMacroArgExpansion(fourth)
&& (compat::getImmediateExpansionRange(compiler.getSourceManager(), third)
== compat::getImmediateExpansionRange(compiler.getSourceManager(), fourth))
&& compiler.getSourceManager().isAtStartOfImmediateMacroExpansion(third))
//TODO: check fourth is at end of immediate macro expansion, but
// SourceManager::isAtEndOfImmediateMacroExpansion requires a location pointing at the
// character end of the last token
{
auto const range = compat::getImmediateExpansionRange(compiler.getSourceManager(), third);
third = range.first;
fourth = range.second;
macro = true;
assert(third.isValid());
}
while (compiler.getSourceManager().isMacroArgExpansion(third)
&& compiler.getSourceManager().isMacroArgExpansion(fourth)
&& (compat::getImmediateExpansionRange(compiler.getSourceManager(), third)
== compat::getImmediateExpansionRange(compiler.getSourceManager(), fourth)))
{
third = compiler.getSourceManager().getImmediateSpellingLoc(third);
fourth = compiler.getSourceManager().getImmediateSpellingLoc(fourth);
}
if (isa<ParenExpr>(sub)) {
// Ensure that with
//
// #define FOO (x)
//
// a cast like
//
// (int) FOO
//
// is changed to
//
// static_cast<int>(FOO)
//
// instead of
//
// static_cast<int>FOO
for (;; macro = true) {
if (!(compiler.getSourceManager().isMacroBodyExpansion(third)
&& compiler.getSourceManager().isMacroBodyExpansion(fourth)
&& (compiler.getSourceManager().getImmediateMacroCallerLoc(third)
== compiler.getSourceManager().getImmediateMacroCallerLoc(fourth))
&& compiler.getSourceManager().isAtStartOfImmediateMacroExpansion(third)
&& isLastTokenOfImmediateMacroBodyExpansion(fourth)))
{
if (!macro) {
third = fourth = SourceLocation();
}
break;
}
auto const range = compat::getImmediateExpansionRange(
compiler.getSourceManager(), third);
third = range.first;
fourth = range.second;
assert(third.isValid());
}
if (third.isValid() && compiler.getSourceManager().isMacroBodyExpansion(third)
&& compiler.getSourceManager().isMacroBodyExpansion(fourth)
&& (compiler.getSourceManager().getImmediateMacroCallerLoc(third)
== compiler.getSourceManager().getImmediateMacroCallerLoc(fourth)))
{
third = compiler.getSourceManager().getSpellingLoc(third);
fourth = compiler.getSourceManager().getSpellingLoc(fourth);
assert(third.isValid());
}
} else {
// Ensure that a cast like
//
// (int)LONG_MAX
//
// (where LONG_MAX expands to __LONG_MAX__, which in turn is a built-in expanding to a value
// like 9223372036854775807L) is changed to
//
// int(LONG_MAX)
//
// instead of trying to add the parentheses to the built-in __LONG_MAX__ definition:
for (;;) {
if (!(compiler.getSourceManager().isMacroBodyExpansion(third)
&& compiler.getSourceManager().isMacroBodyExpansion(fourth)
&& (compiler.getSourceManager().getImmediateMacroCallerLoc(third)
== compiler.getSourceManager().getImmediateMacroCallerLoc(fourth))
&& compiler.getSourceManager().isAtStartOfImmediateMacroExpansion(third)))
// TODO: check that fourth is at end of immediate macro expansion (but
// SourceManager::isAtEndOfImmediateMacroExpansion wants a location pointing at the
// character end)
{
break;
}
auto const range = compat::getImmediateExpansionRange(
compiler.getSourceManager(), third);
third = range.first;
fourth = range.second;
}
// ...and additionally asymmetrically unwind macros only at the start or end, for code like
//
// (long)ubidi_getVisualIndex(...)
//
// (in editeng/source/editeng/impedit2.cxx) where ubidi_getVisualIndex is an object-like
// macro, or
//
// #define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
//
// (in hwpfilter/source/lexer.cxx):
if (!fourth.isMacroID()) {
while (compiler.getSourceManager().isMacroBodyExpansion(third)
&& compiler.getSourceManager().isAtStartOfImmediateMacroExpansion(third, &third))
{}
} else if (compiler.getSourceManager().isMacroBodyExpansion(fourth)) {
while (compiler.getSourceManager().isMacroArgExpansion(third)
&& compiler.getSourceManager().isAtStartOfImmediateMacroExpansion(third, &third)) {}
}
if (!third.isMacroID()) {
while (compiler.getSourceManager().isMacroBodyExpansion(fourth)
&& isLastTokenOfImmediateMacroBodyExpansion(fourth, &fourth))
{}
} else if (compiler.getSourceManager().isMacroBodyExpansion(third)) {
while (compiler.getSourceManager().isMacroArgExpansion(fourth, &fourth)) {}
}
if (compiler.getSourceManager().isMacroBodyExpansion(third)
&& compiler.getSourceManager().isMacroBodyExpansion(fourth)
&& (compiler.getSourceManager().getImmediateMacroCallerLoc(third)
== compiler.getSourceManager().getImmediateMacroCallerLoc(fourth)))
{
third = compiler.getSourceManager().getSpellingLoc(third);
fourth = compiler.getSourceManager().getSpellingLoc(fourth);
}
assert(third.isValid());
}
if (firstBegin.isMacroID() || secondBegin.isMacroID() || (third.isValid() && third.isMacroID())
|| (fourth.isValid() && fourth.isMacroID()))
{
if (isDebugMode()) {
report(
DiagnosticsEngine::Fatal,
"TODO: cannot rewrite C-style cast in macro, needs investigation",
expr->getExprLoc())
<< expr->getSourceRange();
}
return false;
}
unsigned firstLen = Lexer::MeasureTokenLength(
firstBegin, compiler.getSourceManager(), compiler.getLangOpts());
for (auto l = firstBegin.getLocWithOffset(std::max<unsigned>(firstLen, 1));;
l = l.getLocWithOffset(1))
{
unsigned n = Lexer::MeasureTokenLength(
l, compiler.getSourceManager(), compiler.getLangOpts());
if (n != 0) {
break;
}
++firstLen;
}
unsigned secondLen = Lexer::MeasureTokenLength(
secondBegin, compiler.getSourceManager(), compiler.getLangOpts());
for (auto l = secondBegin.getLocWithOffset(std::max<unsigned>(secondLen, 1));;
l = l.getLocWithOffset(1))
{
unsigned n = Lexer::MeasureTokenLength(
l, compiler.getSourceManager(), compiler.getLangOpts());
if (n != 0) {
break;
}
++secondLen;
}
for (;;) {
auto l = secondBegin.getLocWithOffset(-1);
auto const c = compiler.getSourceManager().getCharacterData(l)[0];
if (c == '\n') {
if (compiler.getSourceManager().getCharacterData(l.getLocWithOffset(-1))[0] == '\\') {
break;
}
} else if (!(c == ' ' || c == '\t' || c == '\v' || c == '\f')) {
break;
}
secondBegin = l;
++secondLen;
}
if (rewritten_.insert(firstBegin).second) {
if (!replaceText(firstBegin, firstLen, functional ? "" : "static_cast<")) {
if (isDebugMode()) {
report(
DiagnosticsEngine::Fatal, "TODO: cannot rewrite #1, needs investigation",
firstBegin);
report(
DiagnosticsEngine::Note, "when rewriting this C-style cast", expr->getExprLoc())
<< expr->getSourceRange();
}
return false;
}
if (!replaceText(secondBegin, secondLen, functional ? "" : ">")) {
//TODO: roll back
if (isDebugMode()) {
report(
DiagnosticsEngine::Fatal, "TODO: cannot rewrite #2, needs investigation",
secondBegin);
report(
DiagnosticsEngine::Note, "when rewriting this C-style cast", expr->getExprLoc())
<< expr->getSourceRange();
}
return false;
}
}
if (third.isValid()) {
if (rewritten_.insert(third).second) {
if (!insertTextBefore(third, "(")) {
//TODO: roll back
if (isDebugMode()) {
report(
DiagnosticsEngine::Fatal, "TODO: cannot rewrite #3, needs investigation",
third);
report(
DiagnosticsEngine::Note, "when rewriting this C-style cast",
expr->getExprLoc())
<< expr->getSourceRange();
}
return false;
}
if (!insertTextAfterToken(fourth, ")")) {
//TODO: roll back
if (isDebugMode()) {
report(
DiagnosticsEngine::Fatal, "TODO: cannot rewrite #4, needs investigation",
third);
report(
DiagnosticsEngine::Note, "when rewriting this C-style cast",
expr->getExprLoc())
<< expr->getSourceRange();
}
return false;
}
}
}
return true;
}
void CStyleCast::reportCast(ExplicitCastExpr const * expr, char const * performsHint) {
std::string incompFrom;
std::string incompTo;
if( expr->getCastKind() == CK_BitCast ) {
if (resolvePointers(expr->getSubExprAsWritten()->getType())
->isIncompleteType())
{
incompFrom = "incomplete ";
}
if (resolvePointers(expr->getType())->isIncompleteType()) {
incompTo = "incomplete ";
}
}
if (performsHint == nullptr) {
performsHint = recommendedFix(expr->getCastKind());
}
std::string performs;
if (performsHint != nullptr) {
performs = std::string(" (performs: ") + performsHint + ")";
}
report(
DiagnosticsEngine::Warning, "%select{C|Function}0-style cast from %1%2 to %3%4%5 (%6)",
expr->getSourceRange().getBegin())
<< isa<CXXFunctionalCastExpr>(expr)
<< incompFrom << expr->getSubExprAsWritten()->getType()
<< incompTo << expr->getTypeAsWritten() << performs
<< expr->getCastKindName()
<< expr->getSourceRange();
}
loplugin::Plugin::Registration< CStyleCast > X("cstylecast", true);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
