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-rw-r--r--compilerplugins/clang/doubleconvert.cxx84
-rw-r--r--compilerplugins/clang/test/doubleconvert.cxx22
-rw-r--r--sc/source/core/tool/detfunc.cxx6
-rw-r--r--sc/source/ui/dbgui/csvgrid.cxx10
-rw-r--r--solenv/CompilerTest_compilerplugins_clang.mk1
5 files changed, 115 insertions, 8 deletions
diff --git a/compilerplugins/clang/doubleconvert.cxx b/compilerplugins/clang/doubleconvert.cxx
new file mode 100644
index 000000000000..a0478e9e5f1f
--- /dev/null
+++ b/compilerplugins/clang/doubleconvert.cxx
@@ -0,0 +1,84 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * 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 "check.hxx"
+#include "compat.hxx"
+#include "plugin.hxx"
+
+/**
+ * Look for places where we are converting from type A through a conversion operator and back to type A,
+ * which is redundant. At the moment only look for Color, to aid my ColorData->Color conversion
+ */
+namespace
+{
+class DoubleConvert final : public RecursiveASTVisitor<DoubleConvert>, public loplugin::Plugin
+{
+public:
+ explicit DoubleConvert(loplugin::InstantiationData const& data)
+ : Plugin(data)
+ {
+ }
+ void run() override { TraverseDecl(compiler.getASTContext().getTranslationUnitDecl()); }
+
+ bool VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr const*);
+};
+
+/**
+ The AST looks like:
+
+ CXXOperatorCallExpr 0x8e5b840 'class Color' lvalue
+|-ImplicitCastExpr 0x8e5b828 'class Color &(*)(class Color &&) noexcept' <FunctionToPointerDecay>
+| `-DeclRefExpr 0x8e5b800 'class Color &(class Color &&) noexcept' lvalue CXXMethod 0x8e59a08 'operator=' 'class Color &(class Color &&) noexcept'
+|-DeclRefExpr 0x8e5b678 'class Color' lvalue Var 0x8e5b5d0 'col2' 'class Color'
+`-MaterializeTemporaryExpr 0x8e5b7e8 'class Color' xvalue
+ `-CXXConstructExpr 0x8e5b7b0 'class Color' 'void (ColorData)'
+ `-ImplicitCastExpr 0x8e5b798 'ColorData':'unsigned int' <IntegralCast>
+ `-CXXFunctionalCastExpr 0x8e5b770 'sal_Int32':'int' functional cast to sal_Int32 <NoOp>
+ `-ImplicitCastExpr 0x8e5b758 'sal_Int32':'int' <UserDefinedConversion>
+ `-CXXMemberCallExpr 0x8e5b730 'sal_Int32':'int'
+ `-MemberExpr 0x8e5b6f8 '<bound member function type>' .operator int 0x8e51048
+ `-ImplicitCastExpr 0x8e5b6e0 'const class Color' lvalue <NoOp>
+ `-DeclRefExpr 0x8e5b6b0 'class Color' lvalue Var 0x8e5b518 'col1' 'class Color'
+*/
+bool DoubleConvert::VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr const* materializetemp)
+{
+ if (ignoreLocation(materializetemp))
+ return true;
+ auto cxxConstruct
+ = dyn_cast<CXXConstructExpr>(materializetemp->GetTemporaryExpr()->IgnoreParenCasts());
+ if (!cxxConstruct)
+ return true;
+ if (cxxConstruct->getNumArgs() == 0)
+ return true;
+ auto cxxMemberCallExpr
+ = dyn_cast<CXXMemberCallExpr>(cxxConstruct->getArg(0)->IgnoreParenCasts());
+ if (!cxxMemberCallExpr)
+ return true;
+ if (!isa<CXXConversionDecl>(cxxMemberCallExpr->getMethodDecl()))
+ return true;
+ if (materializetemp->getType().getCanonicalType().getTypePtr()
+ != cxxMemberCallExpr->getImplicitObjectArgument()
+ ->getType()
+ .getCanonicalType()
+ .getTypePtr())
+ return true;
+ if (!loplugin::TypeCheck(materializetemp->getType().getCanonicalType())
+ .Class("Color")
+ .GlobalNamespace())
+ return true;
+
+ report(DiagnosticsEngine::Warning, "redundant double conversion", materializetemp->getExprLoc())
+ << materializetemp->getSourceRange();
+ return true;
+}
+
+static loplugin::Plugin::Registration<DoubleConvert> reg("doubleconvert");
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/compilerplugins/clang/test/doubleconvert.cxx b/compilerplugins/clang/test/doubleconvert.cxx
new file mode 100644
index 000000000000..d0fd8b787bdb
--- /dev/null
+++ b/compilerplugins/clang/test/doubleconvert.cxx
@@ -0,0 +1,22 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * 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 "sal/config.h"
+#include "tools/color.hxx"
+
+int main()
+{
+ Color col1;
+ Color col2;
+ col2 = sal_Int32(
+ col1); // expected-error@-1 {{redundant double conversion [loplugin:doubleconvert]}}
+ (void)col2;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/sc/source/core/tool/detfunc.cxx b/sc/source/core/tool/detfunc.cxx
index 0022dea97add..7eebfedd2bcf 100644
--- a/sc/source/core/tool/detfunc.cxx
+++ b/sc/source/core/tool/detfunc.cxx
@@ -1657,9 +1657,9 @@ void ScDetectiveFunc::InitializeColors()
// may be called several times to update colors from configuration
const svtools::ColorConfig& rColorCfg = SC_MOD()->GetColorConfig();
- nArrowColor = sal_Int32(rColorCfg.GetColorValue(svtools::CALCDETECTIVE).nColor);
- nErrorColor = sal_Int32(rColorCfg.GetColorValue(svtools::CALCDETECTIVEERROR).nColor);
- nCommentColor = sal_Int32(rColorCfg.GetColorValue(svtools::CALCNOTESBACKGROUND).nColor);
+ nArrowColor = rColorCfg.GetColorValue(svtools::CALCDETECTIVE).nColor;
+ nErrorColor = rColorCfg.GetColorValue(svtools::CALCDETECTIVEERROR).nColor;
+ nCommentColor = rColorCfg.GetColorValue(svtools::CALCNOTESBACKGROUND).nColor;
bColorsInitialized = true;
}
diff --git a/sc/source/ui/dbgui/csvgrid.cxx b/sc/source/ui/dbgui/csvgrid.cxx
index ed47160ea08e..4b7ffb4aabe6 100644
--- a/sc/source/ui/dbgui/csvgrid.cxx
+++ b/sc/source/ui/dbgui/csvgrid.cxx
@@ -213,11 +213,11 @@ void ScCsvGrid::InitColors()
OSL_PRECOND(mpColorConfig, "the object hasn't been initialized properly");
if ( !mpColorConfig )
return;
- maBackColor = static_cast< sal_uInt32 >( mpColorConfig->GetColorValue( ::svtools::DOCCOLOR ).nColor );
- maGridColor = static_cast< sal_uInt32 >( mpColorConfig->GetColorValue( ::svtools::CALCGRID ).nColor );
- maGridPBColor = static_cast< sal_uInt32 >( mpColorConfig->GetColorValue( ::svtools::CALCPAGEBREAK ).nColor );
- maAppBackColor = static_cast< sal_uInt32 >( mpColorConfig->GetColorValue( ::svtools::APPBACKGROUND ).nColor );
- maTextColor = static_cast< sal_uInt32 >( mpColorConfig->GetColorValue( ::svtools::FONTCOLOR ).nColor );
+ maBackColor = mpColorConfig->GetColorValue( ::svtools::DOCCOLOR ).nColor;
+ maGridColor = mpColorConfig->GetColorValue( ::svtools::CALCGRID ).nColor;
+ maGridPBColor = mpColorConfig->GetColorValue( ::svtools::CALCPAGEBREAK ).nColor;
+ maAppBackColor = mpColorConfig->GetColorValue( ::svtools::APPBACKGROUND ).nColor;
+ maTextColor = mpColorConfig->GetColorValue( ::svtools::FONTCOLOR ).nColor;
const StyleSettings& rSett = GetSettings().GetStyleSettings();
maHeaderBackColor = rSett.GetFaceColor();
diff --git a/solenv/CompilerTest_compilerplugins_clang.mk b/solenv/CompilerTest_compilerplugins_clang.mk
index bc4fbdc3ae0c..d417702d19fe 100644
--- a/solenv/CompilerTest_compilerplugins_clang.mk
+++ b/solenv/CompilerTest_compilerplugins_clang.mk
@@ -20,6 +20,7 @@ $(eval $(call gb_CompilerTest_add_exception_objects,compilerplugins_clang, \
compilerplugins/clang/test/cstylecast \
compilerplugins/clang/test/datamembershadow \
compilerplugins/clang/test/dodgyswitch \
+ compilerplugins/clang/test/doubleconvert \
compilerplugins/clang/test/emptyif \
compilerplugins/clang/test/externvar \
compilerplugins/clang/test/expressionalwayszero \
generated by cgit (git 2.34.1) at 2025-01-24 23:26:46 +0000