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/* -*- 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 "clang/Lex/Lexer.h"
#include "plugin.hxx"
#include <iostream>
#include <fstream>
/**
* Rewrites all Paint method on subclasses of vcl::Window to include RenderContext& as parameter.
*
* run as: make COMPILER_PLUGIN_TOOL=paintmethodconversion UPDATE_FILES=all FORCE_COMPILE=all
*/
namespace
{
bool baseCheckNotWindowSubclass(const CXXRecordDecl* aBaseDefinition, void* /*pInput*/)
{
if (aBaseDefinition && aBaseDefinition->getQualifiedNameAsString() == "vcl::Window")
{
return false;
}
return true;
}
bool isDerivedFromWindow(const CXXRecordDecl* decl) {
if (!decl)
return false;
// skip vcl::Window
if (decl->getQualifiedNameAsString() == "vcl::Window")
return false;
if (!decl->forallBases(baseCheckNotWindowSubclass, nullptr, true))
return true;
return false;
}
class PaintMethodConversion: public loplugin::FilteringRewritePlugin<PaintMethodConversion>
{
public:
explicit PaintMethodConversion(InstantiationData const& data):
FilteringRewritePlugin(data)
{}
virtual void run() override
{
TraverseDecl(compiler.getASTContext().getTranslationUnitDecl());
}
bool TraverseCXXMethodDecl(const CXXMethodDecl* methodDeclaration)
{
if (!rewriter)
return true;
if (methodDeclaration->getNameAsString() != "Paint")
return true;
if (!isDerivedFromWindow(methodDeclaration->getParent()))
{
return true;
}
unsigned int nNoOfParameters = methodDeclaration->getNumParams();
if (nNoOfParameters == 1) // we expect only one parameter Paint(Rect&)
{
const ParmVarDecl* parameterDecl = methodDeclaration->getParamDecl(0);
if (methodDeclaration->hasBody())
{
rewriter->InsertText(parameterDecl->getLocStart(), "vcl::RenderContext& /*rRenderContext*/, ", true, true);
}
else
{
rewriter->InsertText(parameterDecl->getLocStart(), "vcl::RenderContext& rRenderContext, ", true, true);
}
}
return true;
}
};
loplugin::Plugin::Registration<PaintMethodConversion> X("paintmethodconversion", true);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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