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