cda88ec7a4
with expressions like !(a && b) Change-Id: Id2acec2a8d0eaaa8e5e37dbd2cae7281be36572e Reviewed-on: https://gerrit.libreoffice.org/c/core/+/100040 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
317 lines
10 KiB
C++
317 lines
10 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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#ifndef INCLUDED_COMPILERPLUGINS_CLANG_COMPAT_HXX
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#define INCLUDED_COMPILERPLUGINS_CLANG_COMPAT_HXX
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#include <cstddef>
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#include <utility>
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#include "clang/AST/Decl.h"
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#include "clang/AST/DeclCXX.h"
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#include "clang/AST/Expr.h"
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#include "clang/AST/ExprCXX.h"
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#include "clang/Basic/SourceManager.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Lex/Lexer.h"
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#include "llvm/ADT/StringRef.h"
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#include "config_clang.h"
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// Compatibility wrapper to abstract over (trivial) changes in the Clang API:
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namespace compat {
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inline clang::SourceLocation getBeginLoc(clang::Decl const * decl) {
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#if CLANG_VERSION >= 80000
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return decl->getBeginLoc();
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#else
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return decl->getLocStart();
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#endif
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}
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inline clang::SourceLocation getEndLoc(clang::Decl const * decl) {
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#if CLANG_VERSION >= 80000
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return decl->getEndLoc();
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#else
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return decl->getLocEnd();
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#endif
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}
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inline clang::SourceLocation getBeginLoc(clang::DeclarationNameInfo const & info) {
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#if CLANG_VERSION >= 80000
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return info.getBeginLoc();
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#else
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return info.getLocStart();
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#endif
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}
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inline clang::SourceLocation getEndLoc(clang::DeclarationNameInfo const & info) {
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#if CLANG_VERSION >= 80000
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return info.getEndLoc();
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#else
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return info.getLocEnd();
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#endif
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}
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inline clang::SourceLocation getBeginLoc(clang::Stmt const * stmt) {
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#if CLANG_VERSION >= 80000
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return stmt->getBeginLoc();
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#else
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return stmt->getLocStart();
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#endif
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}
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inline clang::SourceLocation getEndLoc(clang::Stmt const * stmt) {
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#if CLANG_VERSION >= 80000
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return stmt->getEndLoc();
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#else
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return stmt->getLocEnd();
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#endif
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}
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inline clang::SourceLocation getBeginLoc(clang::CXXBaseSpecifier const * spec) {
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#if CLANG_VERSION >= 80000
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return spec->getBeginLoc();
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#else
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return spec->getLocStart();
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#endif
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}
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inline clang::SourceLocation getEndLoc(clang::CXXBaseSpecifier const * spec) {
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#if CLANG_VERSION >= 80000
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return spec->getEndLoc();
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#else
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return spec->getLocEnd();
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#endif
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}
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inline std::pair<clang::SourceLocation, clang::SourceLocation> getImmediateExpansionRange(
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clang::SourceManager const & SM, clang::SourceLocation Loc)
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{
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#if CLANG_VERSION >= 70000
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auto const csr = SM.getImmediateExpansionRange(Loc);
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if (csr.isCharRange()) { /*TODO*/ }
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return {csr.getBegin(), csr.getEnd()};
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#else
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return SM.getImmediateExpansionRange(Loc);
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#endif
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}
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inline bool isPointWithin(
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clang::SourceManager const & SM, clang::SourceLocation Location, clang::SourceLocation Start,
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clang::SourceLocation End)
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{
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#if CLANG_VERSION >= 60000
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return SM.isPointWithin(Location, Start, End);
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#else
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return
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Location == Start || Location == End
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|| (SM.isBeforeInTranslationUnit(Start, Location)
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&& SM.isBeforeInTranslationUnit(Location, End));
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#endif
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}
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inline clang::Expr const * IgnoreImplicit(clang::Expr const * expr) {
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#if CLANG_VERSION >= 80000
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return expr->IgnoreImplicit();
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#else
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using namespace clang;
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// Copy from Clang's lib/AST/Stmt.cpp, including <https://reviews.llvm.org/D50666> "Fix
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// Stmt::ignoreImplicit":
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Stmt const *s = expr;
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Stmt const *lasts = nullptr;
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while (s != lasts) {
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lasts = s;
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if (auto *ewc = dyn_cast<ExprWithCleanups>(s))
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s = ewc->getSubExpr();
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if (auto *mte = dyn_cast<MaterializeTemporaryExpr>(s))
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s = mte->GetTemporaryExpr();
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if (auto *bte = dyn_cast<CXXBindTemporaryExpr>(s))
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s = bte->getSubExpr();
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if (auto *ice = dyn_cast<ImplicitCastExpr>(s))
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s = ice->getSubExpr();
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}
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return static_cast<Expr const *>(s);
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#endif
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}
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inline bool CPlusPlus17(clang::LangOptions const & opts) {
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#if CLANG_VERSION >= 60000
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return opts.CPlusPlus17;
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#else
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return opts.CPlusPlus1z;
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#endif
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}
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inline bool EvaluateAsInt(clang::Expr const * expr, llvm::APSInt& intRes, const clang::ASTContext& ctx) {
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#if CLANG_VERSION >= 80000
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clang::Expr::EvalResult res;
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bool b = expr->EvaluateAsInt(res, ctx);
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if (b && res.Val.isInt())
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intRes = res.Val.getInt();
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return b;
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#else
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return expr->EvaluateAsInt(intRes, ctx);
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#endif
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}
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inline llvm::Optional<llvm::APSInt> getIntegerConstantExpr(
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clang::Expr const * expr, clang::ASTContext const & context)
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{
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#if CLANG_VERSION >= 120000
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return expr->getIntegerConstantExpr(context);
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#else
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llvm::APSInt res;
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return expr->isIntegerConstantExpr(res, context) ? res : llvm::Optional<llvm::APSInt>();
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#endif
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}
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inline clang::Expr * getSubExpr(clang::MaterializeTemporaryExpr const * expr) {
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#if CLANG_VERSION >= 100000
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return expr->getSubExpr();
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#else
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return expr->GetTemporaryExpr();
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#endif
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}
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// Work around <http://reviews.llvm.org/D22128>:
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//
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// SfxErrorHandler::GetClassString (svtools/source/misc/ehdl.cxx):
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//
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// ErrorResource_Impl aEr(aId, (sal_uInt16)lClassId);
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// if(aEr)
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// {
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// rStr = static_cast<ResString>(aEr).GetString();
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// }
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//
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// expr->dump():
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// CXXStaticCastExpr 0x2b74e8e657b8 'class ResString' static_cast<class ResString> <ConstructorConversion>
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// `-CXXBindTemporaryExpr 0x2b74e8e65798 'class ResString' (CXXTemporary 0x2b74e8e65790)
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// `-CXXConstructExpr 0x2b74e8e65758 'class ResString' 'void (class ResString &&) noexcept(false)' elidable
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// `-MaterializeTemporaryExpr 0x2b74e8e65740 'class ResString' xvalue
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// `-CXXBindTemporaryExpr 0x2b74e8e65720 'class ResString' (CXXTemporary 0x2b74e8e65718)
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// `-ImplicitCastExpr 0x2b74e8e65700 'class ResString' <UserDefinedConversion>
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// `-CXXMemberCallExpr 0x2b74e8e656d8 'class ResString'
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// `-MemberExpr 0x2b74e8e656a0 '<bound member function type>' .operator ResString 0x2b74e8dc1f00
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// `-DeclRefExpr 0x2b74e8e65648 'struct ErrorResource_Impl' lvalue Var 0x2b74e8e653b0 'aEr' 'struct ErrorResource_Impl'
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// expr->getSubExprAsWritten()->dump():
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// MaterializeTemporaryExpr 0x2b74e8e65740 'class ResString' xvalue
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// `-CXXBindTemporaryExpr 0x2b74e8e65720 'class ResString' (CXXTemporary 0x2b74e8e65718)
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// `-ImplicitCastExpr 0x2b74e8e65700 'class ResString' <UserDefinedConversion>
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// `-CXXMemberCallExpr 0x2b74e8e656d8 'class ResString'
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// `-MemberExpr 0x2b74e8e656a0 '<bound member function type>' .operator ResString 0x2b74e8dc1f00
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// `-DeclRefExpr 0x2b74e8e65648 'struct ErrorResource_Impl' lvalue Var 0x2b74e8e653b0 'aEr' 'struct ErrorResource_Impl'
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//
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// Copies code from Clang's lib/AST/Expr.cpp:
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namespace detail {
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inline clang::Expr *skipImplicitTemporary(clang::Expr *expr) {
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// Skip through reference binding to temporary.
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if (clang::MaterializeTemporaryExpr *Materialize
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= clang::dyn_cast<clang::MaterializeTemporaryExpr>(expr))
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expr = compat::getSubExpr(Materialize);
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// Skip any temporary bindings; they're implicit.
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if (clang::CXXBindTemporaryExpr *Binder = clang::dyn_cast<clang::CXXBindTemporaryExpr>(expr))
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expr = Binder->getSubExpr();
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return expr;
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}
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}
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inline clang::Expr *getSubExprAsWritten(clang::CastExpr *This) {
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clang::Expr *SubExpr = nullptr;
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clang::CastExpr *E = This;
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do {
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SubExpr = detail::skipImplicitTemporary(E->getSubExpr());
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// Conversions by constructor and conversion functions have a
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// subexpression describing the call; strip it off.
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if (E->getCastKind() == clang::CK_ConstructorConversion)
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SubExpr =
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detail::skipImplicitTemporary(clang::cast<clang::CXXConstructExpr>(SubExpr)->getArg(0));
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else if (E->getCastKind() == clang::CK_UserDefinedConversion) {
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assert((clang::isa<clang::CXXMemberCallExpr>(SubExpr) ||
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clang::isa<clang::BlockExpr>(SubExpr)) &&
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"Unexpected SubExpr for CK_UserDefinedConversion.");
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if (clang::isa<clang::CXXMemberCallExpr>(SubExpr))
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SubExpr = clang::cast<clang::CXXMemberCallExpr>(SubExpr)->getImplicitObjectArgument();
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}
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// If the subexpression we're left with is an implicit cast, look
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// through that, too.
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} while ((E = clang::dyn_cast<clang::ImplicitCastExpr>(SubExpr)));
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return SubExpr;
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}
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inline const clang::Expr *getSubExprAsWritten(const clang::CastExpr *This) {
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return getSubExprAsWritten(const_cast<clang::CastExpr *>(This));
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}
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inline clang::QualType getObjectType(clang::CXXMemberCallExpr const * expr) {
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#if CLANG_VERSION >= 100000
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return expr->getObjectType();
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#else
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// <https://github.com/llvm/llvm-project/commit/88559637641e993895337e1047a0bd787fecc647>
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// "[OpenCL] Improve destructor support in C++ for OpenCL":
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clang::QualType Ty = expr->getImplicitObjectArgument()->getType();
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if (Ty->isPointerType())
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Ty = Ty->getPointeeType();
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return Ty;
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#endif
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}
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inline bool isExplicitSpecified(clang::CXXConstructorDecl const * decl) {
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#if CLANG_VERSION >= 90000
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return decl->getExplicitSpecifier().isExplicit();
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#else
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return decl->isExplicitSpecified();
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#endif
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}
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inline bool isExplicitSpecified(clang::CXXConversionDecl const * decl) {
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#if CLANG_VERSION >= 90000
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return decl->getExplicitSpecifier().isExplicit();
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#else
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return decl->isExplicitSpecified();
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#endif
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}
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inline clang::QualType getDeclaredReturnType(clang::FunctionDecl const * decl) {
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#if CLANG_VERSION >= 80000
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return decl->getDeclaredReturnType();
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#else
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// <https://github.com/llvm/llvm-project/commit/4576a77b809649f5b8d0ff8c7a4be57eeee0ecf9>
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// "PR33222: Require the declared return type not the actual return type to":
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auto *TSI = decl->getTypeSourceInfo();
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clang::QualType T = TSI ? TSI->getType() : decl->getType();
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return T->castAs<clang::FunctionType>()->getReturnType();
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#endif
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}
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// The isComparisonOp method on CXXOperatorCallExpr is not available yet for the clang we require
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inline bool isComparisonOp(clang::CXXOperatorCallExpr const * callExpr)
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{
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using namespace clang;
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auto op = callExpr->getOperator();
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return op == OO_Less || op == OO_Greater || op == OO_LessEqual || op == OO_GreaterEqual
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|| op == OO_EqualEqual || op == OO_ExclaimEqual;
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}
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}
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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