mirror of
https://github.com/LibreOffice/core.git
synced 2025-08-11 23:24:16 +00:00
542fb709a4
when passing data to a method that is of type Foo&& Change-Id: I0e6bcfb42d6ebcbc7cb19e510ab2010a2cc2bb7e Reviewed-on: https://gerrit.libreoffice.org/c/core/+/121843 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
363 lines
11 KiB
C++
363 lines
11 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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#pragma once
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#include <cstddef>
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#include <string>
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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/Basic/Specifiers.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/StringExtras.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Casting.h"
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#include "llvm/Support/Compiler.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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// Copies code from LLVM's include/llvm/Support/Casting.h:
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template<typename... X, typename Y> LLVM_NODISCARD inline bool isa_and_nonnull(Y const & Val) {
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#if CLANG_VERSION >= 90000
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return llvm::isa_and_nonnull<X...>(Val);
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#else
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if (!Val) {
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return false;
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}
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return llvm::isa<X...>(Val);
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#endif
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}
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inline std::string toString(llvm::APSInt const & i, unsigned radix) {
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#if CLANG_VERSION >= 130000
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return llvm::toString(i, radix);
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#else
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return i.toString(radix);
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#endif
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}
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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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/// Utility method
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inline clang::Expr const * IgnoreParenImplicit(clang::Expr const * expr) {
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return compat::IgnoreImplicit(compat::IgnoreImplicit(expr)->IgnoreParens());
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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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#if CLANG_VERSION >= 130000
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constexpr clang::ExprValueKind VK_PRValue = clang::VK_PRValue;
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#else
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constexpr clang::ExprValueKind VK_PRValue = clang::VK_RValue;
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#endif
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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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#if CLANG_VERSION < 80000
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inline clang::Expr const * getSubExprAsWritten(clang::CastExpr const * expr)
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{ return expr->getSubExprAsWritten(); }
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#else
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// Work around CastExpr::getSubExprAsWritten firing
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//
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// include/llvm/Support/Casting.h:269: typename llvm::cast_retty<X, Y*>::ret_type llvm::cast(Y*)
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// [with X = clang::CXXConstructExpr; Y = clang::Expr;
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// typename llvm::cast_retty<X, Y*>::ret_type = clang::CXXConstructExpr*]: Assertion
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// `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed.
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//
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// for CastExprs involving ConstantExpr (introduced with
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// <https://github.com/llvm/llvm-project/commit/7c44da279e399d302a685c500e7f802f8adf9762> "Create
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// ConstantExpr class" towards LLVM 8) like
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//
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// CXXFunctionalCastExpr 0xc01c4e8 'class rtl::OStringLiteral<9>':'class rtl::OStringLiteral<9>' functional cast to OStringLiteral <ConstructorConversion>
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// `-ConstantExpr 0xc01c380 'class rtl::OStringLiteral<9>':'class rtl::OStringLiteral<9>'
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// |-value: Struct
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// | |-fields: Int 1073741824, Int 8
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// | `-field: Array size=9
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// | |-elements: Int 46, Int 111, Int 115, Int 108
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// | |-elements: Int 45, Int 116, Int 109, Int 112
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// | `-element: Int 0
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// `-CXXConstructExpr 0xc01c350 'class rtl::OStringLiteral<9>':'class rtl::OStringLiteral<9>' 'void (const char (&)[9])'
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// `-StringLiteral 0xc019ad8 'const char [9]' lvalue ".osl-tmp"
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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->IgnoreImplicit())->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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#endif
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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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inline bool isPtrMemOp(clang::BinaryOperatorKind op) {
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#if CLANG_VERSION >= 80000
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return clang::BinaryOperator::isPtrMemOp(op);
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#else
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return op == clang::BO_PtrMemD || op == clang::BO_PtrMemI;
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#endif
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}
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#if CLANG_VERSION >= 70000
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constexpr llvm::sys::fs::OpenFlags OF_None = llvm::sys::fs::OF_None;
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#else
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constexpr llvm::sys::fs::OpenFlags OF_None = llvm::sys::fs::F_None;
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#endif
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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