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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
//===- FormatAdapters.h - Formatters for common LLVM types -----*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_FORMATADAPTERS_H
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#define LLVM_SUPPORT_FORMATADAPTERS_H
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/FormatCommon.h"
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#include "llvm/Support/FormatVariadicDetails.h"
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#include "llvm/Support/raw_ostream.h"
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namespace llvm {
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template <typename T> class FormatAdapter : public detail::format_adapter {
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protected:
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explicit FormatAdapter(T &&Item) : Item(std::forward<T>(Item)) {}
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T Item;
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};
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namespace detail {
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template <typename T> class AlignAdapter final : public FormatAdapter<T> {
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AlignStyle Where;
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size_t Amount;
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char Fill;
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public:
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AlignAdapter(T &&Item, AlignStyle Where, size_t Amount, char Fill)
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: FormatAdapter<T>(std::forward<T>(Item)), Where(Where), Amount(Amount),
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Fill(Fill) {}
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void format(llvm::raw_ostream &Stream, StringRef Style) {
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auto Adapter = detail::build_format_adapter(std::forward<T>(this->Item));
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FmtAlign(Adapter, Where, Amount, Fill).format(Stream, Style);
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}
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};
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template <typename T> class PadAdapter final : public FormatAdapter<T> {
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size_t Left;
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size_t Right;
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public:
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PadAdapter(T &&Item, size_t Left, size_t Right)
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: FormatAdapter<T>(std::forward<T>(Item)), Left(Left), Right(Right) {}
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void format(llvm::raw_ostream &Stream, StringRef Style) {
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auto Adapter = detail::build_format_adapter(std::forward<T>(this->Item));
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Stream.indent(Left);
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Adapter.format(Stream, Style);
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Stream.indent(Right);
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}
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};
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template <typename T> class RepeatAdapter final : public FormatAdapter<T> {
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size_t Count;
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public:
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RepeatAdapter(T &&Item, size_t Count)
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: FormatAdapter<T>(std::forward<T>(Item)), Count(Count) {}
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void format(llvm::raw_ostream &Stream, StringRef Style) {
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auto Adapter = detail::build_format_adapter(std::forward<T>(this->Item));
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for (size_t I = 0; I < Count; ++I) {
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Adapter.format(Stream, Style);
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}
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}
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};
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class ErrorAdapter : public FormatAdapter<Error> {
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public:
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ErrorAdapter(Error &&Item) : FormatAdapter(std::move(Item)) {}
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ErrorAdapter(ErrorAdapter &&) = default;
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~ErrorAdapter() { consumeError(std::move(Item)); }
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void format(llvm::raw_ostream &Stream, StringRef Style) { Stream << Item; }
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};
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}
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template <typename T>
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detail::AlignAdapter<T> fmt_align(T &&Item, AlignStyle Where, size_t Amount,
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char Fill = ' ') {
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return detail::AlignAdapter<T>(std::forward<T>(Item), Where, Amount, Fill);
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}
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template <typename T>
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detail::PadAdapter<T> fmt_pad(T &&Item, size_t Left, size_t Right) {
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return detail::PadAdapter<T>(std::forward<T>(Item), Left, Right);
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}
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template <typename T>
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detail::RepeatAdapter<T> fmt_repeat(T &&Item, size_t Count) {
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return detail::RepeatAdapter<T>(std::forward<T>(Item), Count);
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}
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// llvm::Error values must be consumed before being destroyed.
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// Wrapping an error in fmt_consume explicitly indicates that the formatv_object
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// should take ownership and consume it.
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inline detail::ErrorAdapter fmt_consume(Error &&Item) {
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return detail::ErrorAdapter(std::move(Item));
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}
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}
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#endif
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