Coverage Report

Created: 2019-07-24 05:18

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/include/llvm/Support/FormatCommon.h
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//===- FormatCommon.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_FORMATCOMMON_H
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#define LLVM_SUPPORT_FORMATCOMMON_H
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#include "llvm/ADT/SmallString.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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enum class AlignStyle { Left, Center, Right };
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struct FmtAlign {
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  detail::format_adapter &Adapter;
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  AlignStyle Where;
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  size_t Amount;
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  char Fill;
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  FmtAlign(detail::format_adapter &Adapter, AlignStyle Where, size_t Amount,
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           char Fill = ' ')
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      : Adapter(Adapter), Where(Where), Amount(Amount), Fill(Fill) {}
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  void format(raw_ostream &S, StringRef Options) {
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    // If we don't need to align, we can format straight into the underlying
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    // stream.  Otherwise we have to go through an intermediate stream first
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    // in order to calculate how long the output is so we can align it.
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    // TODO: Make the format method return the number of bytes written, that
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    // way we can also skip the intermediate stream for left-aligned output.
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    if (Amount == 0) {
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      Adapter.format(S, Options);
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      return;
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    }
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    SmallString<64> Item;
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    raw_svector_ostream Stream(Item);
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    Adapter.format(Stream, Options);
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    if (Amount <= Item.size()) {
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      S << Item;
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      return;
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    }
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    size_t PadAmount = Amount - Item.size();
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    switch (Where) {
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    case AlignStyle::Left:
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      S << Item;
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      fill(S, PadAmount);
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      break;
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    case AlignStyle::Center: {
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      size_t X = PadAmount / 2;
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      fill(S, X);
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      S << Item;
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      fill(S, PadAmount - X);
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      break;
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    }
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    default:
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      fill(S, PadAmount);
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      S << Item;
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      break;
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    }
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  }
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private:
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  void fill(llvm::raw_ostream &S, uint32_t Count) {
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    for (uint32_t I = 0; I < Count; 
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)
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      S << Fill;
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  }
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};
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}
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#endif