1 files changed, 0 insertions, 250 deletions
diff --git a/contrib/llvm/lib/Support/ConvertUTFWrapper.cpp b/contrib/llvm/lib/Support/ConvertUTFWrapper.cpp
deleted file mode 100644
index eb4ead6b46b4..000000000000
--- a/contrib/llvm/lib/Support/ConvertUTFWrapper.cpp
+++ /dev/null
@@ -1,250 +0,0 @@
-//===-- ConvertUTFWrapper.cpp - Wrap ConvertUTF.h with clang data types -----===
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/Support/ConvertUTF.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/SwapByteOrder.h"
-#include <string>
-#include <vector>
-
-namespace llvm {
-
-bool ConvertUTF8toWide(unsigned WideCharWidth, llvm::StringRef Source,
-                       char *&ResultPtr, const UTF8 *&ErrorPtr) {
-  assert(WideCharWidth == 1 || WideCharWidth == 2 || WideCharWidth == 4);
-  ConversionResult result = conversionOK;
-  // Copy the character span over.
-  if (WideCharWidth == 1) {
-    const UTF8 *Pos = reinterpret_cast<const UTF8*>(Source.begin());
-    if (!isLegalUTF8String(&Pos, reinterpret_cast<const UTF8*>(Source.end()))) {
-      result = sourceIllegal;
-      ErrorPtr = Pos;
-    } else {
-      memcpy(ResultPtr, Source.data(), Source.size());
-      ResultPtr += Source.size();
-    }
-  } else if (WideCharWidth == 2) {
-    const UTF8 *sourceStart = (const UTF8*)Source.data();
-    // FIXME: Make the type of the result buffer correct instead of
-    // using reinterpret_cast.
-    UTF16 *targetStart = reinterpret_cast<UTF16*>(ResultPtr);
-    ConversionFlags flags = strictConversion;
-    result = ConvertUTF8toUTF16(
-        &sourceStart, sourceStart + Source.size(),
-        &targetStart, targetStart + Source.size(), flags);
-    if (result == conversionOK)
-      ResultPtr = reinterpret_cast<char*>(targetStart);
-    else
-      ErrorPtr = sourceStart;
-  } else if (WideCharWidth == 4) {
-    const UTF8 *sourceStart = (const UTF8*)Source.data();
-    // FIXME: Make the type of the result buffer correct instead of
-    // using reinterpret_cast.
-    UTF32 *targetStart = reinterpret_cast<UTF32*>(ResultPtr);
-    ConversionFlags flags = strictConversion;
-    result = ConvertUTF8toUTF32(
-        &sourceStart, sourceStart + Source.size(),
-        &targetStart, targetStart + Source.size(), flags);
-    if (result == conversionOK)
-      ResultPtr = reinterpret_cast<char*>(targetStart);
-    else
-      ErrorPtr = sourceStart;
-  }
-  assert((result != targetExhausted)
-         && "ConvertUTF8toUTFXX exhausted target buffer");
-  return result == conversionOK;
-}
-
-bool ConvertCodePointToUTF8(unsigned Source, char *&ResultPtr) {
-  const UTF32 *SourceStart = &Source;
-  const UTF32 *SourceEnd = SourceStart + 1;
-  UTF8 *TargetStart = reinterpret_cast<UTF8 *>(ResultPtr);
-  UTF8 *TargetEnd = TargetStart + 4;
-  ConversionResult CR = ConvertUTF32toUTF8(&SourceStart, SourceEnd,
-                                           &TargetStart, TargetEnd,
-                                           strictConversion);
-  if (CR != conversionOK)
-    return false;
-
-  ResultPtr = reinterpret_cast<char*>(TargetStart);
-  return true;
-}
-
-bool hasUTF16ByteOrderMark(ArrayRef<char> S) {
-  return (S.size() >= 2 &&
-          ((S[0] == '\xff' && S[1] == '\xfe') ||
-           (S[0] == '\xfe' && S[1] == '\xff')));
-}
-
-bool convertUTF16ToUTF8String(ArrayRef<char> SrcBytes, std::string &Out) {
-  assert(Out.empty());
-
-  // Error out on an uneven byte count.
-  if (SrcBytes.size() % 2)
-    return false;
-
-  // Avoid OOB by returning early on empty input.
-  if (SrcBytes.empty())
-    return true;
-
-  const UTF16 *Src = reinterpret_cast<const UTF16 *>(SrcBytes.begin());
-  const UTF16 *SrcEnd = reinterpret_cast<const UTF16 *>(SrcBytes.end());
-
-  // Byteswap if necessary.
-  std::vector<UTF16> ByteSwapped;
-  if (Src[0] == UNI_UTF16_BYTE_ORDER_MARK_SWAPPED) {
-    ByteSwapped.insert(ByteSwapped.end(), Src, SrcEnd);
-    for (unsigned I = 0, E = ByteSwapped.size(); I != E; ++I)
-      ByteSwapped[I] = llvm::sys::SwapByteOrder_16(ByteSwapped[I]);
-    Src = &ByteSwapped[0];
-    SrcEnd = &ByteSwapped[ByteSwapped.size() - 1] + 1;
-  }
-
-  // Skip the BOM for conversion.
-  if (Src[0] == UNI_UTF16_BYTE_ORDER_MARK_NATIVE)
-    Src++;
-
-  // Just allocate enough space up front.  We'll shrink it later.  Allocate
-  // enough that we can fit a null terminator without reallocating.
-  Out.resize(SrcBytes.size() * UNI_MAX_UTF8_BYTES_PER_CODE_POINT + 1);
-  UTF8 *Dst = reinterpret_cast<UTF8 *>(&Out[0]);
-  UTF8 *DstEnd = Dst + Out.size();
-
-  ConversionResult CR =
-      ConvertUTF16toUTF8(&Src, SrcEnd, &Dst, DstEnd, strictConversion);
-  assert(CR != targetExhausted);
-
-  if (CR != conversionOK) {
-    Out.clear();
-    return false;
-  }
-
-  Out.resize(reinterpret_cast<char *>(Dst) - &Out[0]);
-  Out.push_back(0);
-  Out.pop_back();
-  return true;
-}
-
-bool convertUTF16ToUTF8String(ArrayRef<UTF16> Src, std::string &Out)
-{
-  return convertUTF16ToUTF8String(
-      llvm::ArrayRef<char>(reinterpret_cast<const char *>(Src.data()),
-      Src.size() * sizeof(UTF16)), Out);
-}
-
-bool convertUTF8ToUTF16String(StringRef SrcUTF8,
-                              SmallVectorImpl<UTF16> &DstUTF16) {
-  assert(DstUTF16.empty());
-
-  // Avoid OOB by returning early on empty input.
-  if (SrcUTF8.empty()) {
-    DstUTF16.push_back(0);
-    DstUTF16.pop_back();
-    return true;
-  }
-
-  const UTF8 *Src = reinterpret_cast<const UTF8 *>(SrcUTF8.begin());
-  const UTF8 *SrcEnd = reinterpret_cast<const UTF8 *>(SrcUTF8.end());
-
-  // Allocate the same number of UTF-16 code units as UTF-8 code units. Encoding
-  // as UTF-16 should always require the same amount or less code units than the
-  // UTF-8 encoding.  Allocate one extra byte for the null terminator though,
-  // so that someone calling DstUTF16.data() gets a null terminated string.
-  // We resize down later so we don't have to worry that this over allocates.
-  DstUTF16.resize(SrcUTF8.size()+1);
-  UTF16 *Dst = &DstUTF16[0];
-  UTF16 *DstEnd = Dst + DstUTF16.size();
-
-  ConversionResult CR =
-      ConvertUTF8toUTF16(&Src, SrcEnd, &Dst, DstEnd, strictConversion);
-  assert(CR != targetExhausted);
-
-  if (CR != conversionOK) {
-    DstUTF16.clear();
-    return false;
-  }
-
-  DstUTF16.resize(Dst - &DstUTF16[0]);
-  DstUTF16.push_back(0);
-  DstUTF16.pop_back();
-  return true;
-}
-
-static_assert(sizeof(wchar_t) == 1 || sizeof(wchar_t) == 2 ||
-                  sizeof(wchar_t) == 4,
-              "Expected wchar_t to be 1, 2, or 4 bytes");
-
-template <typename TResult>
-static inline bool ConvertUTF8toWideInternal(llvm::StringRef Source,
-                                             TResult &Result) {
-  // Even in the case of UTF-16, the number of bytes in a UTF-8 string is
-  // at least as large as the number of elements in the resulting wide
-  // string, because surrogate pairs take at least 4 bytes in UTF-8.
-  Result.resize(Source.size() + 1);
-  char *ResultPtr = reinterpret_cast<char *>(&Result[0]);
-  const UTF8 *ErrorPtr;
-  if (!ConvertUTF8toWide(sizeof(wchar_t), Source, ResultPtr, ErrorPtr)) {
-    Result.clear();
-    return false;
-  }
-  Result.resize(reinterpret_cast<wchar_t *>(ResultPtr) - &Result[0]);
-  return true;
-}
-
-bool ConvertUTF8toWide(llvm::StringRef Source, std::wstring &Result) {
-  return ConvertUTF8toWideInternal(Source, Result);
-}
-
-bool ConvertUTF8toWide(const char *Source, std::wstring &Result) {
-  if (!Source) {
-    Result.clear();
-    return true;
-  }
-  return ConvertUTF8toWide(llvm::StringRef(Source), Result);
-}
-
-bool convertWideToUTF8(const std::wstring &Source, std::string &Result) {
-  if (sizeof(wchar_t) == 1) {
-    const UTF8 *Start = reinterpret_cast<const UTF8 *>(Source.data());
-    const UTF8 *End =
-        reinterpret_cast<const UTF8 *>(Source.data() + Source.size());
-    if (!isLegalUTF8String(&Start, End))
-      return false;
-    Result.resize(Source.size());
-    memcpy(&Result[0], Source.data(), Source.size());
-    return true;
-  } else if (sizeof(wchar_t) == 2) {
-    return convertUTF16ToUTF8String(
-        llvm::ArrayRef<UTF16>(reinterpret_cast<const UTF16 *>(Source.data()),
-                              Source.size()),
-        Result);
-  } else if (sizeof(wchar_t) == 4) {
-    const UTF32 *Start = reinterpret_cast<const UTF32 *>(Source.data());
-    const UTF32 *End =
-        reinterpret_cast<const UTF32 *>(Source.data() + Source.size());
-    Result.resize(UNI_MAX_UTF8_BYTES_PER_CODE_POINT * Source.size());
-    UTF8 *ResultPtr = reinterpret_cast<UTF8 *>(&Result[0]);
-    UTF8 *ResultEnd = reinterpret_cast<UTF8 *>(&Result[0] + Result.size());
-    if (ConvertUTF32toUTF8(&Start, End, &ResultPtr, ResultEnd,
-                           strictConversion) == conversionOK) {
-      Result.resize(reinterpret_cast<char *>(ResultPtr) - &Result[0]);
-      return true;
-    } else {
-      Result.clear();
-      return false;
-    }
-  } else {
-    llvm_unreachable(
-        "Control should never reach this point; see static_assert further up");
-  }
-}
-
-} // end namespace llvm
-