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-rw-r--r--contrib/llvm/lib/Support/FormatVariadic.cpp155
1 files changed, 0 insertions, 155 deletions
diff --git a/contrib/llvm/lib/Support/FormatVariadic.cpp b/contrib/llvm/lib/Support/FormatVariadic.cpp
deleted file mode 100644
index f9e89f69b528..000000000000
--- a/contrib/llvm/lib/Support/FormatVariadic.cpp
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@@ -1,155 +0,0 @@
-//===- FormatVariadic.cpp - Format string parsing and analysis ----*-C++-*-===//
-//
-// 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/Support/FormatVariadic.h"
-
-using namespace llvm;
-
-static Optional<AlignStyle> translateLocChar(char C) {
- switch (C) {
- case '-':
- return AlignStyle::Left;
- case '=':
- return AlignStyle::Center;
- case '+':
- return AlignStyle::Right;
- default:
- return None;
- }
- LLVM_BUILTIN_UNREACHABLE;
-}
-
-bool formatv_object_base::consumeFieldLayout(StringRef &Spec, AlignStyle &Where,
- size_t &Align, char &Pad) {
- Where = AlignStyle::Right;
- Align = 0;
- Pad = ' ';
- if (Spec.empty())
- return true;
-
- if (Spec.size() > 1) {
- // A maximum of 2 characters at the beginning can be used for something
- // other
- // than the width.
- // If Spec[1] is a loc char, then Spec[0] is a pad char and Spec[2:...]
- // contains the width.
- // Otherwise, if Spec[0] is a loc char, then Spec[1:...] contains the width.
- // Otherwise, Spec[0:...] contains the width.
- if (auto Loc = translateLocChar(Spec[1])) {
- Pad = Spec[0];
- Where = *Loc;
- Spec = Spec.drop_front(2);
- } else if (auto Loc = translateLocChar(Spec[0])) {
- Where = *Loc;
- Spec = Spec.drop_front(1);
- }
- }
-
- bool Failed = Spec.consumeInteger(0, Align);
- return !Failed;
-}
-
-Optional<ReplacementItem>
-formatv_object_base::parseReplacementItem(StringRef Spec) {
- StringRef RepString = Spec.trim("{}");
-
- // If the replacement sequence does not start with a non-negative integer,
- // this is an error.
- char Pad = ' ';
- std::size_t Align = 0;
- AlignStyle Where = AlignStyle::Right;
- StringRef Options;
- size_t Index = 0;
- RepString = RepString.trim();
- if (RepString.consumeInteger(0, Index)) {
- assert(false && "Invalid replacement sequence index!");
- return ReplacementItem{};
- }
- RepString = RepString.trim();
- if (!RepString.empty() && RepString.front() == ',') {
- RepString = RepString.drop_front();
- if (!consumeFieldLayout(RepString, Where, Align, Pad))
- assert(false && "Invalid replacement field layout specification!");
- }
- RepString = RepString.trim();
- if (!RepString.empty() && RepString.front() == ':') {
- Options = RepString.drop_front().trim();
- RepString = StringRef();
- }
- RepString = RepString.trim();
- if (!RepString.empty()) {
- assert(false && "Unexpected characters found in replacement string!");
- }
-
- return ReplacementItem{Spec, Index, Align, Where, Pad, Options};
-}
-
-std::pair<ReplacementItem, StringRef>
-formatv_object_base::splitLiteralAndReplacement(StringRef Fmt) {
- std::size_t From = 0;
- while (From < Fmt.size() && From != StringRef::npos) {
- std::size_t BO = Fmt.find_first_of('{', From);
- // Everything up until the first brace is a literal.
- if (BO != 0)
- return std::make_pair(ReplacementItem{Fmt.substr(0, BO)}, Fmt.substr(BO));
-
- StringRef Braces =
- Fmt.drop_front(BO).take_while([](char C) { return C == '{'; });
- // If there is more than one brace, then some of them are escaped. Treat
- // these as replacements.
- if (Braces.size() > 1) {
- size_t NumEscapedBraces = Braces.size() / 2;
- StringRef Middle = Fmt.substr(BO, NumEscapedBraces);
- StringRef Right = Fmt.drop_front(BO + NumEscapedBraces * 2);
- return std::make_pair(ReplacementItem{Middle}, Right);
- }
- // An unterminated open brace is undefined. We treat the rest of the string
- // as a literal replacement, but we assert to indicate that this is
- // undefined and that we consider it an error.
- std::size_t BC = Fmt.find_first_of('}', BO);
- if (BC == StringRef::npos) {
- assert(
- false &&
- "Unterminated brace sequence. Escape with {{ for a literal brace.");
- return std::make_pair(ReplacementItem{Fmt}, StringRef());
- }
-
- // Even if there is a closing brace, if there is another open brace before
- // this closing brace, treat this portion as literal, and try again with the
- // next one.
- std::size_t BO2 = Fmt.find_first_of('{', BO + 1);
- if (BO2 < BC)
- return std::make_pair(ReplacementItem{Fmt.substr(0, BO2)},
- Fmt.substr(BO2));
-
- StringRef Spec = Fmt.slice(BO + 1, BC);
- StringRef Right = Fmt.substr(BC + 1);
-
- auto RI = parseReplacementItem(Spec);
- if (RI.hasValue())
- return std::make_pair(*RI, Right);
-
- // If there was an error parsing the replacement item, treat it as an
- // invalid replacement spec, and just continue.
- From = BC + 1;
- }
- return std::make_pair(ReplacementItem{Fmt}, StringRef());
-}
-
-std::vector<ReplacementItem>
-formatv_object_base::parseFormatString(StringRef Fmt) {
- std::vector<ReplacementItem> Replacements;
- ReplacementItem I;
- while (!Fmt.empty()) {
- std::tie(I, Fmt) = splitLiteralAndReplacement(Fmt);
- if (I.Type != ReplacementType::Empty)
- Replacements.push_back(I);
- }
- return Replacements;
-}
-
-void detail::format_adapter::anchor() { }