1 files changed, 0 insertions, 165 deletions
diff --git a/js/src/new-regexp/gen-regexp-special-case.cc b/js/src/new-regexp/gen-regexp-special-case.cc
deleted file mode 100644
index 5a82c5d277..0000000000
--- a/js/src/new-regexp/gen-regexp-special-case.cc
+++ /dev/null
@@ -1,165 +0,0 @@
-// Copyright 2020 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <fstream>
-#include <iomanip>
-#include <iostream>
-#include <sstream>
-
-#include "new-regexp/special-case.h"
-
-namespace v8 {
-namespace internal {
-
-static const uc32 kSurrogateStart = 0xd800;
-static const uc32 kSurrogateEnd = 0xdfff;
-static const uc32 kNonBmpStart = 0x10000;
-
-// The following code generates "src/regexp/special-case.cc".
-void PrintSet(std::ofstream& out, const char* name,
-              const icu::UnicodeSet& set) {
-  out << "icu::UnicodeSet Build" << name << "() {\n"
-      << "  icu::UnicodeSet set;\n";
-  for (int32_t i = 0; i < set.getRangeCount(); i++) {
-    if (set.getRangeStart(i) == set.getRangeEnd(i)) {
-      out << "  set.add(0x" << set.getRangeStart(i) << ");\n";
-    } else {
-      out << "  set.add(0x" << set.getRangeStart(i) << ", 0x"
-          << set.getRangeEnd(i) << ");\n";
-    }
-  }
-  out << "  set.freeze();\n"
-      << "  return set;\n"
-      << "}\n\n";
-
-  out << "struct " << name << "Data {\n"
-      << "  " << name << "Data() : set(Build" << name << "()) {}\n"
-      << "  const icu::UnicodeSet set;\n"
-      << "};\n\n";
-
-  out << "//static\n"
-      << "const icu::UnicodeSet& RegExpCaseFolding::" << name << "() {\n"
-      << "  static base::LazyInstance<" << name << "Data>::type set =\n"
-      << "      LAZY_INSTANCE_INITIALIZER;\n"
-      << "  return set.Pointer()->set;\n"
-      << "}\n\n";
-}
-
-void PrintSpecial(std::ofstream& out) {
-  icu::UnicodeSet current;
-  icu::UnicodeSet special_add;
-  icu::UnicodeSet ignore;
-  UErrorCode status = U_ZERO_ERROR;
-  icu::UnicodeSet upper("[\\p{Lu}]", status);
-  CHECK(U_SUCCESS(status));
-
-  // Iterate through all chars in BMP except surrogates.
-  for (UChar32 i = 0; i < kNonBmpStart; i++) {
-    if (i >= kSurrogateStart && i <= kSurrogateEnd) {
-      continue;  // Ignore surrogate range
-    }
-    current.set(i, i);
-    current.closeOver(USET_CASE_INSENSITIVE);
-
-    // Check to see if all characters in the case-folding equivalence
-    // class as defined by UnicodeSet::closeOver all map to the same
-    // canonical value.
-    UChar32 canonical = RegExpCaseFolding::Canonicalize(i);
-    bool class_has_matching_canonical_char = false;
-    bool class_has_non_matching_canonical_char = false;
-    for (int32_t j = 0; j < current.getRangeCount(); j++) {
-      for (UChar32 c = current.getRangeStart(j); c <= current.getRangeEnd(j);
-           c++) {
-        if (c == i) {
-          continue;
-        }
-        UChar32 other_canonical = RegExpCaseFolding::Canonicalize(c);
-        if (canonical == other_canonical) {
-          class_has_matching_canonical_char = true;
-        } else {
-          class_has_non_matching_canonical_char = true;
-        }
-      }
-    }
-    // If any other character in i's equivalence class has a
-    // different canonical value, then i needs special handling.  If
-    // no other character shares a canonical value with i, we can
-    // ignore i when adding alternatives for case-independent
-    // comparison.  If at least one other character shares a
-    // canonical value, then i needs special handling.
-    if (class_has_non_matching_canonical_char) {
-      if (class_has_matching_canonical_char) {
-        special_add.add(i);
-      } else {
-        ignore.add(i);
-      }
-    }
-  }
-
-  // Verify that no Unicode equivalence class contains two non-trivial
-  // JS equivalence classes. Every character in SpecialAddSet has the
-  // same canonical value as every other non-IgnoreSet character in
-  // its Unicode equivalence class. Therefore, if we call closeOver on
-  // a set containing no IgnoreSet characters, the only characters
-  // that must be removed from the result are in IgnoreSet. This fact
-  // is used in CharacterRange::AddCaseEquivalents.
-  for (int32_t i = 0; i < special_add.getRangeCount(); i++) {
-    for (UChar32 c = special_add.getRangeStart(i);
-         c <= special_add.getRangeEnd(i); c++) {
-      UChar32 canonical = RegExpCaseFolding::Canonicalize(c);
-      current.set(c, c);
-      current.closeOver(USET_CASE_INSENSITIVE);
-      current.removeAll(ignore);
-      for (int32_t j = 0; j < current.getRangeCount(); j++) {
-        for (UChar32 c2 = current.getRangeStart(j);
-             c2 <= current.getRangeEnd(j); c2++) {
-          CHECK_EQ(canonical, RegExpCaseFolding::Canonicalize(c2));
-        }
-      }
-    }
-  }
-
-  PrintSet(out, "IgnoreSet", ignore);
-  PrintSet(out, "SpecialAddSet", special_add);
-}
-
-void WriteHeader(const char* header_filename) {
-  std::ofstream out(header_filename);
-  out << std::hex << std::setfill('0') << std::setw(4);
-  out << "// Copyright 2020 the V8 project authors. All rights reserved.\n"
-      << "// Use of this source code is governed by a BSD-style license that\n"
-      << "// can be found in the LICENSE file.\n\n"
-      << "// Automatically generated by regexp/gen-regexp-special-case.cc\n\n"
-      << "// The following functions are used to build UnicodeSets\n"
-      << "// for special cases where the case-folding algorithm used by\n"
-      << "// UnicodeSet::closeOver(USET_CASE_INSENSITIVE) does not match\n"
-      << "// the algorithm defined in ECMAScript 2020 21.2.2.8.2 (Runtime\n"
-      << "// Semantics: Canonicalize) step 3.\n\n"
-      << "#ifdef V8_INTL_SUPPORT\n"
-      << "#include \"src/base/lazy-instance.h\"\n\n"
-      << "#include \"src/regexp/special-case.h\"\n\n"
-      << "#include \"unicode/uniset.h\"\n"
-      << "namespace v8 {\n"
-      << "namespace internal {\n\n";
-
-  PrintSpecial(out);
-
-  out << "\n"
-      << "}  // namespace internal\n"
-      << "}  // namespace v8\n"
-      << "#endif  // V8_INTL_SUPPORT\n";
-}
-
-}  // namespace internal
-}  // namespace v8
-
-int main(int argc, const char** argv) {
-  if (argc != 2) {
-    std::cerr << "Usage: " << argv[0] << " <output filename>\n";
-    std::exit(1);
-  }
-  v8::internal::WriteHeader(argv[1]);
-
-  return 0;
-}