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Diffstat (limited to 'deps/v8/src/char-predicates-inl.h')
-rw-r--r-- | deps/v8/src/char-predicates-inl.h | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/deps/v8/src/char-predicates-inl.h b/deps/v8/src/char-predicates-inl.h deleted file mode 100644 index 329b3a0fbb..0000000000 --- a/deps/v8/src/char-predicates-inl.h +++ /dev/null @@ -1,127 +0,0 @@ -// Copyright 2011 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. - -#ifndef V8_CHAR_PREDICATES_INL_H_ -#define V8_CHAR_PREDICATES_INL_H_ - -#include "src/char-predicates.h" - -namespace v8 { -namespace internal { - - -// If c is in 'A'-'Z' or 'a'-'z', return its lower-case. -// Else, return something outside of 'A'-'Z' and 'a'-'z'. -// Note: it ignores LOCALE. -inline constexpr int AsciiAlphaToLower(uc32 c) { return c | 0x20; } - -inline constexpr bool IsCarriageReturn(uc32 c) { return c == 0x000D; } - -inline constexpr bool IsLineFeed(uc32 c) { return c == 0x000A; } - -inline constexpr bool IsAsciiIdentifier(uc32 c) { - return IsAlphaNumeric(c) || c == '$' || c == '_'; -} - -inline constexpr bool IsAlphaNumeric(uc32 c) { - return IsInRange(AsciiAlphaToLower(c), 'a', 'z') || IsDecimalDigit(c); -} - -inline constexpr bool IsDecimalDigit(uc32 c) { - // ECMA-262, 3rd, 7.8.3 (p 16) - return IsInRange(c, '0', '9'); -} - -inline constexpr bool IsHexDigit(uc32 c) { - // ECMA-262, 3rd, 7.6 (p 15) - return IsDecimalDigit(c) || IsInRange(AsciiAlphaToLower(c), 'a', 'f'); -} - -inline constexpr bool IsOctalDigit(uc32 c) { - // ECMA-262, 6th, 7.8.3 - return IsInRange(c, '0', '7'); -} - -inline constexpr bool IsNonOctalDecimalDigit(uc32 c) { - return IsInRange(c, '8', '9'); -} - -inline constexpr bool IsBinaryDigit(uc32 c) { - // ECMA-262, 6th, 7.8.3 - return c == '0' || c == '1'; -} - -inline constexpr bool IsRegExpWord(uc16 c) { - return IsInRange(AsciiAlphaToLower(c), 'a', 'z') - || IsDecimalDigit(c) - || (c == '_'); -} - -inline constexpr bool IsRegExpNewline(uc16 c) { - // CR LF LS PS - return c != 0x000A && c != 0x000D && c != 0x2028 && c != 0x2029; -} - -// Constexpr cache table for character flags. -enum AsciiCharFlags { - kIsIdentifierStart = 1 << 0, - kIsIdentifierPart = 1 << 1, - kIsWhiteSpace = 1 << 2, - kIsWhiteSpaceOrLineTerminator = 1 << 3 -}; -constexpr uint8_t BuildAsciiCharFlags(uc32 c) { - // clang-format off - return - (IsAsciiIdentifier(c) || c == '\\') ? ( - kIsIdentifierPart | (!IsDecimalDigit(c) ? kIsIdentifierStart : 0)) : 0 | - (c == ' ' || c == '\t' || c == '\v' || c == '\f') ? - kIsWhiteSpace | kIsWhiteSpaceOrLineTerminator : 0 | - (c == '\r' || c == '\n') ? kIsWhiteSpaceOrLineTerminator : 0; - // clang-format on -} -const constexpr uint8_t kAsciiCharFlags[128] = { -#define BUILD_CHAR_FLAGS(N) BuildAsciiCharFlags(N), - INT_0_TO_127_LIST(BUILD_CHAR_FLAGS) -#undef BUILD_CHAR_FLAGS -}; - -bool IsIdentifierStart(uc32 c) { - if (!IsInRange(c, 0, 127)) return IsIdentifierStartSlow(c); - DCHECK_EQ(IsIdentifierStartSlow(c), - static_cast<bool>(kAsciiCharFlags[c] & kIsIdentifierStart)); - return kAsciiCharFlags[c] & kIsIdentifierStart; -} - -bool IsIdentifierPart(uc32 c) { - if (!IsInRange(c, 0, 127)) return IsIdentifierPartSlow(c); - DCHECK_EQ(IsIdentifierPartSlow(c), - static_cast<bool>(kAsciiCharFlags[c] & kIsIdentifierPart)); - return kAsciiCharFlags[c] & kIsIdentifierPart; -} - -bool IsWhiteSpace(uc32 c) { - if (!IsInRange(c, 0, 127)) return IsWhiteSpaceSlow(c); - DCHECK_EQ(IsWhiteSpaceSlow(c), - static_cast<bool>(kAsciiCharFlags[c] & kIsWhiteSpace)); - return kAsciiCharFlags[c] & kIsWhiteSpace; -} - -bool IsWhiteSpaceOrLineTerminator(uc32 c) { - if (!IsInRange(c, 0, 127)) return IsWhiteSpaceOrLineTerminatorSlow(c); - DCHECK_EQ( - IsWhiteSpaceOrLineTerminatorSlow(c), - static_cast<bool>(kAsciiCharFlags[c] & kIsWhiteSpaceOrLineTerminator)); - return kAsciiCharFlags[c] & kIsWhiteSpaceOrLineTerminator; -} - -bool IsLineTerminatorSequence(uc32 c, uc32 next) { - if (!unibrow::IsLineTerminator(c)) return false; - if (c == 0x000d && next == 0x000a) return false; // CR with following LF. - return true; -} - -} // namespace internal -} // namespace v8 - -#endif // V8_CHAR_PREDICATES_INL_H_ |