Coverage Report

Created: 2018-09-19 20:53

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/tools/clang/include/clang/Basic/CharInfo.h
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//===--- clang/Basic/CharInfo.h - Classifying ASCII Characters --*- C++ -*-===//
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//
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//                     The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_BASIC_CHARINFO_H
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#define LLVM_CLANG_BASIC_CHARINFO_H
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#include "clang/Basic/LLVM.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Compiler.h"
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#include "llvm/Support/DataTypes.h"
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namespace clang {
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namespace charinfo {
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  extern const uint16_t InfoTable[256];
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  enum {
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    CHAR_HORZ_WS  = 0x0001,  // '\t', '\f', '\v'.  Note, no '\0'
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    CHAR_VERT_WS  = 0x0002,  // '\r', '\n'
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    CHAR_SPACE    = 0x0004,  // ' '
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    CHAR_DIGIT    = 0x0008,  // 0-9
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    CHAR_XLETTER  = 0x0010,  // a-f,A-F
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    CHAR_UPPER    = 0x0020,  // A-Z
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    CHAR_LOWER    = 0x0040,  // a-z
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    CHAR_UNDER    = 0x0080,  // _
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    CHAR_PERIOD   = 0x0100,  // .
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    CHAR_RAWDEL   = 0x0200,  // {}[]#<>%:;?*+-/^&|~!=,"'
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    CHAR_PUNCT    = 0x0400   // `$@()
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  };
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  enum {
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    CHAR_XUPPER = CHAR_XLETTER | CHAR_UPPER,
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    CHAR_XLOWER = CHAR_XLETTER | CHAR_LOWER
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  };
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} // end namespace charinfo
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/// Returns true if this is an ASCII character.
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583M
LLVM_READNONE inline bool isASCII(char c) {
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583M
  return static_cast<unsigned char>(c) <= 127;
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583M
}
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/// Returns true if this is a valid first character of a C identifier,
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/// which is [a-zA-Z_].
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LLVM_READONLY inline bool isIdentifierHead(unsigned char c,
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1.38M
                                           bool AllowDollar = false) {
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1.38M
  using namespace charinfo;
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1.38M
  if (InfoTable[c] & (CHAR_UPPER|CHAR_LOWER|CHAR_UNDER))
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2.75k
    return true;
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1.37M
  return AllowDollar && 
c == '$'0
;
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1.37M
}
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/// Returns true if this is a body character of a C identifier,
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/// which is [a-zA-Z0-9_].
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LLVM_READONLY inline bool isIdentifierBody(unsigned char c,
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10.6G
                                           bool AllowDollar = false) {
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10.6G
  using namespace charinfo;
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10.6G
  if (InfoTable[c] & (CHAR_UPPER|CHAR_LOWER|CHAR_DIGIT|CHAR_UNDER))
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10.1G
    return true;
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554M
  return AllowDollar && 
c == '$'0
;
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554M
}
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/// Returns true if this character is horizontal ASCII whitespace:
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/// ' ', '\\t', '\\f', '\\v'.
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///
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/// Note that this returns false for '\\0'.
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1.33G
LLVM_READONLY inline bool isHorizontalWhitespace(unsigned char c) {
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1.33G
  using namespace charinfo;
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1.33G
  return (InfoTable[c] & (CHAR_HORZ_WS|CHAR_SPACE)) != 0;
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}
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/// Returns true if this character is vertical ASCII whitespace: '\\n', '\\r'.
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///
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/// Note that this returns false for '\\0'.
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412M
LLVM_READONLY inline bool isVerticalWhitespace(unsigned char c) {
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412M
  using namespace charinfo;
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  return (InfoTable[c] & CHAR_VERT_WS) != 0;
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}
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/// Return true if this character is horizontal or vertical ASCII whitespace:
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/// ' ', '\\t', '\\f', '\\v', '\\n', '\\r'.
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///
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/// Note that this returns false for '\\0'.
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LLVM_READONLY inline bool isWhitespace(unsigned char c) {
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  using namespace charinfo;
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  return (InfoTable[c] & (CHAR_HORZ_WS|CHAR_VERT_WS|CHAR_SPACE)) != 0;
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}
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/// Return true if this character is an ASCII digit: [0-9]
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LLVM_READONLY inline bool isDigit(unsigned char c) {
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14.3M
  using namespace charinfo;
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14.3M
  return (InfoTable[c] & CHAR_DIGIT) != 0;
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}
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/// Return true if this character is a lowercase ASCII letter: [a-z]
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21.0k
LLVM_READONLY inline bool isLowercase(unsigned char c) {
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  using namespace charinfo;
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  return (InfoTable[c] & CHAR_LOWER) != 0;
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}
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/// Return true if this character is an uppercase ASCII letter: [A-Z]
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LLVM_READONLY inline bool isUppercase(unsigned char c) {
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  using namespace charinfo;
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  return (InfoTable[c] & CHAR_UPPER) != 0;
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}
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/// Return true if this character is an ASCII letter: [a-zA-Z]
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LLVM_READONLY inline bool isLetter(unsigned char c) {
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  using namespace charinfo;
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  return (InfoTable[c] & (CHAR_UPPER|CHAR_LOWER)) != 0;
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}
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/// Return true if this character is an ASCII letter or digit: [a-zA-Z0-9]
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LLVM_READONLY inline bool isAlphanumeric(unsigned char c) {
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  using namespace charinfo;
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  return (InfoTable[c] & (CHAR_DIGIT|CHAR_UPPER|CHAR_LOWER)) != 0;
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}
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/// Return true if this character is an ASCII hex digit: [0-9a-fA-F]
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LLVM_READONLY inline bool isHexDigit(unsigned char c) {
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  using namespace charinfo;
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  return (InfoTable[c] & (CHAR_DIGIT|CHAR_XLETTER)) != 0;
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}
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/// Return true if this character is an ASCII punctuation character.
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///
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/// Note that '_' is both a punctuation character and an identifier character!
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LLVM_READONLY inline bool isPunctuation(unsigned char c) {
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  using namespace charinfo;
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  return (InfoTable[c] & (CHAR_UNDER|CHAR_PERIOD|CHAR_RAWDEL|CHAR_PUNCT)) != 0;
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}
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/// Return true if this character is an ASCII printable character; that is, a
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/// character that should take exactly one column to print in a fixed-width
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/// terminal.
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LLVM_READONLY inline bool isPrintable(unsigned char c) {
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  using namespace charinfo;
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  return (InfoTable[c] & (CHAR_UPPER|CHAR_LOWER|CHAR_PERIOD|CHAR_PUNCT|
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                          CHAR_DIGIT|CHAR_UNDER|CHAR_RAWDEL|CHAR_SPACE)) != 0;
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}
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/// Return true if this is the body character of a C preprocessing number,
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/// which is [a-zA-Z0-9_.].
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LLVM_READONLY inline bool isPreprocessingNumberBody(unsigned char c) {
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  using namespace charinfo;
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  return (InfoTable[c] &
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102M
          (CHAR_UPPER|CHAR_LOWER|CHAR_DIGIT|CHAR_UNDER|CHAR_PERIOD)) != 0;
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}
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/// Return true if this is the body character of a C++ raw string delimiter.
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LLVM_READONLY inline bool isRawStringDelimBody(unsigned char c) {
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  using namespace charinfo;
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  return (InfoTable[c] & (CHAR_UPPER|CHAR_LOWER|CHAR_PERIOD|
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                          CHAR_DIGIT|CHAR_UNDER|CHAR_RAWDEL)) != 0;
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}
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/// Converts the given ASCII character to its lowercase equivalent.
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///
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/// If the character is not an uppercase character, it is returned as is.
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LLVM_READONLY inline char toLowercase(char c) {
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  if (isUppercase(c))
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    return c + 'a' - 'A';
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  return c;
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}
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/// Converts the given ASCII character to its uppercase equivalent.
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///
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/// If the character is not a lowercase character, it is returned as is.
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LLVM_READONLY inline char toUppercase(char c) {
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  if (isLowercase(c))
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    return c + 'A' - 'a';
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  return c;
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}
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/// Return true if this is a valid ASCII identifier.
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///
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/// Note that this is a very simple check; it does not accept UCNs as valid
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/// identifier characters.
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LLVM_READONLY inline bool isValidIdentifier(StringRef S,
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                                            bool AllowDollar = false) {
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  if (S.empty() || !isIdentifierHead(S[0], AllowDollar))
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    return false;
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  for (StringRef::iterator I = S.begin(), E = S.end(); I != E; ++I)
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    if (!isIdentifierBody(*I, AllowDollar))
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      return false;
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  return true;
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}
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} // end namespace clang
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#endif