Function CheckTrailingSemicolon

tools/cpplint.py:5000–5155

Looks for redundant trailing semicolon. Args: filename: The name of the current file. clean_lines: A CleansedLines instance containing the file. linenum: The number of the line to check. error: The function to call with any errors found.

(filename, clean_lines, linenum, error)

def CheckTrailingSemicolon(filename, clean_lines, linenum, error):
    """Looks for redundant trailing semicolon.

    Args:
      filename: The name of the current file.
      clean_lines: A CleansedLines instance containing the file.
      linenum: The number of the line to check.
      error: The function to call with any errors found.
    """

    line = clean_lines.elided[linenum]

    # Block bodies should not be followed by a semicolon.  Due to C++11
    # brace initialization, there are more places where semicolons are
    # required than not, so we explicitly list the allowed rules rather
    # than listing the disallowed ones.  These are the places where "};"
    # should be replaced by just "}":
    # 1. Some flavor of block following closing parenthesis:
    #    for (;;) {};
    #    while (...) {};
    #    switch (...) {};
    #    Function(...) {};
    #    if (...) {};
    #    if (...) else if (...) {};
    #
    # 2. else block:
    #    if (...) else {};
    #
    # 3. const member function:
    #    Function(...) const {};
    #
    # 4. Block following some statement:
    #    x = 42;
    #    {};
    #
    # 5. Block at the beginning of a function:
    #    Function(...) {
    #      {};
    #    }
    #
    #    Note that naively checking for the preceding "{" will also match
    #    braces inside multi-dimensional arrays, but this is fine since
    #    that expression will not contain semicolons.
    #
    # 6. Block following another block:
    #    while (true) {}
    #    {};
    #
    # 7. End of namespaces:
    #    namespace {};
    #
    #    These semicolons seems far more common than other kinds of
    #    redundant semicolons, possibly due to people converting classes
    #    to namespaces.  For now we do not warn for this case.
    #
    # Try matching case 1 first.
    match = re.match(r"^(.*\)\s*)\{", line)
    if match: