Class: RIO::NullIO
Overview
:nodoc: all
Class Method Summary collapse
Instance Method Summary collapse
- #<<(obj) ⇒ Object
- #binmode ⇒ Object
- #callstr(func, *args) ⇒ Object
- #close ⇒ Object
- #close_read(*objs) ⇒ Object
- #close_write(*objs) ⇒ Object
- #closed? ⇒ Boolean
- #each_byte(sep_string = $/, &block) ⇒ Object
- #each_line(sep_string = $/, &block) ⇒ Object (also: #each)
- #eof? ⇒ Boolean
- #fcntl(integer_cmd, arg) ⇒ Object
- #fileno ⇒ Object
- #flush ⇒ Object
- #fsync ⇒ Object
- #getc ⇒ Object
- #gets(sep_string = $/) ⇒ Object
-
#initialize(a = nil, m = 'r') ⇒ NullIO
constructor
A new instance of NullIO.
- #ioctl(integer_cmd, arg) ⇒ Object
- #isatty ⇒ Object
- #lineno ⇒ Object
- #lineno=(a) ⇒ Object
- #pos ⇒ Object
- #pos=(n) ⇒ Object
- #print(*objs) ⇒ Object
- #printf(fmt, *args) ⇒ Object
- #puts(*objs) ⇒ Object
- #read ⇒ Object
- #readchar ⇒ Object
- #readline(sep_string = $/) ⇒ Object
- #readlines(sep_string = $/) ⇒ Object
- #rewind ⇒ Object
- #tty? ⇒ Boolean
- #write(string) ⇒ Object
Constructor Details
#initialize(a = nil, m = 'r') ⇒ NullIO
Returns a new instance of NullIO.
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# File 'lib/rio/nullio.rb', line 64 def initialize(a=nil,m='r') # p "#{callstr('initialize',a,m)} hnd=#{@hnd.inspect}" @lineno = 0 @open = true @mode = NullIOMode.new(m) end |
Class Method Details
.open(a = nil, m = 'r', &block) ⇒ Object
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# File 'lib/rio/nullio.rb', line 72 def self.open(a=nil,m='r',&block) rtn = io = new(a,m) if block_given? rtn = yield(io) io.close end rtn end |
Instance Method Details
#<<(obj) ⇒ Object
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# File 'lib/rio/nullio.rb', line 140 def <<(obj) self end |
#binmode ⇒ Object
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# File 'lib/rio/nullio.rb', line 150 def binmode() nil end |
#callstr(func, *args) ⇒ Object
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# File 'lib/rio/nullio.rb', line 154 def callstr(func,*args) self.class.to_s+'['+self.to_s+']'+'.'+func.to_s+'('+args.join(',')+')' end |
#close ⇒ Object
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# File 'lib/rio/nullio.rb', line 95 def close @open = false end |
#close_read(*objs) ⇒ Object
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# File 'lib/rio/nullio.rb', line 132 def close_read(*objs) raise IOError,"NullIO is not a duplex stream" nil end |
#close_write(*objs) ⇒ Object
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# File 'lib/rio/nullio.rb', line 136 def close_write(*objs) raise IOError,"NullIO is not a duplex stream" nil end |
#closed? ⇒ Boolean
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# File 'lib/rio/nullio.rb', line 92 def closed? not @open end |
#each_byte(sep_string = $/, &block) ⇒ Object
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# File 'lib/rio/nullio.rb', line 104 def each_byte(sep_string=$/,&block) nil end |
#each_line(sep_string = $/, &block) ⇒ Object Also known as: each
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# File 'lib/rio/nullio.rb', line 101 def each_line(sep_string=$/,&block) self end |
#eof? ⇒ Boolean
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# File 'lib/rio/nullio.rb', line 98 def eof?() true end |
#fcntl(integer_cmd, arg) ⇒ Object
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# File 'lib/rio/nullio.rb', line 107 def fcntl(integer_cmd,arg) raise NotSupportedException,NotSupportedException.emsg('fcntl',self) end |
#fileno ⇒ Object
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# File 'lib/rio/nullio.rb', line 80 def fileno() nil end |
#flush ⇒ Object
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# File 'lib/rio/nullio.rb', line 81 def flush() nil end |
#fsync ⇒ Object
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# File 'lib/rio/nullio.rb', line 82 def fsync() nil end |
#getc ⇒ Object
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# File 'lib/rio/nullio.rb', line 90 def getc() nil end |
#gets(sep_string = $/) ⇒ Object
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# File 'lib/rio/nullio.rb', line 114 def gets(sep_string=$/) raise IOError,"NullIO is not open for reading" unless @mode.can_read? nil end |
#ioctl(integer_cmd, arg) ⇒ Object
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# File 'lib/rio/nullio.rb', line 110 def ioctl(integer_cmd,arg) raise NotSupportedException,NotSupportedException.emsg('fcntl',self) end |
#isatty ⇒ Object
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# File 'lib/rio/nullio.rb', line 83 def isatty() false end |
#lineno ⇒ Object
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# File 'lib/rio/nullio.rb', line 70 def lineno() @lineno end |
#lineno=(a) ⇒ Object
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# File 'lib/rio/nullio.rb', line 71 def lineno=(a) @lineno = a end |
#pos ⇒ Object
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# File 'lib/rio/nullio.rb', line 85 def pos() 0 end |
#pos=(n) ⇒ Object
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# File 'lib/rio/nullio.rb', line 86 def pos=(n) 0 end |
#print(*objs) ⇒ Object
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# File 'lib/rio/nullio.rb', line 128 def print(*objs) raise IOError,"NullIO is not open for writing" unless @mode.can_write? nil end |
#printf(fmt, *args) ⇒ Object
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# File 'lib/rio/nullio.rb', line 151 def printf(fmt,*args) print(sprintf(fmt,*args)) end |
#puts(*objs) ⇒ Object
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# File 'lib/rio/nullio.rb', line 143 def puts(*objs) nil end |
#read ⇒ Object
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# File 'lib/rio/nullio.rb', line 89 def read() nil end |
#readchar ⇒ Object
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# File 'lib/rio/nullio.rb', line 88 def readchar() nil end |
#readline(sep_string = $/) ⇒ Object
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# File 'lib/rio/nullio.rb', line 118 def readline(sep_string=$/) raise EOFError end |
#readlines(sep_string = $/) ⇒ Object
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# File 'lib/rio/nullio.rb', line 122 def readlines(sep_string=$/) [] end |
#rewind ⇒ Object
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# File 'lib/rio/nullio.rb', line 125 def rewind @lineno = 0 end |
#tty? ⇒ Boolean
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# File 'lib/rio/nullio.rb', line 84 def tty?() false end |
#write(string) ⇒ Object
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# File 'lib/rio/nullio.rb', line 146 def write(string) print(string) string.size end |