Results for: "strip"

Similar to instance_method, searches public method only.

Returns true if the named private method is defined by mod. If inherit is set, the lookup will also search mod’s ancestors. String arguments are converted to symbols.

module A
  def method1()  end
end
class B
  private
  def method2()  end
end
class C < B
  include A
  def method3()  end
end

A.method_defined? :method1                   #=> true
C.private_method_defined? "method1"          #=> false
C.private_method_defined? "method2"          #=> true
C.private_method_defined? "method2", true    #=> true
C.private_method_defined? "method2", false   #=> false
C.method_defined? "method2"                  #=> false

Makes existing class methods private. Often used to hide the default constructor new.

String arguments are converted to symbols. An Array of Symbols and/or Strings is also accepted.

class SimpleSingleton  # Not thread safe
  private_class_method :new
  def SimpleSingleton.create(*args, &block)
    @me = new(*args, &block) if ! @me
    @me
  end
end

for compatibility

Returns true for IPv6 unique local address (fc00::/7, RFC4193). It returns false otherwise.

Returns true for IPv6 multicast node-local scope address. It returns false otherwise.

Returns true for IPv6 multicast link-local scope address. It returns false otherwise.

Returns true for IPv6 multicast site-local scope address. It returns false otherwise.

Returns true for IPv6 multicast organization-local scope address. It returns false otherwise.

Returns true for IPv6 multicast global scope address. It returns false otherwise.

Returns IO instance tied to ARGF for writing if inplace mode is enabled.

Returns the value of the local variable symbol.

def foo
  a = 1
  binding.local_variable_get(:a) #=> 1
  binding.local_variable_get(:b) #=> NameError
end

This method is the short version of the following code:

binding.eval("#{symbol}")

Set local variable named symbol as obj.

def foo
  a = 1
  bind = binding
  bind.local_variable_set(:a, 2) # set existing local variable `a'
  bind.local_variable_set(:b, 3) # create new local variable `b'
                                 # `b' exists only in binding

  p bind.local_variable_get(:a)  #=> 2
  p bind.local_variable_get(:b)  #=> 3
  p a                            #=> 2
  p b                            #=> NameError
end

This method behaves similarly to the following code:

binding.eval("#{symbol} = #{obj}")

if obj can be dumped in Ruby code.

Returns true if a local variable symbol exists.

def foo
  a = 1
  binding.local_variable_defined?(:a) #=> true
  binding.local_variable_defined?(:b) #=> false
end

This method is the short version of the following code:

binding.eval("defined?(#{symbol}) == 'local-variable'")

Breaks the buffer into lines that are shorter than maxwidth

Raises PStore::Error if the calling code is not in a PStore#transaction or if the code is in a read-only PStore#transaction.

Returns the value of a thread local variable that has been set. Note that these are different than fiber local values. For fiber local values, please see Thread#[] and Thread#[]=.

Thread local values are carried along with threads, and do not respect fibers. For example:

Thread.new {
  Thread.current.thread_variable_set("foo", "bar") # set a thread local
  Thread.current["foo"] = "bar"                    # set a fiber local

  Fiber.new {
    Fiber.yield [
      Thread.current.thread_variable_get("foo"), # get the thread local
      Thread.current["foo"],                     # get the fiber local
    ]
  }.resume
}.join.value # => ['bar', nil]

The value “bar” is returned for the thread local, where nil is returned for the fiber local. The fiber is executed in the same thread, so the thread local values are available.

Sets a thread local with key to value. Note that these are local to threads, and not to fibers. Please see Thread#thread_variable_get and Thread#[] for more information.

Establishes proc on thr as the handler for tracing, or disables tracing if the parameter is nil.

See Kernel#set_trace_func.

Adds proc as a handler for tracing.

See Thread#set_trace_func and Kernel#set_trace_func.

Establishes proc as the handler for tracing, or disables tracing if the parameter is nil.

Note: this method is obsolete, please use TracePoint instead.

proc takes up to six parameters:

• an event name string

• a filename string

• a line number

• a method name symbol, or nil

• a binding, or nil

• the class, module, or nil

proc is invoked whenever an event occurs.

Events are:

"c-call"

call a C-language routine

"c-return"

return from a C-language routine

"call"

call a Ruby method

"class"

start a class or module definition

"end"

finish a class or module definition

"line"

execute code on a new line

"raise"

raise an exception

"return"

return from a Ruby method

Tracing is disabled within the context of proc.

class Test
  def test
    a = 1
    b = 2
  end
end

set_trace_func proc { |event, file, line, id, binding, class_or_module|
  printf "%8s %s:%-2d %16p %14p\n", event, file, line, id, class_or_module
}
t = Test.new
t.test

Produces:

c-return prog.rb:8   :set_trace_func         Kernel
    line prog.rb:11              nil            nil
  c-call prog.rb:11             :new          Class
  c-call prog.rb:11      :initialize    BasicObject
c-return prog.rb:11      :initialize    BasicObject
c-return prog.rb:11             :new          Class
    line prog.rb:12              nil            nil
    call prog.rb:2             :test           Test
    line prog.rb:3             :test           Test
    line prog.rb:4             :test           Test
  return prog.rb:5             :test           Test

Returns the last win32 Error of the current executing Thread or nil if none