Results for: "Array"

Raised on attempt to Ractor#take if there was an uncaught exception in the Ractor. Its cause will contain the original exception, and ractor is the original ractor it was raised in.

r = Ractor.new { raise "Something weird happened" }

begin
  r.take
rescue => e
  p e             # => #<Ractor::RemoteError: thrown by remote Ractor.>
  p e.ractor == r # => true
  p e.cause       # => #<RuntimeError: Something weird happened>
end

Raised on an attempt to access an object which was moved in Ractor#send or Ractor.yield.

r = Ractor.new { sleep }

ary = [1, 2, 3]
r.send(ary, move: true)
ary.inspect
# Ractor::MovedError (can not send any methods to a moved object)

Raised when an attempt is made to send a message to a closed port, or to retrieve a message from a closed and empty port. Ports may be closed explicitly with Ractor#close_outgoing/close_incoming and are closed implicitly when a Ractor terminates.

r = Ractor.new { sleep(500) }
r.close_outgoing
r.take # Ractor::ClosedError

ClosedError is a descendant of StopIteration, so the closing of the ractor will break the loops without propagating the error:

r = Ractor.new do
  loop do
    msg = receive # raises ClosedError and loop traps it
    puts "Received: #{msg}"
  end
  puts "loop exited"
end

3.times{|i| r << i}
r.close_incoming
r.take
puts "Continue successfully"

This will print:

Received: 0
Received: 1
Received: 2
loop exited
Continue successfully

Raised by Encoding and String methods when a transcoding operation fails.

Raised by Encoding and String methods when the string being transcoded contains a byte invalid for the either the source or target encoding.

Raised by transcoding methods when a named encoding does not correspond with a known converter.

Raised by Timeout.timeout when the block times out.

AbstractSyntaxTree provides methods to parse Ruby code into abstract syntax trees. The nodes in the tree are instances of RubyVM::AbstractSyntaxTree::Node.

This module is MRI specific as it exposes implementation details of the MRI abstract syntax tree.

This module is experimental and its API is not stable, therefore it might change without notice. As examples, the order of children nodes is not guaranteed, the number of children nodes might change, there is no way to access children nodes by name, etc.

If you are looking for a stable API or an API working under multiple Ruby implementations, consider using the parser gem or Ripper. If you would like to make RubyVM::AbstractSyntaxTree stable, please join the discussion at bugs.ruby-lang.org/issues/14844.

A mixin that provides methods for parsing C struct and prototype signatures.

Example

require 'fiddle/import'

include Fiddle::CParser
  #=> Object

parse_ctype('int')
  #=> Fiddle::TYPE_INT

parse_struct_signature(['int i', 'char c'])
  #=> [[Fiddle::TYPE_INT, Fiddle::TYPE_CHAR], ["i", "c"]]

parse_signature('double sum(double, double)')
  #=> ["sum", Fiddle::TYPE_DOUBLE, [Fiddle::TYPE_DOUBLE, Fiddle::TYPE_DOUBLE]]

The WIN32OLE::VARIANT module includes constants of VARIANT type constants. The constants is used when creating WIN32OLE_VARIANT object.

obj = WIN32OLE_VARIANT.new("2e3", WIN32OLE::VARIANT::VT_R4)
obj.value # => 2000.0

Module mixed in to all SMTP error classes

Extends command line arguments array (ARGV) to parse itself.

Module that defines the default UserInteraction. Any class including this module will have access to the ui method that returns the default UI.

UserInteraction allows RubyGems to interact with the user through standard methods that can be replaced with more-specific UI methods for different displays.

Since UserInteraction dispatches to a concrete UI class you may need to reference other classes for specific behavior such as Gem::ConsoleUI or Gem::SilentUI.

Example:

class X
  include Gem::UserInteraction

  def get_answer
    n = ask("What is the meaning of life?")
  end
end

Class that parses String’s into URI’s.

It contains a Hash set of patterns and Regexp’s that match and validate.

Indicates some other unhandled resolver error was encountered.

Raised when a lockfile cannot be parsed

An error caused by attempting to fulfil a dependency that was circular

@note This exception will be thrown if and only if a {Vertex} is added to a

{DependencyGraph} that has a {DependencyGraph::Vertex#path_to?} an
existing {DependencyGraph::Vertex}

This is the JSON parser implemented as a C extension. It can be configured to be used by setting

JSON.parser = JSON::Ext::Parser

with the method parser= in JSON.

Generic error class for all errors raised in ASN1 and any of the classes defined in it.