Creates a DRb::DRbObject given the reference information to the remote host uri and object ref.
Creates a DRb::DRbObject given the reference information to the remote host uri and object ref.
The most standard error types are subclasses of StandardError. A rescue clause without an explicit Exception class will rescue all StandardErrors (and only those).
def foo raise "Oups" end foo rescue "Hello" #=> "Hello"
On the other hand:
require 'does/not/exist' rescue "Hi"
raises the exception:
LoadError: no such file to load -- does/not/exist
Raised when the arguments are wrong and there isn’t a more specific Exception class.
Ex: passing the wrong number of arguments
[1, 2, 3].first(4, 5)
raises the exception:
ArgumentError: wrong number of arguments (given 2, expected 1)
Ex: passing an argument that is not acceptable:
[1, 2, 3].first(-4)
raises the exception:
ArgumentError: negative array size
Raised when a given numerical value is out of range.
[1, 2, 3].drop(1 << 100)
raises the exception:
RangeError: bignum too big to convert into `long'
Raised when there is an attempt to modify a frozen object.
[1, 2, 3].freeze << 4
raises the exception:
FrozenError: can't modify frozen Array
Raised when a command was not found.
Raised when a command was not found.
Raised when a command was found, but not invoked properly.
Raised when attempting to divide an integer by 0.
42 / 0 #=> ZeroDivisionError: divided by 0
Note that only division by an exact 0 will raise the exception:
42 / 0.0 #=> Float::INFINITY 42 / -0.0 #=> -Float::INFINITY 0 / 0.0 #=> NaN
Raised when attempting to convert special float values (in particular Infinity or NaN) to numerical classes which don’t support them.
Float::INFINITY.to_r #=> FloatDomainError: Infinity
The Comparable mixin is used by classes whose objects may be ordered. The class must define the <=> operator, which compares the receiver against another object, returning a value less than 0, returning 0, or returning a value greater than 0, depending on whether the receiver is less than, equal to, or greater than the other object. If the other object is not comparable then the <=> operator should return nil. Comparable uses <=> to implement the conventional comparison operators (<, <=, ==, >=, and >) and the method between?.
class SizeMatters include Comparable attr :str def <=>(other) str.size <=> other.str.size end def initialize(str) @str = str end def inspect @str end end s1 = SizeMatters.new("Z") s2 = SizeMatters.new("YY") s3 = SizeMatters.new("XXX") s4 = SizeMatters.new("WWWW") s5 = SizeMatters.new("VVVVV") s1 < s2 #=> true s4.between?(s1, s3) #=> false s4.between?(s3, s5) #=> true [ s3, s2, s5, s4, s1 ].sort #=> [Z, YY, XXX, WWWW, VVVVV]
Construct a new BlockCaller object.
ctype is the C type to be returned
args are passed the callback
abi is the abi of the closure
If there is an error in preparing the ffi_cif or ffi_prep_closure, then a RuntimeError will be raised.
include Fiddle cb = Closure::BlockCaller.new(TYPE_INT, [TYPE_INT]) do |one| one end func = Function.new(cb, [TYPE_INT], TYPE_INT)
Creates a new JSON::Ext::Parser instance for the string source.
Creates a new JSON::Ext::Parser instance for the string source.
It will be configured by the opts hash. opts can have the following keys:
opts can have the following keys:
max_nesting: The maximum depth of nesting allowed in the parsed data structures. Disable depth checking with :max_nesting => false|nil|0, it defaults to 100.
allow_nan: If set to true, allow NaN, Infinity and -Infinity in defiance of RFC 4627 to be parsed by the Parser. This option defaults to false.
symbolize_names: If set to true, returns symbols for the names (keys) in a JSON object. Otherwise strings are returned, which is also the default. It’s not possible to use this option in conjunction with the create_additions option.
create_additions: If set to false, the Parser doesn’t create additions even if a matching class and create_id was found. This option defaults to false.
object_class: Defaults to Hash
array_class: Defaults to Array
Creates a new SSL context.
If an argument is given, ssl_version= is called with the value. Note that this form is deprecated. New applications should use min_version= and max_version= as necessary.
Creates a new SSL socket from io which must be a real IO object (not an IO-like object that responds to read/write).
If ctx is provided the SSL Sockets initial params will be taken from the context.
The OpenSSL::Buffering module provides additional IO methods.
This method will freeze the SSLContext if one is provided; however, session management is still allowed in the frozen SSLContext.
Creates a new instance of SSLServer.
srv is an instance of TCPServer.
ctx is an instance of OpenSSL::SSL::SSLContext.
Creates an X509 extension.
The extension may be created from der data or from an extension oid and value. The oid may be either an OID or an extension name. If critical is true the extension is marked critical.