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Deserializes JSON string by constructing new Exception object with message m and backtrace b serialized with to_json

Return true if the caused method was called as private.

When this module is included in another, Ruby calls append_features in this module, passing it the receiving module in mod. Ruby’s default implementation is to add the constants, methods, and module variables of this module to mod if this module has not already been added to mod or one of its ancestors. See also Module#include.

When this module is prepended in another, Ruby calls prepend_features in this module, passing it the receiving module in mod. Ruby’s default implementation is to overlay the constants, methods, and module variables of this module to mod if this module has not already been added to mod or one of its ancestors. See also Module#prepend.

Returns an array of all modules used in the current scope. The ordering of modules in the resulting array is not defined.

module A
  refine Object do
  end
end

module B
  refine Object do
  end
end

using A
using B
p Module.used_refinements

produces:

[#<refinement:Object@B>, #<refinement:Object@A>]

Creates instance variables and corresponding methods that return the value of each instance variable. Equivalent to calling “attr:name” on each name in turn. String arguments are converted to symbols. Returns an array of defined method names as symbols.

Creates an accessor method to allow assignment to the attribute symbol.id2name. String arguments are converted to symbols. Returns an array of defined method names as symbols.

Defines a named attribute for this module, where the name is symbol.id2name, creating an instance variable (@name) and a corresponding access method to read it. Also creates a method called name= to set the attribute. String arguments are converted to symbols. Returns an array of defined method names as symbols.

module Mod
  attr_accessor(:one, :two) #=> [:one, :one=, :two, :two=]
end
Mod.instance_methods.sort   #=> [:one, :one=, :two, :two=]

Makes a list of existing constants private.

Makes a list of existing constants deprecated. Attempt to refer to them will produce a warning.

module HTTP
  NotFound = Exception.new
  NOT_FOUND = NotFound # previous version of the library used this name

  deprecate_constant :NOT_FOUND
end

HTTP::NOT_FOUND
# warning: constant HTTP::NOT_FOUND is deprecated

Import a JSON Marshalled object.

method used for JSON marshalling support.

Deserializes JSON string by converting numerator value n, denominator value d, to a Rational object.

Returns true if the arguments define a valid ordinal date, false otherwise:

Date.valid_ordinal?(2001, 34)  # => true
Date.valid_ordinal?(2001, 366) # => false

See argument start.

Related: Date.jd, Date.ordinal.

Returns true if the arguments define a valid ordinal date, false otherwise:

Date.valid_date?(2001, 2, 3)  # => true
Date.valid_date?(2001, 2, 29) # => false
Date.valid_date?(2001, 2, -1) # => true

See argument start.

Date.valid_date? is an alias for Date.valid_civil?.

Related: Date.jd, Date.new.

Returns true if the arguments define a valid commercial date, false otherwise:

Date.valid_commercial?(2001, 5, 6) # => true
Date.valid_commercial?(2001, 5, 8) # => false

See Date.commercial.

See argument start.

Related: Date.jd, Date.commercial.

Equivalent to >> with argument n.

Equivalent to << with argument n.

Returns a new Time object with the same value as self; if self is a Julian date, derives its Gregorian date for conversion to the Time object:

Date.new(2001, 2, 3).to_time               # => 2001-02-03 00:00:00 -0600
Date.new(2001, 2, 3, Date::JULIAN).to_time # => 2001-02-16 00:00:00 -0600

Returns self.

Deserializes JSON string by converting Julian year y, month m, day d and Day of Calendar Reform sg to Date.

Returns a Time object which denotes self.

Returns a Date object which denotes self.

Deserializes JSON string by converting year y, month m, day d, hour H, minute M, second S, offset of and Day of Calendar Reform sg to DateTime.

Returns self.

Returns a Date object which denotes self.