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Patterns used to parse URI’s

A state that encapsulates a set of {#requirements} with an {Array} of possibilities

A state that encapsulates a single possibility to fulfill the given {#requirement}

@!visibility private

Provides information about specifications and dependencies to the resolver, allowing the {Resolver} class to remain generic while still providing power and flexibility.

This module contains the methods that users of Gem::Resolver::Molinillo must to implement, using knowledge of their own model classes.

Delegates all {Gem::Resolver::Molinillo::ResolutionState} methods to a ‘#state` property.

@!visibility private @see DependencyGraph#detach_vertex_named

@!visibility private @see DependencyGraph#tag

Delegates all {Gem::Resolver::Molinillo::SpecificationProvider} methods to a ‘#specification_provider` property.

The path to the data directory specified by the gem name. If the package is not available as a gem, return nil.

The path to the data directory for this gem.

Sets the cipher’s additional authenticated data. This field must be set when using AEAD cipher modes such as GCM or CCM. If no associated data shall be used, this method must still be called with a value of “”. The contents of this field should be non-sensitive data which will be added to the ciphertext to generate the authentication tag which validates the contents of the ciphertext.

The AAD must be set prior to encryption or decryption. In encryption mode, it must be set after calling Cipher#encrypt and setting Cipher#key= and Cipher#iv=. When decrypting, the authenticated data must be set after key, iv and especially after the authentication tag has been set. I.e. set it only after calling Cipher#decrypt, Cipher#key=, Cipher#iv= and Cipher#auth_tag= first.

Immediately writes to disk all data buffered in the stream, via the operating system’s: fdatasync(2), if supported, otherwise via fsync(2), if supported; otherwise raises an exception.

Implementation for Specification#validate_metadata

Calls the block with each repeated permutation of length n of the elements of self; each permutation is an Array; returns self. The order of the permutations is indeterminate.

When a block and a positive Integer argument n are given, calls the block with each n-tuple repeated permutation of the elements of self. The number of permutations is self.size**n.

n = 1:

a = [0, 1, 2]
a.repeated_permutation(1) {|permutation| p permutation }

Output:

[0]
[1]
[2]

n = 2:

a.repeated_permutation(2) {|permutation| p permutation }

Output:

[0, 0]
[0, 1]
[0, 2]
[1, 0]
[1, 1]
[1, 2]
[2, 0]
[2, 1]
[2, 2]

If n is zero, calls the block once with an empty Array.

If n is negative, does not call the block:

a.repeated_permutation(-1) {|permutation| fail 'Cannot happen' }

Returns a new Enumerator if no block given:

a = [0, 1, 2]
a.repeated_permutation(2) # => #<Enumerator: [0, 1, 2]:permutation(2)>

Using Enumerators, it’s convenient to show the permutations and counts for some values of n:

e = a.repeated_permutation(0)
e.size # => 1
e.to_a # => [[]]
e = a.repeated_permutation(1)
e.size # => 3
e.to_a # => [[0], [1], [2]]
e = a.repeated_permutation(2)
e.size # => 9
e.to_a # => [[0, 0], [0, 1], [0, 2], [1, 0], [1, 1], [1, 2], [2, 0], [2, 1], [2, 2]]

Sets the date-time format.

Argument datetime_format should be either of these:

• A string suitable for use as a format for method Time#strftime.

• nil: the logger uses '%Y-%m-%dT%H:%M:%S.%6N'.