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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]]

Mixin for holding meta-information.

Flags for arguments nodes.

Flags for interpolated string nodes that indicated mutability if they are also marked as literals.

Flags for keyword hash nodes.

A parser for the pack template language.

Prism parses deterministically for the same input. This provides a nice property that is exposed through the node_id API on nodes. Effectively this means that for the same input, these values will remain consistent every time the source is parsed. This means we can reparse the source same with a node_id value and find the exact same node again.

The Relocation module provides an API around this property. It allows you to “save” nodes and locations using a minimal amount of memory (just the node_id and a field identifier) and then reify them later.

This module is responsible for converting the prism syntax tree into other syntax trees.

Random number formatter.

Formats generated random numbers in many manners. When 'random/formatter' is required, several methods are added to empty core module Random::Formatter, making them available as Random’s instance and module methods.

Standard library SecureRandom is also extended with the module, and the methods described below are available as a module methods in it.

Examples

Generate random hexadecimal strings:

require 'random/formatter'

prng = Random.new
prng.hex(10) #=> "52750b30ffbc7de3b362"
prng.hex(10) #=> "92b15d6c8dc4beb5f559"
prng.hex(13) #=> "39b290146bea6ce975c37cfc23"
# or just
Random.hex #=> "1aed0c631e41be7f77365415541052ee"

Generate random base64 strings:

prng.base64(10) #=> "EcmTPZwWRAozdA=="
prng.base64(10) #=> "KO1nIU+p9DKxGg=="
prng.base64(12) #=> "7kJSM/MzBJI+75j8"
Random.base64(4) #=> "bsQ3fQ=="

Generate random binary strings:

prng.random_bytes(10) #=> "\016\t{\370g\310pbr\301"
prng.random_bytes(10) #=> "\323U\030TO\234\357\020\a\337"
Random.random_bytes(6) #=> "\xA1\xE6Lr\xC43"

Generate alphanumeric strings:

prng.alphanumeric(10) #=> "S8baxMJnPl"
prng.alphanumeric(10) #=> "aOxAg8BAJe"
Random.alphanumeric #=> "TmP9OsJHJLtaZYhP"

Generate UUIDs:

prng.uuid #=> "2d931510-d99f-494a-8c67-87feb05e1594"
prng.uuid #=> "bad85eb9-0713-4da7-8d36-07a8e4b00eab"
Random.uuid #=> "f14e0271-de96-45cc-8911-8910292a42cd"

All methods are available in the standard library SecureRandom, too:

SecureRandom.hex #=> "05b45376a30c67238eb93b16499e50cf"

Generate a random number in the given range as Random does

prng.random_number       #=> 0.5816771641321361
prng.random_number(1000) #=> 485
prng.random_number(1..6) #=> 3
prng.rand                #=> 0.5816771641321361
prng.rand(1000)          #=> 485
prng.rand(1..6)          #=> 3

Mixin methods for install and update options for Gem::Commands

This module is used for safely loading YAML specs from a gem. The ‘safe_load` method defined on this module is specifically designed for loading Gem specifications. For loading other YAML safely, please see Psych.safe_load

Mixin methods for Gem::Command to promote available RubyGems update

A stub yaml serializer that can handle only hashes and strings (as of now).

Generic exception class of the Timestamp module.

Class for representing HTTP method PATCH:

require 'net/http'
uri = URI('http://example.com')
hostname = uri.hostname # => "example.com"
uri.path = '/posts'
req = Net::HTTP::Patch.new(uri) # => #<Net::HTTP::Patch PATCH>
req.body = '{"title": "foo","body": "bar","userId": 1}'
req.content_type = 'application/json'
res = Net::HTTP.start(hostname) do |http|
  http.request(req)
end

See Request Headers.

Properties:

• Request body: yes.

• Response body: yes.

• Safe: no.

• Idempotent: no.

• Cacheable: no.

Related:

• Net::HTTP#patch: sends PATCH request, returns response object.

Class for representing WebDAV method PROPPATCH:

require 'net/http'
uri = URI('http://example.com')
hostname = uri.hostname # => "example.com"
req = Net::HTTP::Proppatch.new(uri) # => #<Net::HTTP::Proppatch PROPPATCH>
res = Net::HTTP.start(hostname) do |http|
  http.request(req)
end

See Request Headers.

Related:

• Net::HTTP#proppatch: sends PROPPATCH request, returns response object.

Switch that can omit argument.

If we have an identifier that follows a method name like:

def foo bar

then Ripper will mark bar as END|LABEL if there is a local in a parent scope named bar because it hasn’t pushed the local table yet. We do this more accurately, so we need to allow comparing against both END and END|LABEL.

An optional location field represents the location of some part of the node in the source code that may or may not be present. It resolves to either a Prism::Location or nil in Ruby.