Results for: "minmax"

Helper methods for both Gem::Installer and Gem::Uninstaller

Shows the context around code provided by “falling” indentation

If this is the original code lines:

class OH
  def hello
    it "foo" do
  end
end

And this is the line that is captured

it "foo" do

It will yield its surrounding context:

class OH
  def hello
  end
end

Example:

FallingIndentLines.new(
    block: block,
    code_lines: @code_lines
).call do |line|
  @lines_to_output << line
end

Enumerator::Chain is a subclass of Enumerator, which represents a chain of enumerables that works as a single enumerator.

This type of objects can be created by Enumerable#chain and Enumerator#+.

Fiddle::Pointer is a class to handle C pointers

This exception is raised if the nesting of parsed data structures is too deep.

This class is used as a return value from ObjectSpace::reachable_objects_from.

When ObjectSpace::reachable_objects_from returns an object with references to an internal object, an instance of this class is returned.

You can use the type method to check the type of the internal object.

OpenSSL::HMAC allows computing Hash-based Message Authentication Code (HMAC). It is a type of message authentication code (MAC) involving a hash function in combination with a key. HMAC can be used to verify the integrity of a message as well as the authenticity.

OpenSSL::HMAC has a similar interface to OpenSSL::Digest.

HMAC-SHA256 using one-shot interface

key = "key"
data = "message-to-be-authenticated"
mac = OpenSSL::HMAC.hexdigest("SHA256", key, data)
#=> "cddb0db23f469c8bf072b21fd837149bd6ace9ab771cceef14c9e517cc93282e"

HMAC-SHA256 using incremental interface

data1 = File.binread("file1")
data2 = File.binread("file2")
key = "key"
hmac = OpenSSL::HMAC.new(key, 'SHA256')
hmac << data1
hmac << data2
mac = hmac.digest

This class is the access to openssl’s ENGINE cryptographic module implementation.

See also, www.openssl.org/docs/crypto/engine.html

Document-class: OpenSSL::HMAC

OpenSSL::HMAC allows computing Hash-based Message Authentication Code (HMAC). It is a type of message authentication code (MAC) involving a hash function in combination with a key. HMAC can be used to verify the integrity of a message as well as the authenticity.

OpenSSL::HMAC has a similar interface to OpenSSL::Digest.

HMAC-SHA256 using one-shot interface

key = "key"
data = "message-to-be-authenticated"
mac = OpenSSL::HMAC.hexdigest("SHA256", key, data)
#=> "cddb0db23f469c8bf072b21fd837149bd6ace9ab771cceef14c9e517cc93282e"

HMAC-SHA256 using incremental interface

data1 = File.binread("file1")
data2 = File.binread("file2")
key = "key"
hmac = OpenSSL::HMAC.new(key, 'SHA256')
hmac << data1
hmac << data2
mac = hmac.digest

Subclasses ‘BadAlias` for backwards compatibility

Subclass of Zlib::Error. This error is raised when the zlib stream is currently in progress.

For example:

inflater = Zlib::Inflate.new
inflater.inflate(compressed) do
  inflater.inflate(compressed) # Raises Zlib::InProgressError
end

Zlib:Inflate is the class for decompressing compressed data. Unlike Zlib::Deflate, an instance of this class is not able to duplicate (clone, dup) itself.

exception to wait for reading by EAGAIN. see IO.select.

exception to wait for writing by EAGAIN. see IO.select.

exception to wait for reading by EINPROGRESS. see IO.select.

exception to wait for writing by EINPROGRESS. see IO.select.

The InstructionSequence class represents a compiled sequence of instructions for the Virtual Machine used in MRI. Not all implementations of Ruby may implement this class, and for the implementations that implement it, the methods defined and behavior of the methods can change in any version.

With it, you can get a handle to the instructions that make up a method or a proc, compile strings of Ruby code down to VM instructions, and disassemble instruction sequences to strings for easy inspection. It is mostly useful if you want to learn how YARV works, but it also lets you control various settings for the Ruby iseq compiler.

You can find the source for the VM instructions in insns.def in the Ruby source.

The instruction sequence results will almost certainly change as Ruby changes, so example output in this documentation may be different from what you see.

Of course, this class is MRI specific.

The error thrown when the parser encounters illegal CSV formatting.

The DidYouMean::Formatter is the basic, default formatter for the gem. The formatter responds to the message_for method and it returns a human readable string.

The DidYouMean::Formatter is the basic, default formatter for the gem. The formatter responds to the message_for method and it returns a human readable string.