Results for: "to_proc"

Invoked by Ruby’s core methods to run a blocking operation in a non-blocking way.

Minimal suggested implementation is:

def blocking_operation_wait(work)
  Thread.new(&work).join
end

offline mode. read name=value pairs on standard input.

A convenience method, like object_group, but also reformats the Object’s object_id.

Deprecation method to deprecate Rubygems commands

Deprecation method to deprecate Rubygems commands

Asks the user to answer question with an answer from the given list.

Add the –prerelease option to the option parser.

Marshal dumps exit locations to the given filename.

Usage:

If --yjit-exit-locations is passed, a file named “yjit_exit_locations.dump” will automatically be generated.

If you want to collect traces manually, call dump_exit_locations directly.

Note that calling this in a script will generate stats after the dump is created, so the stats data may include exits from the dump itself.

In a script call:

at_exit do
  RubyVM::YJIT.dump_exit_locations("my_file.dump")
end

Then run the file with the following options:

ruby --yjit --yjit-trace-exits test.rb

Once the code is done running, use Stackprof to read the dump file. See Stackprof documentation for options.

Returns the total bytes of the input data to the stream. FIXME

Returns the total bytes of the output data from the stream. FIXME

Are we doctoring a gem repository?

Generate an Image Button Input element as a string.

src is the URL of the image to use for the button. name is the input name. alt is the alternative text for the image.

Alternatively, the attributes can be specified as a hash.

image_button("url")
  # <INPUT TYPE="image" SRC="url">

image_button("url", "name", "string")
  # <INPUT TYPE="image" SRC="url" NAME="name" ALT="string">

image_button("SRC" => "url", "ALT" => "string")
  # <INPUT TYPE="image" SRC="url" ALT="string">

Generates a radio-button Input element.

name is the name of the input field. value is the value of the field if checked. checked specifies whether the field starts off checked.

Alternatively, the attributes can be specified as a hash.

radio_button("name", "value")
  # <INPUT TYPE="radio" NAME="name" VALUE="value">

radio_button("name", "value", true)
  # <INPUT TYPE="radio" NAME="name" VALUE="value" CHECKED>

radio_button("NAME" => "name", "VALUE" => "value", "ID" => "foo")
  # <INPUT TYPE="radio" NAME="name" VALUE="value" ID="foo">

Starts tracing object allocations.

Clear recorded tracing information.

Open a file with given flags, and protect access with a file lock

Open a file with given flags, and protect access with flock

If the SOURCE_DATE_EPOCH environment variable is set, returns it’s value. Otherwise, returns the time that Gem.source_date_epoch_string was first called in the same format as SOURCE_DATE_EPOCH.

NOTE(@duckinator): The implementation is a tad weird because we want to:

1. Make builds reproducible by default, by having this function always
   return the same result during a given run.
2. Allow changing ENV['SOURCE_DATE_EPOCH'] at runtime, since multiple
   tests that set this variable will be run in a single process.

If you simplify this function and a lot of tests fail, that is likely due to #2 above.

Details on SOURCE_DATE_EPOCH: reproducible-builds.org/specs/source-date-epoch/

The iterator version of the strongly_connected_components method. obj.each_strongly_connected_component is similar to obj.strongly_connected_components.each, but modification of obj during the iteration may lead to unexpected results.

each_strongly_connected_component returns nil.

class G
  include TSort
  def initialize(g)
    @g = g
  end
  def tsort_each_child(n, &b) @g[n].each(&b) end
  def tsort_each_node(&b) @g.each_key(&b) end
end

graph = G.new({1=>[2, 3], 2=>[4], 3=>[2, 4], 4=>[]})
graph.each_strongly_connected_component {|scc| p scc }
#=> [4]
#   [2]
#   [3]
#   [1]

graph = G.new({1=>[2], 2=>[3, 4], 3=>[2], 4=>[]})
graph.each_strongly_connected_component {|scc| p scc }
#=> [4]
#   [2, 3]
#   [1]