Free and recompile all existing JIT code
Determines whether the given ‘requirement` is satisfied by the given `spec`, in the context of the current `activated` dependency graph.
@param [Object] requirement @param [DependencyGraph] activated the current dependency graph in the
resolution process.
@param [Object] spec @return [Boolean] whether ‘requirement` is satisfied by `spec` in the
context of the current `activated` dependency graph.
@param [Object] requirement @return [Array<Object>] the list of requirements that led to
`requirement` being required.
Unwinds the states stack because a conflict has been encountered @return [void]
@param [DependencyState] state @param [Array] binding_requirements array of requirements @return [Boolean] whether or not the given state has any possibilities
that could satisfy the given requirements
(see Gem::Resolver::Molinillo::ResolutionState#unused_unwind_options)
Shows surrounding kw/end pairs
The purpose of showing these extra pairs is due to cases of ambiguity when only one visible line is matched.
For example:
1 class Dog 2 def bark 4 def eat 5 end 6 end
In this case either line 2 could be missing an ‘end` or line 4 was an extra line added by mistake (it happens).
When we detect the above problem it shows the issue as only being on line 2
2 def bark
Showing “neighbor” keyword pairs gives extra context:
2 def bark 4 def eat 5 end
Returns the cofactor of the group.
See the OpenSSL
documentation for EC_GROUP_get_cofactor()
@return [String] a string suitable for debugging
Defines a public singleton method in the receiver. The method parameter can be a Proc
, a Method
or an UnboundMethod
object. If a block is specified, it is used as the method body. If a block or a method has parameters, they’re used as method parameters.
class A class << self def class_name to_s end end end A.define_singleton_method(:who_am_i) do "I am: #{class_name}" end A.who_am_i # ==> "I am: A" guy = "Bob" guy.define_singleton_method(:hello) { "#{self}: Hello there!" } guy.hello #=> "Bob: Hello there!" chris = "Chris" chris.define_singleton_method(:greet) {|greeting| "#{greeting}, I'm Chris!" } chris.greet("Hi") #=> "Hi, I'm Chris!"
Returns true
if the stream will be closed on exec, false
otherwise:
f = File.open('t.txt') f.close_on_exec? # => true f.close_on_exec = false f.close_on_exec? # => false f.close
Sets a close-on-exec flag.
f = open("/dev/null") f.close_on_exec = true system("cat", "/proc/self/fd/#{f.fileno}") # cat: /proc/self/fd/3: No such file or directory f.closed? #=> false
Ruby sets close-on-exec flags of all file descriptors by default since Ruby 2.0.0. So you don’t need to set by yourself. Also, unsetting a close-on-exec flag can cause file descriptor leak if another thread use fork() and exec() (via system() method for example). If you really needs file descriptor inheritance to child process, use spawn()‘s argument such as fd=>fd.
Returns a string representation of lex_state.
Invoked as a callback whenever a singleton method is added to the receiver.
module Chatty def Chatty.singleton_method_added(id) puts "Adding #{id.id2name}" end def self.one() end def two() end def Chatty.three() end end
produces:
Adding singleton_method_added Adding one Adding three
Invoked as a callback whenever a singleton method is undefined in the receiver.
module Chatty def Chatty.singleton_method_undefined(id) puts "Undefining #{id.id2name}" end def Chatty.one() end class << self undef_method(:one) end end
produces:
Undefining one
Yields each frame of the current execution stack as a backtrace location object.
Returns the last win32 Error
of the current executing Thread
or nil if none