module With

attribute　String

The subject description of this context.

attribute　Hash

The variables available in this context.

parameter　parent　Class

The parent context class.

parameter　subject　String

The subject description.

parameter　variables　Hash

Variables to make available in the context.

parameter　unique　Boolean

Whether the identity should be unique.

yields　{...}

Optional block containing nested tests.

returns　Class

A new with block class.

def self.build(parent, subject, variables, unique: true, &block)
	base = Class.new(parent)
	base.singleton_class.prepend(With)
	base.children = Hash.new
	base.subject = subject
	base.description = subject
	base.identity = Identity.nested(parent.identity, base.description, unique: unique)
	base.set_temporary_name("#{self}[#{base.description}]")
	
	base.variables = variables
	
	base.define_method(:description, ->{subject})
	
	variables.each do |key, value|
		base.define_method(key, ->{value})
	end
	
	if block_given?
		base.class_exec(&block)
	end
	
	return base
end

parameter　output　Output

The output target.

def print(output)
	self.superclass.print(output)
	
	output.write(
		" with ", :with, self.description, :reset,
		# " ", :variables, self.variables.inspect
	)
end