Module: WithRefinements

Defined in:
lib/with_refinements.rb,
lib/with_refinements/version.rb

Constant Summary collapse

VERSION = 
"0.5.0"

Class Method Summary collapse

Class Method Details

.context(refinements) ⇒ Object 



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# File 'lib/with_refinements.rb', line 9

def context(refinements)
  @context_cache[refinements] ||= clean_binding.tap do |b|
    b.local_variable_set(:__refinements__, refinements)
    b.eval('__refinements__.each {|r| using r }')
  end
end

.refined_proc(c, block) ⇒ Object 



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# File 'lib/with_refinements.rb', line 16

def refined_proc(c, block)
  @refined_proc_cache[c][block.source_location] ||= (
    lvars = block.binding.local_variables
    c.eval(<<~RUBY)
      proc do |__binding__|
        proc { |#{lvars.join(",")}|
          ret = __binding__.receiver.instance_exec #{code_from_block(block)}
          #{lvars.map {|v| "__binding__.local_variable_set(:#{v}, #{v})" }.join("\n")}
          ret
        }.call(*__binding__.local_variables.map {|v| __binding__.local_variable_get(v) })
      end
    RUBY
  )
end

.refined_proc_light(c, block) ⇒ Object 



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# File 'lib/with_refinements.rb', line 31

def refined_proc_light(c, block)
  @refined_proc_light_cache[c][block.source_location] ||= (
    c.eval(<<~RUBY)
      proc { |__receiver__, __args__| __receiver__.instance_exec(*__args__) #{code_from_block(block)} }
    RUBY
  )
end

.with_refinements(*refinements, &block) ⇒ Object 



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# File 'lib/with_refinements.rb', line 69

def with_refinements(*refinements, &block)
  c = WithRefinements.context(refinements)
  p = WithRefinements.refined_proc(c, block)
  p.call(block.binding)
end

.with_refinements_light(*refinements, args: [], &block) ⇒ Object 



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# File 'lib/with_refinements.rb', line 75

def with_refinements_light(*refinements, args: [], &block)
  c = WithRefinements.context(refinements)
  p = WithRefinements.refined_proc_light(c, block)
  p.call(block.binding.receiver, args)
end