Class: When::Events::Range

Inherits:
Range
  • Object
show all
Defined in:
lib/when_exe/events.rb

Overview

イベント管理用範囲オブジェクト

Constant Summary collapse

Delta =

実数のための exclude_end? 判定用マージン

When::TM::Duration::SECOND / 4096.0 / When::TM::Duration::DAY

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(first, last, exclude_end = false) ⇒ Range

イベント管理用範囲オブジェクトの生成

Parameters:

  • first (Object) —

    小さい方の境界

  • last (Object) —

    大きい方の境界

  • exclude_end (Boolean) (defaults to: false) —

    大きい方の境界を含まないか？



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# File 'lib/when_exe/events.rb', line 174

def initialize(first, last, exclude_end=false)
  @start = first
  @until = last
  range  = [first, last].map {|edge| edge.respond_to?(:first) ? edge.first : edge}
  rase ArgumentError, "#{range.last} is less than #{range.first}" if range.last < range.first
  super(range.first, range.last, exclude_end)
end

Instance Attribute Details

#start ⇒ Object (readonly)

小さい方の境界

Returns:

  • (Object) 


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# File 'lib/when_exe/events.rb', line 32

def start
  @start
end

#until ⇒ Object (readonly)

大きい方の境界

Returns:

  • (Object) 


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# File 'lib/when_exe/events.rb', line 38

def until
  @until
end

Class Method Details

.convert_from(source) ⇒ When::Events::Range

オブジェクトを When::Events::Range 型に変換する

Parameters:

  • source (Object) —

    変換元のオブジェクト

Returns:



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# File 'lib/when_exe/events.rb', line 46

def self.convert_from(source)
  case
  when source.kind_of?(self)             ; source
  when source.respond_to?(:exclude_end?) ; new(source, source.last, source.exclude_end?)
  when source.respond_to?(:succ)         ; new(source, source.succ, true)
  else raise ArgumentError, "Can't convert #{source} to #{self}"
  end
end

Instance Method Details

#include(target) ⇒ Array<Object>

含む対象の抽出

Parameters:

  • target (Object) —

    判定するオブジェクト

Returns:

  • (Array<Object>) —

    実際に包含した範囲オブジェクトの Array



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# File 'lib/when_exe/events.rb', line 82

def include(target)
  return [] if (exclude_end? && @until <= target) || (!exclude_end? && @until < target)

  case @start
  when ::Range
    return @start.include?(target) ? [@start] : []

  when Array
    list = []
    @start.each do |range|
      break if _range_exceeded?(range, target)
      list << range if _target_included?(range, target)
    end
    return list

  when Enumerator
    begin
      list = []
      while (range = @start.succ)
        break if _range_exceeded?(range, target)
        list << range if _target_included?(range, target)
      end
      return list
    ensure
      @start._rewind
    end
 
  else
    return @start <= target ? [@start] : []
  end
end

#include?(target) ⇒ Boolean

指定オブジェクトが範囲内か？

Parameters:

  • target (Object) —

    判定するオブジェクト

Returns:

  • (Boolean) —

    true - 範囲内のオブジェクトあり, false - 範囲内のオブジェクトなし



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# File 'lib/when_exe/events.rb', line 72

def include?(target)
  !include(target).empty?
end

#is_complex? ⇒ Boolean

範囲の重なりの判断が複雑になるか？

Returns:

  • (Boolean) —

    true - 複雑, false - 単純



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# File 'lib/when_exe/events.rb', line 59

def is_complex?
  case @start
  when Array, Enumerator ; true
  else                   ; false
  end
end

#is_overlaped?(range) ⇒ Boolean

範囲の重なりの判断

Parameters:

  • range (Range) —

    確認対象の単純範囲オブジェクト

Returns:

  • (Boolean) —

    true - 重なる, false - 重ならない



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# File 'lib/when_exe/events.rb', line 121

def is_overlaped?(range)
  !overlaped(range).empty?
end

#overlaped(target) ⇒ Array<Object>

範囲が重なる対象の抽出

Parameters:

  • target (Range) —

    確認対象の単純範囲オブジェクト

Returns:

  • (Array<Object>) —

    実際に重なった範囲オブジェクトの Array



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# File 'lib/when_exe/events.rb', line 132

def overlaped(target)
  first = target.first
  last  = target.last
  last  = last.respond_to?(:prev) ? last.prev : last - Delta if target.exclude_end?
  return [] if (exclude_end? && @until <= first) || (!exclude_end? && @until < first)

  case @start
  when ::Range
    return _target_exceeded?(@start, first) || _range_exceeded?(@start, last) ? [] : [@start]

  when Array
    list = []
    @start.each do |range|
      break if _range_exceeded?(range, last)
      list << range unless _target_exceeded?(range, first)
    end
    return list

  when Enumerator
    begin
      list = []
      while (range = @start.succ)
        break if _range_exceeded?(range, last)
        list << range unless _target_exceeded?(range, first)
      end
      return list
    ensure
      @start._rewind
    end
 
  else
    return @start <= last ? [@start] : []
  end
end