Class: Ryan::Condition

Inherits:
Object
  • Object
show all
Defined in:
lib/ryan/condition.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(sexp) ⇒ Condition

Returns a new instance of Condition.



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# File 'lib/ryan/condition.rb', line 8

def initialize(sexp)
  @sexp = sexp
  @nested_conditions = create_nested_conditions
  @parts = load_parts
end

Instance Attribute Details

#nested_conditions ⇒ Object (readonly)

Returns the value of attribute nested_conditions.



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# File 'lib/ryan/condition.rb', line 6

def nested_conditions
  @nested_conditions
end

#parts ⇒ Object (readonly)

Returns the value of attribute parts.



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# File 'lib/ryan/condition.rb', line 6

def parts
  @parts
end

#sexp ⇒ Object (readonly)

Returns the value of attribute sexp.



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# File 'lib/ryan/condition.rb', line 6

def sexp
  @sexp
end

Instance Method Details

#create_nested_conditions ⇒ Object 



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# File 'lib/ryan/condition.rb', line 89

def create_nested_conditions
  nc = Set.new
  s = sexp.drop(1)
  sexp = s
  sexp = Sexp.new(s) unless s.respond_to?(:deep_each)
  s.flatten.include?(:if) && sexp.deep_each do |exp|
    Ryan::SexpDecorator.new(exp).each_sexp_condition do |node|
      nc << self.class.new(node)
    end
  end
  nc.to_a
end

#edit_return_text(txt) ⇒ Object

Private



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# File 'lib/ryan/condition.rb', line 60

def edit_return_text(txt)
  txt = txt.to_s
  txt = txt.sub /^return\b/, 'returns'
  txt = txt.sub /^returns\s*$/, 'returns nil'
  if txt.include?(' = ')
    txt = "assigns #{txt}"
  elsif !txt.empty? and txt !~ /^return/
    txt = "returns #{txt.strip}"
  end
  txt.strip
end

#edit_statement(txt) ⇒ Object 



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# File 'lib/ryan/condition.rb', line 72

def edit_statement(txt)
  txt = txt[/(.+)\n?/, 1] # take first line
  txt.prepend 'unless ' if sexp[2].nil? # this is an unless statement
  txt
end

#else_sexp ⇒ Object 



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# File 'lib/ryan/condition.rb', line 44

def else_sexp
  if sexp.compact[3].nil?
    nil
  elsif sexp[3].first == :block
    sexp[3].last
  elsif sexp[3].first == :if
    nil
  else
    sexp[3]
  end
end

#else_text ⇒ Object 



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# File 'lib/ryan/condition.rb', line 26

def else_text
  edit_return_text Ruby2Ruby.new.process(else_sexp.deep_clone)
end

#eql?(other) ⇒ Boolean

Set comparison operators

Returns:

  • (Boolean) 


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# File 'lib/ryan/condition.rb', line 106

def eql?(other)
  hash == other.hash
end

#full_statement ⇒ Object 



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# File 'lib/ryan/condition.rb', line 14

def full_statement
  @full_statement ||= Ruby2Ruby.new.process(sexp.deep_clone)
end

#hash ⇒ Object 



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# File 'lib/ryan/condition.rb', line 110

def hash
  sexp.object_id
end

#if_sexp ⇒ Object 



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# File 'lib/ryan/condition.rb', line 30

def if_sexp
  if sexp[2].nil?
    sexp.last
  elsif sexp[2].first == :if
    nil
  elsif sexp[2].first == :block
    sexp[2].last
  elsif sexp[2].first == :rescue
    sexp[2][1].last
  else
    sexp[2]
  end
end

#if_text ⇒ Object 



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# File 'lib/ryan/condition.rb', line 22

def if_text
  edit_return_text Ruby2Ruby.new.process(if_sexp.deep_clone)
end

#load_parts ⇒ Object 



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# File 'lib/ryan/condition.rb', line 79

def load_parts
  condition_parts = Set.new
  sexp.each_sexp do |s|
    if s.first == :if
      condition_parts << self.class.new(s)
    end
  end
  condition_parts.to_a
end

#statement ⇒ Object 



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# File 'lib/ryan/condition.rb', line 18

def statement
  edit_statement Ruby2Ruby.new.process(sexp[1].deep_clone)
end