Class: Scash

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/scash.rb,
lib/scash/version.rb

Constant Summary collapse

VERSION = 
"0.3.2"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(variables = {}, klass = HashWithIndifferentAccess) ⇒ Scash 



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# File 'lib/scash.rb', line 13

def initialize(variables = {}, klass = HashWithIndifferentAccess)
  @klass = klass
  @hash = convert(variables)
  @inverse_hash = convert(variables)
end

Instance Attribute Details

#stack ⇒ Object (readonly)

Returns the value of attribute stack.



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# File 'lib/scash.rb', line 11

def stack
  @stack
end

Instance Method Details

#[](key, inverse = false) ⇒ Object 



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# File 'lib/scash.rb', line 42

def [](key, inverse = false)
  if inverse
    @inverse_hash[key]
  else
    @hash[key]
  end
end

#define_global_variable(key, value) ⇒ Object 



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# File 'lib/scash.rb', line 50

def define_global_variable(key, value)
  define_global_variables key => value
end

#define_global_variables(variables) ⇒ Object 



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# File 'lib/scash.rb', line 54

def define_global_variables(variables)
  @hash.merge! variables
  global_variables.merge! variables
end

#scope(variables) ⇒ Object Also known as: with 



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# File 'lib/scash.rb', line 27

def scope(variables)
  previous_hash = @hash.select{|key|variables.key?(key.to_s) || variables.key?(key.to_sym)}
  previous_inverse_hash = @inverse_hash.select{|key|variables.key?(key.to_s) || variables.key?(key.to_sym)}
  @hash.merge! variables
  @inverse_hash.merge!(variables.reject{|key| @inverse_hash.key?(key)})
  yield
ensure
  variables.keys.each{|key| @hash.delete(key)}
  variables.keys.each{|key| @inverse_hash.delete(key)}
  @inverse_hash.merge!(previous_inverse_hash)
  @hash.merge!(previous_hash)
  @hash.merge!(global_variables)
end

#to_hash ⇒ Object 



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# File 'lib/scash.rb', line 19

def to_hash
  @hash
end

#to_inverse_hash ⇒ Object 



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# File 'lib/scash.rb', line 23

def to_inverse_hash
  @inverse_hash
end