Class: Aws::Cfn::Dsl::Base

Inherits:
Aws::Cfn::DeCompiler::Base
  • Object
show all
Defined in:
lib/aws/cfn/dsl/base.rb

Direct Known Subclasses

Main

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Base

Returns a new instance of Base.



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# File 'lib/aws/cfn/dsl/base.rb', line 9

def initialize
  @output = []
end

Instance Method Details

#pprint(val) ⇒ Object 



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# File 'lib/aws/cfn/dsl/base.rb', line 55

def pprint(val)
  case detect_type(val)
    when :template
      pprint_cfn_template(val)
    when :parameter
      pprint_cfn_section 'parameter', 'TODO', val, 'Parameters'
    when :resource
      pprint_cfn_resource 'TODO', val
    when :parameters
      val.each { |k, v| pprint_cfn_section 'parameter', k, v, 'Parameters' }
    when :resources
      val.each { |k, v| pprint_cfn_resource k, v }
    else
      pprint_value(val, '')
  end
end

#simplify(val) ⇒ Object 



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# File 'lib/aws/cfn/dsl/base.rb', line 13

def simplify(val)
  if val.is_a?(Hash)
    val = Hash[val.map { |k,v| [k, simplify(v)] }]
    if val.length != 1
      val
    else
      k, v = val.entries[0]
      case
        # CloudFormation functions
        # when k == 'Fn::Base64'
        #   FnCall.new 'base64', [v], true
        # when k == 'Fn::FindInMap'
        #   FnCall.new 'find_in_map', v
        # when k == 'Fn::GetAtt'
        #   FnCall.new 'get_att', v
        # when k == 'Fn::GetAZs'
        #   FnCall.new 'get_azs', v != '' ? [v] : []
        # when k == 'Fn::Join'
        #   FnCall.new 'join', [v[0]] + v[1], true
        # when k == 'Fn::Select'
        #   FnCall.new 'select', v
        # when k == 'Ref' && v == 'AWS::Region'
        #   FnCall.new 'aws_region', []
        # when k == 'Ref' && v == 'AWS::StackName'
        #   FnCall.new 'aws_stack_name', []
        # CloudFormation internal references
        # when k == 'Ref'
        #   FnCall.new 'ref', [v]
        # Aws::Cfn::DSL functions
        when k.match(%r'^Aws::Cfn::DSL')
          FnCall.new k, [v]
        else
          val
      end
    end
  elsif val.is_a?(Array)
    val.map { |v| simplify(v) }
  else
    val
  end
end