Class: ConfigToolkit::YAMLWriter::Visitor

Inherits:
HashArrayVisitor show all
Defined in:
lib/configtoolkit/yamlwriter.rb

Overview

This class is used for converting the elements of the structure passed to write to standard YAML types. See the comments for HashArrayVisitor for details on how this visitor works.

As this visitor visits the nodes of a structure, it builds up a parallel structure that is the same as the original except that all elements are of standard YAML types.

Defined Under Namespace

Classes: StackFrame

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from HashArrayVisitor

#leave_array, #leave_hash, #stack_empty?, #stack_top, #visit

Constructor Details

#initialize ⇒ Visitor

Returns a new instance of Visitor.



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# File 'lib/configtoolkit/yamlwriter.rb', line 83

def initialize
  @config_hash = {}
  @next_container = @config_hash

  super()
end

Instance Attribute Details

#config_hash ⇒ Object (readonly)

The structure currently being built.



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# File 'lib/configtoolkit/yamlwriter.rb', line 75

def config_hash
  @config_hash
end

Instance Method Details

#enter_array(array) ⇒ Object 



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# File 'lib/configtoolkit/yamlwriter.rb', line 133

def enter_array(array)
  return StackFrame.new(@next_container)
end

#enter_hash(hash) ⇒ Object 



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# File 'lib/configtoolkit/yamlwriter.rb', line 119

def enter_hash(hash)
  return StackFrame.new(@next_container)
end

#visit_array_element(value, index, is_container) ⇒ Object 



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# File 'lib/configtoolkit/yamlwriter.rb', line 137

def visit_array_element(value, index, is_container)
  converted_value = convert_value(value)

  if(is_container)
    @next_container = converted_value
  end

  stack_top().container.push(converted_value)
end

#visit_hash_element(key, value, index, is_container) ⇒ Object 



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# File 'lib/configtoolkit/yamlwriter.rb', line 123

def visit_hash_element(key, value, index, is_container)
  converted_value = convert_value(value)

  if(is_container)
    @next_container = converted_value
  end

  stack_top().container[key] = converted_value
end