Class: Datacaster::Runtimes::StructureCleaner

Inherits:
Base
  • Object
show all
Defined in:
lib/datacaster/runtimes/structure_cleaner.rb

Instance Attribute Summary collapse

Attributes inherited from Base

#reserved_instance_variables

Instance Method Summary collapse

Methods inherited from Base

#Failure, #Success, #after_call!, #before_call!, call, #inspect, #method_missing, not_found!, #respond_to_missing?, send_to_parent, #to_s

Constructor Details

#initialize ⇒ StructureCleaner

Returns a new instance of StructureCleaner.



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# File 'lib/datacaster/runtimes/structure_cleaner.rb', line 6

def initialize(*)
  super
  @ignore = false
  @checked_schema = {}
  @should_check_stack = [false]
  @pointer_stack = [@checked_schema]

  @reserved_instance_variables += instance_variables
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Datacaster::Runtimes::Base

Instance Attribute Details

#checked_schema ⇒ Object

Returns the value of attribute checked_schema.



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# File 'lib/datacaster/runtimes/structure_cleaner.rb', line 4

def checked_schema
  @checked_schema
end

Instance Method Details

#checked_key!(key) ⇒ Object

Array checked schema are the same as hash one, where instead of keys there are array indicies



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# File 'lib/datacaster/runtimes/structure_cleaner.rb', line 18

def checked_key!(key)
  if @ignore
    return yield if block_given?
    return
  end

  @pointer_stack.last[key] ||= {}
  @pointer_stack.push(@pointer_stack.last[key])
  @should_check_stack.push(false)
  result = yield if block_given?
  was_checked = @should_check_stack.pop
  @pointer_stack.pop
  @pointer_stack.last[key] = true unless was_checked
  result
end

#checked_schema!(schema) ⇒ Object

Notify current runtime that some child runtime has built schema, child runtime’s schema is passed as the argument



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# File 'lib/datacaster/runtimes/structure_cleaner.rb', line 45

def checked_schema!(schema)
  # Current runtime has marked its schema as checked unconditionally
  return if @pointer_stack[-1] == true

  # Child runtime marks its schema as checked unconditionally, so
  # current runtime should do as well
  if schema == true
    @pointer_stack[-1] = true
  # Child runtime's schema should be merged with current runtime's schema
  else
    will_check!
    @pointer_stack[-1].merge!(schema)
  end
end

#ignore_checks!(&block) ⇒ Object 



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# File 'lib/datacaster/runtimes/structure_cleaner.rb', line 60

def ignore_checks!(&block)
  @ignore = true
  result = yield
  @ignore = false
  result
end

#unchecked? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/datacaster/runtimes/structure_cleaner.rb', line 67

def unchecked?
  @should_check_stack == [false]
end

#will_check! ⇒ Object 



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# File 'lib/datacaster/runtimes/structure_cleaner.rb', line 34

def will_check!
  return if @ignore
  @should_check_stack[-1] = true
end

#will_not_check! ⇒ Object 



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# File 'lib/datacaster/runtimes/structure_cleaner.rb', line 39

def will_not_check!
  @should_check_stack[-1] = false
end