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Class: Psych::Visitors::RestrictedYAMLTree

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, YAMLTree, Visitor
Instance Chain:
self, YAMLTree, Visitor
Inherits: Psych::Visitors::YAMLTree
Defined in: ext/psych/lib/psych/visitors/yaml_tree.rb

Constant Summary

Class Method Summary

YAMLTree - Inherited

.create, .new

Visitor - Inherited

.dispatch_cache

Instance Attribute Summary

YAMLTree - Inherited

#finished?

Alias for YAMLTree#finished.
#started?

Alias for YAMLTree#started.

Instance Method Summary

YAMLTree - Inherited

#<<

Alias for YAMLTree#push.
#accept, #finish, #finished, #push, #start, #started, #tree, #visit_Array, #visit_BasicObject, #visit_BigDecimal, #visit_Class, #visit_Complex, #visit_Date, #visit_DateTime,
#visit_Delegator

Alias for YAMLTree#visit_Object.
#visit_Encoding, #visit_Enumerator, #visit_Exception,
#visit_FalseClass

Alias for YAMLTree#visit_Integer.
#visit_Float, #visit_Hash, #visit_Integer, #visit_Module, #visit_NameError, #visit_NilClass, #visit_Object, #visit_Psych_Omap, #visit_Psych_Set, #visit_Range, #visit_Rational, #visit_Regexp, #visit_String, #visit_Struct, #visit_Symbol, #visit_Time,
#visit_TrueClass

Alias for YAMLTree#visit_Integer.
#binary?, #dump_coder, #dump_exception, #dump_ivars, #dump_list, #emit_coder, #format_time, #register, #visit_array_subclass, #visit_hash_subclass

Visitor - Inherited

#accept, #dispatch, #visit

Constructor Details

.new(emitter, ss, options) ⇒ RestrictedYAMLTree

[ GitHub ] 

  


# File 'ext/psych/lib/psych/visitors/yaml_tree.rb', line 553



def initialize emitter, ss, options
  super
  @permitted_classes = DEFAULT_PERMITTED_CLASSES.dup
  Array(options[:permitted_classes]).each do |klass|
    @permitted_classes[klass] = true
  end
  @permitted_symbols = {}.compare_by_identity
  Array(options[:permitted_symbols]).each do |symbol|
    @permitted_symbols[symbol] = true
  end
  @aliases = options.fetch(:aliases, false)
end


  







Instance Method Details



  

    #accept(target)  
  

  [ GitHub ]


  

  


# File 'ext/psych/lib/psych/visitors/yaml_tree.rb', line 566



def accept target
  if !@aliases && @st.key?(target)
    raise BadAlias, "Tried to dump an aliased object"
  end

  unless @permitted_classes[target.class]
    raise DisallowedClass.new('dump', target.class.name || target.class.inspect)
  end

  super
end


  








  

    #visit_Symbol(sym)  
  

  [ GitHub ]


  

  


# File 'ext/psych/lib/psych/visitors/yaml_tree.rb', line 578



def visit_Symbol sym
  unless @permitted_symbols[sym]
    raise DisallowedClass.new('dump', "Symbol(#{sym.inspect})")
  end

  super
end