Class: Foobara::TypeDeclarations::TypedTransformer

Inherits:
Value::Transformer show all
Defined in:
foobara-0.5.8/projects/typesystem/projects/type_declarations/src/typed_transformer.rb

Overview

TODO: this should instead be a processor and have its own possible_errors TODO: does it make sense that this is in this project? Seems to be more generic than TypeDeclarations

Class Attribute Summary collapse

Attributes inherited from Value::Processor

#created_in_namespace, #declaration_data, #parent_declaration_data

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Value::Transformer

create, error_classes, foobara_manifest, #transform

Methods inherited from Value::Processor

#applicable?, #attribute_name, #build_error, default_declaration_data, #dup_processor, error_class, #error_class, error_classes, #error_classes, #error_context, #error_message, #error_path, foobara_manifest, #foobara_manifest, #inspect, instance, #method_missing, #name, new_with_agnostic_args, #possible_errors, #priority, #process_outcome, #process_outcome!, #process_value!, processor_name, #requires_declaration_data?, #requires_parent_declaration_data?, #respond_to_missing?, #runner, symbol, #symbol

Methods included from IsManifestable

#foobara_domain, #foobara_manifest, #foobara_organization, #scoped_clear_caches

Methods included from Concern

foobara_class_methods_module_for, foobara_concern?, included

Constructor Details

#initialize(from: nil, to: nil) ⇒ TypedTransformer

Returns a new instance of TypedTransformer.



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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 87

def initialize(from: nil, to: nil, **)
  super(**)

  if from
    self.from from
  end

  if to
    self.to to
  end

  # we want to force these to be created now in the current namespace if they are declarations
  from_type
  to_type
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Foobara::Value::Processor

Class Attribute Details

.from_type ⇒ Object (readonly)

Returns the value of attribute from_type.



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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 40

def from_type
  @from_type
end

.to_type ⇒ Object (readonly)

Returns the value of attribute to_type.



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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 40

def to_type
  @to_type
end

Class Method Details

.from ⇒ Object 



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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 32

def from(...)
  @from_type = Domain.current.foobara_type_from_declaration(...)
end

.requires_declaration_data? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 24

def requires_declaration_data?
  false
end

.requires_parent_declaration_data? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 28

def requires_parent_declaration_data?
  false
end

.subclass(to: nil, from: nil, &map_proc) ⇒ Object 



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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 7

def subclass(to: nil, from: nil, &map_proc)
  klass = Class.new(self)

  klass.to(to) if to
  klass.from(from) if from

  if map_proc
    if map_proc.arity.zero?
      klass.define_method(:transform) { |_ignored| map_proc.call }
    else
      klass.define_method(:transform, &map_proc)
    end
  end

  klass
end

.to ⇒ Object 



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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 36

def to(...)
  @to_type = Domain.current.foobara_type_from_declaration(...)
end

Instance Method Details

#always_applicable? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 43

def always_applicable?
  true
end

#from ⇒ Object 



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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 79

def from(...)
  @from_type = Domain.current.foobara_type_from_declaration(...)
end

#from_type ⇒ Object 



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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 55

def from_type
  return @from_type if defined?(@from_type)

  @from_type = self.class.from_type || if from_type_declaration
                                         Domain.current.foobara_type_from_declaration(from_type_declaration)
                                       end
end

#from_type_declaration ⇒ Object 



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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 47

def from_type_declaration
  nil
end

#has_from_type? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 75

def has_from_type?
  !!from_type
end

#has_to_type? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 71

def has_to_type?
  !!to_type
end

#process_value(value) ⇒ Object 



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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 103

def process_value(value)
  if has_from_type?
    outcome = Namespace.use from_type.created_in_namespace do
      from_type.process_value(value)
    end

    return outcome unless outcome.success?

    value = outcome.result
  end

  output = transform(value)

  if has_to_type?
    Namespace.use to_type.created_in_namespace do
      to_type.process_value(output)
    end
  else
    Outcome.success(output)
  end
end

#to ⇒ Object 



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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 83

def to(...)
  @to_type = Domain.current.foobara_type_from_declaration(...)
end

#to_type ⇒ Object 



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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 63

def to_type
  return @to_type if defined?(@to_type)

  @to_type = self.class.to_type || if to_type_declaration
                                     Domain.current.foobara_type_from_declaration(to_type_declaration)
                                   end
end

#to_type_declaration ⇒ Object 



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# File 'projects/typesystem/projects/type_declarations/src/typed_transformer.rb', line 51

def to_type_declaration
  nil
end