Class: NRSER::Types::HashOfType

Inherits:
HashType show all
Defined in:
lib/nrser/types/hashes.rb

Overview

A Hash type with typed keys and/or values.

Instance Attribute Summary collapse

Attributes inherited from IsA

#mod

Instance Method Summary collapse

Methods inherited from IsA

#==, #custom_from_data, #has_from_data?, #init_from_data?

Methods inherited from Type

#===, #builtin_inspect, #check, #check!, #from_data, #from_s, #has_from_data?, #has_to_data?, #inspect, #intersection, #name, #not, #respond_to?, #test, #to_data, #to_s, #union, #xor

Constructor Details

#initialize(keys: NRSER::Types.any, values: NRSER::Types.any, **options) ⇒ HashOfType

Constructor



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# File 'lib/nrser/types/hashes.rb', line 136

def initialize  keys: NRSER::Types.any,
                values: NRSER::Types.any,
                **options
  super **options
  
  @keys = NRSER::Types.make keys
  @values = NRSER::Types.make values
end

Instance Attribute Details

#keys ⇒ NRSER::Types::Type (readonly)

The type of the hash keys.

Returns:



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# File 'lib/nrser/types/hashes.rb', line 123

def keys
  @keys
end

#values ⇒ NRSER::Types::Type (readonly)

The type of the hash values.

Returns:



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# File 'lib/nrser/types/hashes.rb', line 130

def values
  @values
end

Instance Method Details

#explain ⇒ String

Returns:

See Also:



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# File 'lib/nrser/types/hashes.rb', line 176

def explain
  "Hash<#{ keys.explain }, #{ values.explain }>"
end

#has_from_s? ⇒ Boolean

Overridden to check that both the #keys and #values types can load from a string.

Returns:

  • (Boolean)

See Also:



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# File 'lib/nrser/types/hashes.rb', line 154

def has_from_s?
  !@from_s.nil? || [keys, values].all?( &:has_from_s )
end

#test?(value) ⇒ Boolean

Returns:

  • (Boolean)

See Also:



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# File 'lib/nrser/types/hashes.rb', line 163

def test? value
  return false unless super( value )
  
  value.all? { |k, v|
    keys.test( k ) && values.test( v )
  }
end