Class: Protobuf::Field::FieldHash

Inherits:
Hash
  • Object
show all
Defined in:
lib/protobuf/field/field_hash.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(field) ⇒ FieldHash

Constructor


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# File 'lib/protobuf/field/field_hash.rb', line 15

def initialize(field)
  @field = field
  @key_field = field.type_class.get_field(:key)
  @value_field = field.type_class.get_field(:value)
end

Instance Attribute Details

#field ⇒ Object (readonly)

Attributes


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# File 'lib/protobuf/field/field_hash.rb', line 9

def field
  @field
end

#key_field ⇒ Object (readonly)

Attributes


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# File 'lib/protobuf/field/field_hash.rb', line 9

def key_field
  @key_field
end

#value_field ⇒ Object (readonly)

Attributes


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# File 'lib/protobuf/field/field_hash.rb', line 9

def value_field
  @value_field
end

Instance Method Details

#[]=(key, val) ⇒ Object Also known as: store

Public Instance Methods


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# File 'lib/protobuf/field/field_hash.rb', line 25

def []=(key, val)
  super(normalize_key(key), normalize_val(val))
end

#merge!(other) ⇒ Object Also known as: update 


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# File 'lib/protobuf/field/field_hash.rb', line 37

def merge!(other)
  raise_type_error(other) unless other.is_a?(Hash)
  # keys and values will be normalized by []= above
  other.each { |k, v| self[k] = v }
end

#replace(val) ⇒ Object 


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# File 'lib/protobuf/field/field_hash.rb', line 31

def replace(val)
  raise_type_error(val) unless val.is_a?(Hash)
  clear
  update(val)
end

#to_hash_value ⇒ Object

Return a hash-representation of the given values for this field type. The value in this case would be the hash itself, right? Unfortunately not because the values of the map could be messages themselves that we need to transform.


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# File 'lib/protobuf/field/field_hash.rb', line 49

def to_hash_value
  each_with_object({}) do |(key, value), hash|
    hash[key] = value.respond_to?(:to_hash_value) ? value.to_hash_value : value
  end
end

#to_json_hash_value ⇒ Object

Return a hash-representation of the given values for this field type that is safe to convert to JSON.

The value in this case would be the hash itself, right? Unfortunately not because the values of the map could be messages themselves that we need to transform.


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# File 'lib/protobuf/field/field_hash.rb', line 61

def to_json_hash_value
  if field.respond_to?(:json_encode)
    each_with_object({}) do |(key, value), hash|
      hash[key] = field.json_encode(value)
    end
  else
    each_with_object({}) do |(key, value), hash|
      hash[key] = value.respond_to?(:to_json_hash_value) ? value.to_json_hash_value : value
    end
  end
end

#to_s ⇒ Object 


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# File 'lib/protobuf/field/field_hash.rb', line 73

def to_s
  "{#{field.name}}"
end