Class: OpenStruct
Instance Attribute Summary collapse
Instance Method Summary
collapse
Constructor Details
#initialize(hash = nil) ⇒ OpenStruct
Returns a new instance of OpenStruct.
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# File 'opal/stdlib/ostruct.rb', line 2
def initialize(hash = nil)
@table = {}
if hash
hash.each_pair do |key, value|
@table[new_ostruct_member(key)] = value
end
end
end
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Dynamic Method Handling
This class handles dynamic methods through the method_missing method
#method_missing(name, *args) ⇒ Object
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# File 'opal/stdlib/ostruct.rb', line 20
def method_missing(name, *args)
if args.length > 2
raise NoMethodError.new("undefined method `#{name}' for #<OpenStruct>", name)
end
if name.end_with? '='
if args.length != 1
raise ArgumentError, 'wrong number of arguments (0 for 1)'
end
@table[new_ostruct_member(name[0..-2])] = args[0]
else
@table[name.to_sym]
end
end
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Instance Attribute Details
Returns the value of attribute table.
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# File 'opal/stdlib/ostruct.rb', line 77
def table
@table
end
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Instance Method Details
#==(other) ⇒ Object
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# File 'opal/stdlib/ostruct.rb', line 47
def ==(other)
return false unless other.is_a?(OpenStruct)
@table == other.instance_variable_get(:@table)
end
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#===(other) ⇒ Object
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# File 'opal/stdlib/ostruct.rb', line 53
def ===(other)
return false unless other.is_a?(OpenStruct)
@table === other.instance_variable_get(:@table)
end
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# File 'opal/stdlib/ostruct.rb', line 12
def [](name)
@table[name.to_sym]
end
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#[]=(name, value) ⇒ Object
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# File 'opal/stdlib/ostruct.rb', line 16
def []=(name, value)
@table[new_ostruct_member(name)] = value
end
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#delete_field(name) ⇒ Object
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# File 'opal/stdlib/ostruct.rb', line 79
def delete_field(name)
sym = name.to_sym
begin
singleton_class.__send__(:remove_method, sym, "#{sym}=")
rescue NameError
end
@table.delete sym
end
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#each_pair ⇒ Object
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# File 'opal/stdlib/ostruct.rb', line 39
def each_pair
return enum_for :each_pair unless block_given?
@table.each_pair do |pair|
yield pair
end
end
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#eql?(other) ⇒ Boolean
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# File 'opal/stdlib/ostruct.rb', line 59
def eql?(other)
return false unless other.is_a?(OpenStruct)
@table.eql? other.instance_variable_get(:@table)
end
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# File 'opal/stdlib/ostruct.rb', line 73
def hash
@table.hash
end
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#inspect ⇒ Object
Also known as:
to_s
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# File 'opal/stdlib/ostruct.rb', line 99
def inspect
%x{
var top = (ostruct_ids === undefined),
ostruct_id = #{__id__};
}
begin
result = "#<#{self.class}"
%x{
if (top) {
ostruct_ids = {};
}
if (ostruct_ids.hasOwnProperty(ostruct_id)) {
return result + ' ...>';
}
ostruct_ids[ostruct_id] = true;
}
result += ' ' if @table.any?
result += each_pair.map do |name, value|
"#{name}=#{value.inspect}"
end.join ', '
result += '>'
result
ensure
%x{
if (top) {
ostruct_ids = undefined;
}
}
end
end
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#new_ostruct_member(name) ⇒ Object
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# File 'opal/stdlib/ostruct.rb', line 88
def new_ostruct_member(name)
name = name.to_sym
unless respond_to?(name)
define_singleton_method(name) { @table[name] }
define_singleton_method("#{name}=") { |x| @table[name] = x }
end
name
end
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#respond_to_missing?(mid, include_private = false) ⇒ Boolean
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# File 'opal/stdlib/ostruct.rb', line 34
def respond_to_missing?(mid, include_private = false) mname = mid.to_s.chomp('=').to_sym
@table&.key?(mname) || super
end
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# File 'opal/stdlib/ostruct.rb', line 65
def to_h
@table.dup
end
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# File 'opal/stdlib/ostruct.rb', line 69
def to_n
@table.to_n
end
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