method

new

Ruby on Rails latest stable (v6.1.7.7) - 0 notes - Class: ActiveSupport::OrderedHash

1.0.0
1.1.6
1.2.6
2.0.3
2.1.0
2.2.1
2.3.8 (0)
3.0.0 (38)
3.0.9 (-1)
3.1.0 (0)
3.2.1 (0)
3.2.8 (0)
3.2.13 (0)
4.0.2
4.1.8
4.2.1
4.2.7
4.2.9
5.0.0.1
5.1.7
5.2.3
6.0.0
6.1.3.1
6.1.7.7
7.0.0
7.1.3.2
What's this?

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v3.2.13) is shown here.

These similar methods exist in v6.1.7.7:

new(*args, &block) public

In MRI the Hash class is core and written in C. In particular, methods are programmed with explicit C function calls and polymorphism is not honored.

For example, []= is crucial in this implementation to maintain the @keys array but hash.c invokes rb_hash_aset() originally. This prevents method reuse through inheritance and forces us to reimplement stuff.

For instance, we cannot use the inherited #merge! because albeit the algorithm itself would work, our []= is not being called at all by the C code.

Show source

# File activesupport/lib/active_support/ordered_hash.rb, line 68
      def initialize(*args, &block)
        super
        @keys = []
      end

new

Related methods

Method deprecated or moved

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