Class: ActiveSupport::CodeGenerator::MethodSet

Inherits:
Object
  • Object
show all
Defined in:
activesupport/lib/active_support/code_generator.rb

Constant Summary collapse

METHOD_CACHES =
Hash.new { |h, k| h[k] = Module.new }

Instance Method Summary collapse

Constructor Details

#initialize(namespace) ⇒ MethodSet

Returns a new instance of MethodSet.


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# File 'activesupport/lib/active_support/code_generator.rb', line 8

def initialize(namespace)
  @cache = METHOD_CACHES[namespace]
  @sources = []
  @methods = {}
end

Instance Method Details

#apply(owner, path, line) ⇒ Object


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# File 'activesupport/lib/active_support/code_generator.rb', line 25

def apply(owner, path, line)
  unless @sources.empty?
    @cache.module_eval("# frozen_string_literal: true\n" + @sources.join(";"), path, line)
  end
  @methods.each do |name, as|
    owner.define_method(name, @cache.instance_method(as))
  end
end

#define_cached_method(name, as: name) ⇒ Object


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# File 'activesupport/lib/active_support/code_generator.rb', line 14

def define_cached_method(name, as: name)
  name = name.to_sym
  as = as.to_sym
  @methods.fetch(name) do
    unless @cache.method_defined?(as)
      yield @sources
    end
    @methods[name] = as
  end
end