method

instance_exec

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

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What's this?

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v2.3.8) is shown here.

instance_exec(*args, &block) public

Evaluate the block with the given arguments within the context of this object, so self is set to the method receiver.

From Mauricio’s http://eigenclass.org/hiki/bounded+space+instance_exec

Show source

# File activesupport/lib/active_support/core_ext/object/extending.rb, line 63
    def instance_exec(*args, &block)
      begin
        old_critical, Thread.critical = Thread.critical, true
        n = 0
        n += 1 while respond_to?(method_name = "__instance_exec#{n}")
        InstanceExecMethods.module_eval { define_method(method_name, &block) }
      ensure
        Thread.critical = old_critical
      end

      begin
        send(method_name, *args)
      ensure
        InstanceExecMethods.module_eval { remove_method(method_name) } rescue nil
      end
    end

instance_exec

Related methods

Method deprecated or moved

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