Class: WebTools::Support::Debugger::Frame::Context

Inherits:
Object
  • Object
show all
Defined in:
lib/web_tools/support/debugger.rb

Overview

Emulates the context of a frame execution Defines accessors to the frame locals and sets the instance variables to point to the original object’s values

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(rcv) ⇒ Context

Returns a new instance of Context.



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# File 'lib/web_tools/support/debugger.rb', line 284

def initialize(rcv)
  @receiver = rcv
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args, &block) ⇒ Object 



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# File 'lib/web_tools/support/debugger.rb', line 296

def method_missing(method, *args, &block)
  @receiver.send(method, *args, &block)
end

Class Method Details

.create_for(frame, receiver, context_hash) ⇒ Object

Tries to create a duplicate of the receiver. If that is not possible, creates a new instance of self. In any case, a singleton class is added to define accessors to frame local values



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# File 'lib/web_tools/support/debugger.rb', line 255

def self.create_for(frame, receiver, context_hash)
  rcv = nil
  begin
    rcv = receiver.dup
  rescue Exception
  end
  if receiver === rcv || rcv.nil?
    rcv = self.new(receiver)

    receiver.instance_variables do |name|
      rcv.instance_variable_set(name, receiver.instance_variable_get(name))
    end

    receiver_mod = (receiver.is_a?(Module) ? receiver : receiver.class)
    receiver_mod.constants do |sym|
      rcv.singleton_class.const_set(sym, receiver_mod.const_get(sym))
    end
  end

  context_hash.each do |k,v|
    next if [:"(self)", :"(class)", :"(receiver)"].include? k
    rcv.singleton_class.define_method(:"#{k}") { v }
    rcv.singleton_class.define_method(:"#{k}=") do |v|
      frame.thread.__frame_at_temp_named_put(frame.index, k, v)
    end
  end
  rcv
end

Instance Method Details

#myself ⇒ Object 



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# File 'lib/web_tools/support/debugger.rb', line 288

def myself
  @receiver
end

#respond_to?(method) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/web_tools/support/debugger.rb', line 292

def respond_to?(method)
  @receiver.respond_to? method
end