Class: ActiveMutator::Inserter

Inherits:
Object
  • Object
show all
Defined in:
lib/active_mutator/inserter.rb

Overview

Redefines the subject's method with its mutated source. class_eval of a def handles instance methods; a def self.x source string defines the singleton method the same way. An sclass subject's source is a plain def foo that must land on the constant's singleton class, so we route it through .singleton_class.class_eval. Top-level subjects eval at main scope.

Instance Method Summary collapse

Instance Method Details

#insert(mutation) ⇒ Object 



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# File 'lib/active_mutator/inserter.rb', line 8

def insert(mutation)
  subject = mutation.subject
  if subject.constant_scope
    target = Object.const_get(subject.constant_scope)
    target = target.singleton_class if subject.sclass
    target.class_eval(mutation.mutated_def_source, subject.file, mutation.mutated_def_line)
  else
    eval(mutation.mutated_def_source, TOPLEVEL_BINDING, # rubocop:disable Security/Eval
         subject.file, mutation.mutated_def_line)
  end
  nil
end