Class: Mutineer::Mutators::Base

Inherits:

Prism::Visitor

• Object
• Prism::Visitor
• Mutineer::Mutators::Base

Defined in:

lib/mutineer/mutators/base.rb

Overview

Base Prism visitor for operators.

Subclasses override visit_* methods to push Mutation objects onto @mutations. Visiting only def_node.body is the body-only enforcement: the def signature line is never touched.

ponytail: one implementor in M1; Base earns its keep at M4 when comparison/boolean operators land and share this contract.

Direct Known Subclasses

Arithmetic, BooleanConnector, BooleanLiteral, CollectionMethod, Comparison, ConditionNegation, LiteralMutation, RegexLiteral, ReturnNil, StatementRemoval, StringLiteral

Instance Method Summary

• #mutations_for(subject, source) ⇒ Array<Mutineer::Mutation>

  Walks the subject body and collects mutations.

Instance Method Details

#mutations_for(subject, source) ⇒ Array<Mutineer::Mutation>

Walks the subject body and collects mutations.

Parameters:

• subject (Mutineer::Subject) —

  subject whose body is visited.

• source (String) —

  full source text for byte-based slicing.

Returns:

• (Array<Mutineer::Mutation>) —

  collected mutations.

# File 'lib/mutineer/mutators/base.rb', line 23

def mutations_for(subject, source)
  @source = source
  @mutations = []
  subject.def_node.body&.accept(self)
  @mutations
end