Class: Evilution::Mutator::Operator::IfBranchSwap Private

Inherits:
Base
  • Object
show all
Defined in:
lib/evilution/mutator/operator/if_branch_swap.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Replace the if-branch with the else body and drop the else: if c; x; else; y; end becomes if c; y; end.

The condition still runs and still selects, but both of its outcomes change: truthy now yields the else body, falsy now yields nil. That is out of reach of the existing conditional operators — ConditionalNegation pins the predicate to one branch, ConditionalBranch blanks a body to nil — so this survives only when the suite never distinguishes the two branch values from each other.

Instance Attribute Summary

Attributes inherited from Base

#mutations

Instance Method Summary collapse

Methods inherited from Base

#call, clear_parse_cache!, #initialize, operator_name, parsed_tree_for

Constructor Details

This class inherits a constructor from Evilution::Mutator::Base

Instance Method Details

#visit_if_node(node) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



15
16
17
18
 
# File 'lib/evilution/mutator/operator/if_branch_swap.rb', line 15

def visit_if_node(node)
  swap_branches(node)
  super
end