txt: ## dist_github-gfldex-Operator-DynvarOr.md
  # Operator::DynvarOr
  
  [![Build Status](https://travis-ci.org/gfldex/raku-operator-dynvaror.svg?branch=master)](https://travis-ci.org/gfldex/raku-operator-dynvaror)
  
  ## SYNOPSIS
  
  ```
  use Operator::DynvarOr;
  
  sub s {
      my $*dynvar //* 42;
  }
  
  s;
  
  ```
  
  This module supplies the infix operator `//*` that expects its LHS to be a
  dynvar and its RHS a value. It scans the call stack for a dynvar of the same
  name and sets the LHS to its value. If the dynvar is not declared in any
  caller it will assign the RHS to the LHS. This allows optional dynvars to
  contain undefined values which is otherwise difficult to achieve.
  
  ## LICENSE
  
  All files (unless noted otherwise) can be used, modified and redistributed
  under the terms of the Artistic License Version 2. Examples (in the
  documentation, in tests or distributed as separate files) can be considered
  public domain.
  
  ⓒ2020 Wenzel P. P. Peppmeyer
  