Method: Heist::Runtime::Macro::Matches#expand!

Defined in:
lib/runtime/callable/macro/matches.rb

#expand!(template, depth) ⇒ Object

Takes a template Expression, a repetition depth and a block, and calls the block n times, where n is the number of matches for the pattern variables in the template at the given depth and the current iteration point in the tree. After each block call, the Matches object moves the pointer for all the applicable pattern variables along one place at the given depth – see iterate! and Tree#shift!.



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# File 'lib/runtime/callable/macro/matches.rb', line 123

def expand!(template, depth)
  names = Macro.pattern_vars(template)
  size(names, depth).times { yield() and iterate!(names, depth) }
end