JezK
Edit File: predicate_block.rb
module Treetop module Compiler class PredicateBlock < ParsingExpression def compile(index, builder, parent_expression = nil) super # REVISIT: This is distinctly dodgey, but since we can only be called from # two contexts, and it works in both those, I'm going with it for now, as # opposed to doing the major refactor of providing a proper way of accessing # the parent's accumulator variable. p = parent p = p.parent while p && !p.respond_to?(:accumulator_var) assign_result "lambda #{text_value}.call(#{p ? p.accumulator_var : ""})" builder.if_ '!'+result_var do builder << "terminal_parse_failure(#{expected})" end end def expected '"<semantic predicate>"' # Should I include (some of) the text_value here? end end end end