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module Lrama
class Grammar
class ParameterizingRule
class Rhs
attr_accessor :symbols, :user_code, :precedence_sym
def initialize
@symbols = []
@user_code = nil
@precedence_sym = nil
end
def resolve_user_code(bindings)
return unless user_code
var_to_arg = {}
symbols.each do |sym|
resolved_sym = bindings.resolve_symbol(sym)
if resolved_sym != sym
var_to_arg[sym.s_value] = resolved_sym.s_value
end
end
var_to_arg.each do |var, arg|
user_code.references.each do |ref|
if ref.name == var
ref.name = arg
end
end
end
return user_code
end
end
end
end
end
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