class Racc::ParserClassGenerator
Public Class Methods
new(states)
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# File racc-1.7.3/lib/racc/statetransitiontable.rb, line 263 def initialize(states) @states = states @grammar = states.grammar end
Public Instance Methods
generate()
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# File racc-1.7.3/lib/racc/statetransitiontable.rb, line 268 def generate table = @states.state_transition_table c = Class.new(::Racc::Parser) c.const_set :Racc_arg, [table.action_table, table.action_check, table.action_default, table.action_pointer, table.goto_table, table.goto_check, table.goto_default, table.goto_pointer, table.nt_base, table.reduce_table, table.token_value_table, table.shift_n, table.reduce_n, false] c.const_set :Racc_token_to_s_table, table.token_to_s_table c.const_set :Racc_debug_parser, true define_actions c c end
Private Instance Methods
define_actions(c)
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# File racc-1.7.3/lib/racc/statetransitiontable.rb, line 293 def define_actions(c) c.module_eval "def _reduce_none(vals, vstack) vals[0] end" @grammar.each do |rule| if rule.action.empty? c.alias_method("_reduce_#{rule.ident}", :_reduce_none) else c.define_method("_racc_action_#{rule.ident}", &rule.action.proc) c.module_eval(<<-End, __FILE__, __LINE__ + 1) def _reduce_#{rule.ident}(vals, vstack) _racc_action_#{rule.ident}(*vals) end End end end end