Module: Ibex::Codegen::RubyValuePrinters

Included in:
Ruby
Defined in:
lib/ibex/codegen/ruby_value_printers.rb,
sig/ibex/codegen/ruby_value_printers.rbs

Overview

Emits declarative value-printer tables and methods for Ruby parsers.

Instance Method Summary collapse

Instance Method Details

#append_value_printer(lines, printer) ⇒ void

This method returns an undefined value.

RBS:

  • (Array[String] lines, IR::value_printer printer) -> void

Parameters:

  • lines (Array[String])
  • printer (IR::value_printer) 


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# File 'lib/ibex/codegen/ruby_value_printers.rb', line 35

def append_value_printer(lines, printer)
  symbol = @grammar.symbol(printer[:symbol]) ||
           raise(Ibex::Error, "missing printer symbol #{printer[:symbol]}")
  source_builder = value_printer_action_method_source
  source = source_builder.value_printer_method_source(symbol.id, printer)
  if @line_convert
    location = printer[:loc]
    lines << "  class_eval(#{source.dump}, #{location[:file].inspect}, #{location[:line]})"
  elsif source_builder.column_sensitive?(printer[:code])
    lines << source
  else
    source.lines.each { |line| lines << "  #{line.rstrip}" }
  end
end

#append_value_printer_table(lines, indent) ⇒ void

This method returns an undefined value.

RBS:

  • (Array[String] lines, String indent) -> void

Parameters:

  • lines (Array[String])
  • indent (String) 


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# File 'lib/ibex/codegen/ruby_value_printers.rb', line 15

def append_value_printer_table(lines, indent)
  return if @grammar.value_printers.empty?

  entries = @grammar.value_printers.map do |printer|
    symbol = @grammar.symbol(printer[:symbol]) ||
             raise(Ibex::Error, "missing printer symbol #{printer[:symbol]}")
    "#{symbol.id} => :_ibex_value_printer_#{symbol.id}"
  end
  lines << "#{indent}VALUE_PRINTERS = { #{entries.join(', ')} }.freeze"
end

#append_value_printers(lines) ⇒ void

This method returns an undefined value.

RBS:

  • (Array[String] lines) -> void

Parameters:

  • lines (Array[String]) 


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# File 'lib/ibex/codegen/ruby_value_printers.rb', line 27

def append_value_printers(lines)
  @grammar.value_printers.each do |printer|
    append_value_printer(lines, printer)
    lines << ""
  end
end

#value_printer_action_method_source ⇒ ActionMethodSource

RBS:

  • () -> ActionMethodSource

Returns:



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# File 'lib/ibex/codegen/ruby_value_printers.rb', line 51

def value_printer_action_method_source
  @value_printer_action_method_source ||= ActionMethodSource.new(@grammar)
end