Class: Treetop::Compiler::GrammarCompiler

Inherits:
Object
  • Object
show all
Defined in:
lib/treetop/compiler/grammar_compiler.rb

Instance Method Summary collapse

Instance Method Details

#compile(source_path, target_path = source_path.gsub(/\.(treetop|tt)\Z/, '.rb')) ⇒ Object 



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# File 'lib/treetop/compiler/grammar_compiler.rb', line 4

def compile(source_path, target_path = source_path.gsub(/\.(treetop|tt)\Z/, '.rb'))
  File.open(target_path, 'w') do |target_file|
    target_file.write(ruby_source(source_path))
  end
end

#ruby_source(source_path) ⇒ Object 



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# File 'lib/treetop/compiler/grammar_compiler.rb', line 10

def ruby_source(source_path)
  File.open(source_path) do |source_file|
    parser = MetagrammarParser.new
    result = parser.parse(source_file.read)
    unless result
      raise RuntimeError.new(parser.failure_reason)
    end
    result.compile
  end
end