Class: Js2coffee::CoffeeCompiler

Inherits:
Compiler
  • Object
show all
Defined in:
lib/js2coffee/coffee_compiler.rb

Class Method Summary collapse

Methods inherited from Compiler

compile, compile_file, compiler, source, source=

Class Method Details

.watch_file(file) ⇒ Object 



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# File 'lib/js2coffee/coffee_compiler.rb', line 32

def watch_file(file)
  file_path = Pathname(file)
  source_code = file_path.read
  target_file, target_map = Js2coffee::PathHelper.new(file_path).create_target_path!
  # generate js and SourceMap.
  result = compiler.call(wrapper, source_code, bare: false, sourceMap: true,
                         sourceFiles: [file_path.relative_path_from(target_file.dirname).to_s],
                         generatedFile: target_file.relative_path_from(target_file.dirname).to_s
                        )
  target_file.write("#{ENV['JS_SHEBANG']}#{result['code']}
//# sourceMappingURL=#{target_map.relative_path_from(target_file.dirname)}")
  target_map.write(result['sourceMap'])

  puts "==> #{target_file}"
  target_file
rescue ExecJS::RuntimeError
  error_msg = "[#{file_path}]: #{$!.message}"
  `notify-send "#{error_msg}" -t 5000` if system 'which notify-send &>/dev/null'
  puts error_msg
end

.wrapper ⇒ Object 



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# File 'lib/js2coffee/coffee_compiler.rb', line 14

def wrapper
  "(function(script, options) {\n    try {\n  var result;\n  result = CoffeeScript.compile(script, options);\n  return {code: result.js, sourceMap: result.v3SourceMap};\n    } catch (err) {\n  if (err instanceof SyntaxError && err.location) {\n      throw new SyntaxError([options.filename, err.location.first_line + 1, err.location.first_column + 1].join(\":\") + \": \" + err.message)\n  } else {\n      throw err;\n  }\n    }\n})\n"
end