jashkenas--coffeescript/lib/coffee_script/coffee-script.js

(function(){
  var compiler, lexer, parser, path;
  // Set up for both the browser and the server.
  if ((typeof process !== "undefined" && process !== null)) {
    process.mixin(require('./nodes'));
    path = require('path');
    lexer = new (require('./lexer').Lexer)();
    parser = require('./parser').parser;
  } else {
    this.exports = this;
    lexer = new Lexer();
    parser = exports.parser;
  }
  // Thin wrapper for Jison compatibility around the real lexer.
  parser.lexer = {
    lex: function lex() {
      var token;
      token = this.tokens[this.pos] || [""];
      this.pos += 1;
      this.yylineno = token[2];
      this.yytext = token[1];
      return token[0];
    },
    setInput: function setInput(tokens) {
      this.tokens = tokens;
      return this.pos = 0;
    },
    upcomingInput: function upcomingInput() {
      return "";
    },
    showPosition: function showPosition() {
      return this.pos;
    }
  };
  // Improved error messages.
  // parser.parseError: (message, hash) ->
  //   throw new Error 'Unexpected ' + parser.terminals_[hash.token] + ' on line ' + hash.line
  exports.VERSION = '0.5.0';
  // Compile CoffeeScript to JavaScript, using the Coffee/Jison compiler.
  exports.compile = function compile(code, options) {
    return (parser.parse(lexer.tokenize(code))).compile(options);
  };
  // Just the tokens.
  exports.tokenize = function tokenize(code) {
    return lexer.tokenize(code);
  };
  // Just the nodes.
  exports.tree = function tree(code) {
    return parser.parse(lexer.tokenize(code));
  };
  // Pretty-print a token stream.
  exports.print_tokens = function print_tokens(tokens) {
    var _a, _b, _c, strings, token;
    strings = (function() {
      _a = []; _b = tokens;
      for (_c = 0; _c < _b.length; _c++) {
        token = _b[_c];
        _a.push('[' + token[0] + ' ' + token[1].toString().replace(/\n/, '\\n') + ']');
      }
      return _a;
    }).call(this);
    return puts(strings.join(' '));
  };
  //---------- Below this line is obsolete, for the Ruby compiler. ----------------
  // The path to the CoffeeScript executable.
  compiler = function compiler() {
    return path.normalize(path.dirname(__filename) + '/../../bin/coffee');
  };
  // Compile a string over stdin, with global variables, for the REPL.
  exports.ruby_compile = function ruby_compile(code, callback) {
    var coffee, js;
    js = '';
    coffee = process.createChildProcess(compiler(), ['--eval', '--no-wrap', '--globals']);
    coffee.addListener('output', function(results) {
      if ((typeof results !== "undefined" && results !== null)) {
        return js += results;
      }
    });
    coffee.addListener('exit', function() {
      return callback(js);
    });
    coffee.write(code);
    return coffee.close();
  };
  // Compile a list of CoffeeScript files on disk.
  exports.ruby_compile_files = function ruby_compile_files(paths, callback) {
    var coffee, exit_ran, js;
    js = '';
    coffee = process.createChildProcess(compiler(), ['--print'].concat(paths));
    coffee.addListener('output', function(results) {
      if ((typeof results !== "undefined" && results !== null)) {
        return js += results;
      }
    });
    // NB: we have to add a mutex to make sure it doesn't get called twice.
    exit_ran = false;
    coffee.addListener('exit', function() {
      if (exit_ran) {
        return null;
      }
      exit_ran = true;
      return callback(js);
    });
    return coffee.addListener('error', function(message) {
      if (!(message)) {
        return null;
      }
      puts(message);
      throw new Error("CoffeeScript compile error");
    });
  };
})();