jashkenas--coffeescript/lib/coffeescript/coffeescript.js

// Generated by CoffeeScript 2.0.0-beta3
(function() {
  var Lexer, SourceMap, base64encode, checkShebangLine, compile, formatSourcePosition, getSourceMap, helpers, lexer, packageJson, parser, sourceMaps, sources, withPrettyErrors;

  ({Lexer} = require('./lexer'));

  ({parser} = require('./parser'));

  helpers = require('./helpers');

  SourceMap = require('./sourcemap');

  packageJson = require('../../package.json');

  exports.VERSION = packageJson.version;

  exports.FILE_EXTENSIONS = ['.coffee', '.litcoffee', '.coffee.md'];

  exports.helpers = helpers;

  base64encode = function(src) {
    switch (false) {
      case typeof Buffer !== 'function':
        return Buffer.from(src).toString('base64');
      case typeof btoa !== 'function':
        return btoa(encodeURIComponent(src).replace(/%([0-9A-F]{2})/g, function(match, p1) {
          return String.fromCharCode('0x' + p1);
        }));
      default:
        throw new Error('Unable to base64 encode inline sourcemap.');
    }
  };

  withPrettyErrors = function(fn) {
    return function(code, options = {}) {
      var err;
      try {
        return fn.call(this, code, options);
      } catch (error) {
        err = error;
        if (typeof code !== 'string') {
          throw err;
        }
        throw helpers.updateSyntaxError(err, code, options.filename);
      }
    };
  };

  sources = {};

  sourceMaps = {};

  exports.compile = compile = withPrettyErrors(function(code, options) {
    var currentColumn, currentLine, encoded, extend, filename, fragment, fragments, generateSourceMap, header, i, j, js, len, len1, map, merge, newLines, ref, ref1, sourceMapDataURI, sourceURL, token, tokens, v3SourceMap;
    ({merge, extend} = helpers);
    options = extend({}, options);
    generateSourceMap = options.sourceMap || options.inlineMap || (options.filename == null);
    filename = options.filename || '<anonymous>';
    checkShebangLine(filename, code);
    sources[filename] = code;
    if (generateSourceMap) {
      map = new SourceMap;
    }
    tokens = lexer.tokenize(code, options);
    options.referencedVars = (function() {
      var i, len, results;
      results = [];
      for (i = 0, len = tokens.length; i < len; i++) {
        token = tokens[i];
        if (token[0] === 'IDENTIFIER') {
          results.push(token[1]);
        }
      }
      return results;
    })();
    if (!((options.bare != null) && options.bare === true)) {
      for (i = 0, len = tokens.length; i < len; i++) {
        token = tokens[i];
        if ((ref = token[0]) === 'IMPORT' || ref === 'EXPORT') {
          options.bare = true;
          break;
        }
      }
    }
    fragments = parser.parse(tokens).compileToFragments(options);
    currentLine = 0;
    if (options.header) {
      currentLine += 1;
    }
    if (options.shiftLine) {
      currentLine += 1;
    }
    currentColumn = 0;
    js = "";
    for (j = 0, len1 = fragments.length; j < len1; j++) {
      fragment = fragments[j];
      if (generateSourceMap) {
        if (fragment.locationData && !/^[;\s]*$/.test(fragment.code)) {
          map.add([fragment.locationData.first_line, fragment.locationData.first_column], [currentLine, currentColumn], {
            noReplace: true
          });
        }
        newLines = helpers.count(fragment.code, "\n");
        currentLine += newLines;
        if (newLines) {
          currentColumn = fragment.code.length - (fragment.code.lastIndexOf("\n") + 1);
        } else {
          currentColumn += fragment.code.length;
        }
      }
      js += fragment.code;
    }
    if (options.header) {
      header = `Generated by CoffeeScript ${this.VERSION}`;
      js = `// ${header}\n${js}`;
    }
    if (generateSourceMap) {
      v3SourceMap = map.generate(options, code);
      sourceMaps[filename] = map;
    }
    if (options.inlineMap) {
      encoded = base64encode(JSON.stringify(v3SourceMap));
      sourceMapDataURI = `//# sourceMappingURL=data:application/json;base64,${encoded}`;
      sourceURL = `//# sourceURL=${(ref1 = options.filename) != null ? ref1 : 'coffeescript'}`;
      js = `${js}\n${sourceMapDataURI}\n${sourceURL}`;
    }
    if (options.sourceMap) {
      return {
        js,
        sourceMap: map,
        v3SourceMap: JSON.stringify(v3SourceMap, null, 2)
      };
    } else {
      return js;
    }
  });

  exports.tokens = withPrettyErrors(function(code, options) {
    return lexer.tokenize(code, options);
  });

  exports.nodes = withPrettyErrors(function(source, options) {
    if (typeof source === 'string') {
      return parser.parse(lexer.tokenize(source, options));
    } else {
      return parser.parse(source);
    }
  });

  exports.run = exports.eval = exports.register = function() {
    throw new Error('require index.coffee, not this file');
  };

  lexer = new Lexer;

  parser.lexer = {
    lex: function() {
      var tag, token;
      token = parser.tokens[this.pos++];
      if (token) {
        [tag, this.yytext, this.yylloc] = token;
        parser.errorToken = token.origin || token;
        this.yylineno = this.yylloc.first_line;
      } else {
        tag = '';
      }
      return tag;
    },
    setInput: function(tokens) {
      parser.tokens = tokens;
      return this.pos = 0;
    },
    upcomingInput: function() {
      return "";
    }
  };

  parser.yy = require('./nodes');

  parser.yy.parseError = function(message, {token}) {
    var errorLoc, errorTag, errorText, errorToken, tokens;
    ({errorToken, tokens} = parser);
    [errorTag, errorText, errorLoc] = errorToken;
    errorText = (function() {
      switch (false) {
        case errorToken !== tokens[tokens.length - 1]:
          return 'end of input';
        case errorTag !== 'INDENT' && errorTag !== 'OUTDENT':
          return 'indentation';
        case errorTag !== 'IDENTIFIER' && errorTag !== 'NUMBER' && errorTag !== 'INFINITY' && errorTag !== 'STRING' && errorTag !== 'STRING_START' && errorTag !== 'REGEX' && errorTag !== 'REGEX_START':
          return errorTag.replace(/_START$/, '').toLowerCase();
        default:
          return helpers.nameWhitespaceCharacter(errorText);
      }
    })();
    return helpers.throwSyntaxError(`unexpected ${errorText}`, errorLoc);
  };

  formatSourcePosition = function(frame, getSourceMapping) {
    var as, column, fileLocation, filename, functionName, isConstructor, isMethodCall, line, methodName, source, tp, typeName;
    filename = void 0;
    fileLocation = '';
    if (frame.isNative()) {
      fileLocation = "native";
    } else {
      if (frame.isEval()) {
        filename = frame.getScriptNameOrSourceURL();
        if (!filename) {
          fileLocation = `${frame.getEvalOrigin()}, `;
        }
      } else {
        filename = frame.getFileName();
      }
      filename || (filename = "<anonymous>");
      line = frame.getLineNumber();
      column = frame.getColumnNumber();
      source = getSourceMapping(filename, line, column);
      fileLocation = source ? `${filename}:${source[0]}:${source[1]}` : `${filename}:${line}:${column}`;
    }
    functionName = frame.getFunctionName();
    isConstructor = frame.isConstructor();
    isMethodCall = !(frame.isToplevel() || isConstructor);
    if (isMethodCall) {
      methodName = frame.getMethodName();
      typeName = frame.getTypeName();
      if (functionName) {
        tp = as = '';
        if (typeName && functionName.indexOf(typeName)) {
          tp = `${typeName}.`;
        }
        if (methodName && functionName.indexOf(`.${methodName}`) !== functionName.length - methodName.length - 1) {
          as = ` [as ${methodName}]`;
        }
        return `${tp}${functionName}${as} (${fileLocation})`;
      } else {
        return `${typeName}.${methodName || '<anonymous>'} (${fileLocation})`;
      }
    } else if (isConstructor) {
      return `new ${functionName || '<anonymous>'} (${fileLocation})`;
    } else if (functionName) {
      return `${functionName} (${fileLocation})`;
    } else {
      return fileLocation;
    }
  };

  getSourceMap = function(filename) {
    var answer;
    if (sourceMaps[filename] != null) {
      return sourceMaps[filename];
    } else if (sourceMaps['<anonymous>'] != null) {
      return sourceMaps['<anonymous>'];
    } else if (sources[filename] != null) {
      answer = compile(sources[filename], {
        filename: filename,
        sourceMap: true,
        literate: helpers.isLiterate(filename)
      });
      return answer.sourceMap;
    } else {
      return null;
    }
  };

  Error.prepareStackTrace = function(err, stack) {
    var frame, frames, getSourceMapping;
    getSourceMapping = function(filename, line, column) {
      var answer, sourceMap;
      sourceMap = getSourceMap(filename);
      if (sourceMap != null) {
        answer = sourceMap.sourceLocation([line - 1, column - 1]);
      }
      if (answer != null) {
        return [answer[0] + 1, answer[1] + 1];
      } else {
        return null;
      }
    };
    frames = (function() {
      var i, len, results;
      results = [];
      for (i = 0, len = stack.length; i < len; i++) {
        frame = stack[i];
        if (frame.getFunction() === exports.run) {
          break;
        }
        results.push(`    at ${formatSourcePosition(frame, getSourceMapping)}`);
      }
      return results;
    })();
    return `${err.toString()}\n${frames.join('\n')}\n`;
  };

  checkShebangLine = function(file, input) {
    var args, firstLine, ref, rest;
    firstLine = input.split(/$/m)[0];
    rest = firstLine != null ? firstLine.match(/^#!\s*([^\s]+\s*)(.*)/) : void 0;
    args = rest != null ? (ref = rest[2]) != null ? ref.split(/\s/).filter(function(s) {
      return s !== '';
    }) : void 0 : void 0;
    if ((args != null ? args.length : void 0) > 1) {
      console.error('The script to be run begins with a shebang line with more than one\nargument. This script will fail on platforms such as Linux which only\nallow a single argument.');
      console.error(`The shebang line was: '${firstLine}' in file '${file}'`);
      return console.error(`The arguments were: ${JSON.stringify(args)}`);
    }
  };

}).call(this);