sucrase/dist/sucrase-babylon/tokenizer/state.js

Super-fast alternative to Babel for when you can target modern JS runtimes

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var N = _interopRequireWildcard(require("../types"));

var _location = require("../util/location");

var _context = require("./context");

var _types2 = require("./types");

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }

class State {
  init(options, input) {
    this.strict = options.strictMode === false ? false : options.sourceType === "module";
    this.input = input;
    this.potentialArrowAt = -1;
    this.noArrowAt = [];
    this.noArrowParamsConversionAt = []; // eslint-disable-next-line max-len

    this.inMethod = this.inFunction = this.inParameters = this.maybeInArrowParameters = this.inGenerator = this.inAsync = this.inPropertyName = this.inType = this.inClassProperty = this.noAnonFunctionType = false;
    this.classLevel = 0;
    this.labels = [];
    this.decoratorStack = [[]];
    this.yieldInPossibleArrowParameters = null;
    this.tokens = [];
    this.comments = [];
    this.trailingComments = [];
    this.leadingComments = [];
    this.commentStack = []; // $FlowIgnore

    this.commentPreviousNode = null;
    this.pos = this.lineStart = 0;
    this.curLine = options.startLine;
    this.type = _types2.types.eof;
    this.value = null;
    this.start = this.end = this.pos;
    this.startLoc = this.endLoc = this.curPosition(); // $FlowIgnore

    this.lastTokEndLoc = this.lastTokStartLoc = null;
    this.lastTokStart = this.lastTokEnd = this.pos;
    this.context = [_context.types.braceStatement];
    this.exprAllowed = true;
    this.containsEsc = this.containsOctal = false;
    this.octalPosition = null;
    this.invalidTemplateEscapePosition = null;
    this.exportedIdentifiers = [];
  } // TODO


  curPosition() {
    return new _location.Position(this.curLine, this.pos - this.lineStart);
  }

  clone(skipArrays) {
    const state = new State();
    Object.keys(this).forEach(key => {
      // $FlowIgnore
      let val = this[key];

      if ((!skipArrays || key === "context") && Array.isArray(val)) {
        val = val.slice();
      } // $FlowIgnore


      state[key] = val;
    });
    return state;
  }

}

exports.default = State;