Function Parser

package/svelte/compiler.js:425–472

(options, input, startPos)

  var BIND_SIMPLE_CATCH = 4;
  var BIND_OUTSIDE = 5;
  var Parser = function Parser2(options, input, startPos) {
    this.options = options = getOptions(options);
    this.sourceFile = options.sourceFile;
    this.keywords = wordsRegexp(keywords[options.ecmaVersion >= 6 ? 6 : options.sourceType === "module" ? "5module" : 5]);
    var reserved2 = "";
    if (options.allowReserved !== true) {
      reserved2 = reservedWords[options.ecmaVersion >= 6 ? 6 : options.ecmaVersion === 5 ? 5 : 3];
      if (options.sourceType === "module") {
        reserved2 += " await";
      }
    }
    this.reservedWords = wordsRegexp(reserved2);
    var reservedStrict = (reserved2 ? reserved2 + " " : "") + reservedWords.strict;
    this.reservedWordsStrict = wordsRegexp(reservedStrict);
    this.reservedWordsStrictBind = wordsRegexp(reservedStrict + " " + reservedWords.strictBind);
    this.input = String(input);
    this.containsEsc = false;
    if (startPos) {
      this.pos = startPos;
      this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1;
      this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length;
    } else {
      this.pos = this.lineStart = 0;
      this.curLine = 1;
    }
    this.type = types.eof;
    this.value = null;
    this.start = this.end = this.pos;
    this.startLoc = this.endLoc = this.curPosition();
    this.lastTokEndLoc = this.lastTokStartLoc = null;
    this.lastTokStart = this.lastTokEnd = this.pos;
    this.context = this.initialContext();
    this.exprAllowed = true;
    this.inModule = options.sourceType === "module";
    this.strict = this.inModule || this.strictDirective(this.pos);
    this.potentialArrowAt = -1;
    this.potentialArrowInForAwait = false;
    this.yieldPos = this.awaitPos = this.awaitIdentPos = 0;
    this.labels = [];
    this.undefinedExports = /* @__PURE__ */ Object.create(null);
    if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === "#!") {
      this.skipLineComment(2);
    }
    this.scopeStack = [];
    this.enterScope(SCOPE_TOP);
    this.regexpState = null;
    this.privateNameStack = [];
  };
  var prototypeAccessors = { inFunction: { configurable: true }, inGenerator: { configurable: true }, inAsync: { configurable: true }, canAwait: { configurable: true }, allowSuper: { configurable: true }, allowDirectSuper: { configurable: true }, treatFunctionsAsVar: { configurable: true }, inNonArrowFunction: { configurable: true } };
  Parser.prototype.parse = function parse() {
    var node2 = this.options.program || this.startNode();