Function blockScope

ServerEditorWeb/ace/worker-javascript.js:6643–6722

()

  }

  var blockScope = function () {
    var _current = {};
    var _variables = [_current];

    function _checkBlockLabels() {
      for (var t in _current) {
        if (_current[t]["(type)"] === "unused") {
          if (state.option.unused) {
            var tkn = _current[t]["(token)"];
            if (tkn.exported) {
              continue;
            }
            var line = tkn.line;
            var chr  = tkn.character;
            warningAt("W098", line, chr, t);
          }
        }
      }
    }

    return {
      stack: function () {
        _current = {};
        _variables.push(_current);
      },

      unstack: function () {
        _checkBlockLabels();
        _variables.splice(_variables.length - 1, 1);
        _current = _.last(_variables);
      },

      getlabel: function (l) {
        for (var i = _variables.length - 1 ; i >= 0; --i) {
          if (_.has(_variables[i], l) && !_variables[i][l]["(shadowed)"]) {
            return _variables[i];
          }
        }
      },

      shadow: function (name) {
        for (var i = _variables.length - 1; i >= 0; i--) {
          if (_.has(_variables[i], name)) {
            _variables[i][name]["(shadowed)"] = true;
          }
        }
      },

      unshadow: function (name) {
        for (var i = _variables.length - 1; i >= 0; i--) {
          if (_.has(_variables[i], name)) {
            _variables[i][name]["(shadowed)"] = false;
          }
        }
      },

      atTop: function () {
        return _variables.length === 1;