Initial commit

node_modules/chevrotain/lib/src/parse/grammar/follow.js

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+"use strict";
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+    return function (d, b) {
+        if (typeof b !== "function" && b !== null)
+            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.buildInProdFollowPrefix = exports.buildBetweenProdsFollowPrefix = exports.computeAllProdsFollows = exports.ResyncFollowsWalker = void 0;
+var rest_1 = require("./rest");
+var first_1 = require("./first");
+var forEach_1 = __importDefault(require("lodash/forEach"));
+var assign_1 = __importDefault(require("lodash/assign"));
+var constants_1 = require("../constants");
+var gast_1 = require("@chevrotain/gast");
+// This ResyncFollowsWalker computes all of the follows required for RESYNC
+// (skipping reference production).
+var ResyncFollowsWalker = /** @class */ (function (_super) {
+    __extends(ResyncFollowsWalker, _super);
+    function ResyncFollowsWalker(topProd) {
+        var _this = _super.call(this) || this;
+        _this.topProd = topProd;
+        _this.follows = {};
+        return _this;
+    }
+    ResyncFollowsWalker.prototype.startWalking = function () {
+        this.walk(this.topProd);
+        return this.follows;
+    };
+    ResyncFollowsWalker.prototype.walkTerminal = function (terminal, currRest, prevRest) {
+        // do nothing! just like in the public sector after 13:00
+    };
+    ResyncFollowsWalker.prototype.walkProdRef = function (refProd, currRest, prevRest) {
+        var followName = buildBetweenProdsFollowPrefix(refProd.referencedRule, refProd.idx) +
+            this.topProd.name;
+        var fullRest = currRest.concat(prevRest);
+        var restProd = new gast_1.Alternative({ definition: fullRest });
+        var t_in_topProd_follows = (0, first_1.first)(restProd);
+        this.follows[followName] = t_in_topProd_follows;
+    };
+    return ResyncFollowsWalker;
+}(rest_1.RestWalker));
+exports.ResyncFollowsWalker = ResyncFollowsWalker;
+function computeAllProdsFollows(topProductions) {
+    var reSyncFollows = {};
+    (0, forEach_1.default)(topProductions, function (topProd) {
+        var currRefsFollow = new ResyncFollowsWalker(topProd).startWalking();
+        (0, assign_1.default)(reSyncFollows, currRefsFollow);
+    });
+    return reSyncFollows;
+}
+exports.computeAllProdsFollows = computeAllProdsFollows;
+function buildBetweenProdsFollowPrefix(inner, occurenceInParent) {
+    return inner.name + occurenceInParent + constants_1.IN;
+}
+exports.buildBetweenProdsFollowPrefix = buildBetweenProdsFollowPrefix;
+function buildInProdFollowPrefix(terminal) {
+    var terminalName = terminal.terminalType.name;
+    return terminalName + terminal.idx + constants_1.IN;
+}
+exports.buildInProdFollowPrefix = buildInProdFollowPrefix;
+//# sourceMappingURL=follow.js.map