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node_modules/graphql-tools/dist/transforms/ExtractField.js

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+var __assign = (this && this.__assign) || function () {
+    __assign = Object.assign || function(t) {
+        for (var s, i = 1, n = arguments.length; i < n; i++) {
+            s = arguments[i];
+            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
+                t[p] = s[p];
+        }
+        return t;
+    };
+    return __assign.apply(this, arguments);
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+var graphql_1 = require("graphql");
+var ExtractField = /** @class */ (function () {
+    function ExtractField(_a) {
+        var from = _a.from, to = _a.to;
+        this.from = from;
+        this.to = to;
+    }
+    ExtractField.prototype.transformRequest = function (originalRequest) {
+        var _a, _b;
+        var fromSelection;
+        var ourPathFrom = JSON.stringify(this.from);
+        var ourPathTo = JSON.stringify(this.to);
+        var fieldPath = [];
+        graphql_1.visit(originalRequest.document, (_a = {},
+            _a[graphql_1.Kind.FIELD] = {
+                enter: function (node) {
+                    fieldPath.push(node.name.value);
+                    if (ourPathFrom === JSON.stringify(fieldPath)) {
+                        fromSelection = node.selectionSet;
+                        return graphql_1.BREAK;
+                    }
+                },
+                leave: function (node) {
+                    fieldPath.pop();
+                },
+            },
+            _a));
+        fieldPath = [];
+        var newDocument = graphql_1.visit(originalRequest.document, (_b = {},
+            _b[graphql_1.Kind.FIELD] = {
+                enter: function (node) {
+                    fieldPath.push(node.name.value);
+                    if (ourPathTo === JSON.stringify(fieldPath) && fromSelection) {
+                        return __assign(__assign({}, node), { selectionSet: fromSelection });
+                    }
+                },
+                leave: function (node) {
+                    fieldPath.pop();
+                },
+            },
+            _b));
+        return __assign(__assign({}, originalRequest), { document: newDocument });
+    };
+    return ExtractField;
+}());
+exports.default = ExtractField;
+//# sourceMappingURL=ExtractField.js.map