FIN INIT

node_modules/yaml/dist/doc/applyReviver.js

@@ -0,0 +1,57 @@
+'use strict';
+
+/**
+ * Applies the JSON.parse reviver algorithm as defined in the ECMA-262 spec,
+ * in section 24.5.1.1 "Runtime Semantics: InternalizeJSONProperty" of the
+ * 2021 edition: https://tc39.es/ecma262/#sec-json.parse
+ *
+ * Includes extensions for handling Map and Set objects.
+ */
+function applyReviver(reviver, obj, key, val) {
+    if (val && typeof val === 'object') {
+        if (Array.isArray(val)) {
+            for (let i = 0, len = val.length; i < len; ++i) {
+                const v0 = val[i];
+                const v1 = applyReviver(reviver, val, String(i), v0);
+                // eslint-disable-next-line @typescript-eslint/no-array-delete
+                if (v1 === undefined)
+                    delete val[i];
+                else if (v1 !== v0)
+                    val[i] = v1;
+            }
+        }
+        else if (val instanceof Map) {
+            for (const k of Array.from(val.keys())) {
+                const v0 = val.get(k);
+                const v1 = applyReviver(reviver, val, k, v0);
+                if (v1 === undefined)
+                    val.delete(k);
+                else if (v1 !== v0)
+                    val.set(k, v1);
+            }
+        }
+        else if (val instanceof Set) {
+            for (const v0 of Array.from(val)) {
+                const v1 = applyReviver(reviver, val, v0, v0);
+                if (v1 === undefined)
+                    val.delete(v0);
+                else if (v1 !== v0) {
+                    val.delete(v0);
+                    val.add(v1);
+                }
+            }
+        }
+        else {
+            for (const [k, v0] of Object.entries(val)) {
+                const v1 = applyReviver(reviver, val, k, v0);
+                if (v1 === undefined)
+                    delete val[k];
+                else if (v1 !== v0)
+                    val[k] = v1;
+            }
+        }
+    }
+    return reviver.call(obj, key, val);
+}
+
+exports.applyReviver = applyReviver;