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app_vue/node_modules/@humanwhocodes/object-schema/src/merge-strategy.js

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+/**
+ * @filedescription Merge Strategy
+ */
+
+"use strict";
+
+//-----------------------------------------------------------------------------
+// Class
+//-----------------------------------------------------------------------------
+
+/**
+ * Container class for several different merge strategies.
+ */
+class MergeStrategy {
+
+    /**
+     * Merges two keys by overwriting the first with the second.
+     * @param {*} value1 The value from the first object key. 
+     * @param {*} value2 The value from the second object key.
+     * @returns {*} The second value.
+     */
+    static overwrite(value1, value2) {
+        return value2;
+    }
+
+    /**
+     * Merges two keys by replacing the first with the second only if the
+     * second is defined.
+     * @param {*} value1 The value from the first object key. 
+     * @param {*} value2 The value from the second object key.
+     * @returns {*} The second value if it is defined.
+     */
+    static replace(value1, value2) {
+        if (typeof value2 !== "undefined") {
+            return value2;
+        }
+
+        return value1;
+    }
+
+    /**
+     * Merges two properties by assigning properties from the second to the first.
+     * @param {*} value1 The value from the first object key.
+     * @param {*} value2 The value from the second object key.
+     * @returns {*} A new object containing properties from both value1 and
+     *      value2.
+     */
+    static assign(value1, value2) {
+        return Object.assign({}, value1, value2);
+    }
+}
+
+exports.MergeStrategy = MergeStrategy;