@forge/bridge

Index: package/out/featureFlags/evaluator.js
===================================================================
--- package/out/featureFlags/evaluator.js
+++ package/out/featureFlags/evaluator.js
@@ -0,0 +1,53 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Evaluator = void 0;
+class Evaluator {
+    constructor(results) {
+        this.results = results;
+    }
+    checkFlag(flagName, defaultValue) {
+        if (!this.results || !this.results.feature_flags) {
+            return defaultValue;
+        }
+        const featureFlags = this.results.feature_flags;
+        let hashedValue = '';
+        try {
+            hashedValue = this.getHashedValue(flagName);
+        }
+        catch (err) {
+            console.error('Unexpected error occurred while evaluating flag ', err);
+            return defaultValue;
+        }
+        if (!hashedValue) {
+            return defaultValue;
+        }
+        const evaluatedFlag = featureFlags[hashedValue];
+        if (evaluatedFlag) {
+            if (evaluatedFlag.disabled) {
+                return false;
+            }
+            return evaluatedFlag.value;
+        }
+        return defaultValue;
+    }
+    shutDown() {
+        this.results = undefined;
+    }
+    getHashedValue(flagName) {
+        if (typeof flagName !== 'string') {
+            return '';
+        }
+        const input = flagName.trim();
+        if (input.length === 0) {
+            return '';
+        }
+        let hash = 5381;
+        for (let i = 0; i < input.length; i += 1) {
+            const charCode = input.charCodeAt(i);
+            hash = (hash << 5) + hash + charCode;
+            hash |= 0;
+        }
+        return (hash >>> 0).toString();
+    }
+}
+exports.Evaluator = Evaluator;