@aws-cdk/core/lib/feature-flags.js

"use strict";
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
exports.FeatureFlags = void 0;
const JSII_RTTI_SYMBOL_1 = Symbol.for("jsii.rtti");
const cxapi = require("@aws-cdk/cx-api");
const constructs_1 = require("constructs");
/**
 * Features that are implemented behind a flag in order to preserve backwards
 * compatibility for existing apps. The list of flags are available in the
 * `@aws-cdk/cx-api` module.
 *
 * The state of the flag for this application is stored as a CDK context variable.
 */
class FeatureFlags {
    constructor(construct) {
        this.construct = construct;
    }
    /**
     * Inspect feature flags on the construct node's context.
     */
    static of(scope) {
        return new FeatureFlags(scope);
    }
    /**
     * Check whether a feature flag is enabled. If configured, the flag is present in
     * the construct node context. Falls back to the defaults defined in the `cx-api`
     * module.
     */
    isEnabled(featureFlag) {
        const context = constructs_1.Node.of(this.construct).tryGetContext(featureFlag);
        if (cxapi.FUTURE_FLAGS_EXPIRED.includes(featureFlag)) {
            if (context !== undefined) {
                throw new Error(`Unsupported feature flag '${featureFlag}'. This flag existed on CDKv1 but has been removed in CDKv2.`
                    + ' CDK will now behave as the same as when the flag is enabled.');
            }
            return true;
        }
        return context ?? cxapi.futureFlagDefault(featureFlag);
    }
}
exports.FeatureFlags = FeatureFlags;
_a = JSII_RTTI_SYMBOL_1;
FeatureFlags[_a] = { fqn: "@aws-cdk/core.FeatureFlags", version: "1.204.0" };
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