Method getUsedName

lib/ExportsInfo.js:1484–1510

* Returns used name. May return InlinedUsedName when the export is inlined to a primitive. * @param {string | undefined} fallbackName fallback name for used exports with no name * @param {RuntimeSpec} runtime check usage for this runtime only * @returns {string | InlinedUsedName | false} used

(fallbackName, runtime)

	 * @returns {string | InlinedUsedName | false} used name
	 */
	getUsedName(fallbackName, runtime) {
		if (this._hasUseInRuntimeInfo) {
			if (this._globalUsed !== undefined) {
				if (this._globalUsed === UsageState.Unused) return false;
			} else {
				if (this._usedInRuntime === undefined) return false;
				if (typeof runtime === "string") {
					if (!this._usedInRuntime.has(runtime)) {
						return false;
					}
				} else if (runtime !== undefined) {
					// Unused unless at least one runtime in the set is used; loop avoids
					// allocating an array from the runtime set on this hot path.
					let anyUsed = false;
					for (const r of runtime) {
						if (this._usedInRuntime.has(r)) {
							anyUsed = true;
							break;
						}
					}
					if (!anyUsed) return false;
				}
			}
		}
		if (this._usedName !== null) return this._usedName;
		return /** @type {string | false} */ (this.name || fallbackName);
	}

	/**
	 * Checks whether this export info has used name.