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Module iota::protocol_config

This module provides access to protocol configuration feature flags. Feature flags control the availability of various protocol features and are enabled/disabled at specific protocol versions during epoch changes.

Function is_feature_enabled​

Checks if a specific protocol feature flag is enabled.

Restricted to internal use within the iota-framework package only. If we need to use it in iota-system, we can add friend declarations. We should never need to expose this to user packages.

Arguments​

  • feature_flag_name - The name of the feature flag as bytes (e.g., b"enable_vdf")
  • It is expected to be a valid UTF-8 string
  • The flag should exist in the protocol config

Returns​

  • true if the feature is enabled in the current protocol version
  • false if the feature is disabled

Example (for framework use only)​

use iota::protocol_config;

if (protocol_config::is_feature_enabled(b"enable_accumulators")) {
// Accumulators are available
};
public(package) fun is_feature_enabled(feature_flag_name: vector<u8>): bool
Implementation
public(package) native fun is_feature_enabled(feature_flag_name: vector<u8>): bool;