Module capability 

Exchange Capabilities Module

This module provides efficient representation and manipulation of exchange capabilities using bitflags for compact storage (8 bytes instead of 46+ bytes) and type-safe operations.

Design

The capability system uses a hybrid approach:

• Capability enum: Individual capability identifiers for type-safe API
• Capabilities bitflags: Efficient storage and set operations
• ExchangeCapabilities struct: High-level API with backward compatibility

Example

use ccxt_core::capability::{Capability, Capabilities, ExchangeCapabilities};

// Using bitflags directly
let caps = Capabilities::MARKET_DATA | Capabilities::TRADING;
assert!(caps.contains(Capabilities::FETCH_TICKER));

// Using the high-level API
let exchange_caps = ExchangeCapabilities::public_only();
assert!(exchange_caps.has("fetchTicker"));
assert!(!exchange_caps.has("createOrder"));

Structs

Capabilities

Efficient bitflags representation of exchange capabilities

ExchangeCapabilities

Exchange capabilities configuration

ExchangeCapabilitiesBuilder

Builder for ExchangeCapabilities

Enums

Capability

Individual capability identifier

TraitCategory

Trait category for capability-to-trait mapping