Crate financial_types 

Financial Types

Core financial type definitions for trading systems.

This crate provides fundamental enums used across financial applications:

• UnderlyingAssetType — Classification of asset classes (stocks, crypto, forex, etc.)
• Action — Trading actions (buy, sell)
• Side — Position directional exposure (long, short)
• OptionStyle — Option contract style (call, put)

All enums use #[repr(u8)] for compact memory layout and are designed for high-performance financial systems.

Features

• Full serde serialization/deserialization support
• Optional utoipa support for OpenAPI schema generation (enable the utoipa feature)
• #[repr(u8)] on all enums for deterministic layout
• #[must_use] on pure helper methods

Usage

use financial_types::{Action, Side, OptionStyle, UnderlyingAssetType};

let action = Action::Buy;
let side = Side::Long;
let style = OptionStyle::Call;
let asset = UnderlyingAssetType::Stock;

assert_eq!(format!("{action}"), "Buy");
assert_eq!(format!("{side}"), "Long");
assert_eq!(format!("{style}"), "Call");
assert_eq!(format!("{asset}"), "Stock");

assert!(style.is_call());
assert!(side.is_long());
assert!(action.is_buy());

Modules

prelude

Prelude module for convenient imports.

Enums

Action

Represents trading actions in a financial context.

OptionStyle

Specifies the style of an option contract.

Side

Defines the directional exposure of a financial position.

UnderlyingAssetType

Classification of the underlying asset for a financial instrument.