Procedural macros for defining HyperStack streams.

This crate provides the #[hyperstack] attribute macro that transforms annotated Rust structs into full streaming pipeline specifications, including:

• State struct generation with field accessors
• Handler creation functions for event processing
• IDL/Proto parser integration for Solana programs
• Automatic AST serialization for deployment

[dependencies]
hyperstack-macros = "0.2"

use hyperstack_macros::{hyperstack, Stream};

#[hyperstack(idl = "idl.json")]
pub mod my_stream {
    #[entity(name = "MyEntity")]
    #[derive(Stream)]
    struct Entity {
        #[map(from = "MyAccount", field = "value")]
        pub value: u64,
        
        #[map(from = "MyAccount", field = "owner")]
        pub owner: String,
    }
}

#[hyperstack(proto = ["events.proto"])]
pub mod my_stream {
    // entity structs
}

The macro generates:

• {EntityName}State struct with all fields
• fields:: module with field accessors
• create_spec() function returning TypedStreamSpec
• Handler creation functions for each source

Apache-2.0