qubit-redact-derive 0.3.0

Derive macros for qubit-redact domain-object formatting
Documentation 
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// =============================================================================
//    Copyright (c) 2025 - 2026 Haixing Hu.
//
//    SPDX-License-Identifier: Apache-2.0
//
//    Licensed under the Apache License, Version 2.0.
// =============================================================================
//! Entry-point orchestration for the `Redact` derive.

use proc_macro::TokenStream;
use syn::DeriveInput;

use crate::{
    redact_expansion,
    runtime_path,
};

/// Parses and expands one `Redact` derive invocation.
///
/// # Parameters
///
/// * `input` - Tokens for the annotated Rust item.
///
/// # Returns
///
/// Generated implementation tokens. Parse, shape, and runtime-resolution
/// errors are returned as targeted `compile_error!` tokens.
#[inline]
pub(crate) fn derive(input: TokenStream) -> TokenStream {
    syn::parse::<DeriveInput>(input)
        .and_then(|input| {
            runtime_path::resolve(&input)
                .and_then(|runtime| redact_expansion::expand(&input, &runtime))
        })
        .unwrap_or_else(syn::Error::into_compile_error)
        .into()
}