wire-framework-derive 0.1.0

A procedural macro for wire-framework
Documentation 
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extern crate proc_macro;

use proc_macro::TokenStream;
use syn::{DeriveInput, parse_macro_input};

use crate::macro_impl::{MacroImpl, MacroKind};

pub(crate) mod helpers;
mod labels;
mod macro_impl;

/// Derive macro for the `FromContext` trait.
/// Allows to automatically fetch all the resources and tasks from the context.
///
/// See the trait documentation for more details.
#[proc_macro_derive(FromContext, attributes(context))]
pub fn from_context_derive(input: TokenStream) -> TokenStream {
    // Parse the input tokens into a syntax tree
    let input = parse_macro_input!(input as DeriveInput);
    MacroImpl::parse(MacroKind::FromContext, input)
        .and_then(|from_context| from_context.render())
        .unwrap_or_else(syn::Error::into_compile_error)
        .into()
}

/// Derive macro for the `IntoContext` trait.
/// Allows to automatically insert all the resources in tasks created by the wiring layer
/// into the context.
///
/// See the trait documentation for more details.
#[proc_macro_derive(IntoContext, attributes(context))]
pub fn into_context_derive(input: TokenStream) -> TokenStream {
    // Parse the input tokens into a syntax tree
    let input = parse_macro_input!(input as DeriveInput);
    MacroImpl::parse(MacroKind::IntoContext, input)
        .and_then(|from_context| from_context.render())
        .unwrap_or_else(syn::Error::into_compile_error)
        .into()
}