graph-api-derive 0.1.4

Derive macros for the graph-api ecosystem - provides type-safe vertex and edge extensions
Documentation 
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use crate::model::DeriveType;
use proc_macro::TokenStream;
use syn::{DeriveInput, parse_macro_input};

pub(crate) mod model;
mod render;

#[proc_macro_derive(VertexExt, attributes(index))]
pub fn vertex_ext(input: TokenStream) -> TokenStream {
    let input = parse_macro_input!(input as DeriveInput);
    match model::Model::try_from(DeriveType::Vertex(&input)) {
        Ok(model) => model.into_vertex().into(),
        Err(e) => e.into_compile_error().into(),
    }
}

#[proc_macro_derive(EdgeExt, attributes(index))]
pub fn edge_ext(input: TokenStream) -> TokenStream {
    let input = parse_macro_input!(input as DeriveInput);
    match model::Model::try_from(DeriveType::Edge(&input)) {
        Ok(model) => model.into_edge().into(),
        Err(e) => e.into_compile_error().into(),
    }
}