Merge pull request #110 from Nadrieril/parser-proc-macro

Rewrite parser macros as proc_macros

1 files changed, 19 insertions, 0 deletions

diff --git a/dhall_proc_macros/src/lib.rs b/dhall_proc_macros/src/lib.rs
index 5304429..37e8f9f 100644
--- a/dhall_proc_macros/src/lib.rs
+++ b/dhall_proc_macros/src/lib.rs
@@ -1,3 +1,4 @@
+#![feature(drain_filter)]
 //! This crate contains the code-generation primitives for the [dhall-rust][dhall-rust] crate.
 //! This is highly unstable and breaks regularly; use at your own risk.
 //!
@@ -6,6 +7,8 @@
 extern crate proc_macro;
 
 mod derive;
+mod make_parser;
+mod parse_children;
 
 use proc_macro::TokenStream;
 
@@ -13,3 +16,19 @@ use proc_macro::TokenStream;
 pub fn derive_static_type(input: TokenStream) -> TokenStream {
     derive::derive_static_type(input)
 }
+
+#[proc_macro_attribute]
+pub fn make_parser(attrs: TokenStream, input: TokenStream) -> TokenStream {
+    TokenStream::from(match make_parser::make_parser(attrs, input) {
+        Ok(tokens) => tokens,
+        Err(err) => err.to_compile_error(),
+    })
+}
+
+#[proc_macro]
+pub fn parse_children(input: TokenStream) -> TokenStream {
+    TokenStream::from(match parse_children::parse_children(input) {
+        Ok(tokens) => tokens,
+        Err(err) => err.to_compile_error(),
+    })
+}