From 80eb703f5eeb01f1d7e5ba7bfcc479b1ea234bd6 Mon Sep 17 00:00:00 2001
From: greg <greg.shuflin@protonmail.com>
Date: Sat, 29 Sep 2018 01:20:31 -0700
Subject: [PATCH] Finally got get_doc hookup in codegen macro working

---
 schala-codegen/src/lib.rs | 12 +++++++-----
 schala-lang/src/lib.rs    |  4 ++--
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/schala-codegen/src/lib.rs b/schala-codegen/src/lib.rs
index e026d2f..3ef4430 100644
--- a/schala-codegen/src/lib.rs
+++ b/schala-codegen/src/lib.rs
@@ -72,13 +72,13 @@ pub fn derive_programming_language_interface(input: TokenStream) -> TokenStream
   let passes = extract_attribute_list("PipelineSteps", attrs).expect("PipelineSteps are required");
   let pass_idents = passes.iter().map(|x| x.0.clone());
 
-  let doc_method: Option<String>= find_attr_by_name("DocMethod", attrs).and_then(|attr| {
+  let doc_method: Option<proc_macro2::Ident>= find_attr_by_name("DocMethod", attrs).and_then(|attr| {
     let tts = attr.tts.clone().into_iter().collect::<Vec<_>>();
 
     if tts.len() == 2 {
       let ref after_equals: proc_macro2::TokenTree = tts[1];
       match after_equals {
-        proc_macro2::TokenTree::Ident(ident)  => Some(ident.to_string()),
+        proc_macro2::TokenTree::Ident(ident)  => Some(ident.clone()),
         _ => None
       }
     } else {
@@ -88,9 +88,9 @@ pub fn derive_programming_language_interface(input: TokenStream) -> TokenStream
 
   let doc_method_body = match doc_method {
     None => quote! { },
-    Some(s) => quote!{
+    Some(method_name) => quote! {
       fn get_doc(&self, commands: &Vec<&str>) -> Option<String> {
-        #s(commands)
+        self.#method_name(commands)
       }
     }
   };
@@ -128,8 +128,10 @@ pub fn derive_programming_language_interface(input: TokenStream) -> TokenStream
         vec![ #(#pass_descriptors),* ]
         //vec![ #(PassDescriptor { name: #pass_names.to_string(), debug_options: vec![] }),* ]
       }
-    }
+
       #doc_method_body
+
+    }
   };
 
   let output: TokenStream = tokens.into();
diff --git a/schala-lang/src/lib.rs b/schala-lang/src/lib.rs
index 390ef98..2359a95 100644
--- a/schala-lang/src/lib.rs
+++ b/schala-lang/src/lib.rs
@@ -44,8 +44,8 @@ pub struct Schala {
 }
 
 impl Schala {
-  fn get_doc(&self, _commands: &Vec<&str>) -> Option<String> {
-    Some(format!("yup this is getting called right"))
+  fn get_doc(&self, commands: &Vec<&str>) -> Option<String> {
+    Some(format!("Documentation on commands: {:?}", commands))
   }
 }