Propagate _code to Pkg trait

Signed-off-by: Luca Fulchir <luca.fulchir@runesauth.com>

bok-macro/src/lib.rs

@@ -361,12 +361,13 @@ pub fn derive_package(input: TokenStream) -> TokenStream {
                 Some(&self.base)
             }
         }
+        // FIXME: proper formatting of all functions
         impl ::core::fmt::Display for #name {
             fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>)
                 ->::core::fmt::Result
             {
                 use ::bok::Pkg;
-                let pkg = self.package();
+                let pkg = self.package_code();
                 pkg.fmt(f)
             }
         }

bok/src/lib.rs

@@ -84,28 +84,61 @@ impl Repository for RepositoryEmpty {}
 /// Implement common package operations
 pub trait Pkg: ::std::default::Default + ::core::fmt::Display {
     fn base(&self) -> Option<&impl Pkg>;
-    fn prepare(&self) -> ::proc_macro2::TokenStream {
+    fn prepare(&self) -> ::core::result::Result<(), ()> {
         self.base().unwrap().prepare()
     }
-    fn configure(&self) -> ::proc_macro2::TokenStream {
+    fn prepare_code(&self) -> ::proc_macro2::TokenStream {
+        ::quote::quote! {
+            self.base().unwrap().prepare()
+        }
+    }
+    fn configure(&self) -> ::core::result::Result<(), ()> {
         self.base().unwrap().configure()
     }
-    fn build(&self) -> ::proc_macro2::TokenStream {
+    fn configure_code(&self) -> ::proc_macro2::TokenStream {
+        ::quote::quote! {
+            self.base().unwrap().configure()
+        }
+    }
+    fn build(&self) -> ::core::result::Result<(), ()> {
         self.base().unwrap().build()
     }
-    fn check(&self) -> ::proc_macro2::TokenStream {
+    fn build_code(&self) -> ::proc_macro2::TokenStream {
+        ::quote::quote! {
+            self.base().unwrap().build()
+        }
+    }
+    fn check(&self) -> ::core::result::Result<(), ()> {
         self.base().unwrap().check()
     }
-    fn install(&self) -> ::proc_macro2::TokenStream {
+    fn check_code(&self) -> ::proc_macro2::TokenStream {
+        ::quote::quote! {
+            self.base().unwrap().check()
+        }
+    }
+    fn install(&self) -> ::core::result::Result<(), ()> {
         self.base().unwrap().install()
     }
-    fn package(&self) -> ::proc_macro2::TokenStream {
+    fn install_code(&self) -> ::proc_macro2::TokenStream {
-        let mut all = self.prepare();
+        ::quote::quote! {
-        all.extend(self.configure());
+            self.base().unwrap().install()
-        all.extend(self.build());
+        }
-        all.extend(self.check());
+    }
-        all.extend(self.install());
+    fn package(&self) -> ::core::result::Result<(), ()> {
-        all
+        self.prepare()?;
+        self.configure()?;
+        self.build()?;
+        self.check()?;
+        self.install()
+    }
+    fn package_code(&self) -> ::proc_macro2::TokenStream {
+        ::quote::quote! {
+            self.prepare()?;
+            self.configure()?;
+            self.build()?;
+            self.check()?;
+            self.install()
+        }
     }
 }
 
@@ -113,7 +146,7 @@ pub trait Pkg: ::std::default::Default + ::core::fmt::Display {
 pub struct PkgEmpty {}
 
 impl ::core::fmt::Display for PkgEmpty {
-    fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
+    fn fmt(&self, _f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
         Ok(())
     }
 }
@@ -122,20 +155,45 @@ impl Pkg for PkgEmpty {
     fn base(&self) -> Option<&impl Pkg> {
         None::<Self>.as_ref()
     }
-    fn prepare(&self) -> ::proc_macro2::TokenStream {
+    fn prepare(&self) -> ::core::result::Result<(), ()> {
-        ::quote::quote! {}
+        Ok(())
     }
-    fn configure(&self) -> ::proc_macro2::TokenStream {
+    fn prepare_code(&self) -> ::proc_macro2::TokenStream {
-        ::quote::quote! {}
+        ::quote::quote! {
+            Ok(())
+        }
     }
-    fn build(&self) -> ::proc_macro2::TokenStream {
+    fn configure(&self) -> ::core::result::Result<(), ()> {
-        ::quote::quote! {}
+        Ok(())
     }
-    fn check(&self) -> ::proc_macro2::TokenStream {
+    fn configure_code(&self) -> ::proc_macro2::TokenStream {
-        ::quote::quote! {}
+        ::quote::quote! {
+            Ok(())
+        }
     }
-    fn install(&self) -> ::proc_macro2::TokenStream {
+    fn build(&self) -> ::core::result::Result<(), ()> {
-        ::quote::quote! {}
+        Ok(())
+    }
+    fn build_code(&self) -> ::proc_macro2::TokenStream {
+        ::quote::quote! {
+            Ok(())
+        }
+    }
+    fn check(&self) -> ::core::result::Result<(), ()> {
+        Ok(())
+    }
+    fn check_code(&self) -> ::proc_macro2::TokenStream {
+        ::quote::quote! {
+            Ok(())
+        }
+    }
+    fn install(&self) -> ::core::result::Result<(), ()> {
+        Ok(())
+    }
+    fn install_code(&self) -> ::proc_macro2::TokenStream {
+        ::quote::quote! {
+            Ok(())
+        }
     }
 }