zcash_primitives: Add feature flags to docs.rs documentation

zcash_primitives/Cargo.toml

@@ -11,6 +11,9 @@ readme = "README.md"
 license = "MIT OR Apache-2.0"
 edition = "2018"
 
+[package.metadata.docs.rs]
+all-features = true
+
 [dependencies]
 aes = "0.5"
 blake2b_simd = "0.5"

zcash_primitives/src/lib.rs

@@ -3,6 +3,7 @@
 //! `zcash_primitives` is a library that provides the core structs and functions necessary
 //! for working with Zcash.
 
+#![cfg_attr(docsrs, feature(doc_cfg))]
 // Catch documentation errors caused by code changes.
 #![deny(intra_doc_link_resolution_failure)]
 

zcash_primitives/src/transaction/builder.rs

@@ -412,6 +412,7 @@ impl<P: consensus::Parameters, R: RngCore + CryptoRng> Builder<P, R> {
 
     /// Adds a transparent coin to be spent in this transaction.
     #[cfg(feature = "transparent-inputs")]
+    #[cfg_attr(docsrs, doc(cfg(feature = "transparent-inputs")))]
     pub fn add_transparent_input(
         &mut self,
         sk: secp256k1::SecretKey,

zcash_primitives/src/transaction/components.rs

@@ -60,6 +60,7 @@ pub struct TxIn {
 
 impl TxIn {
     #[cfg(feature = "transparent-inputs")]
+    #[cfg_attr(docsrs, doc(cfg(feature = "transparent-inputs")))]
     pub fn new(prevout: OutPoint) -> Self {
         TxIn {
             prevout,