From e80d849f9a7ff23b8ca21d260f88c49f94ddb1f5 Mon Sep 17 00:00:00 2001
From: Tony Garnock-Jones <tonyg@leastfixedpoint.com>
Date: Mon, 2 Aug 2021 21:49:05 +0200
Subject: [PATCH] DomainUnparse is useless

---
 .../rust/preserves/src/value/domain.rs        | 30 -------------------
 .../rust/preserves/src/value/mod.rs           |  1 -
 2 files changed, 31 deletions(-)

diff --git a/implementations/rust/preserves/src/value/domain.rs b/implementations/rust/preserves/src/value/domain.rs
index f1042e0..7c8c32a 100644
--- a/implementations/rust/preserves/src/value/domain.rs
+++ b/implementations/rust/preserves/src/value/domain.rs
@@ -15,13 +15,6 @@ pub trait DomainParse<D: Embeddable> {
     ) -> io::Result<D>;
 }
 
-pub trait DomainUnparse<D: Embeddable> {
-    fn unparse_embedded(
-        &mut self,
-        d: &D,
-    ) -> io::Result<IOValue>;
-}
-
 pub trait DomainDecode<D: Embeddable> {
     fn decode_embedded<'de, 'src, S: BinarySource<'de>>(
         &mut self,
@@ -119,18 +112,6 @@ impl<D: Embeddable, C: DomainDecode<D>> DomainParse<D> for ViaCodec<C> {
     }
 }
 
-impl<D: Embeddable, C: DomainEncode<D>> DomainUnparse<D> for ViaCodec<C> {
-    fn unparse_embedded(
-        &mut self,
-        d: &D,
-    ) -> io::Result<IOValue> {
-        let mut bs = Vec::new();
-        let w = &mut packed::PackedWriter::new(&mut bs);
-        self.0.encode_embedded(w, d)?;
-        packed::annotated_iovalue_from_bytes(&bs)
-    }
-}
-
 impl<D: Embeddable, C: DomainParse<D>> DomainDecode<D> for ViaCodec<C> {
     fn decode_embedded<'de, 'src, S: BinarySource<'de>>(
         &mut self,
@@ -141,14 +122,3 @@ impl<D: Embeddable, C: DomainParse<D>> DomainDecode<D> for ViaCodec<C> {
         self.0.parse_embedded(&v)
     }
 }
-
-impl<D: Embeddable, C: DomainUnparse<D>> DomainEncode<D> for ViaCodec<C> {
-    fn encode_embedded<W: Writer>(
-        &mut self,
-        w: &mut W,
-        d: &D,
-    ) -> io::Result<()> {
-        let v = self.0.unparse_embedded(d)?;
-        w.write(&mut IOValueDomainCodec, &v)
-    }
-}
diff --git a/implementations/rust/preserves/src/value/mod.rs b/implementations/rust/preserves/src/value/mod.rs
index b89dbb0..04b7fe5 100644
--- a/implementations/rust/preserves/src/value/mod.rs
+++ b/implementations/rust/preserves/src/value/mod.rs
@@ -16,7 +16,6 @@ pub use de::from_value;
 pub use domain::DomainDecode;
 pub use domain::DomainEncode;
 pub use domain::DomainParse;
-pub use domain::DomainUnparse;
 pub use domain::IOValueDomainCodec;
 pub use domain::NoEmbeddedDomainCodec;
 pub use domain::ViaCodec;