From 307839648780f8fa5d43b1ffe7a310268048e1a2 Mon Sep 17 00:00:00 2001
From: Tony Garnock-Jones <tonyg@leastfixedpoint.com>
Date: Wed, 4 Aug 2021 15:41:23 +0200
Subject: [PATCH] Conveniences for TextReader matching those existing for
 PackedReader

---
 .../rust/preserves/src/value/reader.rs          | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/implementations/rust/preserves/src/value/reader.rs b/implementations/rust/preserves/src/value/reader.rs
index ac7cd51..a871e27 100644
--- a/implementations/rust/preserves/src/value/reader.rs
+++ b/implementations/rust/preserves/src/value/reader.rs
@@ -4,14 +4,16 @@ use std::borrow::Cow;
 use std::io;
 use std::marker::PhantomData;
 
+use super::CompoundClass;
 use super::DomainDecode;
+use super::DomainParse;
 use super::Double;
 use super::Embeddable;
 use super::Float;
 use super::IOValue;
 use super::IOValueDomainCodec;
 use super::NestedValue;
-use super::CompoundClass;
+use super::ViaCodec;
 use super::boundary as B;
 use super::signed_integer::SignedInteger;
 
@@ -243,6 +245,19 @@ pub trait BinarySource<'de>: Sized {
     {
         self.packed(IOValueDomainCodec)
     }
+
+    fn text<D: Embeddable, N: NestedValue<D>, Dec: DomainParse<D>>(
+        &mut self,
+        decode_embedded: Dec,
+    ) -> super::TextReader<'de, '_, D, Dec, Self> {
+        super::TextReader::new(self, decode_embedded)
+    }
+
+    fn text_iovalues(&mut self) ->
+        super::TextReader<'de, '_, IOValue, ViaCodec<IOValueDomainCodec>, Self>
+    {
+        self.text::<_, IOValue, _>(ViaCodec::new(IOValueDomainCodec))
+    }
 }
 
 pub struct IOBinarySource<'a, R: io::Read + io::Seek> {