impl async_std::io::Read for Command (#19)

* [wip] starting 3.0 w/ support for using commands as impl Read

* better error message

* ownship changes

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "kramer"
-version = "2.1.0"
+version = "3.0.0"
 authors = ["Danny Hadley <dadleyy@gmail.com>"]
 edition = "2018"
 license = "MIT"
@@ -15,4 +15,5 @@ optional = true
 
 [features]
 kramer-async = ["async-std"]
+kramer-async-read = ["kramer-async"]
 acl = []

src/acl.rs

@@ -16,10 +16,7 @@ use super::modifiers::{format_bulk_string, Arity};
 /// Notice: Currently `Display` is only implemented if all fields are present/`Some`.
 #[cfg(feature = "acl")]
 #[derive(Debug)]
-pub struct SetUser<S>
-where
-  S: std::fmt::Display,
-{
+pub struct SetUser<S> {
   /// The name of the ACL entry.
   pub name: S,
 
@@ -36,10 +33,7 @@ where
 /// Redis acl commands.
 #[cfg(feature = "acl")]
 #[derive(Debug)]
-pub enum AclCommand<S>
-where
-  S: std::fmt::Display,
-{
+pub enum AclCommand<S> {
   /// Requests a list of all acl entries.
   List,
 

src/hashes.rs

@@ -3,11 +3,7 @@ use crate::modifiers::{format_bulk_string, Arity, Insertion};
 /// `HashCommand` represents the possible redis operations of keys that
 /// are a hash type.
 #[derive(Debug)]
-pub enum HashCommand<S, V>
-where
-  S: std::fmt::Display,
-  V: std::fmt::Display,
-{
+pub enum HashCommand<S, V> {
   /// Deletes fields from a given hash.
   Del(S, Arity<S>),