From 54daace91590d074d6c9d6d644e1d8dca8166ff2 Mon Sep 17 00:00:00 2001
From: pradeep <pradeep@arrayfire.com>
Date: Mon, 18 Jan 2021 18:55:52 +0530
Subject: [PATCH 1/2] Extend HasAfEnum with Default, Copy and Debug traits

---
 src/core/arith.rs | 2 +-
 src/core/array.rs | 4 ++--
 src/core/util.rs  | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/core/arith.rs b/src/core/arith.rs
index 86a4681cb..3c978eef8 100644
--- a/src/core/arith.rs
+++ b/src/core/arith.rs
@@ -383,7 +383,7 @@ where
     type OutType = T;
 
     fn convert(&self) -> Array<Self::OutType> {
-        constant(self.clone(), Dim4::new(&[1, 1, 1, 1]))
+        constant(*self, Dim4::new(&[1, 1, 1, 1]))
     }
 }
 
diff --git a/src/core/array.rs b/src/core/array.rs
index 9d4267569..2518b1bb8 100644
--- a/src/core/array.rs
+++ b/src/core/array.rs
@@ -872,7 +872,7 @@ mod afserde {
     /// Serialize Implementation of Array
     impl<T> Serialize for Array<T>
     where
-        T: std::default::Default + std::clone::Clone + Serialize + HasAfEnum + std::fmt::Debug,
+        T: Serialize + HasAfEnum,
     {
         fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
         where
@@ -892,7 +892,7 @@ mod afserde {
     /// Deserialize Implementation of Array
     impl<'de, T> Deserialize<'de> for Array<T>
     where
-        T: Deserialize<'de> + HasAfEnum + std::fmt::Debug,
+        T: Deserialize<'de> + HasAfEnum,
     {
         fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
         where
diff --git a/src/core/util.rs b/src/core/util.rs
index 253695f31..b43635820 100644
--- a/src/core/util.rs
+++ b/src/core/util.rs
@@ -120,7 +120,7 @@ impl From<u32> for ColorMap {
 }
 
 mod private {
-    pub trait Sealed {}
+    pub trait Sealed: std::fmt::Debug + std::marker::Copy + std::default::Default {}
 
     impl Sealed for num::complex::Complex<f32> {}
     impl Sealed for num::complex::Complex<f64> {}

From 73437f311e179c26e89ebd0eb24ff0b107682e80 Mon Sep 17 00:00:00 2001
From: pradeep <pradeep@arrayfire.com>
Date: Mon, 18 Jan 2021 19:02:49 +0530
Subject: [PATCH 2/2] Implement Debug Trait for Array

---
 src/core/array.rs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/core/array.rs b/src/core/array.rs
index 2518b1bb8..6e22a10fc 100644
--- a/src/core/array.rs
+++ b/src/core/array.rs
@@ -5,6 +5,7 @@ use super::util::{af_array, dim_t, void_ptr, HasAfEnum};
 
 use libc::{c_char, c_int, c_longlong, c_uint, c_void};
 use std::ffi::CString;
+use std::fmt;
 use std::marker::PhantomData;
 
 // Some unused functions from array.h in C-API of ArrayFire
@@ -853,6 +854,24 @@ pub fn is_eval_manual() -> bool {
     }
 }
 
+/// Prints data type, shape and data of a given Array in programming friendly context
+///
+/// Used via println macro or formatter
+impl<T> fmt::Debug for Array<T>
+where
+    T: HasAfEnum,
+{
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let mut vec = vec![T::default(); self.elements()];
+        self.host(&mut vec);
+        f.debug_struct("Array")
+            .field("dtype", &self.get_type())
+            .field("shape", &self.dims())
+            .field("data", &vec)
+            .finish()
+    }
+}
+
 #[cfg(feature = "afserde")]
 mod afserde {
     // Reimport required from super scope