Merge pull request #2243 from multiversx/token-id-display

Display for TokenId and EgldOrEsdtTokenIdentifier

Author: andrei-marinica

framework/base/src/types/managed/wrapped/token/egld_or_esdt_token_identifier.rs

@@ -378,3 +378,13 @@ where
         )
     }
 }
+
+impl<M: ManagedTypeApi> core::fmt::Display for EgldOrEsdtTokenIdentifier<M> {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+        self.map_ref_or_else(
+            f,
+            |f| core::fmt::Display::fmt("EGLD", f),
+            |f, token_identifier| core::fmt::Display::fmt(token_identifier, f),
+        )
+    }
+}

framework/base/src/types/managed/wrapped/token/token_id.rs

@@ -1,4 +1,4 @@
-use alloc::string::String;
+use alloc::string::{String, ToString};
 use multiversx_chain_core::EGLD_000000_TOKEN_IDENTIFIER;
 
 use crate::{
@@ -17,7 +17,7 @@ use crate::{
 
 /// Specialized type for handling token identifiers (e.g. ABCDEF-123456).
 #[repr(transparent)]
-#[derive(Debug, Clone)]
+#[derive(Clone)]
 pub struct TokenId<M: ManagedTypeApi> {
     pub(crate) buffer: ManagedBuffer<M>,
 }
@@ -283,3 +283,17 @@ impl<M: ManagedTypeApi> SCLowerHex for TokenId<M> {
         f.append_managed_buffer_lower_hex(&wrap_cast);
     }
 }
+
+impl<M: ManagedTypeApi> core::fmt::Display for TokenId<M> {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+        let bytes = self.buffer.to_boxed_bytes();
+        let s = alloc::string::String::from_utf8_lossy(bytes.as_slice());
+        s.fmt(f)
+    }
+}
+
+impl<M: ManagedTypeApi> core::fmt::Debug for TokenId<M> {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+        f.debug_tuple("TokenId").field(&self.to_string()).finish()
+    }
+}

framework/scenario/tests/token_id_test.rs

@@ -1,8 +1,8 @@
 use multiversx_sc::{
     chain_core::EGLD_000000_TOKEN_IDENTIFIER,
     types::{
-        BoxedBytes, EgldOrEsdtTokenIdentifier, EgldOrEsdtTokenPayment, EsdtTokenPayment,
-        ManagedBuffer, TokenId,
+        BoxedBytes, EgldOrEsdtTokenIdentifier, EgldOrEsdtTokenPayment, EsdtTokenIdentifier,
+        EsdtTokenPayment, ManagedBuffer, TokenId,
     },
 };
 use multiversx_sc_scenario::{
@@ -222,3 +222,27 @@ fn test_managed_token_id_macro() {
         TokenId::<StaticApi>::from("ALC-6258d2")
     );
 }
+
+#[test]
+fn test_token_id_to_string() {
+    assert_eq!(
+        TokenId::<StaticApi>::from("ALC-6258d2").to_string(),
+        "ALC-6258d2"
+    );
+    assert_eq!(
+        TokenId::<StaticApi>::from("EGLD-00000").to_string(),
+        "EGLD-00000"
+    );
+    assert_eq!(
+        EgldOrEsdtTokenIdentifier::<StaticApi>::egld().to_string(),
+        "EGLD"
+    );
+    assert_eq!(
+        EgldOrEsdtTokenIdentifier::<StaticApi>::esdt(TokenId::from("EGLDORESDT-00001")).to_string(),
+        "EGLDORESDT-00001"
+    );
+    assert_eq!(
+        EsdtTokenIdentifier::<StaticApi>::from_esdt_bytes("ESDT-00001").to_string(),
+        "ESDT-00001"
+    );
+}