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Replaced elrond_codec import with multiversx_sc::codec #643

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Jul 10, 2023
Merged

Replaced elrond_codec import with multiversx_sc::codec #643

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8 changes: 6 additions & 2 deletions docs/developers/developer-reference/upgrading-smart-contracts.md
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Original file line number Diff line number Diff line change
Expand Up @@ -72,6 +72,8 @@ You always need to add new fields at the end of the struct, otherwise, this appr
To fix this, we need to manually implement the decoding traits, which were previously automatically added through the derives.

```rust
use multiversx_sc::codec::{NestedDecodeInput, TopDecodeInput};

#[derive(TypeAbi, TopEncode, NestedEncode)]
pub struct UserData<M: ManagedTypeApi> {
pub stake_amount: BigUint<M>,
Expand All @@ -82,7 +84,7 @@ pub struct UserData<M: ManagedTypeApi> {
impl<M: ManagedTypeApi> TopDecode for UserData<M> {
fn top_decode<I>(input: I) -> Result<Self, DecodeError>
where
I: elrond_codec::TopDecodeInput,
I: TopDecodeInput,
{
let mut buffer = input.into_nested_buffer();
Self::dep_decode(&mut buffer)
Expand Down Expand Up @@ -126,6 +128,8 @@ Unless you want to remove the very last field of the struct, and change nothing
Assuming you simply want to remove `last_update_block` for the example above, the implementation would be as follows:

```rust
use multiversx_sc::codec::{NestedDecodeInput, TopDecodeInput};

#[derive(TypeAbi, TopEncode, NestedEncode)]
pub struct UserData<M: ManagedTypeApi> {
pub stake_amount: BigUint<M>,
Expand All @@ -134,7 +138,7 @@ pub struct UserData<M: ManagedTypeApi> {
impl<M: ManagedTypeApi> TopDecode for UserData<M> {
fn top_decode<I>(input: I) -> Result<Self, DecodeError>
where
I: elrond_codec::TopDecodeInput,
I: TopDecodeInput,
{
let mut buffer = input.into_nested_buffer();
Self::dep_decode(&mut buffer)
Expand Down
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