Static Decoding of Signed Extensions: Simple Approach (#1235)

* skeleton commit

* signed extension decoding

* fix some minor things

* make api more similar to Extrinsics

* defer decoding of signed extensions

* fix byte slices

* add test for nonce signed extension

* adjust test and extend for tip

* clippy

* support both  ChargeTransactionPayment and ChargeAssetTxPayment

* address PR comments

* Extend lifetimes, expose pub structs, remove as_type

* add signed extensions to block subscribing example

* add Decoded type

* fix merging bug and tests

* add decoded type in CustomSignedExtension

* fix minor issues, extend test

* cargo fmt differences

* remove the `decoded` function

* new as_signed_extra fn, do not expose as_type anymore

* fix Result-Option order, simplify obtaining Nonce

* tx: Remove `wait_for_in_block` helper method (#1237)

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Update smoldot to 0.12 (#1212)

* Update lightclient

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* testing: Fix typo

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* testing: Update cargo.toml

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* lightclient: Add tracing logs to improve debugging

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* lightclient: Add socket buffers module for `PlatformRef`

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* lightclient: Update `SubxtPlatform`

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cargo: Add lightclient dependencies

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Update cargo.lock of wasm tests

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* lightclient: Add constant for with-buffer module

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* lightclient: Replace rand crate with getrandom

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* example: Update cargo lock file

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* examples: Update deps

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

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Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>
Co-authored-by: Tadeo Hepperle <62739623+tadeohepperle@users.noreply.github.com>

* ChargeAssetTxPayment: support providing u32 or MultiLocation in default impl (#1227)

* Asset Id in Config trait

* add example configuring the config

* fmt

* fix Default trait bound

* merge examples, fix default again

* adjust config in examples

* Update subxt/src/config/mod.rs

Co-authored-by: James Wilson <james@jsdw.me>

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Co-authored-by: James Wilson <james@jsdw.me>

* generic AssetId

* fix generics

* fmt

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Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>
Co-authored-by: James Wilson <james@jsdw.me>
Co-authored-by: Alexandru Vasile <60601340+lexnv@users.noreply.github.com>

subxt/src/config/mod.rs

@@ -17,6 +17,7 @@ pub mod substrate;
 
 use codec::{Decode, Encode};
 use core::fmt::Debug;
+use scale_decode::DecodeAsType;
 use serde::{de::DeserializeOwned, Serialize};
 
 pub use default_extrinsic_params::{DefaultExtrinsicParams, DefaultExtrinsicParamsBuilder};
@@ -53,7 +54,7 @@ pub trait Config: Sized + Send + Sync + 'static {
     type ExtrinsicParams: ExtrinsicParams<Self>;
 
     /// This is used to identify an asset in the `ChargeAssetTxPayment` signed extension.
-    type AssetId: Debug + Encode;
+    type AssetId: Debug + Encode + DecodeAsType;
 }
 
 /// given some [`Config`], this return the other params needed for its `ExtrinsicParams`.