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>

---------

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>

---------

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

* generic AssetId

* fix generics

* fmt

---------

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/examples/blocks_subscribing.rs

@@ -40,7 +40,6 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
             for evt in events.iter() {
                 let evt = evt?;
-
                 let pallet_name = evt.pallet_name();
                 let event_name = evt.variant_name();
                 let event_values = evt.field_values()?;

subxt/examples/setup_config_signed_extension.rs

@@ -46,6 +46,7 @@ pub struct CustomSignedExtension;
 // up in the chain metadata in order to know when and if to use it.
 impl<T: Config> signed_extensions::SignedExtension<T> for CustomSignedExtension {
     const NAME: &'static str = "CustomSignedExtension";
+    type Decoded = ();
 }
 
 // Gather together any params we need for our signed extension, here none.