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Allow multiple bounds to be specified at decl_error! (#7448)

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* Allow multiple bounds to be specified at decl_error!

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Test if decl_error! accepts multiple bounds

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
This commit is contained in:
Alexander Theißen
2020-10-28 15:46:08 +01:00
committed by GitHub
parent 9687759774
commit 9bfaf451a7
2 changed files with 13 additions and 8 deletions
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substrate/frame/support/src/error.rs
+7 -7
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@@ -77,7 +77,7 @@ macro_rules! decl_error {
$generic:ident: $trait:path
$(, $inst_generic:ident: $instance:path)?
>
$( where $( $where_ty:ty: $where_bound:path )* $(,)? )?
$( where $( $where_ty:ty: $where_bound:path ),* $(,)? )?
{
$(
$( #[doc = $doc_attr:tt] )*
@@ -88,7 +88,7 @@ macro_rules! decl_error {
) => {
$(#[$attr])*
pub enum $error<$generic: $trait $(, $inst_generic: $instance)?>
$( where $( $where_ty: $where_bound )* )?
$( where $( $where_ty: $where_bound ),* )?
{
#[doc(hidden)]
__Ignore(
@@ -103,7 +103,7 @@ macro_rules! decl_error {
impl<$generic: $trait $(, $inst_generic: $instance)?> $crate::sp_std::fmt::Debug
for $error<$generic $(, $inst_generic)?>
$( where $( $where_ty: $where_bound )* )?
$( where $( $where_ty: $where_bound ),* )?
{
fn fmt(&self, f: &mut $crate::sp_std::fmt::Formatter<'_>) -> $crate::sp_std::fmt::Result {
f.write_str(self.as_str())
@@ -111,7 +111,7 @@ macro_rules! decl_error {
}
impl<$generic: $trait $(, $inst_generic: $instance)?> $error<$generic $(, $inst_generic)?>
$( where $( $where_ty: $where_bound )* )?
$( where $( $where_ty: $where_bound ),* )?
{
fn as_u8(&self) -> u8 {
$crate::decl_error! {
@@ -136,7 +136,7 @@ macro_rules! decl_error {
impl<$generic: $trait $(, $inst_generic: $instance)?> From<$error<$generic $(, $inst_generic)?>>
for &'static str
$( where $( $where_ty: $where_bound )* )?
$( where $( $where_ty: $where_bound ),* )?
{
fn from(err: $error<$generic $(, $inst_generic)?>) -> &'static str {
err.as_str()
@@ -145,7 +145,7 @@ macro_rules! decl_error {
impl<$generic: $trait $(, $inst_generic: $instance)?> From<$error<$generic $(, $inst_generic)?>>
for $crate::sp_runtime::DispatchError
$( where $( $where_ty: $where_bound )* )?
$( where $( $where_ty: $where_bound ),* )?
{
fn from(err: $error<$generic $(, $inst_generic)?>) -> Self {
let index = <$generic::PalletInfo as $crate::traits::PalletInfo>
@@ -162,7 +162,7 @@ macro_rules! decl_error {
impl<$generic: $trait $(, $inst_generic: $instance)?> $crate::error::ModuleErrorMetadata
for $error<$generic $(, $inst_generic)?>
$( where $( $where_ty: $where_bound )* )?
$( where $( $where_ty: $where_bound ),* )?
{
fn metadata() -> &'static [$crate::error::ErrorMetadata] {
&[