mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-06-13 00:01:09 +00:00
Sam Johnson
7c4bfc9749
* stub for construct_dev_runtime! * revert * stub for dev_mode proc macro * preliminary docs for pallet::dev_mode (attribute) proc macro * add dev_mode to pallet_macros module * add docs item for dev_mode to frame_support * parsing of #[pallet(dev_mode)] * strip out dev_mode stub since it will be an arg for pallet instead * make pallet Def struct aware of dev mode * WIP * revert changes to call.rs * pass dev_mode to pallet parsing code * auto-specify default weights when in dev mode if not specified * add proof / expect for syn::parse in dev mode weight processing * set all storages to unbounded when in dev mode * just use 0 Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com> * add invalid pallet arg test * add passing dev mode pallet test * add test confirming that dev mode features only work in dev mode * cargo fmt + clean up * bump CI * fix pallet ui test * add docs for dev mode * add warning about using dev mode in production circumstances * remove comment about no other attributes being supported * fix unneeded assignment * make warning more explicit * more explicit warning about using dev mode in production * simpler assignment for dev_mode boolean Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * add note about MEL requirement Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * add comment specifying why weights can be omitted in example Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * tweak wording of comments * bump ci Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com> Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
62 lines
2.1 KiB
Rust
62 lines
2.1 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) 2020-2022 Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: Apache-2.0
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//! Implementation for pallet attribute macro.
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//!
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//! General workflow:
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//! 1 - parse all pallet attributes:
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//! This step remove all attributes `#[pallet::*]` from the ItemMod and build the `Def` struct
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//! which holds the ItemMod without `#[pallet::*]` and information given by those attributes
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//! 2 - expand from the parsed information
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//! This step will modify the ItemMod by adding some derive attributes or phantom data variants
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//! to user defined types. And also crate new types and implement block.
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mod expand;
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mod parse;
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pub use parse::Def;
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use syn::spanned::Spanned;
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mod keyword {
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syn::custom_keyword!(dev_mode);
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}
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pub fn pallet(
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attr: proc_macro::TokenStream,
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item: proc_macro::TokenStream,
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) -> proc_macro::TokenStream {
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let mut dev_mode = false;
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if !attr.is_empty() {
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if let Ok(_) = syn::parse::<keyword::dev_mode>(attr.clone()) {
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dev_mode = true;
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} else {
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let msg = "Invalid pallet macro call: unexpected attribute. Macro call must be \
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bare, such as `#[frame_support::pallet]` or `#[pallet]`, or must specify the \
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`dev_mode` attribute, such as `#[frame_support::pallet(dev_mode)]` or \
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#[pallet(dev_mode)].";
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let span = proc_macro2::TokenStream::from(attr).span();
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return syn::Error::new(span, msg).to_compile_error().into()
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}
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}
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let item = syn::parse_macro_input!(item as syn::ItemMod);
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match parse::Def::try_from(item, dev_mode) {
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Ok(def) => expand::expand(def).into(),
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Err(e) => e.to_compile_error().into(),
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}
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}
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