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Extend PalletInfoAccess with module_name and crate_version method (#9690
) * Record pallet indices in CallMetadata * Resurrect PalletVersion infrastructure and rename as CrateVersion * cargo fmt * Add missing runtime generics to pallet struct * Fix path to instance * Fix test * Fix UI test expectations * Fix UI test expectations * Move crate_version function to PalletInfoAccess * Update UI test expectations * Add crate_name method to PalletInfo * Convert path to module name instead of exposing crate name * cargo fmt * Keep the double colons when constructing the module name * Remove unused import * Update UI test expectations * Update frame/support/src/traits/metadata.rs Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com> * Update UI test expectations Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>
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// This file is part of Substrate. | ||
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// Copyright (C) 2020-2021 Parity Technologies (UK) Ltd. | ||
// SPDX-License-Identifier: Apache-2.0 | ||
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// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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//! Implementation of macros related to crate versioning. | ||
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use super::get_cargo_env_var; | ||
use frame_support_procedural_tools::generate_crate_access_2018; | ||
use proc_macro2::{Span, TokenStream}; | ||
use syn::{Error, Result}; | ||
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/// Create an error that will be shown by rustc at the call site of the macro. | ||
fn create_error(message: &str) -> Error { | ||
Error::new(Span::call_site(), message) | ||
} | ||
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/// Implementation of the `crate_to_crate_version!` macro. | ||
pub fn crate_to_crate_version(input: proc_macro::TokenStream) -> Result<TokenStream> { | ||
if !input.is_empty() { | ||
return Err(create_error("No arguments expected!")) | ||
} | ||
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let major_version = get_cargo_env_var::<u16>("CARGO_PKG_VERSION_MAJOR") | ||
.map_err(|_| create_error("Major version needs to fit into `u16`"))?; | ||
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let minor_version = get_cargo_env_var::<u8>("CARGO_PKG_VERSION_MINOR") | ||
.map_err(|_| create_error("Minor version needs to fit into `u8`"))?; | ||
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let patch_version = get_cargo_env_var::<u8>("CARGO_PKG_VERSION_PATCH") | ||
.map_err(|_| create_error("Patch version needs to fit into `u8`"))?; | ||
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let crate_ = generate_crate_access_2018("frame-support")?; | ||
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Ok(quote::quote! { | ||
#crate_::traits::CrateVersion { | ||
major: #major_version, | ||
minor: #minor_version, | ||
patch: #patch_version, | ||
} | ||
}) | ||
} |
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