ink_macro/
chain_extension.rs

1// Copyright (C) Use Ink (UK) Ltd.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use ink_codegen::generate_code;
16use proc_macro2::TokenStream as TokenStream2;
17use syn::Result;
18
19pub fn generate(attr: TokenStream2, input: TokenStream2) -> TokenStream2 {
20    match generate_or_err(attr, input) {
21        Ok(tokens) => tokens,
22        Err(err) => err.to_compile_error(),
23    }
24}
25
26pub fn generate_or_err(attr: TokenStream2, input: TokenStream2) -> Result<TokenStream2> {
27    let chain_extension = ink_ir::ChainExtension::new(attr, input)?;
28    Ok(generate_code(&chain_extension))
29}