ink_codegen/generator/
env.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 crate::GenerateCode;
16use derive_more::From;
17use proc_macro2::TokenStream as TokenStream2;
18use quote::quote;
19
20/// Generates code for the ink! environment of the contract.
21#[derive(From)]
22pub struct Env<'a> {
23    contract: &'a ir::Contract,
24}
25
26impl GenerateCode for Env<'_> {
27    fn generate_code(&self) -> TokenStream2 {
28        let env = self.contract.config().env();
29        let storage_ident = self.contract.module().storage().ident();
30        quote! {
31            impl ::ink::env::ContractEnv for #storage_ident {
32                type Env = #env;
33            }
34
35            type Environment = <#storage_ident as ::ink::env::ContractEnv>::Env;
36
37            type AccountId = <<#storage_ident as ::ink::env::ContractEnv>::Env as ::ink::env::Environment>::AccountId;
38            type Balance = <<#storage_ident as ::ink::env::ContractEnv>::Env as ::ink::env::Environment>::Balance;
39            type Hash = <<#storage_ident as ::ink::env::ContractEnv>::Env as ::ink::env::Environment>::Hash;
40            type Timestamp = <<#storage_ident as ::ink::env::ContractEnv>::Env as ::ink::env::Environment>::Timestamp;
41            type BlockNumber = <<#storage_ident as ::ink::env::ContractEnv>::Env as ::ink::env::Environment>::BlockNumber;
42            type ChainExtension = <<#storage_ident as ::ink::env::ContractEnv>::Env as ::ink::env::Environment>::ChainExtension;
43            const MAX_EVENT_TOPICS: usize = <<#storage_ident as ::ink::env::ContractEnv>::Env as ::ink::env::Environment>::MAX_EVENT_TOPICS;
44            type EventRecord = <<#storage_ident as ::ink::env::ContractEnv>::Env as ::ink::env::Environment>::EventRecord;
45
46            type Address = ::ink::primitives::Address;
47        }
48    }
49}
ink_codegen/generator/env.rs

ink_codegen/generator/
env.rs
