ethers-rs/ethers-contract/ethers-contract-abigen/src/contract/common.rs

78 lines
2.7 KiB
Rust

use super::{util, Context};
use proc_macro2::TokenStream;
use quote::quote;
use super::util::{ethers_contract_crate, ethers_core_crate, ethers_providers_crate};
pub(crate) fn imports(name: &str) -> TokenStream {
let doc = util::expand_doc(&format!("{} was auto-generated with ethers-rs Abigen. More information at: https://github.com/gakonst/ethers-rs", name));
let ethers_core = ethers_core_crate();
let ethers_providers = ethers_providers_crate();
let ethers_contract = ethers_contract_crate();
quote! {
#![allow(clippy::enum_variant_names)]
#![allow(dead_code)]
#![allow(clippy::type_complexity)]
#![allow(unused_imports)]
#doc
use std::sync::Arc;
use #ethers_core::{
abi::{Abi, Token, Detokenize, InvalidOutputType, Tokenizable},
types::*, // import all the types so that we can codegen for everything
};
use #ethers_contract::{Contract, builders::{ContractCall, Event}, Lazy};
use #ethers_providers::Middleware;
}
}
/// Generates the static `Abi` constants and the contract struct
pub(crate) fn struct_declaration(cx: &Context, abi_name: &proc_macro2::Ident) -> TokenStream {
let name = &cx.contract_name;
let abi = &cx.abi_str;
let ethers_core = ethers_core_crate();
let ethers_providers = ethers_providers_crate();
let ethers_contract = ethers_contract_crate();
let abi_parse = if !cx.human_readable {
quote! {
pub static #abi_name: #ethers_contract::Lazy<#ethers_core::abi::Abi> = #ethers_contract::Lazy::new(|| serde_json::from_str(#abi)
.expect("invalid abi"));
}
} else {
quote! {
pub static #abi_name: #ethers_contract::Lazy<#ethers_core::abi::Abi> = #ethers_contract::Lazy::new(|| #ethers_core::abi::parse_abi_str(#abi)
.expect("invalid abi"));
}
};
quote! {
// Inline ABI declaration
#abi_parse
// Struct declaration
#[derive(Clone)]
pub struct #name<M>(#ethers_contract::Contract<M>);
// Deref to the inner contract in order to access more specific functions functions
impl<M> std::ops::Deref for #name<M> {
type Target = #ethers_contract::Contract<M>;
fn deref(&self) -> &Self::Target { &self.0 }
}
impl<M: #ethers_providers::Middleware> std::fmt::Debug for #name<M> {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
f.debug_tuple(stringify!(#name))
.field(&self.address())
.finish()
}
}
}
}