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#![allow(dead_code)]
#![allow(unused_imports)]
#![deny(missing_docs, unsafe_code)]
#[cfg(test)]
#[allow(missing_docs)]
#[macro_use]
#[path = "test/macros.rs"]
mod test_macros;
mod contract;
use contract::Context;
mod rustfmt;
mod source;
mod util;
pub use ethers_core::types::Address;
pub use source::Source;
pub use util::{ethers_contract_crate, ethers_core_crate, parse_address};
use anyhow::Result;
use proc_macro2::TokenStream;
use std::{collections::HashMap, fs::File, io::Write, path::Path};
pub struct Abigen {
abi_source: Source,
contract_name: String,
method_aliases: HashMap<String, String>,
event_derives: Vec<String>,
rustfmt: bool,
}
impl Abigen {
pub fn new<S: AsRef<str>>(contract_name: &str, abi_source: S) -> Result<Self> {
let abi_source = abi_source.as_ref().parse()?;
Ok(Self {
abi_source,
contract_name: contract_name.to_owned(),
method_aliases: HashMap::new(),
event_derives: Vec::new(),
rustfmt: true,
})
}
pub fn add_method_alias<S1, S2>(mut self, signature: S1, alias: S2) -> Self
where
S1: Into<String>,
S2: Into<String>,
{
self.method_aliases.insert(signature.into(), alias.into());
self
}
pub fn rustfmt(mut self, rustfmt: bool) -> Self {
self.rustfmt = rustfmt;
self
}
pub fn add_event_derive<S>(mut self, derive: S) -> Self
where
S: Into<String>,
{
self.event_derives.push(derive.into());
self
}
pub fn generate(self) -> Result<ContractBindings> {
let rustfmt = self.rustfmt;
let tokens = Context::expand(self)?;
Ok(ContractBindings { tokens, rustfmt })
}
}
pub struct ContractBindings {
tokens: TokenStream,
rustfmt: bool,
}
impl ContractBindings {
pub fn write<W>(&self, mut w: W) -> Result<()>
where
W: Write,
{
let source = {
let raw = self.tokens.to_string();
if self.rustfmt {
rustfmt::format(&raw).unwrap_or(raw)
} else {
raw
}
};
w.write_all(source.as_bytes())?;
Ok(())
}
pub fn write_to_file<P>(&self, path: P) -> Result<()>
where
P: AsRef<Path>,
{
let file = File::create(path)?;
self.write(file)
}
pub fn into_tokens(self) -> TokenStream {
self.tokens
}
}