116 lines
3.1 KiB
Rust
116 lines
3.1 KiB
Rust
//! This is a basic representation of a contract ABI that does no post processing but contains the
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//! raw content of the ABI.
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#![allow(missing_docs)]
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use serde::{
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de::{MapAccess, SeqAccess, Visitor},
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Deserialize, Deserializer, Serialize,
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};
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/// Contract ABI as a list of items where each item can be a function, constructor or event
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pub struct RawAbi(Vec<Item>);
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impl IntoIterator for RawAbi {
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type Item = Item;
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type IntoIter = std::vec::IntoIter<Self::Item>;
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#[inline]
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fn into_iter(self) -> Self::IntoIter {
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self.0.into_iter()
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}
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}
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struct RawAbiVisitor;
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impl<'de> Visitor<'de> for RawAbiVisitor {
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type Value = RawAbi;
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fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
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formatter.write_str("a sequence or map with `abi` key")
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}
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fn visit_seq<A>(self, mut seq: A) -> Result<Self::Value, A::Error>
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where
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A: SeqAccess<'de>,
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{
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let mut vec = Vec::new();
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while let Some(element) = seq.next_element()? {
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vec.push(element);
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}
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Ok(RawAbi(vec))
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}
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fn visit_map<A>(self, mut map: A) -> Result<Self::Value, A::Error>
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where
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A: MapAccess<'de>,
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{
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let mut vec = None;
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while let Some(key) = map.next_key::<String>()? {
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if key == "abi" {
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vec = Some(RawAbi(map.next_value::<Vec<Item>>()?));
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} else {
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map.next_value::<serde::de::IgnoredAny>()?;
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}
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}
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vec.ok_or_else(|| serde::de::Error::missing_field("abi"))
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}
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}
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impl<'de> Deserialize<'de> for RawAbi {
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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
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where
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D: Deserializer<'de>,
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{
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deserializer.deserialize_any(RawAbiVisitor)
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}
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}
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#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct Item {
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#[serde(default)]
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pub inputs: Vec<Component>,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub state_mutability: Option<String>,
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#[serde(rename = "type")]
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pub type_field: String,
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#[serde(default, skip_serializing_if = "Option::is_none")]
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pub name: Option<String>,
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#[serde(default)]
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pub outputs: Vec<Component>,
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}
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/// Either
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#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
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pub struct Component {
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#[serde(rename = "internalType", default, skip_serializing_if = "Option::is_none")]
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pub internal_type: Option<String>,
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pub name: String,
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#[serde(rename = "type")]
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pub type_field: String,
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#[serde(default)]
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pub components: Vec<Component>,
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn can_parse_raw_abi() {
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const VERIFIER_ABI: &str = include_str!("../../tests/solidity-contracts/verifier_abi.json");
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let _ = serde_json::from_str::<RawAbi>(VERIFIER_ABI).unwrap();
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}
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#[test]
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fn can_parse_hardhat_raw_abi() {
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const VERIFIER_ABI: &str =
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include_str!("../../tests/solidity-contracts/verifier_abi_hardhat.json");
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let _ = serde_json::from_str::<RawAbi>(VERIFIER_ABI).unwrap();
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}
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}
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