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use std::fmt;
#[derive(Debug, Clone)]
pub struct AbiInput {
pub name: Option<String>,
pub r#type: String,
pub indexed: Option<bool>,
#[allow(dead_code)]
pub internal_type: Option<String>,
#[allow(dead_code)]
pub components: Option<Vec<AbiInput>>,
}
#[derive(Debug, Clone)]
pub struct AbiOutput {
pub name: Option<String>,
pub r#type: String,
#[allow(dead_code)]
pub internal_type: Option<String>,
#[allow(dead_code)]
pub components: Option<Vec<AbiOutput>>,
}
#[derive(Debug, Clone)]
pub struct AbiItem {
pub r#type: String,
pub name: Option<String>,
pub inputs: Option<Vec<AbiInput>>,
pub outputs: Option<Vec<AbiOutput>>,
pub state_mutability: Option<String>,
#[allow(dead_code)]
pub anonymous: Option<bool>,
#[allow(dead_code)]
pub payable: Option<bool>,
#[allow(dead_code)]
pub constant: Option<bool>,
}
impl fmt::Display for AbiItem {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let visibility = self.state_mutability.as_deref().unwrap_or("nonpayable");
let type_str = &self.r#type;
match type_str.as_str() {
"constructor" => {
let params = self
.inputs
.as_ref()
.map(|inputs| {
inputs
.iter()
.map(|p| {
if let Some(name) = &p.name {
format!("{} {}", p.r#type, name)
} else {
p.r#type.clone()
}
})
.collect::<Vec<_>>()
.join(", ")
})
.unwrap_or_default();
write!(f, "constructor({params})")
}
"event" => {
let params = self
.inputs
.as_ref()
.map(|inputs| {
inputs
.iter()
.map(|p| {
let indexed = if p.indexed.unwrap_or(false) {
" indexed"
} else {
""
};
if let Some(name) = &p.name {
format!("{}{} {}", p.r#type, indexed, name)
} else {
format!("{}{}", p.r#type, indexed)
}
})
.collect::<Vec<_>>()
.join(", ")
})
.unwrap_or_default();
write!(
f,
"event {}({})",
self.name.as_ref().unwrap_or(&String::new()),
params
)
}
"function" => {
let params = self
.inputs
.as_ref()
.map(|inputs| {
inputs
.iter()
.map(|p| {
if let Some(name) = &p.name {
format!("{} {}", p.r#type, name)
} else {
p.r#type.clone()
}
})
.collect::<Vec<_>>()
.join(", ")
})
.unwrap_or_default();
let returns = if let Some(outputs) = &self.outputs {
if !outputs.is_empty() {
let output_params = outputs
.iter()
.map(|o| {
let has_name = o.name.as_ref().is_some_and(|n| !n.is_empty());
if has_name {
format!("{} {}", o.r#type, o.name.as_ref().unwrap())
} else {
o.r#type.clone()
}
})
.collect::<Vec<_>>()
.join(", ");
format!(" returns ({output_params})")
} else {
String::new()
}
} else {
String::new()
};
let vis = if visibility != "nonpayable" {
format!(" {visibility}")
} else {
String::new()
};
write!(
f,
"function {}({}){}{}",
self.name.as_ref().unwrap_or(&String::new()),
params,
vis,
returns
)
}
"fallback" => {
let payable = if visibility == "payable" {
" payable"
} else {
""
};
write!(f, "fallback() external{payable}")
}
"receive" => {
write!(f, "receive() external payable")
}
_ => {
write!(f, "unknown")
}
}
}
}