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use crate::prelude::*;
use casper_types::bytesrepr::FromBytes;
use casper_types::{CLTyped, RuntimeArgs, U512};
use serde::{Deserialize, Serialize};
/// Represents a call definition, which includes the method name, runtime arguments, attached value, and mutability flag.
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct CallDef {
entry_point: String,
args: RuntimeArgs,
amount: U512,
is_mut: bool
}
impl CallDef {
/// Creates a new `CallDef` instance with the given method name and runtime arguments.
///
/// # Arguments
///
/// * `method` - The method name.
/// * `is_mut` - Indicates if the call is mutable.
/// * `args` - The runtime arguments.
///
/// # Example
///
/// ```
/// # use odra_core::CallDef;
/// # use casper_types::RuntimeArgs;
/// let method = "my_method";
/// let args = RuntimeArgs::new();
/// let call_def = CallDef::new(method, false, args);
/// ```
pub fn new<T: ToString>(method: T, is_mut: bool, args: RuntimeArgs) -> Self {
CallDef {
entry_point: method.to_string(),
args,
amount: U512::zero(),
is_mut
}
}
/// Sets the attached value for the `CallDef` instance.
///
/// # Arguments
///
/// * `amount` - The attached value.
///
/// # Returns
///
/// The modified `CallDef` instance.
///
/// # Example
///
/// ```
/// # use odra_core::CallDef;
/// # use casper_types::RuntimeArgs;
/// # use casper_types::U512;
/// let call_def = CallDef::new("my_method", false, RuntimeArgs::new())
/// .with_amount(U512::from(100));
/// ```
pub fn with_amount(mut self, amount: U512) -> Self {
self.amount = amount;
self
}
/// Returns a reference to the entry point name of the `CallDef` instance.
pub fn entry_point(&self) -> &str {
&self.entry_point
}
/// Returns the attached value of the `CallDef` instance.
pub fn amount(&self) -> U512 {
self.amount
}
/// Returns a reference to the runtime arguments of the `CallDef` instance.
pub fn args(&self) -> &RuntimeArgs {
&self.args
}
/// Retrieves a value from the runtime arguments of the `CallDef` instance.
///
/// # Arguments
///
/// * `name` - The name of the value to retrieve.
///
/// # Returns
///
/// An `Option` containing the retrieved value, or `None` if the value does not exist or cannot be converted to the specified type.
///
/// # Example
///
/// ```
/// # use odra_core::CallDef;
/// # use casper_types::{CLTyped, bytesrepr::FromBytes, RuntimeArgs};
/// let call_def = CallDef::new("my_method", false, RuntimeArgs::new());
/// let value: Option<u32> = call_def.get("my_value");
/// ```
pub fn get<T: CLTyped + FromBytes>(&self, name: &str) -> Option<T> {
self.args.get(name).and_then(|v| v.clone().into_t().ok())
}
/// Returns whether the call mutates the state.
pub fn is_mut(&self) -> bool {
self.is_mut
}
}
#[cfg(test)]
mod test {
use crate::CallDef;
use casper_types::{runtime_args, RuntimeArgs};
#[test]
fn test_get_arg() {
let args = runtime_args! {
"my_value" => 42u32
};
let call_def = CallDef::new("my_method", false, args);
let value: Option<u32> = call_def.get("my_value");
assert_eq!(value, Some(42u32));
let value: Option<u32> = call_def.get("your_value");
assert_eq!(value, None);
}
#[test]
fn test_is_mut() {
let call_def = CallDef::new("my_method", false, RuntimeArgs::new());
assert!(!call_def.is_mut());
let call_def = CallDef::new("my_method", true, RuntimeArgs::new());
assert!(call_def.is_mut());
}
}