mantra_dex_std/common.rs
use cosmwasm_std::{Addr, Deps};
/// Validates a [String] address or returns the default address if the validation fails.
pub fn validate_addr_or_default(deps: &Deps, unvalidated: Option<String>, default: Addr) -> Addr {
unvalidated
.map_or_else(
|| Some(default.clone()),
|recv| match deps.api.addr_validate(&recv) {
Ok(validated) => Some(validated),
Err(_) => None,
},
)
.unwrap_or(default)
}