Files
herolib/libwip/mcp_rhai/logic/templates/generic_wrapper.rs
2025-09-14 17:57:06 +02:00

132 lines
3.4 KiB
Rust

use std::collections::HashMap;
use rhai::{Dynamic, Map, Array};
/// Local wrapper trait for sal::rhai::ToRhai to avoid orphan rule violations
pub trait ToRhai {
/// Convert to a Rhai Dynamic value
fn to_rhai(&self) -> Dynamic;
}
// Implementation of ToRhai for Dynamic
impl ToRhai for Dynamic {
fn to_rhai(&self) -> Dynamic {
self.clone()
}
}
/// Generic trait for wrapping Rust functions to be used with Rhai
pub trait RhaiWrapper {
/// Wrap a function that takes ownership of self
fn wrap_consuming<F, R>(self, f: F) -> Dynamic
where
Self: Sized + Clone,
F: FnOnce(Self) -> R,
R: ToRhai;
/// Wrap a function that takes a mutable reference to self
fn wrap_mut<F, R>(&mut self, f: F) -> Dynamic
where
Self: Sized + Clone,
F: FnOnce(&mut Self) -> R,
R: ToRhai;
/// Wrap a function that takes an immutable reference to self
fn wrap<F, R>(&self, f: F) -> Dynamic
where
Self: Sized + Clone,
F: FnOnce(&Self) -> R,
R: ToRhai;
}
/// Implementation of RhaiWrapper for any type
impl<T> RhaiWrapper for T {
fn wrap_consuming<F, R>(self, f: F) -> Dynamic
where
Self: Sized + Clone,
F: FnOnce(Self) -> R,
R: ToRhai,
{
let result = f(self);
result.to_rhai()
}
fn wrap_mut<F, R>(&mut self, f: F) -> Dynamic
where
Self: Sized + Clone,
F: FnOnce(&mut Self) -> R,
R: ToRhai,
{
let result = f(self);
result.to_rhai()
}
fn wrap<F, R>(&self, f: F) -> Dynamic
where
Self: Sized + Clone,
F: FnOnce(&Self) -> R,
R: ToRhai,
{
let result = f(self);
result.to_rhai()
}
}
/// Convert a Rhai Map to a Rust HashMap
pub fn map_to_hashmap(map: &Map) -> HashMap<String, String> {
let mut result = HashMap::new();
for (key, value) in map.iter() {
let k = key.clone().to_string();
let v = value.clone().to_string();
if !k.is_empty() && !v.is_empty() {
result.insert(k, v);
}
}
result
}
/// Convert a HashMap<String, String> to a Rhai Map
pub fn hashmap_to_map(map: &HashMap<String, String>) -> Map {
let mut result = Map::new();
for (key, value) in map.iter() {
result.insert(key.clone().into(), Dynamic::from(value.clone()));
}
result
}
/// Convert a Rhai Array to a Vec of strings
pub fn array_to_vec_string(array: &Array) -> Vec<String> {
array.iter()
.filter_map(|item| {
let s = item.clone().to_string();
if !s.is_empty() { Some(s) } else { None }
})
.collect()
}
/// Helper function to convert Dynamic to Option<String>
pub fn dynamic_to_string_option(value: &Dynamic) -> Option<String> {
if value.is_string() {
Some(value.clone().to_string())
} else {
None
}
}
/// Helper function to convert Dynamic to Option<u32>
pub fn dynamic_to_u32_option(value: &Dynamic) -> Option<u32> {
if value.is_int() {
Some(value.as_int().unwrap() as u32)
} else {
None
}
}
/// Helper function to convert Dynamic to Option<&str> with lifetime management
pub fn dynamic_to_str_option<'a>(value: &Dynamic, storage: &'a mut String) -> Option<&'a str> {
if value.is_string() {
*storage = value.clone().to_string();
Some(storage.as_str())
} else {
None
}
}