63 lines
1.7 KiB
Rust
63 lines
1.7 KiB
Rust
// Copyright 2015 Matthew Collins
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use std::marker::PhantomData;
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use std::collections::HashMap;
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use std::any::Any;
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pub struct CVar<T: Sized + Any + 'static> {
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pub name: &'static str,
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pub ty: PhantomData<T>,
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pub description: &'static str,
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pub mutable: bool,
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pub serializable: bool,
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pub default: &'static Fn() -> T,
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}
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impl Var for CVar<String> {}
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pub trait Var {
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}
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pub struct Console {
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vars: HashMap<&'static str, Box<Var>>,
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var_values: HashMap<&'static str, Box<Any>>,
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}
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impl Console {
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pub fn new() -> Console {
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Console {
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vars: HashMap::new(),
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var_values: HashMap::new(),
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}
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}
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pub fn register<T: Sized + Any>(&mut self, var: CVar<T>) where CVar<T> : Var {
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if self.vars.contains_key(var.name) {
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panic!("Key registered twice {}", var.name);
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}
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self.var_values.insert(var.name, Box::new((var.default)()));
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self.vars.insert(var.name, Box::new(var));
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}
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pub fn get<T: Sized + Any>(&self, var: CVar<T>) -> &T where CVar<T> : Var {
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// Should never fail
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self.var_values.get(var.name).unwrap().downcast_ref::<T>().unwrap()
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}
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pub fn set<T: Sized + Any>(&mut self, var: CVar<T>, val: T) where CVar<T> : Var {
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self.var_values.insert(var.name, Box::new(val));
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}
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} |