83 lines
1.9 KiB
Rust

#[derive(Clone,Debug)]
pub struct TimedInstruction<I,T>{
pub time:T,
pub instruction:I,
}
impl<I,T> TimedInstruction<I,T>{
#[inline]
pub fn set_time<T2>(self,new_time:T2)->TimedInstruction<I,T2>{
TimedInstruction{
time:new_time,
instruction:self.instruction,
}
}
}
/// Ensure all emitted instructions are processed before consuming external instructions
pub trait InstructionEmitter<I>{
type Time;
fn next_instruction(&self,time_limit:Self::Time)->Option<TimedInstruction<I,Self::Time>>;
}
/// Apply an atomic state update
pub trait InstructionConsumer<I>{
type Time;
fn process_instruction(&mut self,instruction:TimedInstruction<I,Self::Time>);
}
/// If the object produces its own instructions, allow exhaustively feeding them back in
pub trait InstructionFeedback<I,T>:InstructionEmitter<I,Time=T>+InstructionConsumer<I,Time=T>
where
T:Copy,
{
#[inline]
fn process_exhaustive(&mut self,time_limit:T){
while let Some(instruction)=self.next_instruction(time_limit){
self.process_instruction(instruction);
}
}
}
impl<I,T,X> InstructionFeedback<I,T> for X
where
T:Copy,
X:InstructionEmitter<I,Time=T>+InstructionConsumer<I,Time=T>,
{}
//PROPER PRIVATE FIELDS!!!
pub struct InstructionCollector<I,T>{
time:T,
instruction:Option<I>,
}
impl<I,T> InstructionCollector<I,T>{
#[inline]
pub const fn new(time:T)->Self{
Self{
time,
instruction:None
}
}
#[inline]
pub fn take(self)->Option<TimedInstruction<I,T>>{
//STEAL INSTRUCTION AND DESTROY INSTRUCTIONCOLLECTOR
self.instruction.map(|instruction|TimedInstruction{
time:self.time,
instruction
})
}
}
impl<I,T:Copy> InstructionCollector<I,T>{
#[inline]
pub const fn time(&self)->T{
self.time
}
}
impl<I,T:PartialOrd> InstructionCollector<I,T>{
#[inline]
pub fn collect(&mut self,instruction:Option<TimedInstruction<I,T>>){
if let Some(ins)=instruction{
if ins.time<self.time{
self.time=ins.time;
self.instruction=Some(ins.instruction);
}
}
}
}