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Small one today, getting started was hard but glad I got a tiny bit done to continue the streak. Modifed follow-on data to be stored on Ctx itself and only pass an ID around so it can be on the return stack multiple times without wasting a lot of space.

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This commit is contained in:
Nathan Braswell
2024-01-04 01:15:42 -05:00
parent c15e857171
commit 1e59c8ed94
1 changed files with 10 additions and 6 deletions
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16
slj/src/lib.rs
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@@ -299,6 +299,7 @@ struct Ctx {
cont_count: BTreeMap<ID, i64>,
tracing: Option<Trace>,
traces: BTreeMap<ID, Trace>,
trace_resume_data: BTreeMap<ID, TraceBookkeeping>,
}
impl fmt::Display for Ctx {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
@@ -312,6 +313,7 @@ impl Ctx {
cont_count: BTreeMap::new(),
tracing: None,
traces: BTreeMap::new(),
trace_resume_data: BTreeMap::new(),
}
}
fn alloc_id(&mut self) -> ID {
@@ -334,7 +336,7 @@ impl Ctx {
// - tracing, Dynamic, non-tail - emit call
//
// inline call is slightly tricky, have to add our own Env accounting
fn trace_call(&mut self, call_len: usize, tmp_stack: &Vec<Rc<Form>>, nc: &Rc<Cont>) -> Option<(ID,TraceBookkeeping)> {
fn trace_call(&mut self, call_len: usize, tmp_stack: &Vec<Rc<Form>>, nc: &Rc<Cont>) -> Option<ID> {
// Needs to take and use parameters for mid-trace
// needs to guard on function called if non-constant
@@ -408,7 +410,8 @@ impl Ctx {
// probs just id and a Ctx member map to the full data
println!("Ending trace at call!");
println!("\t{}", trace);
let trace_data = (trace.id,trace.tbk.clone());
self.trace_resume_data.insert(trace.id, trace.tbk.clone());
let trace_data = trace.id;
self.traces.insert(trace.id, self.tracing.take().unwrap());
return Some(trace_data);
}
@@ -429,7 +432,7 @@ impl Ctx {
}
self.trace_drop(inline);
}
fn trace_call_end(&mut self, id: ID, follow_on_trace_data: Option<(ID,TraceBookkeeping)>) {
fn trace_call_end(&mut self, id: ID, follow_on_trace_data: Option<ID>) {
// associate with it or something
println!("tracing call end for {id}");
if let Some(trace) = &mut self.tracing {
@@ -441,7 +444,8 @@ impl Ctx {
}
}
if self.tracing.is_none() {
if let Some((follow_id,follow_tbk)) = follow_on_trace_data {
if let Some(follow_id) = follow_on_trace_data {
let follow_tbk = self.trace_resume_data.remove(&follow_id).unwrap();
println!("starting follow-on trace {follow_id}, {follow_tbk:?}");
let mut trace = Trace::follow_on(follow_id,follow_tbk);
trace.tbk.stack_const.push(false); // fix with actual, if this ends up being a
@@ -516,7 +520,7 @@ impl Ctx {
id: ID,
e: &Rc<Form>,
tmp_stack: &mut Vec<Rc<Form>>,
ret_stack: &mut Vec<(Rc<Form>, Rc<Cont>, Option<(ID,TraceBookkeeping)>)>) -> Result<Option<(Rc<Form>, Rc<Form>, Cont)>> {
ret_stack: &mut Vec<(Rc<Form>, Rc<Cont>, Option<ID>)>) -> Result<Option<(Rc<Form>, Rc<Form>, Cont)>> {
if self.trace_running() {
println!("Not playing back trace because recording trace");
return Ok(None); // can't trace while running a trace for now (we don't inline now anyway),
@@ -629,7 +633,7 @@ pub fn eval(f: Rc<Form>) -> Result<Rc<Form>> {
let mut e = Form::root_env();
let mut c = Cont::Eval { c: Rc::new(Cont::MetaRet) };
let mut ret_stack: Vec<(Rc<Form>, Rc<Cont>, Option<(ID,TraceBookkeeping)>)> = vec![];
let mut ret_stack: Vec<(Rc<Form>, Rc<Cont>, Option<ID>)> = vec![];
let mut tmp_stack: Vec<Rc<Form>> = vec![];
loop {