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have the repl eval named defs

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Richard Feldman 2022-10-30 03:58:44 -04:00
parent 4d8a3ba3d7
commit 08cf8e727f
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1 changed files with 15 additions and 10 deletions
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25
crates/repl_cli/src/repl_state.rs
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@ -110,9 +110,13 @@ impl ReplState {
pub fn eval_and_format<'a>(&mut self, src: &str) -> String {
let arena = Bump::new();
let mut opt_var_name;
let src = match parse_src(&arena, src) {
ParseOutcome::Expr(_) => src,
ParseOutcome::Expr(_) => {
opt_var_name = None;
src
}
ParseOutcome::ValueDef(value_def) => {
match value_def {
ValueDef::Annotation(
@ -155,10 +159,10 @@ impl ReplState {
..
} => {
self.add_past_def(ident.to_string(), src.to_string());
opt_var_name = Some(ident.to_string());
// Return early without running eval, since neither standalone annotations
// nor pending potential AnnotatedBody exprs can be evaluated as expressions.
return String::new();
// Eval the body of the def by adding a lookup to it
*ident
}
ValueDef::Annotation(_, _)
| ValueDef::Body(_, _)
@ -190,16 +194,17 @@ impl ReplState {
// Record e.g. "val1" as a past def, unless our input was exactly the name of
// an existing identifer (e.g. I just typed "val1" into the prompt - there's no
// need to reassign "val1" to "val2" just because I wanted to see what its value was!)
let opt_var_name;
let (output, problems) = match self.past_def_idents.get(src.trim()) {
let (output, problems) = match opt_var_name
.or_else(|| self.past_def_idents.get(src.trim()).cloned())
{
Some(existing_ident) => {
opt_var_name = Some(existing_ident.to_string());
opt_var_name = Some(existing_ident);
gen_and_eval_llvm(&self.with_past_defs(src), Triple::host(), OptLevel::Normal)
gen_and_eval_llvm(&self.with_past_defs(&src), Triple::host(), OptLevel::Normal)
}
None => {
let (output, problems) =
gen_and_eval_llvm(&self.with_past_defs(src), Triple::host(), OptLevel::Normal);
gen_and_eval_llvm(&self.with_past_defs(&src), Triple::host(), OptLevel::Normal);
// Don't persist defs that have compile errors
if problems.errors.is_empty() {