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https://github.com/HigherOrderCO/Bend.git
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Reorder local defs lifting
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parent
945bed6872
commit
0cd4386f32
@ -24,17 +24,15 @@ impl Stmt {
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match self {
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Stmt::LocalDef { .. } => {
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let Stmt::LocalDef { mut def, mut nxt } = std::mem::take(self) else { unreachable!() };
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let children = def.lift_local_defs(gen)?;
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nxt.lift_local_defs(parent, defs, gen)?;
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let local_name = Name::new(format!("{}__local_{}_{}", parent, gen, def.name));
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def.body.lift_local_defs(&local_name, defs, gen)?;
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nxt.lift_local_defs(parent, defs, gen)?;
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*gen += 1;
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let (r#use, mut def, fvs) = gen_use(local_name.clone(), *def, nxt)?;
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*self = r#use;
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apply_closure(&mut def, fvs);
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defs.extend(children);
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defs.insert(def.name.clone(), def);
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Ok(())
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}
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@ -122,8 +120,8 @@ fn gen_use(
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fn apply_closure(def: &mut fun::Definition, fvs: Vec<Name>) {
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let rule = &mut def.rules[0];
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let mut n_pats = fvs.into_iter().map(|x| Pattern::Var(Some(x))).collect::<Vec<_>>();
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let mut captured = fvs.into_iter().map(|x| Pattern::Var(Some(x))).collect::<Vec<_>>();
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let rule_pats = std::mem::take(&mut rule.pats);
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n_pats.extend(rule_pats);
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rule.pats = n_pats;
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captured.extend(rule_pats);
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rule.pats = captured;
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}
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10
tests/golden_tests/desugar_file/local_def_shadow.bend
Normal file
10
tests/golden_tests/desugar_file/local_def_shadow.bend
Normal file
@ -0,0 +1,10 @@
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def main:
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def A():
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def B():
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return 0
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return B()
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def A():
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def B():
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return 1
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return B()
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return A()
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13
tests/snapshots/desugar_file__local_def_shadow.bend.snap
Normal file
13
tests/snapshots/desugar_file__local_def_shadow.bend.snap
Normal file
@ -0,0 +1,13 @@
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---
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source: tests/golden_tests.rs
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input_file: tests/golden_tests/desugar_file/local_def_shadow.bend
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---
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(main__local_0_A__local_0_B) = 0
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(main__local_1_A__local_1_B) = 1
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(main__local_1_A) = λa a
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(main__local_0_A) = λa a
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(main) = (main__local_1_A main__local_1_A__local_1_B)
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@ -2,10 +2,10 @@
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source: tests/golden_tests.rs
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input_file: tests/golden_tests/desugar_file/main_aux.bend
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---
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(aux__local_0_aux) = λa λb (+ b a)
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(main__local_0_aux__local_0_aux__local_0_aux) = λa λb (+ b a)
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(aux__local_1_aux) = λa λb λc (a b c)
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(main__local_0_aux__local_0_aux) = λa λb λc (a b c)
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(main__local_2_aux) = λa λb λc λd (b a c d)
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(main__local_0_aux) = λa λb λc λd (a b c d)
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(main) = (main__local_2_aux aux__local_0_aux aux__local_1_aux 89 2)
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(main) = (main__local_0_aux main__local_0_aux__local_0_aux main__local_0_aux__local_0_aux__local_0_aux 89 2)
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