language-servers/roc
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cleanup

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This commit is contained in:
Folkert 2021-07-10 23:49:24 +02:00
parent e05753afd8
commit 78309f2607
3 changed files with 9 additions and 6 deletions
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9
compiler/mono/src/decision_tree.rs
View file

@ -228,13 +228,13 @@ fn to_decision_tree(raw_branches: Vec<Branch>) -> DecisionTree {
// get the `_decision_tree` without cloning // get the `_decision_tree` without cloning
decision_edges.pop().unwrap().1 decision_edges.pop().unwrap().1
} }
(_, []) => helper(path, decision_edges, None), (_, []) => break_out_guard(path, decision_edges, None),
([], _) => { ([], _) => {
// should be guaranteed by the patterns // should be guaranteed by the patterns
debug_assert!(!fallback.is_empty()); debug_assert!(!fallback.is_empty());
to_decision_tree(fallback) to_decision_tree(fallback)
} }
(_, _) => helper( (_, _) => break_out_guard(
path, path,
decision_edges, decision_edges,
Some(Box::new(to_decision_tree(fallback))), Some(Box::new(to_decision_tree(fallback))),
@ -244,7 +244,8 @@ fn to_decision_tree(raw_branches: Vec<Branch>) -> DecisionTree {
} }
} }
fn helper<'a>( /// Give a guard it's own Decision
fn break_out_guard<'a>(
path: Vec<PathInstruction>, path: Vec<PathInstruction>,
mut edges: Vec<(GuardedTest<'a>, DecisionTree<'a>)>, mut edges: Vec<(GuardedTest<'a>, DecisionTree<'a>)>,
default: Option<Box<DecisionTree<'a>>>, default: Option<Box<DecisionTree<'a>>>,
@ -261,7 +262,7 @@ fn helper<'a>(
Some(index) => { Some(index) => {
let (a, b) = edges.split_at_mut(index + 1); let (a, b) = edges.split_at_mut(index + 1);
let new_default = helper(path.clone(), b.to_vec(), default); let new_default = break_out_guard(path.clone(), b.to_vec(), default);
let mut left = a.to_vec(); let mut left = a.to_vec();
let guard = left.pop().unwrap(); let guard = left.pop().unwrap();

2
compiler/mono/src/ir.rs
View file

@ -5098,6 +5098,8 @@ fn from_can_when<'a>(
let new_guard_stmt = let new_guard_stmt =
store_pattern(env, procs, layout_cache, &pattern, cond_symbol, guard_stmt); store_pattern(env, procs, layout_cache, &pattern, cond_symbol, guard_stmt);
dbg!(symbol);
( (
pattern, pattern,
Guard::Guard { Guard::Guard {

4
compiler/test_gen/src/gen_tags.rs
View file

@ -510,8 +510,8 @@ fn if_guard_multiple() {
f = \n -> f = \n ->
when Identity n 0 is when Identity n 0 is
Identity x _ if x == 0 -> x + 0 Identity x _ if x == 0 -> x + 0
Identity x _ if x == 1 -> x + 0 # Identity x _ if x == 1 -> x + 0
Identity x _ if x == 2 -> x + 0 # Identity x _ if x == 2 -> x + 0
Identity x _ -> x - x Identity x _ -> x - x
{ a: f 0, b: f 1, c: f 2, d: f 4 } { a: f 0, b: f 1, c: f 2, d: f 4 }