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minor improvements

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Anton-4 2024-07-08 14:11:22 +02:00
parent 2cad4b3e21
commit 6b2d2e3406
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2 changed files with 8 additions and 3 deletions
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6
crates/compiler/can/src/suffixed.rs
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@ -15,12 +15,14 @@ thread_local! {
static SUFFIXED_ANSWER_COUNTER: Cell<usize> = const { Cell::new(0) };
}
/// Generates a unique identifier, useful for intermediate items during desugaring
/// Generates a unique identifier, useful for intermediate items during desugaring.
fn next_unique_suffixed_ident() -> String {
SUFFIXED_ANSWER_COUNTER.with(|counter| {
let count = counter.get();
counter.set(count + 1);
// # is used as prefix because it's impossible for code authors to define names like this.
// This makes it easy to see this identifier was created by the compiler.
format!("#!a{}", count)
})
}
@ -56,7 +58,7 @@ fn init_unwrapped_err<'a>(
}
None => {
// Provide an intermediate answer expression and pattern when unwrapping a
// (sub) expression
// (sub) expression.
// e.g. `x = foo (bar!)` unwraps to `x = Task.await (bar) \#!a0 -> foo #!a0`
let answer_ident = arena.alloc(next_unique_suffixed_ident());
let sub_new = arena.alloc(Loc::at(