bjoernager/rust
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Require any function with a tait in its signature to actually constrain a hidden type

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This commit is contained in:
Oli Scherer 2024-06-10 16:17:38 +00:00
parent 39e7bf6826
commit 0bc2001879
116 changed files with 1524 additions and 708 deletions
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27
compiler/rustc_data_structures/src/obligation_forest/mod.rs
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@ -146,8 +146,6 @@ pub enum ProcessResult<O, E> {
#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
struct ObligationTreeId(usize);
type ObligationTreeIdGenerator = impl Iterator<Item = ObligationTreeId>;
pub struct ObligationForest<O: ForestObligation> {
/// The list of obligations. In between calls to [Self::process_obligations],
/// this list only contains nodes in the `Pending` or `Waiting` state.
@ -310,18 +308,25 @@ pub struct Error<O, E> {
pub backtrace: Vec<O>,
}
impl<O: ForestObligation> ObligationForest<O> {
pub fn new() -> ObligationForest<O> {
ObligationForest {
nodes: vec![],
done_cache: Default::default(),
active_cache: Default::default(),
reused_node_vec: vec![],
obligation_tree_id_generator: (0..).map(ObligationTreeId),
error_cache: Default::default(),
mod helper {
use super::*;
pub type ObligationTreeIdGenerator = impl Iterator<Item = ObligationTreeId>;
impl<O: ForestObligation> ObligationForest<O> {
pub fn new() -> ObligationForest<O> {
ObligationForest {
nodes: vec![],
done_cache: Default::default(),
active_cache: Default::default(),
reused_node_vec: vec![],
obligation_tree_id_generator: (0..).map(ObligationTreeId),
error_cache: Default::default(),
}
}
}
}
use helper::*;
impl<O: ForestObligation> ObligationForest<O> {
/// Returns the total number of nodes in the forest that have not
/// yet been fully resolved.
pub fn len(&self) -> usize {