sim_expr_tree_core/
error.rs

1use crate::{CellId, DirId, GeneratedNameKind, NamespaceName};
2
3/// Typed failures for backend-neutral expression-tree namespace records.
4#[derive(Clone, Debug, PartialEq, Eq)]
5pub enum NamespaceError {
6    /// An id constructor received empty text.
7    EmptyId {
8        /// The id family being constructed.
9        kind: &'static str,
10    },
11    /// A child name is not legal as a canonical Table path segment.
12    IllegalName(String),
13    /// A parent directory is unknown to this namespace.
14    MissingDir(DirId),
15    /// A cell is unknown to this namespace.
16    MissingCell(CellId),
17    /// A directory is unknown to this namespace.
18    MissingDirRecord(DirId),
19    /// A child name is already occupied under the parent directory.
20    NameCollision {
21        /// The parent directory containing the conflicting name.
22        parent: DirId,
23        /// The conflicting child name.
24        name: NamespaceName,
25    },
26    /// A cell record cannot be created without a durable name reservation.
27    MissingReservation {
28        /// The parent directory for the requested create.
29        parent: DirId,
30        /// The child name that was not reserved.
31        name: NamespaceName,
32    },
33    /// A recovered generated-name counter is behind durable namespace state.
34    CounterCorruption {
35        /// The parent directory whose counter is corrupt.
36        parent: DirId,
37        /// The generated-name family whose counter is corrupt.
38        kind: GeneratedNameKind,
39        /// The occupied candidate produced by the corrupt counter.
40        candidate: NamespaceName,
41    },
42    /// Another writer lane is already active.
43    WriterAlreadyActive,
44    /// The caller supplied no valid writer lane.
45    InvalidWriterLane,
46    /// The root directory cannot be renamed or moved.
47    RootDirCannotMove,
48    /// A directory cannot be moved below itself.
49    DirMoveCycle {
50        /// The directory being moved.
51        dir: DirId,
52        /// The requested new parent.
53        new_parent: DirId,
54    },
55    /// A directory must be empty before it can be deleted.
56    DirNotEmpty(DirId),
57}
sim_expr_tree_core/error.rs

sim_expr_tree_core/
error.rs
