proof_of_sql_parser/posql_time/
error.rs

1use alloc::string::{String, ToString};
2use serde::{Deserialize, Serialize};
3use snafu::Snafu;
4
5/// Errors related to time operations, including timezone and timestamp conversions.
6#[derive(Snafu, Debug, Eq, PartialEq, Serialize, Deserialize)]
7pub enum PoSQLTimestampError {
8    /// Error when the timezone string provided cannot be parsed into a valid timezone.
9    #[snafu(display("invalid timezone string: {timezone}"))]
10    InvalidTimezone {
11        /// The invalid timezone
12        timezone: String,
13    },
14
15    /// Error indicating an invalid timezone offset was provided.
16    #[snafu(display("invalid timezone offset"))]
17    InvalidTimezoneOffset,
18
19    /// Indicates a failure to convert between different representations of time units.
20    #[snafu(display("Invalid time unit"))]
21    InvalidTimeUnit {
22        /// The underlying error
23        error: String,
24    },
25
26    /// The local time does not exist because there is a gap in the local time.
27    /// This variant may also be returned if there was an error while resolving the local time,
28    /// caused by for example missing time zone data files, an error in an OS API, or overflow.
29    #[snafu(display("Local time does not exist because there is a gap in the local time"))]
30    LocalTimeDoesNotExist,
31
32    /// The local time is ambiguous because there is a fold in the local time.
33    /// This variant contains the two possible results, in the order (earliest, latest).
34    #[snafu(display("Unix timestamp is ambiguous because there is a fold in the local time."))]
35    Ambiguous {
36        /// The underlying error
37        error: String,
38    },
39
40    /// Represents a catch-all for parsing errors not specifically covered by other variants.
41    #[snafu(display("Timestamp parsing error: {error}"))]
42    ParsingError {
43        /// The underlying error
44        error: String,
45    },
46
47    /// Represents a failure to parse a provided time unit precision value, `PoSQL` supports
48    /// Seconds, Milliseconds, Microseconds, and Nanoseconds
49    #[snafu(display("Unsupported precision for timestamp: {error}"))]
50    UnsupportedPrecision {
51        /// The underlying error
52        error: String,
53    },
54}
55
56// This exists because TryFrom<DataType> for ColumnType error is String
57impl From<PoSQLTimestampError> for String {
58    fn from(error: PoSQLTimestampError) -> Self {
59        error.to_string()
60    }
61}
proof_of_sql_parser/posql_time/error.rs

proof_of_sql_parser/posql_time/
error.rs
