Struct ErrorData 

pub struct ErrorData { /* private fields */ }

RAII wrapper for a duckdb_error_data handle.

Automatically destroyed when dropped. Carries a structured error category (DuckDbErrorType) and a human-readable message.

Implements Display and std::error::Error, and converts into ExtensionError via From (or into_extension_error) so it can be propagated with ?.

Implementations

impl ErrorData

pub fn new(error_type: DuckDbErrorType, message: &str) -> Self

Creates a new structured error with the given category and message.

If message contains an interior null byte it is truncated at that point.

pub const unsafe fn from_raw(raw: duckdb_error_data) -> Self

Wraps a raw duckdb_error_data handle, taking ownership.

Safety

raw must be a duckdb_error_data returned by a DuckDB API call (it may be null). The caller must not destroy the handle after this call.

pub const fn as_raw(&self) -> duckdb_error_data

Returns the raw handle without consuming the ErrorData.

pub const fn is_null(&self) -> bool

Returns true if the underlying handle is null.

pub fn has_error(&self) -> bool

Returns true if this handle represents an actual error.

pub fn error_type(&self) -> DuckDbErrorType

Returns the error category.

pub fn message(&self) -> Option<String>

Returns the error message, or None if the handle is null or the message is not valid UTF-8.

The returned string is owned by DuckDB and copied into a Rust String.

pub fn into_extension_error(self) -> ExtensionError

Consumes the ErrorData and converts it into an ExtensionError.

Useful for propagating a structured DuckDB error through ?.

pub const fn into_raw(self) -> duckdb_error_data

Consumes the ErrorData and returns the raw handle.

The caller takes ownership and must call duckdb_destroy_error_data.

Trait Implementations

impl Debug for ErrorData

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ErrorData

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for ErrorData

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl Error for ErrorData

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<ErrorData> for ExtensionError

fn from(err: ErrorData) -> Self

Converts to this type from the input type.