Enum DynError 

pub enum DynError {
    ArityMismatch {
        expected: usize,
        got: usize,
    },
    Nullability {
        col: usize,
        path: String,
        index: usize,
        message: String,
    },
    TypeMismatch {
        col: usize,
        expected: DataType,
    },
    Builder {
        message: String,
    },
    Append {
        col: usize,
        message: String,
    },
}

Errors that can occur when appending dynamic rows/cells.

Variants

ArityMismatch

The number of cells in a row did not match the schema width.

Fields

expected: usize

Expected number of columns (schema width).

got: usize

Actual number of cells present in the provided row.

Nullability

Post-build nullability violation detected by the validator.

Fields

col: usize

Top-level column index where the violation occurred.

path: String

Dot-annotated path to the offending field (e.g., “struct_field.child[]”).

index: usize

Row or value index where the violation was found.

message: String

Message describing the violation.

TypeMismatch

A cell’s Rust value did not match the target Arrow DataType for a column.

Fields

col: usize

The zero-based column index where the mismatch occurred.

expected: DataType

The Arrow logical type expected for that column.

Builder

The underlying Arrow builder reported an error while appending a value.

Fields

message: String

Human-readable error from the underlying Arrow builder.

Append

Append failed at a specific column with a message.

Fields

col: usize

The zero-based column index where the builder failed.

message: String

Human-readable error message from the builder.

Implementations

impl DynError

pub fn at_col(self, col: usize) -> DynError

Add column context to a builder error.

Trait Implementations

impl Debug for DynError

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

Formats the value using the given formatter.

impl Display for DynError

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

Formats the value using the given formatter.

impl Error for DynError

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.