Enum InterpreterWarning 

pub enum InterpreterWarning {
    UnsupportedFont,
    ImageDecodeFailure,
    StreamTooLarge {
        observed: u64,
        limit: u64,
    },
    NestingTooDeep {
        limit: u32,
    },
    UnresolvedAnnotationAppearance,
}

Warnings that can occur while interpreting a PDF file.

Variants

UnsupportedFont

An unsupported font kind was encountered.

Currently, only CID fonts with non-identity encoding are unsupported.

ImageDecodeFailure

An image failed to decode.

StreamTooLarge

A stream exceeded the configured max_stream_bytes cap during image decode. Must not be silently discarded — propagate as LimitError::StreamTooLarge / Error::ResourceLimitExceeded.

Both fields are u64 so the variant remains Copy.

Fields

observed: u64

Observed decompressed size in bytes.

limit: u64

Configured limit in bytes.

NestingTooDeep

Content stream nesting hit MAX_NESTED_INTERPRETATION_DEPTH and the rest of that branch was not interpreted (#318).

Reaching this means paint is MISSING from the page: a caller that renders a thumbnail may not care, one that rasterises for archival should. It was a warn! line only, which a library embedder never sees – the depth bound turns a crash into a silent omission, and a silent omission is exactly what a warning channel is for.

Fields

limit: u32

The limit that was hit.

UnresolvedAnnotationAppearance

An annotation has an AP dictionary, but its normal appearance could not be selected or loaded, so the annotation was not drawn.

Trait Implementations

impl Clone for InterpreterWarning

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for InterpreterWarning

impl Debug for InterpreterWarning

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

Formats the value using the given formatter.