Enum V8Error 

pub enum V8Error {
    Truncated {
        offset: usize,
        needed: usize,
        available: usize,
    },
    BadVersion {
        offset: usize,
        found: u8,
    },
    UnsupportedTag {
        offset: usize,
        tag: u8,
    },
    HostObject {
        offset: usize,
        blink_tag: u8,
    },
    BadReference {
        offset: usize,
        id: u64,
    },
    BadVarint {
        offset: usize,
    },
    OddUtf16 {
        offset: usize,
        len: usize,
    },
    BadKey {
        offset: usize,
    },
    DepthCap {
        offset: usize,
        cap: usize,
    },
    NodeCap {
        cap: usize,
    },
    LengthCap {
        offset: usize,
        len: u64,
        cap: usize,
    },
}

A decode failure. Every arm names what failed and where (byte offset), and surfaces the offending value (tag byte / id) so an analyst can identify it — an “unknown” is never reported without the bytes that were actually there.

Variants

Truncated

Fewer bytes remained than the value required.

Fields

offset: usize

needed: usize

available: usize

BadVersion

The stream did not open with the 0xFF version tag.

Fields

offset: usize

found: u8

UnsupportedTag

A tag byte is not a value-introducing V8 serialization tag we decode.

Fields

offset: usize

tag: u8

HostObject

A kHostObject (\\) embedder value (Blink DOM type or a node typed-array delegate). Surfaced with the following Blink tag byte, not fabricated.

Fields

offset: usize

blink_tag: u8

BadReference

A kObjectReference pointed at an id that was never assigned.

Fields

offset: usize

id: u64

BadVarint

A varint ran past 10 bytes / would overflow u64.

Fields

offset: usize

OddUtf16

A kTwoByteString had an odd byte length (not whole UTF-16 units).

Fields

offset: usize

len: usize

BadKey

An object/map key was neither a string nor an integer.

Fields

offset: usize

DepthCap

Recursion depth exceeded V8Limits::max_depth (DoS guard).

Fields

offset: usize

cap: usize

NodeCap

Total materialized nodes exceeded V8Limits::max_nodes (DoS guard).

Fields

cap: usize

LengthCap

A declared length exceeded the node cap (e.g. a huge sparse-array length or bigint digit count) — rejected before allocating.

Fields

offset: usize

len: u64

cap: usize

Trait Implementations

impl Clone for V8Error

fn clone(&self) -> V8Error

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for V8Error

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

Formats the value using the given formatter.

impl Display for V8Error

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

Formats the value using the given formatter.

impl Eq for V8Error

impl Error for V8Error

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 PartialEq for V8Error

fn eq(&self, other: &V8Error) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for V8Error