Enum wasmer::MemoryError

pub enum MemoryError {
    Region(String),
    CouldNotGrow {
        current: Pages,
        attempted_delta: Pages,
    },
    InvalidMemory {
        reason: String,
    },
    Generic(String),
}

Error type describing things that can go wrong when operating on Wasm Memories.

Variants

Region(String)

Low level error with mmap.

CouldNotGrow

The operation would cause the size of the memory to exceed the maximum or would cause an overflow leading to unindexable memory.

Fields of CouldNotGrow

current: Pages

The current size in pages.

attempted_delta: Pages

The attempted amount to grow by in pages.

InvalidMemory

The operation would cause the size of the memory size exceed the maximum.

Fields of InvalidMemory

reason: String

The reason why the provided memory is invalid.

Generic(String)

A user defined error value, used for error cases not listed above.

Trait Implementations

impl Clone for MemoryError

fn clone(&self) -> MemoryError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryError

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

Formats the value using the given formatter.

impl Display for MemoryError

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

Formats the value using the given formatter.

impl Error for MemoryError

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

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

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

Returns a stack backtrace, if available, of where this error occurred.

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

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

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl Hash for MemoryError

fn hash<__H>(&self, state: &mut __H) where
    __H: Hasher, 

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl PartialEq<MemoryError> for MemoryError

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.