Enum wat::Detect

pub enum Detect {
    WasmText,
    WasmBinary,
    Unknown,
}

Result of Detect::from_bytes to indicate what some input bytes look like.

Variants

WasmText

The input bytes look like the WebAssembly text format.

WasmBinary

The input bytes look like the WebAssembly binary format.

Unknown

The input bytes don’t look like WebAssembly at all.

Implementations

impl Detect

pub fn from_bytes(bytes: impl AsRef<[u8]>) -> Detect

Detect quickly if supplied bytes represent a Wasm module, whether binary encoded or in WAT-encoded.

This briefly lexes past whitespace and comments as a *.wat file to see if we can find a left-paren. If that fails then it’s probably *.wit instead.

Examples

use wat::Detect;

assert_eq!(Detect::from_bytes(r#"
(module
  (type (;0;) (func))
  (func (;0;) (type 0)
    nop
  )
)
"#), Detect::WasmText);

pub fn is_wasm(&self) -> bool

Returns whether this is either binary or textual wasm.

Trait Implementations

impl Clone for Detect

fn clone(&self) -> Detect

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Detect

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

Formats the value using the given formatter.

impl PartialEq for Detect

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Detect

impl Eq for Detect

impl StructuralPartialEq for Detect