Enum WasmError 

pub enum WasmError {
    ParseError(String),
    QueryError(String),
    StoreError(String),
    ValidationError(String),
    SerializationError(String),
    NotImplemented(String),
}

WASM error type

Variants

ParseError(String)

QueryError(String)

StoreError(String)

ValidationError(String)

SerializationError(String)

NotImplemented(String)

Implementations

impl WasmError

pub fn code(&self) -> &'static str

A stable, machine-readable name for this error’s variant.

This is set as both the name and code properties of the js_sys::Error built by From<WasmError> for JsValue, so a JS catch block can branch on error kind (err.code === "ParseError") instead of pattern-matching the human-readable message text.

Trait Implementations

impl Debug for WasmError

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

Formats the value using the given formatter.

impl Display for WasmError

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

Formats the value using the given formatter.

impl Error for WasmError

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 From<WasmError> for JsValue

Convert a WasmError into a real js_sys::Error (so JS sees instanceof Error with a stack trace) carrying a stable name/code so callers can distinguish a ParseError from a StoreError from a ValidationError etc. without parsing the message string.

js_sys::Error::new calls into an imported JS binding that only exists when actually running inside a wasm32 + JS host — calling it from a native (non-wasm32) test binary panics with “cannot call wasm-bindgen imported functions on non-wasm targets”. Since this crate’s own design keeps its Rust-level logic natively testable (see api::wasm_api’s module doc), non-wasm32 builds fall back to the plain string this conversion used before, so cargo test/cargo nextest keeps working; only real wasm32 builds — the only place a JS catch block ever actually sees this value — get the richer js_sys::Error.

fn from(error: WasmError) -> Self

Converts to this type from the input type.