ajars_web_sys 0.3.0

AjaRS
Documentation 
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use thiserror::Error as ThisError;
use wasm_bindgen::JsValue;

#[derive(Debug, ThisError)]
pub enum Error {
    #[error("Cannot find Window object")]
    MissingWindow,
    #[error("{context}")]
    WebSys {
        /// Some crate-provided context to the error.
        context: String,
        /// The originally reported `JsValue` in some textual form.
        // We do not keep the `JsValue` around because they are a pain to
        // work with (just extracting something useful) and they cause
        // everything they touch to be not `Send`.
        #[source]
        source: WebError,
    },
}

#[derive(Debug, ThisError)]
#[error("{0}")]
pub struct WebError(String);

impl Error {
    /// Create a new `Error::WebSys` variant.
    pub(crate) fn web<S>(context: S, error: JsValue) -> Error
    where
        S: Into<String>,
    {
        let error = if let Some(error) = error.as_string() { error } else { format!("{:?}", error) };

        Self::WebSys { context: context.into(), source: WebError(error) }
    }
}