scramjet/rewriter/wasm/src/error.rs

use js_sys::Error;
use rewriter::RewriterError as InnerRewriterError;
use thiserror::Error;
use wasm_bindgen::{JsError, JsValue};

#[derive(Debug, Error)]
pub enum RewriterError {
    #[error("JS: {0}")]
    Js(String),
    #[error("URL parse error: {0}")]
    Url(#[from] url::ParseError),
    #[error("str fromutf8 error: {0}")]
    Str(#[from] std::str::Utf8Error),
    #[error("Rewriter: {0}")]
    Rewriter(#[from] InnerRewriterError),
    #[error("reflect set failed: {0}")]
    ReflectSetFail(String),

    #[error("{0} was not {1}")]
    Not(String, &'static str),
}

impl From<JsValue> for RewriterError {
    fn from(value: JsValue) -> Self {
        Self::Js(Error::from(value).to_string().into())
    }
}

impl From<RewriterError> for JsValue {
    fn from(value: RewriterError) -> Self {
        JsError::from(value).into()
    }
}

impl RewriterError {
    pub fn not_str(x: &str) -> Self {
        Self::Not(x.to_string(), "string")
    }

    pub fn not_fn(x: &str) -> Self {
        Self::Not(x.to_string(), "function")
    }

    pub fn not_bool(x: &str) -> Self {
        Self::Not(x.to_string(), "bool")
    }
}

pub type Result<T> = std::result::Result<T, RewriterError>;