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denoland-deno/cli/lib/util/result.rs
David Sherret 2ab5d9ac4a
refactor: move denort to separate crate (#27688)
This slightly degrades the performance of CJS export analysis on
subsequent runs because I changed it to no longer cache in the DENO_DIR
with this PR (denort now properly has no idea about the DENO_DIR). We'll
have to change it to embed this data in the binary and that will also
allow us to get rid of swc in denort (will do that in a follow-up PR).
2025-01-18 00:03:13 +01:00

43 lines
1,004 B
Rust

// Copyright 2018-2025 the Deno authors. MIT license.
use std::convert::Infallible;
use std::fmt::Debug;
use std::fmt::Display;
use deno_error::JsErrorBox;
use deno_error::JsErrorClass;
use deno_runtime::deno_core::error::AnyError;
use deno_runtime::deno_core::error::CoreError;
pub trait InfallibleResultExt<T> {
fn unwrap_infallible(self) -> T;
}
impl<T> InfallibleResultExt<T> for Result<T, Infallible> {
fn unwrap_infallible(self) -> T {
match self {
Ok(value) => value,
Err(never) => match never {},
}
}
}
pub fn any_and_jserrorbox_downcast_ref<
E: Display + Debug + Send + Sync + 'static,
>(
err: &AnyError,
) -> Option<&E> {
err
.downcast_ref::<E>()
.or_else(|| {
err
.downcast_ref::<JsErrorBox>()
.and_then(|e| e.as_any().downcast_ref::<E>())
})
.or_else(|| {
err.downcast_ref::<CoreError>().and_then(|e| match e {
CoreError::JsBox(e) => e.as_any().downcast_ref::<E>(),
_ => None,
})
})
}