Sha256: e21302d7f2cf59161566e7f224c70cd892694f1ea173fb205db0c2cb82c40e2c
Contents?: true
Size: 1.51 KB
Versions: 38
Compression:
Stored size: 1.51 KB
Contents
use crate::codegen_settings::TrappableErrorType;
use crate::names;
use proc_macro2::TokenStream;
use quote::quote;
pub(super) fn define_error(
name: &witx::Id,
_v: &witx::Variant,
e: &TrappableErrorType,
) -> TokenStream {
let abi_error = names::type_(name);
let rich_error = e.typename();
quote! {
#[derive(Debug)]
pub struct #rich_error {
inner: anyhow::Error,
}
impl std::fmt::Display for #rich_error {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", self.inner)
}
}
impl std::error::Error for #rich_error {
fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
self.inner.source()
}
}
impl #rich_error {
pub fn trap(inner: anyhow::Error) -> #rich_error {
Self { inner }
}
pub fn downcast(self) -> Result<#abi_error, anyhow::Error> {
self.inner.downcast()
}
pub fn downcast_ref(&self) -> Option<&#abi_error> {
self.inner.downcast_ref()
}
pub fn context(self, s: impl Into<String>) -> Self {
Self { inner: self.inner.context(s.into()) }
}
}
impl From<#abi_error> for #rich_error {
fn from(abi: #abi_error) -> #rich_error {
#rich_error { inner: anyhow::Error::from(abi) }
}
}
}
}
Version data entries
38 entries across 38 versions & 1 rubygems