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//! Workspace-related errors
use std::{error::Error, fmt, io, path::PathBuf, string::FromUtf8Error};
use ra_db::ParseEditionError;
#[derive(Debug)]
pub enum WorkspaceError {
CargoMetadataFailed(cargo_metadata::Error),
CargoTomlNotFound(PathBuf),
NoStdLib(PathBuf),
OpenWorkspaceError(io::Error),
ParseEditionError(ParseEditionError),
ReadWorkspaceError(serde_json::Error),
RustcCfgError,
RustcError(io::Error),
RustcOutputError(FromUtf8Error),
SysrootNotFound,
}
impl fmt::Display for WorkspaceError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Self::OpenWorkspaceError(err) | Self::RustcError(err) => write!(f, "{}", err),
Self::ParseEditionError(err) => write!(f, "{}", err),
Self::ReadWorkspaceError(err) => write!(f, "{}", err),
Self::RustcOutputError(err) => write!(f, "{}", err),
Self::CargoMetadataFailed(err) => write!(f, "cargo metadata failed: {}", err),
Self::RustcCfgError => write!(f, "failed to get rustc cfgs"),
Self::SysrootNotFound => write!(f, "failed to locate sysroot"),
Self::CargoTomlNotFound(path) => {
write!(f, "can't find Cargo.toml at {}", path.display())
}
Self::NoStdLib(sysroot) => write!(
f,
"can't load standard library from sysroot\n\
{:?}\n\
try running `rustup component add rust-src` or set `RUST_SRC_PATH`",
sysroot,
),
}
}
}
impl From<ParseEditionError> for WorkspaceError {
fn from(err: ParseEditionError) -> Self {
Self::ParseEditionError(err.into())
}
}
impl From<cargo_metadata::Error> for WorkspaceError {
fn from(err: cargo_metadata::Error) -> Self {
Self::CargoMetadataFailed(err.into())
}
}
impl Error for WorkspaceError {}
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