Enum Error 

#[non_exhaustive]
pub enum Error {
    MissingDescriptorBinding,
    ConflictingDescriptorBindings,
    MissingOutDir,
    DescriptorTool {
        tool: &'static str,
        source: Error,
    },
    DescriptorToolFailed {
        tool: &'static str,
        status: ExitStatus,
        stderr: String,
    },
    DecodeFileDescriptorSet(DecodeError),
    BufWithIncludes,
    BuffaBuild(String),
    Io(Error),
}

Errors raised by Builder::compile.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

MissingDescriptorBinding

Neither Builder::descriptor_pool nor Builder::file_descriptor_set_bytes was supplied.

ConflictingDescriptorBindings

Both bindings were supplied; the macro accepts at most one.

MissingOutDir

OUT_DIR was not set by cargo and no explicit Builder::out_dir was given.

DescriptorTool

Spawning the descriptor-producing tool (protoc/buf) failed.

Fields

tool: &'static str

The tool that failed to launch.

source: Error

Source io::Error.

DescriptorToolFailed

The descriptor-producing tool returned a non-zero exit status.

Fields

tool: &'static str

The tool that failed.

status: ExitStatus

Exit status returned by the tool.

stderr: String

Captured stderr.

DecodeFileDescriptorSet(DecodeError)

The descriptor-set bytes could not be parsed.

BufWithIncludes

Buf mode resolves imports through buf.yaml/buf.work.yaml and has no use for protoc-style .includes(..). Configuring both is almost always a bug, so we error rather than silently dropping the include list.

BuffaBuild(String)

buffa-build reported an error.

buffa-build’s compile() returns a Box<dyn Error> (without Send + Sync), so we capture its rendered message and surface it here as a string. The original error chain is unfortunately lost on the buffa-build side; if more structured failure data is needed we can lift it from a future buffa-build release.

Io(Error)

I/O error while reading or writing artifacts.

Trait Implementations

impl Debug for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.