Enum CodeGenError 

#[non_exhaustive]
pub enum CodeGenError {
    MissingField(&'static str),
    InvalidTypePath(String),
    InvalidSyntax(String),
    FileNotFound(String),
    Other(String),
    ReservedFieldName {
        message_name: String,
        field_name: String,
    },
    ModuleNameConflict {
        scope: String,
        name_a: String,
        name_b: String,
        module_name: String,
    },
    ReservedModuleName {
        name: String,
        location: String,
    },
    MessageSetNotSupported {
        message_name: String,
    },
    InvalidCustomAttribute {
        path: String,
        attribute: String,
        detail: String,
    },
}

Code generation error.

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.

MissingField(&'static str)

A required field was absent in a descriptor.

The &'static str names the missing field for diagnostics.

InvalidTypePath(String)

A resolved type path string could not be parsed as a Rust type.

InvalidSyntax(String)

The accumulated TokenStream failed to parse as valid Rust syntax.

FileNotFound(String)

A requested file was not present in the descriptor set.

Other(String)

Unexpected descriptor state (e.g. a map entry or oneof that cannot be resolved to a known descriptor field).

ReservedFieldName

A proto field name uses the __buffa_ reserved prefix, which would conflict with buffa’s internal generated fields.

Fields

message_name: String

field_name: String

ModuleNameConflict

Two sibling messages produce the same Rust module name after snake_case conversion (e.g., HTTPRequest and HttpRequest both become pub mod http_request).

Fields

scope: String

name_a: String

name_b: String

module_name: String

ReservedModuleName

A proto package segment, message name, or file-level enum name would emit a Rust item matching the reserved sentinel __buffa.

This is the only name buffa reserves in user namespace. Resolve by renaming the proto element.

Fields

name: String

location: String

MessageSetNotSupported

The input contains a message with option message_set_wire_format = true but CodeGenConfig::allow_message_set was not set.

Fields

message_name: String

InvalidCustomAttribute

A custom attribute string configured via CodeGenConfig::type_attributes, CodeGenConfig::field_attributes, or CodeGenConfig::message_attributes could not be parsed as a Rust attribute.

Fields

path: String

attribute: String

detail: String

Trait Implementations

impl Clone for CodeGenError

fn clone(&self) -> CodeGenError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CodeGenError

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

Formats the value using the given formatter.

impl Display for CodeGenError

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

Formats the value using the given formatter.

impl Error for CodeGenError

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.