Enum CodeGenWarning 

#[non_exhaustive]
pub enum CodeGenWarning {
    #[non_exhaustive]
    IdiomaticAliasesSuppressed {
        enum_name: String,
        conflicts: Vec<AliasConflict>,
        invalid: Vec<String>,
    },
    #[non_exhaustive]
    OwnedViewAccessorSuppressed {
        wrapper_name: String,
        field_name: String,
    },
    #[non_exhaustive]
    LazyViewsRequireViews,
    #[non_exhaustive]
    IdiomaticFieldNamesAdjusted {
        message_name: String,
        assignments: Vec<(String, String)>,
    },
    #[non_exhaustive]
    FeatureOverrideMatchedNothing {
        rule: String,
        feature: &'static str,
        value: &'static str,
    },
}

A non-fatal diagnostic produced during code generation.

Returned by generate_with_diagnostics. Render the human-readable form via the Display impl (e.g. cargo:warning={warning}), or match on the variant for programmatic handling. The enum and its variants are #[non_exhaustive] so new diagnostic kinds and fields can be added without a breaking change.

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.

#[non_exhaustive]

IdiomaticAliasesSuppressed

Idiomatic CamelCase aliases were suppressed for an enum because two or more proto values collide after conversion, or a value would convert to an invalid identifier. The enum’s SHOUTY_SNAKE_CASE variants are unaffected.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

enum_name: String

The Rust name of the affected enum.

conflicts: Vec<AliasConflict>

Each collision, by target identifier. Empty if the only problem was invalid identifiers.

invalid: Vec<String>

Proto values that would convert to an invalid Rust identifier.

#[non_exhaustive]

OwnedViewAccessorSuppressed

A field or oneof accessor on a generated FooOwnedView wrapper was suppressed because the proto name collides with one of the wrapper’s reserved method names (decode, view, bytes, …). The field stays fully accessible through view() on the wrapper (or OwnedView::reborrow).

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

wrapper_name: String

The Rust name of the wrapper type (e.g. FooOwnedView).

field_name: String

The proto field or oneof name whose accessor was suppressed.

#[non_exhaustive]

LazyViewsRequireViews

lazy_views was requested with generate_views disabled; the lazy family reuses the eager view-oneof enums and eager sub-view types, so no lazy views were generated. Emitted once per generation run.

#[non_exhaustive]

IdiomaticFieldNamesAdjusted

idiomatic_field_names found two or more members of one message whose snake_case conversions collide, and adjusted the affected Rust names deterministically (_f<number> suffix for fields, verbatim fallback for oneofs — see CodeGenConfig::idiomatic_field_names). Wire, JSON, and text-format names are unaffected.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

message_name: String

Fully-qualified proto name of the affected message.

assignments: Vec<(String, String)>

(proto_name, final_rust_name) for each adjusted member, sorted by proto name.

#[non_exhaustive]

FeatureOverrideMatchedNothing

A feature_overrides rule matched nothing the override targets in the compiled descriptor set, so it changed nothing. Usually a typo, a missing nested-message segment, or a stale path after a proto rename — the affected paths silently keep their default semantics.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

rule: String

The rule’s path as configured (post-normalization).

feature: &'static str

The overridden feature’s name (e.g. "enum_type").

value: &'static str

The override value (e.g. "OPEN").

Trait Implementations

impl Clone for CodeGenWarning

fn clone(&self) -> CodeGenWarning

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CodeGenWarning

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

Formats the value using the given formatter.

impl Display for CodeGenWarning

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

Formats the value using the given formatter.

impl Eq for CodeGenWarning

impl PartialEq for CodeGenWarning

fn eq(&self, other: &CodeGenWarning) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for CodeGenWarning