Enum Warning 

pub enum Warning {
    Unsupported {
        feature: String,
        details: Option<String>,
    },
    Compatibility {
        feature: String,
        details: Option<String>,
    },
    Deprecated {
        setting: String,
        message: String,
    },
    Other {
        message: String,
    },
}

Provider-emitted warning about a model call.

Mirrors SharedV4Warning (ai-sdk packages/provider/src/shared/v4/shared-v4-warning.ts). The four variants are wire-compatible with the upstream type tag: unsupported / compatibility / deprecated / other.

Variants

Unsupported

A feature is not supported by the model — the request was sent without it and the result may differ from the caller’s intent. Mirrors upstream { type: 'unsupported', feature, details? }.

Fields

feature: String

Name of the feature / setting / tool that was unsupported. Matches upstream feature field (snake_case wire name).

details: Option<String>

Optional human-readable details.

Compatibility

A compatibility-mode feature is in use that may produce suboptimal results (the request still went through but with a coerced or downgraded shape). Mirrors upstream { type: 'compatibility', feature, details? }.

Fields

feature: String

Name of the feature operating in compatibility mode.

details: Option<String>

Optional human-readable details.

Deprecated

A deprecated setting / feature is being used; the message explains the recommended replacement. Mirrors upstream { type: 'deprecated', setting, message }.

Fields

setting: String

Name of the deprecated setting / feature.

message: String

Human-readable message explaining what to use instead.

Other

Generic warning for cases that don’t fit the structured variants. Mirrors upstream { type: 'other', message }.

Fields

message: String

Human-readable message.

Trait Implementations

impl Clone for Warning

fn clone(&self) -> Warning

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Warning

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Warning

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Warning

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Warning

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Warning