Enum PlanError 

#[non_exhaustive]
pub enum PlanError {
    EmptyPrompt,
    InvalidIntent(String),
    UnknownModel {
        hint: String,
    },
    AmbiguousModel {
        hint: String,
        candidates: Vec<String>,
    },
    FieldAlreadyExists {
        model: String,
        field: String,
    },
    FieldDoesNotExist {
        model: String,
        field: String,
    },
    DeveloperOnlyRequested(&'static str),
    CoreModelProtected(String),
    UnknownType(String),
    Validation(PrimitiveError),
    ContextParse(String),
}

Every reason the planner can refuse. Named variants so downstream tooling can branch on kind instead of parsing strings.

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.

EmptyPrompt

Prompt was empty or whitespace only.

InvalidIntent(String)

Prompt didn’t match any supported grammar.

UnknownModel

Prompt referenced a model the schema doesn’t know about.

Fields

hint: String

AmbiguousModel

Prompt referenced a model name that matched more than one registered model (e.g. under both struct name and singular form). The candidates are surfaced so the caller can re-prompt with a specific name.

Fields

hint: String

candidates: Vec<String>

FieldAlreadyExists

add_field would collide with an existing field.

Fields

model: String

field: String

FieldDoesNotExist

remove_field / rename_field / change_* referenced a field that doesn’t exist on the resolved model.

Fields

model: String

field: String

DeveloperOnlyRequested(&'static str)

User asked for something only a developer may do (e.g. raw SQL, create_migration). The planner refuses up front.

CoreModelProtected(String)

Planner-proposed an operation that would modify a core: true model (e.g. User). Refused.

UnknownType(String)

Unknown type hint the user supplied (as foobar).

Validation(PrimitiveError)

The composed plan failed Plan::validate — the schema-aware simulation disagreed with the proposed primitive. Wrapped error carries the step index + reason.

ContextParse(String)

rustio.context.json existed but failed to parse.

Trait Implementations

impl Clone for PlanError

fn clone(&self) -> PlanError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PlanError

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

Formats the value using the given formatter.

impl Display for PlanError

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

Formats the value using the given formatter.

impl Error for PlanError

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 PartialEq for PlanError

fn eq(&self, other: &PlanError) -> 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 StructuralPartialEq for PlanError