Enum ValidationError 

pub enum ValidationError {
    InvalidRef {
        instance_path: JsonPointer,
        ref_str: String,
        reason: String,
    },
    ExpectedObject {
        instance_path: JsonPointer,
        got: String,
    },
    ExpectedString {
        instance_path: JsonPointer,
        got: String,
    },
    ExpectedInteger {
        instance_path: JsonPointer,
        got: String,
    },
    ExpectedNumber {
        instance_path: JsonPointer,
        got: String,
    },
    ExpectedArray {
        instance_path: JsonPointer,
        got: String,
    },
    ExpectedBoolean {
        instance_path: JsonPointer,
        got: String,
    },
    DuplicateArrayItems {
        instance_path: JsonPointer,
        duplicate_value: String,
    },
    TooFewItems {
        instance_path: JsonPointer,
        min_items: u64,
        actual_count: u64,
    },
    TooManyItems {
        instance_path: JsonPointer,
        max_items: u64,
        actual_count: u64,
    },
    MissingRequired {
        instance_path: JsonPointer,
        property: String,
    },
    DisallowedAdditionalProperty {
        instance_path: JsonPointer,
        property: String,
    },
    NotInEnum {
        instance_path: JsonPointer,
        invalid_value: String,
        allowed: Vec<String>,
    },
    NotConst {
        instance_path: JsonPointer,
        expected: String,
        actual: String,
    },
    BelowMinimum {
        instance_path: JsonPointer,
        minimum: OrderedF64,
        actual: OrderedF64,
    },
    AboveMaximum {
        instance_path: JsonPointer,
        maximum: OrderedF64,
        actual: OrderedF64,
    },
    TooShort {
        instance_path: JsonPointer,
        min_length: u64,
        actual_length: u64,
    },
    TooLong {
        instance_path: JsonPointer,
        max_length: u64,
        actual_length: u64,
    },
    PatternMismatch {
        instance_path: JsonPointer,
        pattern: String,
        value: String,
    },
    InvalidPatternInSchema {
        instance_path: JsonPointer,
        pattern: String,
    },
    NoSubschemaMatched {
        instance_path: JsonPointer,
        subschema_count: usize,
    },
    MultipleSubschemasMatched {
        instance_path: JsonPointer,
        subschema_count: usize,
        match_count: usize,
    },
}

A single validation failure: kind and instance location.

Variants

InvalidRef

Schema had an invalid or unsupported $ref, or the reference could not be resolved.

Fields

instance_path: JsonPointer

JSON Pointer to the instance location where the referenced schema was applied.

ref_str: String

The $ref string from the schema.

reason: String

Human-readable reason (for user-facing context).

ExpectedObject

Schema had type: "object" but the instance was not an object.

Fields

instance_path: JsonPointer

JSON Pointer to the instance that failed.

got: String

JSON type of the instance (for user-facing context).

ExpectedString

Schema had type: "string" but the instance was not a string.

Fields

instance_path: JsonPointer

JSON Pointer to the instance that failed.

got: String

JSON type of the instance (for user-facing context).

ExpectedInteger

Schema had type: "integer" but the instance was not an integer (e.g. float, string, or non-number).

Fields

instance_path: JsonPointer

JSON Pointer to the instance that failed.

got: String

JSON type of the instance (for user-facing context).

ExpectedNumber

Schema had type: "number" but the instance was not a number (e.g. string, null, or non-number).

Fields

instance_path: JsonPointer

JSON Pointer to the instance that failed.

got: String

JSON type of the instance (for user-facing context).

ExpectedArray

Schema had type: "array" but the instance was not an array.

Fields

instance_path: JsonPointer

JSON Pointer to the instance that failed.

got: String

JSON type of the instance (for user-facing context).

ExpectedBoolean

Schema had type: "boolean" but the instance was not a boolean.

Fields

instance_path: JsonPointer

JSON Pointer to the instance that failed.

got: String

JSON type of the instance (for user-facing context).

DuplicateArrayItems

Schema had uniqueItems: true but the array contained duplicate elements.

Fields

instance_path: JsonPointer

JSON Pointer to the array instance that failed.

duplicate_value: String

Serialized duplicate value (for user-facing context).

TooFewItems

Schema had minItems but the array had fewer elements.

Fields

instance_path: JsonPointer

JSON Pointer to the array instance that failed.

min_items: u64

The schema’s minItems value.

actual_count: u64

Actual number of items in the array (for user-facing context).

TooManyItems

Schema had maxItems but the array had more elements.

Fields

instance_path: JsonPointer

JSON Pointer to the array instance that failed.

max_items: u64

The schema’s maxItems value.

actual_count: u64

Actual number of items in the array (for user-facing context).

MissingRequired

A property listed in required was absent.

Fields

instance_path: JsonPointer

JSON Pointer to the object (parent of the missing property).

property: String

The required property name that was missing.

DisallowedAdditionalProperty

Schema had additionalProperties: false but the instance contained a property not in properties.

Fields

instance_path: JsonPointer

JSON Pointer to the instance (the additional property).

property: String

The property name that is not allowed.

NotInEnum

Schema had enum but the instance value was not one of the allowed values.

Fields

instance_path: JsonPointer

JSON Pointer to the instance that failed.

invalid_value: String

Serialized invalid value (for user-facing context).

allowed: Vec<String>

Serialized allowed enum values (for user-facing context).

NotConst

Schema had const but the instance value was not equal to the const value.

Fields

instance_path: JsonPointer

JSON Pointer to the instance that failed.

expected: String

Serialized expected (const) value (for user-facing context).

actual: String

Serialized actual instance value (for user-facing context).

BelowMinimum

Instance was below the schema’s minimum (inclusive lower bound).

Fields

instance_path: JsonPointer

JSON Pointer to the instance that failed.

minimum: OrderedF64

The schema’s minimum value.

actual: OrderedF64

Actual instance value (for user-facing context).

AboveMaximum

Instance was above the schema’s maximum (inclusive upper bound).

Fields

instance_path: JsonPointer

JSON Pointer to the instance that failed.

maximum: OrderedF64

The schema’s maximum value.

actual: OrderedF64

Actual instance value (for user-facing context).

TooShort

Schema had minLength but the string had fewer Unicode code points.

Fields

instance_path: JsonPointer

JSON Pointer to the instance that failed.

min_length: u64

The schema’s minLength value.

actual_length: u64

Actual Unicode code point count (for user-facing context).

TooLong

Schema had maxLength but the string had more Unicode code points.

Fields

instance_path: JsonPointer

JSON Pointer to the instance that failed.

max_length: u64

The schema’s maxLength value.

actual_length: u64

Actual Unicode code point count (for user-facing context).

PatternMismatch

Schema had pattern but the string did not match the ECMA 262 regex.

Fields

instance_path: JsonPointer

JSON Pointer to the instance that failed.

pattern: String

The schema’s pattern value (ECMA 262 regex string).

value: String

The instance string value (for user-facing context).

InvalidPatternInSchema

Schema had an invalid pattern (not a valid ECMA 262 regex); compilation failed.

Fields

instance_path: JsonPointer

JSON Pointer to the instance (schema location where pattern was applied).

pattern: String

The invalid pattern string from the schema.

NoSubschemaMatched

Schema had anyOf but the instance did not validate against any of the subschemas.

Fields

instance_path: JsonPointer

JSON Pointer to the instance that failed.

subschema_count: usize

Number of subschemas in the anyOf (for user-facing context).

MultipleSubschemasMatched

Schema had oneOf but the instance validated against more than one subschema.

Fields

instance_path: JsonPointer

JSON Pointer to the instance that failed.

subschema_count: usize

Number of subschemas in the oneOf (for user-facing context).

match_count: usize

Number of subschemas that passed validation (must be >= 2 for this error).

Implementations

impl ValidationError

pub fn instance_path(&self) -> &JsonPointer

Trait Implementations

impl Clone for ValidationError

fn clone(&self) -> ValidationError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValidationError

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

Formats the value using the given formatter.

impl Display for ValidationError

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

Formats the value using the given formatter.

impl Error for ValidationError

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 ValidationError

fn eq(&self, other: &ValidationError) -> 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 Eq for ValidationError

impl StructuralPartialEq for ValidationError