Struct ValidationError 

pub struct ValidationError {
    pub message: String,
    pub path: Option<String>,
    pub value: Option<Value>,
}

Validation error with location information.

Contains details about what failed and where in the data structure.

Fields

message: String

Error message describing what went wrong

path: Option<String>

JSON path to the error location (e.g., “user.name”, “items[0].price”)

value: Option<Value>

The invalid value that caused the error

Implementations

impl ValidationError

pub fn new( message: impl Into<String>, path: Option<String>, value: Option<Value>, ) -> Self

Create a new validation error.

Arguments

• message - Error description
• path - Optional JSON path to the error location
• value - Optional invalid value

pub fn with_path(message: impl Into<String>, path: String) -> Self

Create an error with a path.

pub fn without_path(message: impl Into<String>) -> Self

Create an error without path.

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 From<ValidationError> for ValidationResult

fn from(error: ValidationError) -> Self

Converts to this type from the input type.

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