Enum YamlError 

pub enum YamlError {
    Io(Error),
    Parse {
        message: String,
        line: Option<usize>,
        column: Option<usize>,
    },
    KeyNotFound {
        key: String,
        available_keys: Vec<String>,
        path: String,
    },
    TypeMismatch {
        expected: String,
        actual: String,
        path: String,
    },
    InvalidIndex {
        index: usize,
        length: usize,
        path: String,
    },
    InvalidOperation {
        operation: String,
        reason: String,
    },
}

Errors that can occur when working with YAML documents

Variants

Io(Error)

I/O error when reading or writing files

Parse

Parse error when parsing YAML

Fields

message: String

Error message describing what went wrong

line: Option<usize>

Line number where the error occurred (if available)

column: Option<usize>

Column number where the error occurred (if available)

KeyNotFound

Key not found in mapping

Fields

key: String

The key that was not found

available_keys: Vec<String>

Available keys in the mapping (for helpful error messages)

path: String

Path to the mapping where the key was searched

TypeMismatch

Type mismatch - expected one type but got another

Fields

expected: String

Expected type (e.g., “mapping”, “sequence”, “scalar”)

actual: String

Actual type found

path: String

Path to the value with the type mismatch

InvalidIndex

Invalid index for sequence access

Fields

index: usize

The index that was out of bounds

length: usize

The actual length of the sequence

path: String

Path to the sequence

InvalidOperation

Invalid operation for the given context

Fields

operation: String

Description of what operation was attempted

reason: String

Why it’s invalid

Trait Implementations

impl Debug for YamlError

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

Formats the value using the given formatter.

impl Display for YamlError

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

Formats the value using the given formatter.

impl Error for YamlError

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<Error> for YamlError

fn from(err: Error) -> Self

Converts to this type from the input type.