Struct FieldError 

pub struct FieldError {
    pub path: String,
    pub expected: String,
    pub got: String,
}

Why a value coming back from Lua did not fit a #[derive(TealRecord)] struct.

FromLua is the only place the two sides of a record are compared — the .d.tl is generated from Rust, so what a host offers is checked at build time, while what it receives is checked when a value crosses. This carries enough to act on: which record, which field, the Teal type declared for it, and what arrived instead.

Outcome.cause: expected string, got nil
Outcome.depth: expected integer, got string

A record inside a record extends the path rather than nesting the message, so the innermost field is what the reader sees: Recording.outcome.cause.

Fields

path: String

Record.field, one segment per level of nesting.

expected: String

The Teal type the record declares for the field.

got: String

The Lua type that arrived: nil, string, table, …

Trait Implementations

impl Clone for FieldError

fn clone(&self) -> FieldError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FieldError

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

Formats the value using the given formatter.

impl Display for FieldError

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

Formats the value using the given formatter.

impl Eq for FieldError

impl Error for FieldError

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 FieldError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FieldError