Enum BuilderError 

pub enum BuilderError {
    DuplicateDimension(Dim),
    WarnNotBelowLimit(Dim),
    ZeroLimit(Dim),
    NoDimensions,
}

Errors returned by BudgetBuilder::build.

All variants represent structural problems with a budget declaration that the builder refuses to construct. None of these are recoverable at runtime — they indicate a bug in the caller’s declaration code.

Variants

DuplicateDimension(Dim)

The same dimension was declared more than once. Ambiguous: which limit should win? The builder refuses to guess.

WarnNotBelowLimit(Dim)

A warn threshold was configured that equals or exceeds the dimension’s limit. A warn threshold must fire strictly before exhaustion or it serves no purpose.

ZeroLimit(Dim)

A limit of zero was configured. A zero-limit dimension can never accept any charge, which is almost certainly a bug in caller code.

NoDimensions

The builder had no dimensions declared when build was called. An empty budget returns Verdict::Continue for every charge, which is indistinguishable from having no budget at all. Refuse to construct.

Trait Implementations

impl Clone for BuilderError

fn clone(&self) -> BuilderError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BuilderError

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

Formats the value using the given formatter.

impl Display for BuilderError

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

Formats the value using the given formatter.

impl Error for BuilderError

Available on crate feature std only.

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 BuilderError

fn eq(&self, other: &BuilderError) -> 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 Copy for BuilderError

impl Eq for BuilderError

impl StructuralPartialEq for BuilderError