Enum BindError 

pub enum BindError {
    UnboundPlaceholder(String),
    WildcardRequirement(String),
    InvalidBoundValue(String),
}

Why bind_requirements refused a requirement set.

Variants

UnboundPlaceholder(String)

A requirement declared a {placeholder} the Binding does not resolve. Carries the offending requirement string.

WildcardRequirement(String)

Strict mode: a requirement’s resourceName is a wildcard. Carries the offending requirement string.

InvalidBoundValue(String)

A placeholder was bound to “”, “”, or a value containing ‘:’. “” and “” are the wildcard spelling, not a concrete resourceName: binding one would silently widen the requirement to the whole resource class. A ‘:’ is rejected because this port has no pre-parsed type and must re-emit the bound pattern as a string that gets re-parsed — a value containing ‘:’ would re-split into the wrong shape there, while Go/TypeScript (which construct the pattern directly) would not; rejecting it here keeps all four ports identical. A binder that could not resolve a value must fail like an unbound placeholder rather than widen the gate or diverge across ports. Carries the offending requirement string.

Trait Implementations

impl Clone for BindError

fn clone(&self) -> BindError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BindError

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

Formats the value using the given formatter.

impl Display for BindError

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

Formats the value using the given formatter.

impl Eq for BindError

impl Error for BindError

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 BindError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for BindError