Enum EvalError 

#[non_exhaustive]
pub enum EvalError {
    Cycle {
        participants: Vec<Address>,
    },
    Limit {
        kind: LimitKind,
        observed: u64,
        limit: u64,
    },
    Func {
        name: Arc<str>,
        message: Arc<str>,
    },
    PathEscape {
        func: &'static str,
        path: PathBuf,
    },
}

Recoverable evaluator failure.

EvalError is not propagated out of crate::eval::Evaluator::evaluate: instead the evaluator records each failure as a crate::Diagnostic on the returned crate::eval::EvaluatedComponent and proceeds. The error type is public so callers (and tests) can build the same diagnostic shape elsewhere — see HclEvaluator for the conversion path.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Cycle

A cycle was detected in locals. The participants list is the cycle in order of first observation (deterministic — sorted by name) so the diagnostic is stable across runs.

Fields

participants: Vec<Address>

The locals participating in the cycle (by Address, e.g. "local.a").

Limit

A configured limit fired. kind identifies which one; the message embeds the observed and configured values.

Fields

kind: LimitKind

Which limit category fired.

observed: u64

Observed value at the time of the breach.

limit: u64

Configured limit.

Func

A registered function returned an error. name is the function being called; message is the function’s own diagnostic. Function failures are recoverable: the call site keeps the unresolved expression and the workspace surfaces a diagnostic.

Fields

name: Arc<str>

The function name.

message: Arc<str>

Function-supplied message.

PathEscape

A sandboxed file function rejected a path because it resolved outside the workspace root.

Fields

func: &'static str

Function name ("file", "templatefile", …).

path: PathBuf

Path supplied by the caller.

Trait Implementations

impl Clone for EvalError

fn clone(&self) -> EvalError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EvalError

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

Formats the value using the given formatter.

impl Display for EvalError

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

Formats the value using the given formatter.

impl Error for EvalError

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 EvalError

fn eq(&self, other: &EvalError) -> 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 EvalError

impl StructuralPartialEq for EvalError