Enum ResolveError 

pub enum ResolveError {
    Parse(HarnessConfigError),
    Cycle(Vec<String>),
    DepthExceeded(Vec<String>),
    PathExtendsNotAllowed(String),
    Io(PathBuf, String),
    UnknownKey(String),
    MissingDependency {
        module: String,
        requires: String,
    },
    Conflict {
        name: String,
        detail: String,
    },
}

Everything that can fail §3.5 resolution.

Variants

Parse(HarnessConfigError)

The document isn’t valid TOML/JSON, or doesn’t match the schema.

Cycle(Vec<String>)

extends formed a cycle (step 2). Carries the visitation chain, ending with the name that closed the loop.

DepthExceeded(Vec<String>)

The extends chain exceeded the depth-8 cap (step 2).

PathExtendsNotAllowed(String)

extends named a path from a layer where only built-in preset names are legal (§3.3: a project file may never extends a path).

Io(PathBuf, String)

A preset file path could not be read.

UnknownKey(String)

Strict mode (step 5): the document set a key this build doesn’t recognize under schema_version = 1.

MissingDependency

Step 6: an enabled module’s hard dependency is unmet.

Fields

module: String

The module that requires something.

requires: String

What it requires and doesn’t have.

Conflict

Step 6: an unresolvable §2.2 conflict (only C6 today — every other implemented conflict degrades to a warning per §2.2’s own resolution text).

Fields

name: String

The conflict’s §2.2 name (e.g. "C6").

detail: String

Human-readable detail.

Trait Implementations

impl Debug for ResolveError

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

Formats the value using the given formatter.

impl Display for ResolveError

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

Formats the value using the given formatter.

impl Error for ResolveError

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.