Enum CustomTripleCreateError 

#[non_exhaustive]
pub enum CustomTripleCreateError {
    CustomJsonUnavailable,
    CustomCfgUnavailable,
    DeserializeJson {
        triple: String,
        input: String,
        error: Arc<Error>,
    },
    ParseCfg {
        triple: String,
        input: String,
        message: String,
        line: usize,
    },
    ConflictingCustomPlatformSources {
        triple: String,
    },
}

An error returned while creating a custom platform.

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.

CustomJsonUnavailable

A custom JSON platform was asked to be created, but the custom feature is currently disabled.

Currently, this can only happen if a custom platform is deserialized from a PlatformSummary.

CustomCfgUnavailable

A custom cfg platform was asked to be created, but the custom-cfg feature is currently disabled.

Currently, this can only happen if a custom platform is deserialized from a PlatformSummary.

DeserializeJson

Available on crate feature custom only.

An error occurred while deserializing serde data.

Fields

triple: String

The specified triple.

input: String

The input string that caused the error.

error: Arc<Error>

The deserialization error that occurred.

ParseCfg

Available on crate feature custom-cfg only.

An error occurred while parsing rustc --print=cfg output.

Fields

triple: String

The specified triple.

input: String

The input string that caused the error.

message: String

A description of what went wrong.

line: usize

The 1-based line number where the error occurred.

ConflictingCustomPlatformSources

Both custom_json and custom_cfg were specified for a platform summary, but only one is allowed.

Fields

triple: String

The specified triple.

Implementations

impl CustomTripleCreateError

pub fn input(&self) -> Option<&str>

Returns the provided input that caused the error, if available.

pub fn input_string(&self) -> Option<&String>

A version of Self::input that returns a &String rather than a &str.

This is a workaround for a miette limitation – &str can’t be cast to &dyn SourceCode, but &String can.

pub fn line_and_column(&self) -> Option<(usize, usize)>

Returns the line and column number that caused the error, if available and the error is not an I/O error.

The line and column number are 1-based, though the column number can be 0 if the error occurred between lines.

pub fn label(&self) -> Option<String>

Returns a label suitable for the error message to label at Self::line_and_column.

This label drops line and column information if available.

Trait Implementations

impl Clone for CustomTripleCreateError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CustomTripleCreateError

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

Formats the value using the given formatter.

impl Display for CustomTripleCreateError

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

Formats the value using the given formatter.

impl Error for CustomTripleCreateError

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.