Enum nu_protocol::ShellError

pub enum ShellError {
    OperatorMismatch {
        op_span: Span,
        lhs_ty: String,
        lhs_span: Span,
        rhs_ty: String,
        rhs_span: Span,
    },
    OperatorOverflow {
        msg: String,
        span: Span,
        help: String,
    },
    PipelineMismatch {
        exp_input_type: String,
        dst_span: Span,
        src_span: Span,
    },
    OnlySupportsThisInputType {
        exp_input_type: String,
        wrong_type: String,
        dst_span: Span,
        src_span: Span,
    },
    PipelineEmpty {
        dst_span: Span,
    },
    TypeMismatch {
        err_message: String,
        span: Span,
    },
    IncorrectValue {
        msg: String,
        val_span: Span,
        call_span: Span,
    },
    UnsupportedOperator {
        operator: Operator,
        span: Span,
    },
    AssignmentRequiresVar {
        lhs_span: Span,
    },
    AssignmentRequiresMutableVar {
        lhs_span: Span,
    },
    UnknownOperator {
        op_token: String,
        span: Span,
    },
    MissingParameter {
        param_name: String,
        span: Span,
    },
    IncompatibleParameters {
        left_message: String,
        left_span: Span,
        right_message: String,
        right_span: Span,
    },
    DelimiterError {
        msg: String,
        span: Span,
    },
    IncompatibleParametersSingle {
        msg: String,
        span: Span,
    },
    ExternalNotSupported {
        span: Span,
    },
    InvalidProbability {
        span: Span,
    },
    InvalidRange {
        left_flank: String,
        right_flank: String,
        span: Span,
    },
    NushellFailed {
        msg: String,
    },
    NushellFailedSpanned {
        msg: String,
        label: String,
        span: Span,
    },
    NushellFailedHelp {
        msg: String,
        help: String,
    },
    VariableNotFoundAtRuntime {
        span: Span,
    },
    EnvVarNotFoundAtRuntime {
        envvar_name: String,
        span: Span,
    },
    ModuleNotFoundAtRuntime {
        mod_name: String,
        span: Span,
    },
    OverlayNotFoundAtRuntime {
        overlay_name: String,
        span: Span,
    },
    NotFound {
        span: Span,
    },
    CantConvert {
        to_type: String,
        from_type: String,
        span: Span,
        help: Option<String>,
    },
    CantConvertToDuration {
        details: String,
        dst_span: Span,
        src_span: Span,
        help: Option<String>,
    },
    EnvVarNotAString {
        envvar_name: String,
        span: Span,
    },
    AutomaticEnvVarSetManually {
        envvar_name: String,
        span: Span,
    },
    CannotReplaceEnv {
        span: Span,
    },
    DivisionByZero {
        span: Span,
    },
    CannotCreateRange {
        span: Span,
    },
    AccessBeyondEnd {
        max_idx: usize,
        span: Span,
    },
    InsertAfterNextFreeIndex {
        available_idx: usize,
        span: Span,
    },
    AccessEmptyContent {
        span: Span,
    },
    AccessBeyondEndOfStream {
        span: Span,
    },
    IncompatiblePathAccess {
        type_name: String,
        span: Span,
    },
    CantFindColumn {
        col_name: String,
        span: Span,
        src_span: Span,
    },
    ColumnAlreadyExists {
        col_name: String,
        span: Span,
        src_span: Span,
    },
    NotAList {
        dst_span: Span,
        src_span: Span,
    },
    ColumnDefinedTwice {
        col_name: String,
        second_use: Span,
        first_use: Span,
    },
    RecordColsValsMismatch {
        bad_value: Span,
        creation_site: Span,
    },
    ExternalCommand {
        label: String,
        help: String,
        span: Span,
    },
    UnsupportedInput {
        msg: String,
        input: String,
        msg_span: Span,
        input_span: Span,
    },
    DatetimeParseError {
        msg: String,
        span: Span,
    },
    NetworkFailure {
        msg: String,
        span: Span,
    },
    CommandNotFound {
        span: Span,
    },
    AliasNotFound {
        span: Span,
    },
    FileNotFound {
        file: String,
        span: Span,
    },
    FileNotFoundCustom {
        msg: String,
        span: Span,
    },
    PluginFailedToLoad {
        msg: String,
    },
    PluginFailedToEncode {
        msg: String,
    },
    PluginFailedToDecode {
        msg: String,
    },
    CustomValueIncorrectForPlugin {
        name: String,
        span: Span,
        dest_plugin: String,
        src_plugin: Option<String>,
    },
    CustomValueFailedToEncode {
        msg: String,
        span: Span,
    },
    CustomValueFailedToDecode {
        msg: String,
        span: Span,
    },
    IOInterrupted {
        msg: String,
        span: Span,
    },
    IOError {
        msg: String,
    },
    IOErrorSpanned {
        msg: String,
        span: Span,
    },
    NotADirectory {
        span: Span,
    },
    DirectoryNotFound {
        dir: String,
        span: Span,
    },
    MoveNotPossible {
        source_message: String,
        source_span: Span,
        destination_message: String,
        destination_span: Span,
    },
    CreateNotPossible {
        msg: String,
        span: Span,
    },
    ChangeAccessTimeNotPossible {
        msg: String,
        span: Span,
    },
    ChangeModifiedTimeNotPossible {
        msg: String,
        span: Span,
    },
    RemoveNotPossible {
        msg: String,
        span: Span,
    },
    ReadingFile {
        msg: String,
        span: Span,
    },
    DidYouMean {
        suggestion: String,
        span: Span,
    },
    DidYouMeanCustom {
        msg: String,
        suggestion: String,
        span: Span,
    },
    NonUtf8 {
        span: Span,
    },
    NonUtf8Custom {
        msg: String,
        span: Span,
    },
    DowncastNotPossible {
        msg: String,
        span: Span,
    },
    UnsupportedConfigValue {
        expected: String,
        value: String,
        span: Span,
    },
    MissingConfigValue {
        missing_value: String,
        span: Span,
    },
    NeedsPositiveValue {
        span: Span,
    },
    GenericError {
        error: String,
        msg: String,
        span: Option<Span>,
        help: Option<String>,
        inner: Vec<ShellError>,
    },
    OutsideSpannedLabeledError {
        src: String,
        error: String,
        msg: String,
        span: Span,
    },
    LabeledError(Box<LabeledError>),
    RemovedCommand {
        removed: String,
        replacement: String,
        span: Span,
    },
    EvalBlockWithInput {
        span: Span,
        sources: Vec<ShellError>,
    },
    Break {
        span: Span,
    },
    Continue {
        span: Span,
    },
    Return {
        span: Span,
        value: Box<Value>,
    },
    RecursionLimitReached {
        recursion_limit: u64,
        span: Option<Span>,
    },
    LazyRecordAccessFailed {
        message: String,
        column_name: String,
        span: Span,
    },
    InterruptedByUser {
        span: Option<Span>,
    },
    MatchGuardNotBool {
        span: Span,
    },
    MissingConstEvalImpl {
        span: Span,
    },
    NotAConstant {
        span: Span,
    },
    NotAConstCommand {
        span: Span,
    },
    NotAConstHelp {
        span: Span,
    },
    InvalidGlobPattern {
        msg: String,
        span: Span,
    },
    CannotSpreadAsList {
        span: Span,
    },
    CannotSpreadAsRecord {
        span: Span,
    },
    CannotPassListToExternal {
        arg: String,
        span: Span,
    },
    OutOfBounds {
        left_flank: String,
        right_flank: String,
        span: Span,
    },
    ConfigDirNotFound {
        span: Option<Span>,
    },
    InvalidXdgConfig {
        xdg: String,
        default: String,
    },
}

The fundamental error type for the evaluation engine. These cases represent different kinds of errors the evaluator might face, along with helpful spans to label. An error renderer will take this error value and pass it into an error viewer to display to the user.

Variants

OperatorMismatch

An operator received two arguments of incompatible types.

Resolution

Check each argument’s type and convert one or both as needed.

Fields

op_span: Span

lhs_ty: String

lhs_span: Span

rhs_ty: String

rhs_span: Span

OperatorOverflow

An arithmetic operation’s resulting value overflowed its possible size.

Resolution

Check the inputs to the operation and add guards for their sizes. Integers are generally of size i64, floats are generally f64.

Fields

msg: String

span: Span

help: String

PipelineMismatch

The pipelined input into a command was not of the expected type. For example, it might expect a string input, but received a table instead.

Resolution

Check the relevant pipeline and extract or convert values as needed.

Fields

exp_input_type: String

dst_span: Span

src_span: Span

OnlySupportsThisInputType

The pipelined input into a command was not of the expected type. For example, it might expect a string input, but received a table instead.

(duplicate of ShellError::PipelineMismatch that reports the observed type)

Resolution

Check the relevant pipeline and extract or convert values as needed.

Fields

exp_input_type: String

wrong_type: String

dst_span: Span

src_span: Span

PipelineEmpty

No input value was piped into the command.

Resolution

Only use this command to process values from a previous expression.

Fields

dst_span: Span

TypeMismatch

A command received an argument of the wrong type.

Resolution

Convert the argument type before passing it in, or change the command to accept the type.

Fields

err_message: String

span: Span

IncorrectValue

A command received an argument with correct type but incorrect value.

Resolution

Correct the argument value before passing it in or change the command.

Fields

msg: String

val_span: Span

call_span: Span

UnsupportedOperator

This value cannot be used with this operator.

Resolution

Not all values, for example custom values, can be used with all operators. Either implement support for the operator on this type, or convert the type to a supported one.

Fields

operator: Operator

span: Span

AssignmentRequiresVar

Invalid assignment left-hand side

Resolution

Assignment requires that you assign to a variable or variable cell path.

Fields

lhs_span: Span

AssignmentRequiresMutableVar

Invalid assignment left-hand side

Resolution

Assignment requires that you assign to a mutable variable or cell path.

Fields

lhs_span: Span

UnknownOperator

An operator was not recognized during evaluation.

Resolution

Did you write the correct operator?

Fields

op_token: String

span: Span

MissingParameter

An expected command parameter is missing.

Resolution

Add the expected parameter and try again.

Fields

param_name: String

span: Span

IncompatibleParameters

Two parameters conflict with each other or are otherwise mutually exclusive.

Resolution

Remove one of the parameters/options and try again.

Fields

left_message: String

left_span: Span

right_message: String

right_span: Span

DelimiterError

There’s some issue with number or matching of delimiters in an expression.

Resolution

Check your syntax for mismatched braces, RegExp syntax errors, etc, based on the specific error message.

Fields

msg: String

span: Span

IncompatibleParametersSingle

An operation received parameters with some sort of incompatibility (for example, different number of rows in a table, incompatible column names, etc).

Resolution

Refer to the specific error message for details on what’s incompatible and then fix your inputs to make sure they match that way.

Fields

msg: String

span: Span

ExternalNotSupported

You’re trying to run an unsupported external command.

Resolution

Make sure there’s an appropriate run-external declaration for this external command.

Fields

span: Span

InvalidProbability

The given probability input is invalid. The probability must be between 0 and 1.

Resolution

Make sure the probability is between 0 and 1 and try again.

Fields

span: Span

InvalidRange

The first value in a .. range must be compatible with the second one.

Resolution

Check to make sure both values are compatible, and that the values are enumerable in Nushell.

Fields

left_flank: String

right_flank: String

span: Span

NushellFailed

Catastrophic nushell failure. This reflects a completely unexpected or unrecoverable error.

Resolution

It is very likely that this is a bug. Please file an issue at https://github.com/nushell/nushell/issues with relevant information.

Fields

msg: String

NushellFailedSpanned

Catastrophic nushell failure. This reflects a completely unexpected or unrecoverable error.

Resolution

It is very likely that this is a bug. Please file an issue at https://github.com/nushell/nushell/issues with relevant information.

Fields

msg: String

label: String

span: Span

NushellFailedHelp

Catastrophic nushell failure. This reflects a completely unexpected or unrecoverable error.

Resolution

It is very likely that this is a bug. Please file an issue at https://github.com/nushell/nushell/issues with relevant information.

Fields

msg: String

help: String

VariableNotFoundAtRuntime

A referenced variable was not found at runtime.

Resolution

Check the variable name. Did you typo it? Did you forget to declare it? Is the casing right?

Fields

span: Span

EnvVarNotFoundAtRuntime

A referenced environment variable was not found at runtime.

Resolution

Check the environment variable name. Did you typo it? Did you forget to declare it? Is the casing right?

Fields

envvar_name: String

span: Span

ModuleNotFoundAtRuntime

A referenced module was not found at runtime.

Resolution

Check the module name. Did you typo it? Did you forget to declare it? Is the casing right?

Fields

mod_name: String

span: Span

OverlayNotFoundAtRuntime

A referenced overlay was not found at runtime.

Resolution

Check the overlay name. Did you typo it? Did you forget to declare it? Is the casing right?

Fields

overlay_name: String

span: Span

NotFound

The given item was not found. This is a fairly generic error that depends on context.

Resolution

This error is triggered in various places, and simply signals that “something” was not found. Refer to the specific error message for further details.

Fields

span: Span

CantConvert

Failed to convert a value of one type into a different type.

Resolution

Not all values can be coerced this way. Check the supported type(s) and try again.

Fields

to_type: String

from_type: String

span: Span

help: Option<String>

CantConvertToDuration

Fields

details: String

dst_span: Span

src_span: Span

help: Option<String>

EnvVarNotAString

An environment variable cannot be represented as a string.

Resolution

Not all types can be converted to environment variable values, which must be strings. Check the input type and try again.

Fields

envvar_name: String

span: Span

AutomaticEnvVarSetManually

This environment variable cannot be set manually.

Resolution

This environment variable is set automatically by Nushell and cannot not be set manually.

Fields

envvar_name: String

span: Span

CannotReplaceEnv

It is not possible to replace the entire environment at once

Resolution

Setting the entire environment is not allowed. Change environment variables individually instead.

Fields

span: Span

DivisionByZero

Division by zero is not a thing.

Resolution

Add a guard of some sort to check whether a denominator input to this division is zero, and branch off if that’s the case.

Fields

span: Span

CannotCreateRange

An error happened while trying to create a range.

This can happen in various unexpected situations, for example if the range would loop forever (as would be the case with a 0-increment).

Resolution

Check your range values to make sure they’re countable and would not loop forever.

Fields

span: Span

AccessBeyondEnd

You attempted to access an index beyond the available length of a value.

Resolution

Check your lengths and try again.

Fields

max_idx: usize

span: Span

InsertAfterNextFreeIndex

You attempted to insert data at a list position higher than the end.

Resolution

To insert data into a list, assign to the last used index + 1.

Fields

available_idx: usize

span: Span

AccessEmptyContent

You attempted to access an index when it’s empty.

Resolution

Check your lengths and try again.

Fields

span: Span

AccessBeyondEndOfStream

You attempted to access an index beyond the available length of a stream.

Resolution

Check your lengths and try again.

Fields

span: Span

IncompatiblePathAccess

Tried to index into a type that does not support pathed access.

Resolution

Check your types. Only composite types can be pathed into.

Fields

type_name: String

span: Span

CantFindColumn

The requested column does not exist.

Resolution

Check the spelling of your column name. Did you forget to rename a column somewhere?

Fields

col_name: String

span: Span

src_span: Span

ColumnAlreadyExists

Attempted to insert a column into a table, but a column with that name already exists.

Resolution

Drop or rename the existing column (check rename -h) and try again.

Fields

col_name: String

span: Span

src_span: Span

NotAList

The given operation can only be performed on lists.

Resolution

Check the input type to this command. Are you sure it’s a list?

Fields

dst_span: Span

src_span: Span

ColumnDefinedTwice

Fields can only be defined once

Resolution

Check the record to ensure you aren’t reusing the same field name

Fields

col_name: String

second_use: Span

first_use: Span

RecordColsValsMismatch

Attempted to create a record from different number of columns and values

Resolution

Check the record has the same number of columns as values

Fields

bad_value: Span

creation_site: Span

ExternalCommand

An error happened while performing an external command.

Resolution

This error is fairly generic. Refer to the specific error message for further details.

Fields

label: String

help: String

span: Span

UnsupportedInput

An operation was attempted with an input unsupported for some reason.

Resolution

This error is fairly generic. Refer to the specific error message for further details.

Fields

msg: String

input: String

msg_span: Span

input_span: Span

DatetimeParseError

Failed to parse an input into a datetime value.

Resolution

Make sure your datetime input format is correct.

For example, these are some valid formats:

• “5 pm”
• “2020/12/4”
• “2020.12.04 22:10 +2”
• “2020-04-12 22:10:57 +02:00”
• “2020-04-12T22:10:57.213231+02:00”
• “Tue, 1 Jul 2003 10:52:37 +0200”“#

Fields

msg: String

span: Span

NetworkFailure

A network operation failed.

Resolution

It’s always DNS.

Fields

msg: String

span: Span

CommandNotFound

Help text for this command could not be found.

Resolution

Check the spelling for the requested command and try again. Are you sure it’s defined and your configurations are loading correctly? Can you execute it?

Fields

span: Span

AliasNotFound

This alias could not be found

Resolution

The alias does not exist in the current scope. It might exist in another scope or overlay or be hidden.

Fields

span: Span

FileNotFound

Failed to find a file during a nushell operation.

Resolution

Does the file in the error message exist? Is it readable and accessible? Is the casing right?

Fields

file: String

span: Span

FileNotFoundCustom

Failed to find a file during a nushell operation.

Resolution

Does the file in the error message exist? Is it readable and accessible? Is the casing right?

Fields

msg: String

span: Span

PluginFailedToLoad

A plugin failed to load.

Resolution

This is a fairly generic error. Refer to the specific error message for further details.

Fields

msg: String

PluginFailedToEncode

A message from a plugin failed to encode.

Resolution

This is likely a bug with the plugin itself.

Fields

msg: String

PluginFailedToDecode

A message to a plugin failed to decode.

Resolution

This is either an issue with the inputs to a plugin (bad JSON?) or a bug in the plugin itself. Fix or report as appropriate.

Fields

msg: String

CustomValueIncorrectForPlugin

A custom value cannot be sent to the given plugin.

Resolution

Custom values can only be used with the plugin they came from. Use a command from that plugin instead.

Fields

name: String

span: Span

dest_plugin: String

src_plugin: Option<String>

CustomValueFailedToEncode

The plugin failed to encode a custom value.

Resolution

This is likely a bug with the plugin itself. The plugin may have tried to send a custom value that is not serializable.

Fields

msg: String

span: Span

CustomValueFailedToDecode

The plugin failed to encode a custom value.

Resolution

This may be a bug within the plugin, or the plugin may have been updated in between the creation of the custom value and its use.

Fields

msg: String

span: Span

IOInterrupted

I/O operation interrupted.

Resolution

This is a generic error. Refer to the specific error message for further details.

Fields

msg: String

span: Span

IOError

An I/O operation failed.

Resolution

This is a generic error. Refer to the specific error message for further details.

Fields

msg: String

IOErrorSpanned

An I/O operation failed.

Resolution

This is a generic error. Refer to the specific error message for further details.

Fields

msg: String

span: Span

NotADirectory

Tried to cd to a path that isn’t a directory.

Resolution

Make sure the path is a directory. It currently exists, but is of some other type, like a file.

Fields

span: Span

DirectoryNotFound

Attempted to perform an operation on a directory that doesn’t exist.

Resolution

Make sure the directory in the error message actually exists before trying again.

Fields

dir: String

span: Span

MoveNotPossible

The requested move operation cannot be completed. This is typically because both paths exist, but are of different types. For example, you might be trying to overwrite an existing file with a directory.

Resolution

Make sure the destination path does not exist before moving a directory.

Fields

source_message: String

source_span: Span

destination_message: String

destination_span: Span

CreateNotPossible

Failed to create either a file or directory.

Resolution

This is a fairly generic error. Refer to the specific error message for further details.

Fields

msg: String

span: Span

ChangeAccessTimeNotPossible

Changing the access time (“atime”) of this file is not possible.

Resolution

This can be for various reasons, such as your platform or permission flags. Refer to the specific error message for more details.

Fields

msg: String

span: Span

ChangeModifiedTimeNotPossible

Changing the modification time (“mtime”) of this file is not possible.

Resolution

This can be for various reasons, such as your platform or permission flags. Refer to the specific error message for more details.

Fields

msg: String

span: Span

RemoveNotPossible

Unable to remove this item.

Resolution

Removal can fail for a number of reasons, such as permissions problems. Refer to the specific error message for more details.

Fields

msg: String

span: Span

ReadingFile

Error while trying to read a file

Resolution

The error will show the result from a file operation

Fields

msg: String

span: Span

DidYouMean

A name was not found. Did you mean a different name?

Resolution

The error message will suggest a possible match for what you meant.

Fields

suggestion: String

span: Span

DidYouMeanCustom

A name was not found. Did you mean a different name?

Resolution

The error message will suggest a possible match for what you meant.

Fields

msg: String

suggestion: String

span: Span

NonUtf8

The given input must be valid UTF-8 for further processing.

Resolution

Check your input’s encoding. Are there any funny characters/bytes?

Fields

span: Span

NonUtf8Custom

The given input must be valid UTF-8 for further processing.

Resolution

Check your input’s encoding. Are there any funny characters/bytes?

Fields

msg: String

span: Span

DowncastNotPossible

A custom value could not be converted to a Dataframe.

Resolution

Make sure conversion to a Dataframe is possible for this value or convert it to a type that does, first.

Fields

msg: String

span: Span

UnsupportedConfigValue

The value given for this configuration is not supported.

Resolution

Refer to the specific error message for details and convert values as needed.

Fields

expected: String

value: String

span: Span

MissingConfigValue

An expected configuration value is not present.

Resolution

Refer to the specific error message and add the configuration value to your config file as needed.

Fields

missing_value: String

span: Span

NeedsPositiveValue

Negative value passed when positive one is required.

Resolution

Guard against negative values or check your inputs.

Fields

span: Span

GenericError

This is a generic error type used for different situations.

Fields

error: String

msg: String

span: Option<Span>

help: Option<String>

inner: Vec<ShellError>

OutsideSpannedLabeledError

This is a generic error type used for different situations.

Fields

src: String

error: String

msg: String

span: Span

LabeledError(Box<LabeledError>)

This is a generic error type used for user and plugin-generated errors.

RemovedCommand

Attempted to use a command that has been removed from Nushell.

Resolution

Check the help for the new suggested command and update your script accordingly.

Fields

removed: String

replacement: String

span: Span

EvalBlockWithInput

Failed to eval block with specific pipeline input.

Fields

span: Span

sources: Vec<ShellError>

Break

Break event, which may become an error if used outside of a loop

Fields

span: Span

Continue

Continue event, which may become an error if used outside of a loop

Fields

span: Span

Return

Return event, which may become an error if used outside of a function

Fields

span: Span

value: Box<Value>

RecursionLimitReached

The code being executed called itself too many times.

Resolution

Adjust your Nu code to

Fields

recursion_limit: u64

span: Option<Span>

LazyRecordAccessFailed

An attempt to access a record column failed.

Fields

message: String

column_name: String

span: Span

InterruptedByUser

Operation interrupted by user

Fields

span: Option<Span>

MatchGuardNotBool

An attempt to use, as a match guard, an expression that does not resolve into a boolean

Fields

span: Span

MissingConstEvalImpl

An attempt to run a command marked for constant evaluation lacking the const. eval. implementation.

This is an internal Nushell error, please file an issue.

Fields

span: Span

NotAConstant

Tried assigning non-constant value to a constant

Resolution

Only a subset of expressions are allowed to be assigned as a constant during parsing.

Fields

span: Span

NotAConstCommand

Tried running a command that is not const-compatible

Resolution

Only a subset of builtin commands, and custom commands built only from those commands, can run at parse time.

Fields

span: Span

NotAConstHelp

Tried getting a help message at parse time.

Resolution

Help messages are not supported at parse time.

Fields

span: Span

InvalidGlobPattern

Invalid glob pattern

Resolution

Correct glob pattern

Fields

msg: String

span: Span

CannotSpreadAsList

Tried spreading a non-list inside a list or command call.

Resolution

Only lists can be spread inside lists and command calls. Try converting the value to a list before spreading.

Fields

span: Span

CannotSpreadAsRecord

Tried spreading a non-record inside a record.

Resolution

Only records can be spread inside records. Try converting the value to a record before spreading.

Fields

span: Span

CannotPassListToExternal

Lists are not automatically spread when calling external commands

Resolution

Use the spread operator (put a ‘…’ before the argument)

Fields

arg: String

span: Span

OutOfBounds

Out of bounds.

Resolution

Make sure the range is within the bounds of the input.

Fields

left_flank: String

right_flank: String

span: Span

ConfigDirNotFound

The config directory could not be found

Fields

span: Option<Span>

InvalidXdgConfig

XDG_CONFIG_HOME was set to an invalid path

Fields

xdg: String

default: String

Implementations

impl ShellError

pub fn wrap(self, working_set: &StateWorkingSet<'_>, span: Span) -> ParseError

Trait Implementations

impl Clone for ShellError

fn clone(&self) -> ShellError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ShellError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ShellError

ShellError always deserializes as if it were LabeledError, resulting in a ShellError::LabeledError variant.

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Diagnostic for ShellError

fn code(&self) -> Option<Box<dyn Display + '_>>

Unique diagnostic code that can be used to look up more information about this Diagnostic. Ideally also globally unique, and documented in the toplevel crate’s documentation for easy searching. Rust path format (foo::bar::baz) is recommended, but more classic codes like E0123 or enums will work just fine.

fn help(&self) -> Option<Box<dyn Display + '_>>

Additional help text related to this Diagnostic. Do you have any advice for the poor soul who’s just run into this issue?

fn severity(&self) -> Option<Severity>

Diagnostic severity. This may be used by ReportHandlers to change the display format of this diagnostic.

fn labels(&self) -> Option<Box<dyn Iterator<Item = LabeledSpan> + '_>>

Labels to apply to this Diagnostic’s Diagnostic::source_code

fn source_code(&self) -> Option<&dyn SourceCode>

Source code to apply this Diagnostic’s Diagnostic::labels to.

fn related(&self) -> Option<Box<dyn Iterator<Item = &dyn Diagnostic> + '_>>

Additional related Diagnostics.

fn url(&self) -> Option<Box<dyn Display + '_>>

URL to visit for a more detailed explanation/help about this Diagnostic.

fn diagnostic_source(&self) -> Option<&dyn Diagnostic>

The cause of the error.

impl Display for ShellError

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

Formats the value using the given formatter.

impl Error for ShellError

fn source(&self) -> Option<&(dyn Error + 'static)>

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 From<Box<LabeledError>> for ShellError

fn from(source: Box<LabeledError>) -> Self

Converts to this type from the input type.

impl From<Box<dyn Error>> for ShellError

fn from(input: Box<dyn Error>) -> ShellError

Converts to this type from the input type.

impl From<Box<dyn Error + Sync + Send>> for ShellError

fn from(input: Box<dyn Error + Send + Sync>) -> ShellError

Converts to this type from the input type.

impl From<Error> for ShellError

fn from(input: Error) -> ShellError

Converts to this type from the input type.

impl From<LabeledError> for ShellError

fn from(value: LabeledError) -> Self

Converts to this type from the input type.

impl From<ShellError> for LabeledError

fn from(err: ShellError) -> Self

Converts to this type from the input type.

impl From<Spanned<Error>> for ShellError

fn from(error: Spanned<Error>) -> Self

Converts to this type from the input type.

impl PartialEq for ShellError

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ShellError

ShellError always serializes as LabeledError.

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ShellError