logo
#[non_exhaustive]
pub enum ContextKind {
Show 17 variants InvalidSubcommand, InvalidArg, PriorArg, ValidValue, InvalidValue, ActualNumValues, ExpectedNumValues, MinValues, ActualNumOccurrences, MaxOccurrences, SuggestedCommand, SuggestedSubcommand, SuggestedArg, SuggestedValue, TrailingArg, Usage, Custom,
}
Expand description

Semantics for a piece of error information

Variants (Non-exhaustive)

This enum is marked as 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.

InvalidSubcommand

The cause of the error

InvalidArg

The cause of the error

PriorArg

Existing arguments

ValidValue

Accepted values

InvalidValue

Rejected values

ActualNumValues

Number of values present

ExpectedNumValues

Number of allowed values

MinValues

Minimum number of allowed values

ActualNumOccurrences

Number of occurrences present

MaxOccurrences

Maximum number of allowed occurrences

SuggestedCommand

Potential fix for the user

SuggestedSubcommand

Potential fix for the user

SuggestedArg

Potential fix for the user

SuggestedValue

Potential fix for the user

TrailingArg

Trailing argument

Usage

A usage string

Custom

An opaque message to the user

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

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

This method tests for !=.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Compare self to key and return true if they are equal.

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.