Enum nu_errors::ArgumentError

pub enum ArgumentError {
    MissingMandatoryFlag(String),
    MissingMandatoryPositional(String),
    MissingValueForName(String),
    UnexpectedArgument(Spanned<String>),
    UnexpectedFlag(Spanned<String>),
    InvalidExternalWord,
}

ArgumentError describes various ways that the parser could fail because of unexpected arguments. Nu commands are like a combination of functions and macros, and these errors correspond to problems that could be identified during expansion based on the syntactic signature of a command.

Variants

MissingMandatoryFlag(String)

The command specified a mandatory flag, but it was missing.

MissingMandatoryPositional(String)

The command specified a mandatory positional argument, but it was missing.

MissingValueForName(String)

A flag was found, and it should have been followed by a value, but no value was found

UnexpectedArgument(Spanned<String>)

An argument was found, but the command does not recognize it

UnexpectedFlag(Spanned<String>)

An flag was found, but the command does not recognize it

InvalidExternalWord

A sequence of characters was found that was not syntactically valid (but would have been valid if the command was an external command)

Trait Implementations

impl Clone for ArgumentError

pub fn clone(&self) -> ArgumentError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ArgumentError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ArgumentError

pub fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Eq for ArgumentError

impl Hash for ArgumentError

pub fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Ord for ArgumentError

pub fn cmp(&self, other: &ArgumentError) -> Ordering

This method returns an Ordering between self and other.

#[must_use]pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<ArgumentError> for ArgumentError

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

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

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

This method tests for !=.

impl PartialOrd<ArgumentError> for ArgumentError

pub fn partial_cmp(&self, other: &ArgumentError) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

pub fn lt(&self, other: &ArgumentError) -> bool

This method tests less than (for self and other) and is used by the < operator.

pub fn le(&self, other: &ArgumentError) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

pub fn gt(&self, other: &ArgumentError) -> bool

This method tests greater than (for self and other) and is used by the > operator.

pub fn ge(&self, other: &ArgumentError) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl PrettyDebug for ArgumentError

pub fn pretty(&self) -> DebugDocBuilder

pub fn to_doc(&self) -> DebugDoc

pub fn pretty_doc(
    &self
) -> Doc<'static, BoxDoc<'static, ShellAnnotation>, ShellAnnotation>

pub fn pretty_builder(
    &self
) -> DocBuilder<'static, BoxAllocator, ShellAnnotation>

pub fn display(&self) -> String

A convenience method that prints out the document without colors in 70 columns. Generally, you should use plain_string or colored_string if possible, but display() can be useful for trace lines and things like that, where you don't have control over the terminal.

pub fn plain_string(&self, width: usize) -> String

pub fn colored_string(&self, width: usize) -> String

impl Serialize for ArgumentError

pub fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl StructuralEq for ArgumentError

impl StructuralPartialEq for ArgumentError