Enum Unexpected

pub enum Unexpected<'a> {
    Bool(bool),
    Unsigned(u64),
    Signed(i64),
    Float(f64),
    Char(char),
    Str(&'a str),
    Bytes(&'a [u8]),
    Unit,
    Option,
    NewtypeStruct,
    Seq,
    Map,
    Enum,
    UnitVariant,
    NewtypeVariant,
    TupleVariant,
    StructVariant,
    Other(&'a str),
}

Unexpected represents an unexpected invocation of any one of the Visitor trait methods.

This is used as an argument to the invalid_type, invalid_value, and invalid_length methods of the Error trait to build error messages.

fn visit_bool<E>(self, v: bool) -> Result<Self::Value, E>
where
    E: de::Error,
{
    Err(de::Error::invalid_type(Unexpected::Bool(v), &self))
}

Variants

Bool(bool)

The input contained a boolean value that was not expected.

Unsigned(u64)

The input contained an unsigned integer u8, u16, u32 or u64 that was not expected.

Signed(i64)

The input contained a signed integer i8, i16, i32 or i64 that was not expected.

Float(f64)

The input contained a floating point f32 or f64 that was not expected.

Char(char)

The input contained a char that was not expected.

Str(&'a str)

The input contained a &str or String that was not expected.

Bytes(&'a [u8])

The input contained a &[u8] or Vec<u8> that was not expected.

Unit

The input contained a unit () that was not expected.

Option

The input contained an Option<T> that was not expected.

NewtypeStruct

The input contained a newtype struct that was not expected.

Seq

The input contained a sequence that was not expected.

Map

The input contained a map that was not expected.

Enum

The input contained an enum that was not expected.

UnitVariant

The input contained a unit variant that was not expected.

NewtypeVariant

The input contained a newtype variant that was not expected.

TupleVariant

The input contained a tuple variant that was not expected.

StructVariant

The input contained a struct variant that was not expected.

Other(&'a str)

A message stating what uncategorized thing the input contained that was not expected.

The message should be a noun or noun phrase, not capitalized and without a period. An example message is “unoriginal superhero”.

Trait Implementations

impl<'a> Clone for Unexpected<'a>

fn clone(&self) -> Unexpected<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Unexpected<'a>

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

Formats the value using the given formatter.

impl<'a> Display for Unexpected<'a>

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

Formats the value using the given formatter.

impl<'a> PartialEq for Unexpected<'a>

fn eq(&self, other: &Unexpected<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl<'a> Copy for Unexpected<'a>

impl<'a> StructuralPartialEq for Unexpected<'a>

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 24 bytes

Size for each variant:

• Bool: 1 byte
• Unsigned: 15 bytes
• Signed: 15 bytes
• Float: 15 bytes
• Char: 7 bytes
• Str: 23 bytes
• Bytes: 23 bytes
• Unit: 0 bytes
• Option: 0 bytes
• NewtypeStruct: 0 bytes
• Seq: 0 bytes
• Map: 0 bytes
• Enum: 0 bytes
• UnitVariant: 0 bytes
• NewtypeVariant: 0 bytes
• TupleVariant: 0 bytes
• StructVariant: 0 bytes
• Other: 23 bytes