Struct ContentDisposition 

pub struct ContentDisposition(/* private fields */);

MIME content-disposition token (RFC 2183).

Equality and hashing

Same shape as ContentType: construction lowercases the disposition kind and parameter names, then PartialEq / Eq / Hash compare that normalized string. RFC 2183 §3 makes the disposition type and parameter names case-insensitive but leaves parameter value case sensitivity dependent on the parameter. The kernel preserves parameter values verbatim; for semantic comparison route through the disposition’s accessors rather than comparing raw input strings.

Implementations

impl ContentDisposition

pub fn as_str(&self) -> &str

pub fn kind(&self) -> &str

Borrowed disposition kind ("inline", "attachment", or an x- extension), with no parameters.

Cheap: it slices the stored string; no allocation. Validation guarantees a well-formed disposition token prefix exists.

pub fn parameters(&self) -> impl Iterator<Item = (&str, ParameterValue<'_>)>

Iterate (name, value) parameter pairs in declaration order.

Quoted values are returned with surrounding quotes stripped and backslash escapes resolved, mirroring ContentType::parameters.

pub fn parameter(&self, name: &str) -> Option<ParameterValue<'_>>

Look up a parameter by case-insensitive name.

pub fn filename(&self) -> Option<ParameterValue<'_>>

Convenience accessor for the filename parameter.

RFC 2183 §2.3 defines this as the suggested filename a recipient’s mail client should use when saving the attachment to disk. For non-ASCII filenames the kernel emits filename* (RFC 2231 charset/language extension); this accessor returns filename when present and otherwise falls back to filename*.

pub fn is_inline(&self) -> bool

Returns true if the disposition kind is inline (case-insensitive).

pub fn is_attachment(&self) -> bool

Returns true if the disposition kind is attachment (case-insensitive).

Trait Implementations

impl<'a> Arbitrary<'a> for ContentDisposition

Available on crate feature arbitrary only.

fn arbitrary(u: &mut Unstructured<'a>) -> Result<Self>

Generate an arbitrary value of Self from the given unstructured data.

fn arbitrary_take_rest(u: Unstructured<'a>) -> Result<Self, Error>

Generate an arbitrary value of Self from the entirety of the given unstructured data.

fn size_hint(depth: usize) -> (usize, Option<usize>)

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

fn try_size_hint( depth: usize, ) -> Result<(usize, Option<usize>), MaxRecursionReached>

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

impl Clone for ContentDisposition

fn clone(&self) -> ContentDisposition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ContentDisposition

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ContentDisposition

Available on crate feature serde only.

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

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ContentDisposition

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

Formats the value using the given formatter.

impl FromStr for ContentDisposition

type Err = ContentDispositionParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for ContentDisposition

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

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl JsonSchema for ContentDisposition

Available on crate feature schemars only.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(_generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

impl PartialEq for ContentDisposition

fn eq(&self, other: &ContentDisposition) -> 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 Serialize for ContentDisposition

Available on crate feature serde only.

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

where S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<&str> for ContentDisposition

type Error = ContentDispositionParseError

The type returned in the event of a conversion error.

fn try_from(value: &str) -> Result<Self, Self::Error>

Performs the conversion.

impl Eq for ContentDisposition

impl StructuralPartialEq for ContentDisposition