Enum amplify_syn::ArgValue

pub enum ArgValue {
    Literal(Lit),
    Type(Type),
    None,
}

Value for attribute or attribute argument, i.e. for #[attr = value] and #[attr(arg = value)] this is the value part of the attribute. Can be either a single literal or a single valid rust type name

Variants

Literal(Lit)

Attribute value represented by a literal

Type(Type)

Attribute value represented by a type name

None

No value is given

Implementations

impl ArgValue

pub fn literal_value(&self) -> Result<Lit, Error>

Returns literal value for ArgValue::Literal variant or fails with Error::ArgValueMustBeLiteral otherwise

pub fn type_value(&self) -> Result<Type, Error>

Returns type value for ArgValue::Type variant or fails with Error::ArgValueMustBeType otherwise

pub fn is_none(&self) -> bool

Tests whether the self is set to ArgValue::None

pub fn is_some(&self) -> bool

Tests whether the self is not set to ArgValue::None

pub fn value_class(&self) -> Option<ValueClass>

Returns ValueClass for the current value, if any

Trait Implementations

impl Clone for ArgValue

fn clone(&self) -> ArgValue

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ArgValue

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

Formats the value using the given formatter.

impl From<&'_ [u8]> for ArgValue

fn from(val: &[u8]) -> Self

Performs the conversion.

impl From<&'_ str> for ArgValue

fn from(val: &str) -> Self

Performs the conversion.

impl From<Ident> for ArgValue

fn from(ident: Ident) -> Self

Performs the conversion.

impl From<Option<LitBool>> for ArgValue

fn from(val: Option<LitBool>) -> Self

Performs the conversion.

impl From<Option<LitByteStr>> for ArgValue

fn from(val: Option<LitByteStr>) -> Self

Performs the conversion.

impl From<Option<LitChar>> for ArgValue

fn from(val: Option<LitChar>) -> Self

Performs the conversion.

impl From<Option<LitFloat>> for ArgValue

fn from(val: Option<LitFloat>) -> Self

Performs the conversion.

impl From<Option<LitInt>> for ArgValue

fn from(val: Option<LitInt>) -> Self

Performs the conversion.

impl From<Option<LitStr>> for ArgValue

fn from(val: Option<LitStr>) -> Self

Performs the conversion.

impl From<Path> for ArgValue

fn from(path: Path) -> Self

Performs the conversion.

impl From<String> for ArgValue

fn from(val: String) -> Self

Performs the conversion.

impl From<Vec<u8, Global>> for ArgValue

fn from(val: Vec<u8>) -> Self

Performs the conversion.

impl From<char> for ArgValue

fn from(val: char) -> Self

Performs the conversion.

impl From<f64> for ArgValue

fn from(val: f64) -> Self

Performs the conversion.

impl From<isize> for ArgValue

fn from(val: isize) -> Self

Performs the conversion.

impl From<usize> for ArgValue

fn from(val: usize) -> Self

Performs the conversion.

impl Parse for ArgValue

fn parse(input: &ParseBuffer<'_>) -> Result<Self, Error>

impl ToTokens for ArgValue

fn to_tokens(&self, tokens: &mut TokenStream)

Write self to the given TokenStream.

pub fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.

pub fn into_token_stream(self) -> TokenStream

Convert self directly into a TokenStream object.

impl TryInto<Ident> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Ident, Self::Error>

Performs the conversion.

impl TryInto<LitBool> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<LitBool, Self::Error>

Performs the conversion.

impl TryInto<LitByteStr> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<LitByteStr, Self::Error>

Performs the conversion.

impl TryInto<LitChar> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<LitChar, Self::Error>

Performs the conversion.

impl TryInto<LitFloat> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<LitFloat, Self::Error>

Performs the conversion.

impl TryInto<LitInt> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<LitInt, Self::Error>

Performs the conversion.

impl TryInto<LitStr> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<LitStr, Self::Error>

Performs the conversion.

impl TryInto<Option<Ident>> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Option<Ident>, Self::Error>

Performs the conversion.

impl TryInto<Option<LitBool>> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Option<LitBool>, Self::Error>

Performs the conversion.

impl TryInto<Option<LitByteStr>> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Option<LitByteStr>, Self::Error>

Performs the conversion.

impl TryInto<Option<LitChar>> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Option<LitChar>, Self::Error>

Performs the conversion.

impl TryInto<Option<LitFloat>> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Option<LitFloat>, Self::Error>

Performs the conversion.

impl TryInto<Option<LitInt>> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Option<LitInt>, Self::Error>

Performs the conversion.

impl TryInto<Option<LitStr>> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Option<LitStr>, Self::Error>

Performs the conversion.

impl TryInto<Option<Path>> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Option<Path>, Self::Error>

Performs the conversion.

impl TryInto<Path> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Path, Self::Error>

Performs the conversion.

impl TryInto<String> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<String, Self::Error>

Performs the conversion.

impl TryInto<Vec<u8, Global>> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Vec<u8>, Self::Error>

Performs the conversion.

impl TryInto<bool> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<bool, Self::Error>

Performs the conversion.

impl TryInto<char> for ArgValue

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<char, Self::Error>

Performs the conversion.