IntoLiteralString

Struct IntoLiteralString 

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pub struct IntoLiteralString<T>(/* private fields */);
Expand description

Parses T and creates a LiteralString from it. When T implements Default, such as single string (non group) keywords, operators and Const* literals. It can be used to create IntoLiteralString on the fly.

§Example

let mut token_iter = "foo 123".to_token_iter();

let parsed = <IntoLiteralString<Cons<Ident, LiteralInteger>>>::parser(&mut token_iter).unwrap();
assert_tokens_eq!(parsed, r#" "foo 123" "#);

keyword!{Foo = "foo"}
let default = <IntoLiteralString<Cons<Foo, ConstInteger<1234>>>>::default();
assert_tokens_eq!(default, r#" "foo 1234" "#);

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impl<T> IntoLiteralString<T>
where T: ToTokens,

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pub fn from(from: &T) -> IntoLiteralString<T>

Creates a IntoLiteralString from an AST.

let mut token_iter = "foo 123".to_token_iter();

let parsed = <Cons<Ident, LiteralInteger>>::parser(&mut token_iter).unwrap();
let as_string = IntoLiteralString::from(&parsed);

assert_eq!(as_string.as_str(), "foo 123");
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impl<T> IntoLiteralString<T>

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pub fn as_str(&self) -> &str

Returns the underlying &strwithout its surrounding quotes.

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pub fn into_inner(self) -> LiteralString

Destructures IntoLiteralString<T> to get the inner LiteralString.

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impl<T> Debug for IntoLiteralString<T>
where T: Debug,

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

Formats the value using the given formatter. Read more
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impl<T> Default for IntoLiteralString<T>
where T: Default + ToTokens,

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fn default() -> IntoLiteralString<T>

Returns the “default value” for a type. Read more
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impl<T> Parser for IntoLiteralString<T>
where T: Parse + ToTokens,

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fn parser(tokens: &mut TokenIter) -> Result<IntoLiteralString<T>, Error>

The actual parsing function that must be implemented. This mutates the tokens iterator directly. It should not be called from user code except for implementing parsers itself and then only when the rules below are followed. Read more
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impl<T> ToTokens for IntoLiteralString<T>

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

Write &self to the given TokenStream. Read more
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fn to_token_iter(&self) -> TokenIter

Convert &self into a TokenIter object.
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fn into_token_iter(self) -> TokenIter
where Self: Sized,

Convert self into a TokenIter object.
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fn to_token_stream(&self) -> TokenStream

Convert &self into a TokenStream object.
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fn into_token_stream(self) -> TokenStream
where Self: Sized,

Convert self into a TokenStream object.
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fn tokens_to_string(&self) -> String

Convert &self into a String object. This is mostly used in the test suite to compare the outputs. When the input is a &str then this parses it and returns a normalized String.

Auto Trait Implementations§

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impl<T> Freeze for IntoLiteralString<T>

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impl<T> RefUnwindSafe for IntoLiteralString<T>
where T: RefUnwindSafe,

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impl<T> !Send for IntoLiteralString<T>

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impl<T> !Sync for IntoLiteralString<T>

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impl<T> Unpin for IntoLiteralString<T>
where T: Unpin,

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impl<T> UnwindSafe for IntoLiteralString<T>
where T: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> DynamicTokens for T
where T: Any + ToTokens + Debug,

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fn as_any(&self) -> &(dyn Any + 'static)

Upcasts &DynamicTokens to &dyn Any. This allows us to stay backward compatible with older rust. Rust 1.86 implements upcast coercion.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> Parse for T
where T: Parser,

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fn parse(tokens: &mut TokenIter) -> Result<Self, Error>

This is the user facing API to parse grammatical entities. Calls a parser() within a transaction. Commits changes on success and returns the parsed value. Read more
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fn parse_all(tokens: &mut TokenIter) -> Result<Self, Error>

Exhaustive parsing within a transaction. This is a convenience method that implies a EndOfStream at the end. Thus it will error if parsing is not exhaustive. Read more
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fn parse_with<T>( tokens: &mut TokenIter, f: impl FnOnce(Self, &mut TokenIter) -> Result<T, Error>, ) -> Result<T, Error>

Parse a value in a transaction, pass it to a FnOnce(Self, &mut TokenIter) -> Result<T> closure which creates a new result or returns an Error. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.