struct MacroArgParser {
    buf: String,
    start_tok: Token,
    is_meta_var: bool,
    last_tok: Token,
    result: Vec<ParsedMacroArg>,
}
Expand description

Parses macro arguments on macro def.

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§buf: String

Either a name of the next metavariable, a separator, or junk.

§start_tok: Token

The first token of the current buffer.

§is_meta_var: bool

true if we are parsing a metavariable or a repeat.

§last_tok: Token

The last token parsed.

§result: Vec<ParsedMacroArg>

Holds the parsed arguments.

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impl MacroArgParser

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fn new() -> MacroArgParser

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fn set_last_tok(&mut self, tok: &TokenTree)

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fn add_separator(&mut self)

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fn add_other(&mut self)

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fn add_meta_variable(&mut self, iter: &mut RefTokenTreeCursor<'_>) -> Option<()>

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fn add_delimited(&mut self, inner: Vec<ParsedMacroArg>, delim: Delimiter)

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fn add_repeat( &mut self, inner: Vec<ParsedMacroArg>, delim: Delimiter, iter: &mut RefTokenTreeCursor<'_> ) -> Option<()>

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fn update_buffer(&mut self, t: &Token)

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fn need_space_prefix(&self) -> bool

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fn parse(self, tokens: TokenStream) -> Option<Vec<ParsedMacroArg>>

Returns a collection of parsed macro def’s arguments.

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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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 Twhere 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> 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 Twhere 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, U> TryFrom<U> for Twhere 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 Twhere 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.

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: 104 bytes