Struct syn::Path

pub struct Path {
    pub leading_colon: Option<Colon2>,
    pub segments: Punctuated<PathSegment, Colon2>,
}

A path at which a named item is exported: std::collections::HashMap.

This type is available if Syn is built with the "derive" or "full" feature.

Fields

leading_colon: Option<Colon2>

segments: Punctuated<PathSegment, Colon2>

Methods

impl Path

pub fn parse_mod_style(input: ParseStream) -> Result<Self>

Parse a Path containing no path arguments on any of its segments.

This function is available if Syn is built with the "parsing" feature.

Example

use syn::{Path, Result, Token};
use syn::parse::{Parse, ParseStream};

// A simplified single `use` statement like:
//
//     use std::collections::HashMap;
//
// Note that generic parameters are not allowed in a `use` statement
// so the following must not be accepted.
//
//     use a::<b>::c;
struct SingleUse {
    use_token: Token![use],
    path: Path,
}

impl Parse for SingleUse {
    fn parse(input: ParseStream) -> Result<Self> {
        Ok(SingleUse {
            use_token: input.parse()?,
            path: input.call(Path::parse_mod_style)?,
        })
    }
}

pub fn is_ident<I>(&self, ident: I) -> bool where
    Ident: PartialEq<I>, 

Determines whether this is a path of length 1 equal to the given ident.

For them to compare equal, it must be the case that:

• the path has no leading colon,
• the number of path segments is 1,
• the first path segment has no angle bracketed or parenthesized path arguments
• and the ident of the first path segment is equal to the given one.

Trait Implementations

impl Parse for Path

fn parse(input: ParseStream) -> Result<Self>

impl<T> From<T> for Path where
    T: Into<PathSegment>, 

fn from(segment: T) -> Self

Performs the conversion.

impl Eq for Path

impl PartialEq<Path> for Path

fn eq(&self, other: &Path) -> bool

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Clone for Path

fn clone(&self) -> Path

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Path

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

Formats the value using the given formatter.

impl Hash for Path

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, 

Feeds a slice of this type into the given [Hasher].

impl ToTokens for Path

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

Write self to the given TokenStream.

fn into_token_stream(self) -> TokenStream

Convert self directly into a TokenStream object.