cxx_gen/syntax/
names.rs

1use crate::syntax::symbol::Segment;
2use crate::syntax::{Lifetimes, NamedType, Pair, Symbol};
3use proc_macro2::{Ident, Span};
4use std::fmt::{self, Display};
5use std::iter;
6use syn::ext::IdentExt;
7use syn::parse::{Error, Parser, Result};
8use syn::punctuated::Punctuated;
9
10#[derive(Clone)]
11pub(crate) struct ForeignName {
12    text: String,
13}
14
15impl Pair {
16    pub(crate) fn to_symbol(&self) -> Symbol {
17        let segments = self
18            .namespace
19            .iter()
20            .map(|ident| ident as &dyn Segment)
21            .chain(iter::once(&self.cxx as &dyn Segment));
22        Symbol::from_idents(segments)
23    }
24}
25
26impl NamedType {
27    pub(crate) fn new(rust: Ident) -> Self {
28        let generics = Lifetimes {
29            lt_token: None,
30            lifetimes: Punctuated::new(),
31            gt_token: None,
32        };
33        NamedType { rust, generics }
34    }
35}
36
37impl ForeignName {
38    pub(crate) fn parse(text: &str, span: Span) -> Result<Self> {
39        // TODO: support C++ names containing whitespace (`unsigned int`) or
40        // non-alphanumeric characters (`operator++`).
41        match Ident::parse_any.parse_str(text) {
42            Ok(ident) => {
43                let text = ident.to_string();
44                Ok(ForeignName { text })
45            }
46            Err(err) => Err(Error::new(span, err)),
47        }
48    }
49}
50
51impl Display for ForeignName {
52    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
53        formatter.write_str(&self.text)
54    }
55}
56
57impl PartialEq<str> for ForeignName {
58    fn eq(&self, rhs: &str) -> bool {
59        self.text == rhs
60    }
61}
cxx_gen/syntax/names.rs

cxx_gen/syntax/
names.rs
