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commit
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4
.gitignore
vendored
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4
.gitignore
vendored
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**/*/target
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*/target
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/target
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Cargo.lock
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5
Cargo.toml
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5
Cargo.toml
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[workspace]
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members = [
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"rouille_proc_macro",
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"examples"
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]
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28
README.md
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28
README.md
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# rouille
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Aren't you *le tired* from writing Rust programs in English? Do you like saying
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"merde" a lot? Would you like to try something different, in an exotic
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language?
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**rouille** (French for *Rust*) is here to save the day, and allows one to
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write Rust programs in French. See the [examples](./examples/src/main.rs) for
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more details about what can be done with it.
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## contributions
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First of all, *merci beaucoup* for considering participating to this joke, the
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French government will thank you later! Feel free to throw in a few identifiers
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here and there, and open a pull-request against the `principale` (French for
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`main`) branch.
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## but why would you do zat
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- horsin around
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- making a bit of fun of programming languages using French keywords
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- winking at [Marcel](https://github.com/brouberol/marcel)
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- playing with raw proc macros
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- c'est chic
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## license
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[WTFPL](http://www.wtfpl.net/).
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9
examples/Cargo.toml
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9
examples/Cargo.toml
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[package]
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name = "rouille_examples"
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version = "0.1.0"
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edition = "2018"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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rouille = { path = "../rouille_proc_macro/" }
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69
examples/src/main.rs
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69
examples/src/main.rs
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rouille::rouille! {
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utilisons std::collections::Dictionnaire comme Dico;
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interface CléValeur {
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fonction écrire(&soi, clé: Chaine, valeur: Chaine);
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fonction lire(&soi, clé: Chaine) -> PeutÊtre<&Chaine>;
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}
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statique mutable DICTIONNAIRE: PeutÊtre<Dico<Chaine, Chaine>> = Rien;
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structure Concrète;
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implémentation CléValeur pour Concrète {
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fonction écrire(&soi, clé: Chaine, valeur: Chaine) {
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soit dico = dangereux {
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DICTIONNAIRE.prendre_ou_insérer_avec(Défault::défault)
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};
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dico.insérer(clé, valeur);
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}
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fonction lire(&soi, clé: Chaine) -> PeutÊtre<&Chaine> {
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soit dico = dangereux {
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DICTIONNAIRE.prendre_ou_insérer_avec(Défault::défault)
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};
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dico.lire(&clé)
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}
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}
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public(cagette) fonction peut_etre(i: u32) -> PeutÊtre<Résultat<u32, Chaine>> {
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si i % 2 == 1 {
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si i == 42 {
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Quelque(Arf(Chaine::depuis("merde")))
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} sinon {
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Quelque(Bien(33))
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}
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} sinon {
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Rien
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}
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}
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asynchrone fonction exemple() {
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}
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asynchrone fonction exemple2() {
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exemple().attend;
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}
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fonction principale() {
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soit mutable x = 31;
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correspond x {
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42 => {
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affiche!("omelette du fromage")
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}
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_ => affiche!("voila")
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}
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pour i de 0..10 {
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soit val = boucle {
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arrête i;
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};
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tant que x < val {
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x += 1;
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}
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x = si soit Quelque(resultat) = peut_etre(i) {
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resultat.déballer()
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} else { 12 };
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}
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}
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}
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11
rouille_proc_macro/Cargo.toml
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11
rouille_proc_macro/Cargo.toml
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[package]
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name = "rouille"
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version = "0.1.0"
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edition = "2018"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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[lib]
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proc-macro = true
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105
rouille_proc_macro/src/lib.rs
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105
rouille_proc_macro/src/lib.rs
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use proc_macro::{Group, Ident, TokenStream, TokenTree};
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fn replace_ident(ident: Ident) -> Option<TokenTree> {
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let ident_str = ident.to_string();
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let new_str = match ident_str.as_str() {
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"Arf" => "Err",
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"Bien" => "Ok",
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"Chaine" => "String",
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"Dictionnaire" => "HashMap",
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"Défault" => "Default",
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"Erreur" => "Error",
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"PeutÊtre" => "Option",
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"Quelque" => "Some",
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"Rien" => "None",
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"Résultat" => "Result",
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"Soi" => "Self",
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"affiche" => "println",
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"arrête" => "break",
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"asynchrone" => "async",
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"attend" => "await",
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"boucle" => "loop",
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"bouge" => "move",
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"cagette" => "crate",
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"comme" => "as",
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"constant" => "const",
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"correspond" => "match",
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"dangereux" => "unsafe",
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"de" => "in",
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"depuis" => "from",
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"dynamique" => "dyn",
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"déballer" => "unwrap",
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"défault" => "default",
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"es" => "io",
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"externe" => "extern",
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"faux" => "false",
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"fonction" => "fn",
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"génial" => "super",
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"implémentation" => "impl",
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"insérer" => "insert",
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"interface" => "trait",
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"lire" => "get",
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"module" => "mod",
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"mutable" => "mut",
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"nouveau" => "new",
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"où" => "where",
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"pour" => "for",
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"prendre_ou_insérer_avec" => "get_or_insert_with",
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"principale" => "main",
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"public" => "pub",
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"que" => None?,
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"renvoie" => "return",
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"si" => "if",
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"sinon" => "else",
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"soi" => "self",
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"soit" => "let",
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"statique" => "static",
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"structure" => "struct",
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"suppose" => "expect",
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"tant" => "while",
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"utilisons" => "use",
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"vrai" => "true",
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"énumération" => "enum",
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_ => &ident_str,
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};
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let new_ident = Ident::new(new_str, ident.span());
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Some(TokenTree::Ident(new_ident))
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}
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fn replace_tree(tok: TokenTree, out: &mut Vec<TokenTree>) {
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match tok {
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TokenTree::Group(group) => {
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let mut group_elem = Vec::new();
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replace_stream(group.stream(), &mut group_elem);
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let mut new_stream = TokenStream::new();
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new_stream.extend(group_elem);
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out.push(TokenTree::Group(Group::new(group.delimiter(), new_stream)));
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}
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TokenTree::Ident(ident) => {
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if let Some(ident) = replace_ident(ident) {
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out.push(ident);
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}
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}
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TokenTree::Punct(..) | TokenTree::Literal(..) => {
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out.push(tok);
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}
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}
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}
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fn replace_stream(ts: TokenStream, out: &mut Vec<TokenTree>) {
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for tok in ts {
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replace_tree(tok, out)
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}
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}
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#[proc_macro]
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pub fn rouille(item: TokenStream) -> TokenStream {
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let mut returned = Vec::new();
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replace_stream(item, &mut returned);
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let mut out = TokenStream::new();
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out.extend(returned);
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out
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}
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