112 lines
3.1 KiB
Rust
112 lines
3.1 KiB
Rust
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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"Défaut" => "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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"code_inaccessible" => "unreachable_code",
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"comme" => "as",
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"constant" => "const",
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"convention" => "trait",
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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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"défaut" => "default",
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"en_réf" => "as_ref",
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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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"insérer" => "insert",
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"lire" => "get",
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"légal" => "allow",
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"merde" | "calisse" | "oups" => "panic",
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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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"réalisation" => "impl",
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"réf" => "ref",
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"selon" => "match",
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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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"vers" => "into",
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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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