Struct syn::token::Brace

source ·

pub struct Brace {
    pub span: Span,
}

Expand description

{...}

Fields§

§span: Span

Implementations§

source §

impl Brace

source

pub fn surround<F>(&self, tokens: &mut TokenStream, f: F)where
F: FnOnce(&mut TokenStream),

Examples found in repository ?

src/data.rs (lines 439-441)

        fn to_tokens(&self, tokens: &mut TokenStream) {
            self.brace_token.surround(tokens, |tokens| {
                self.named.to_tokens(tokens);
            });
        }

More examples

Hide additional examples

src/stmt.rs (lines 315-317)

        fn to_tokens(&self, tokens: &mut TokenStream) {
            self.brace_token.surround(tokens, |tokens| {
                tokens.append_all(&self.stmts);
            });
        }

src/item.rs (lines 2836-2839)

        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.vis.to_tokens(tokens);
            self.sig.to_tokens(tokens);
            self.block.brace_token.surround(tokens, |tokens| {
                tokens.append_all(self.attrs.inner());
                tokens.append_all(&self.block.stmts);
            });
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ItemMod {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.vis.to_tokens(tokens);
            self.mod_token.to_tokens(tokens);
            self.ident.to_tokens(tokens);
            if let Some((brace, items)) = &self.content {
                brace.surround(tokens, |tokens| {
                    tokens.append_all(self.attrs.inner());
                    tokens.append_all(items);
                });
            } else {
                TokensOrDefault(&self.semi).to_tokens(tokens);
            }
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ItemForeignMod {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.abi.to_tokens(tokens);
            self.brace_token.surround(tokens, |tokens| {
                tokens.append_all(self.attrs.inner());
                tokens.append_all(&self.items);
            });
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ItemType {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.vis.to_tokens(tokens);
            self.type_token.to_tokens(tokens);
            self.ident.to_tokens(tokens);
            self.generics.to_tokens(tokens);
            self.generics.where_clause.to_tokens(tokens);
            self.eq_token.to_tokens(tokens);
            self.ty.to_tokens(tokens);
            self.semi_token.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ItemEnum {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.vis.to_tokens(tokens);
            self.enum_token.to_tokens(tokens);
            self.ident.to_tokens(tokens);
            self.generics.to_tokens(tokens);
            self.generics.where_clause.to_tokens(tokens);
            self.brace_token.surround(tokens, |tokens| {
                self.variants.to_tokens(tokens);
            });
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ItemStruct {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.vis.to_tokens(tokens);
            self.struct_token.to_tokens(tokens);
            self.ident.to_tokens(tokens);
            self.generics.to_tokens(tokens);
            match &self.fields {
                Fields::Named(fields) => {
                    self.generics.where_clause.to_tokens(tokens);
                    fields.to_tokens(tokens);
                }
                Fields::Unnamed(fields) => {
                    fields.to_tokens(tokens);
                    self.generics.where_clause.to_tokens(tokens);
                    TokensOrDefault(&self.semi_token).to_tokens(tokens);
                }
                Fields::Unit => {
                    self.generics.where_clause.to_tokens(tokens);
                    TokensOrDefault(&self.semi_token).to_tokens(tokens);
                }
            }
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ItemUnion {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.vis.to_tokens(tokens);
            self.union_token.to_tokens(tokens);
            self.ident.to_tokens(tokens);
            self.generics.to_tokens(tokens);
            self.generics.where_clause.to_tokens(tokens);
            self.fields.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ItemTrait {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.vis.to_tokens(tokens);
            self.unsafety.to_tokens(tokens);
            self.auto_token.to_tokens(tokens);
            self.trait_token.to_tokens(tokens);
            self.ident.to_tokens(tokens);
            self.generics.to_tokens(tokens);
            if !self.supertraits.is_empty() {
                TokensOrDefault(&self.colon_token).to_tokens(tokens);
                self.supertraits.to_tokens(tokens);
            }
            self.generics.where_clause.to_tokens(tokens);
            self.brace_token.surround(tokens, |tokens| {
                tokens.append_all(self.attrs.inner());
                tokens.append_all(&self.items);
            });
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ItemTraitAlias {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.vis.to_tokens(tokens);
            self.trait_token.to_tokens(tokens);
            self.ident.to_tokens(tokens);
            self.generics.to_tokens(tokens);
            self.eq_token.to_tokens(tokens);
            self.bounds.to_tokens(tokens);
            self.generics.where_clause.to_tokens(tokens);
            self.semi_token.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ItemImpl {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.defaultness.to_tokens(tokens);
            self.unsafety.to_tokens(tokens);
            self.impl_token.to_tokens(tokens);
            self.generics.to_tokens(tokens);
            if let Some((polarity, path, for_token)) = &self.trait_ {
                polarity.to_tokens(tokens);
                path.to_tokens(tokens);
                for_token.to_tokens(tokens);
            }
            self.self_ty.to_tokens(tokens);
            self.generics.where_clause.to_tokens(tokens);
            self.brace_token.surround(tokens, |tokens| {
                tokens.append_all(self.attrs.inner());
                tokens.append_all(&self.items);
            });
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ItemMacro {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.mac.path.to_tokens(tokens);
            self.mac.bang_token.to_tokens(tokens);
            self.ident.to_tokens(tokens);
            match &self.mac.delimiter {
                MacroDelimiter::Paren(paren) => {
                    paren.surround(tokens, |tokens| self.mac.tokens.to_tokens(tokens));
                }
                MacroDelimiter::Brace(brace) => {
                    brace.surround(tokens, |tokens| self.mac.tokens.to_tokens(tokens));
                }
                MacroDelimiter::Bracket(bracket) => {
                    bracket.surround(tokens, |tokens| self.mac.tokens.to_tokens(tokens));
                }
            }
            self.semi_token.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ItemMacro2 {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.vis.to_tokens(tokens);
            self.macro_token.to_tokens(tokens);
            self.ident.to_tokens(tokens);
            self.rules.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for UsePath {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            self.ident.to_tokens(tokens);
            self.colon2_token.to_tokens(tokens);
            self.tree.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for UseName {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            self.ident.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for UseRename {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            self.ident.to_tokens(tokens);
            self.as_token.to_tokens(tokens);
            self.rename.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for UseGlob {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            self.star_token.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for UseGroup {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            self.brace_token.surround(tokens, |tokens| {
                self.items.to_tokens(tokens);
            });
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for TraitItemConst {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.const_token.to_tokens(tokens);
            self.ident.to_tokens(tokens);
            self.colon_token.to_tokens(tokens);
            self.ty.to_tokens(tokens);
            if let Some((eq_token, default)) = &self.default {
                eq_token.to_tokens(tokens);
                default.to_tokens(tokens);
            }
            self.semi_token.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for TraitItemMethod {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.sig.to_tokens(tokens);
            match &self.default {
                Some(block) => {
                    block.brace_token.surround(tokens, |tokens| {
                        tokens.append_all(self.attrs.inner());
                        tokens.append_all(&block.stmts);
                    });
                }
                None => {
                    TokensOrDefault(&self.semi_token).to_tokens(tokens);
                }
            }
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for TraitItemType {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.type_token.to_tokens(tokens);
            self.ident.to_tokens(tokens);
            self.generics.to_tokens(tokens);
            if !self.bounds.is_empty() {
                TokensOrDefault(&self.colon_token).to_tokens(tokens);
                self.bounds.to_tokens(tokens);
            }
            if let Some((eq_token, default)) = &self.default {
                eq_token.to_tokens(tokens);
                default.to_tokens(tokens);
            }
            self.generics.where_clause.to_tokens(tokens);
            self.semi_token.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for TraitItemMacro {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.mac.to_tokens(tokens);
            self.semi_token.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ImplItemConst {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.vis.to_tokens(tokens);
            self.defaultness.to_tokens(tokens);
            self.const_token.to_tokens(tokens);
            self.ident.to_tokens(tokens);
            self.colon_token.to_tokens(tokens);
            self.ty.to_tokens(tokens);
            self.eq_token.to_tokens(tokens);
            self.expr.to_tokens(tokens);
            self.semi_token.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ImplItemMethod {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.vis.to_tokens(tokens);
            self.defaultness.to_tokens(tokens);
            self.sig.to_tokens(tokens);
            if self.block.stmts.len() == 1 {
                if let Stmt::Item(Item::Verbatim(verbatim)) = &self.block.stmts[0] {
                    if verbatim.to_string() == ";" {
                        verbatim.to_tokens(tokens);
                        return;
                    }
                }
            }
            self.block.brace_token.surround(tokens, |tokens| {
                tokens.append_all(self.attrs.inner());
                tokens.append_all(&self.block.stmts);
            });
        }

src/pat.rs (lines 796-803)

        fn to_tokens(&self, tokens: &mut TokenStream) {
            tokens.append_all(self.attrs.outer());
            self.path.to_tokens(tokens);
            self.brace_token.surround(tokens, |tokens| {
                self.fields.to_tokens(tokens);
                // NOTE: We need a comma before the dot2 token if it is present.
                if !self.fields.empty_or_trailing() && self.dot2_token.is_some() {
                    <Token![,]>::default().to_tokens(tokens);
                }
                self.dot2_token.to_tokens(tokens);
            });
        }

src/mac.rs (line 211)

        fn to_tokens(&self, tokens: &mut TokenStream) {
            self.path.to_tokens(tokens);
            self.bang_token.to_tokens(tokens);
            match &self.delimiter {
                MacroDelimiter::Paren(paren) => {
                    paren.surround(tokens, |tokens| self.tokens.to_tokens(tokens));
                }
                MacroDelimiter::Brace(brace) => {
                    brace.surround(tokens, |tokens| self.tokens.to_tokens(tokens));
                }
                MacroDelimiter::Bracket(bracket) => {
                    bracket.surround(tokens, |tokens| self.tokens.to_tokens(tokens));
                }
            }
        }

src/expr.rs (lines 3132-3134)

    fn maybe_wrap_else(tokens: &mut TokenStream, else_: &Option<(Token![else], Box<Expr>)>) {
        if let Some((else_token, else_)) = else_ {
            else_token.to_tokens(tokens);

            // If we are not one of the valid expressions to exist in an else
            // clause, wrap ourselves in a block.
            match **else_ {
                Expr::If(_) | Expr::Block(_) => {
                    else_.to_tokens(tokens);
                }
                _ => {
                    token::Brace::default().surround(tokens, |tokens| {
                        else_.to_tokens(tokens);
                    });
                }
            }
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprLet {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.let_token.to_tokens(tokens);
            self.pat.to_tokens(tokens);
            self.eq_token.to_tokens(tokens);
            wrap_bare_struct(tokens, &self.expr);
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprIf {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.if_token.to_tokens(tokens);
            wrap_bare_struct(tokens, &self.cond);
            self.then_branch.to_tokens(tokens);
            maybe_wrap_else(tokens, &self.else_branch);
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprWhile {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.label.to_tokens(tokens);
            self.while_token.to_tokens(tokens);
            wrap_bare_struct(tokens, &self.cond);
            self.body.brace_token.surround(tokens, |tokens| {
                inner_attrs_to_tokens(&self.attrs, tokens);
                tokens.append_all(&self.body.stmts);
            });
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprForLoop {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.label.to_tokens(tokens);
            self.for_token.to_tokens(tokens);
            self.pat.to_tokens(tokens);
            self.in_token.to_tokens(tokens);
            wrap_bare_struct(tokens, &self.expr);
            self.body.brace_token.surround(tokens, |tokens| {
                inner_attrs_to_tokens(&self.attrs, tokens);
                tokens.append_all(&self.body.stmts);
            });
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprLoop {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.label.to_tokens(tokens);
            self.loop_token.to_tokens(tokens);
            self.body.brace_token.surround(tokens, |tokens| {
                inner_attrs_to_tokens(&self.attrs, tokens);
                tokens.append_all(&self.body.stmts);
            });
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprMatch {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.match_token.to_tokens(tokens);
            wrap_bare_struct(tokens, &self.expr);
            self.brace_token.surround(tokens, |tokens| {
                inner_attrs_to_tokens(&self.attrs, tokens);
                for (i, arm) in self.arms.iter().enumerate() {
                    arm.to_tokens(tokens);
                    // Ensure that we have a comma after a non-block arm, except
                    // for the last one.
                    let is_last = i == self.arms.len() - 1;
                    if !is_last && requires_terminator(&arm.body) && arm.comma.is_none() {
                        <Token![,]>::default().to_tokens(tokens);
                    }
                }
            });
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprAsync {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.async_token.to_tokens(tokens);
            self.capture.to_tokens(tokens);
            self.block.to_tokens(tokens);
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprAwait {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.base.to_tokens(tokens);
            self.dot_token.to_tokens(tokens);
            self.await_token.to_tokens(tokens);
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprTryBlock {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.try_token.to_tokens(tokens);
            self.block.to_tokens(tokens);
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprYield {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.yield_token.to_tokens(tokens);
            self.expr.to_tokens(tokens);
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprClosure {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.movability.to_tokens(tokens);
            self.asyncness.to_tokens(tokens);
            self.capture.to_tokens(tokens);
            self.or1_token.to_tokens(tokens);
            self.inputs.to_tokens(tokens);
            self.or2_token.to_tokens(tokens);
            self.output.to_tokens(tokens);
            self.body.to_tokens(tokens);
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprUnsafe {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.unsafe_token.to_tokens(tokens);
            self.block.brace_token.surround(tokens, |tokens| {
                inner_attrs_to_tokens(&self.attrs, tokens);
                tokens.append_all(&self.block.stmts);
            });
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprBlock {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.label.to_tokens(tokens);
            self.block.brace_token.surround(tokens, |tokens| {
                inner_attrs_to_tokens(&self.attrs, tokens);
                tokens.append_all(&self.block.stmts);
            });
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprAssign {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.left.to_tokens(tokens);
            self.eq_token.to_tokens(tokens);
            self.right.to_tokens(tokens);
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprAssignOp {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.left.to_tokens(tokens);
            self.op.to_tokens(tokens);
            self.right.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprField {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.base.to_tokens(tokens);
            self.dot_token.to_tokens(tokens);
            self.member.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for Member {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            match self {
                Member::Named(ident) => ident.to_tokens(tokens),
                Member::Unnamed(index) => index.to_tokens(tokens),
            }
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for Index {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            let mut lit = Literal::i64_unsuffixed(i64::from(self.index));
            lit.set_span(self.span);
            tokens.append(lit);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprIndex {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.expr.to_tokens(tokens);
            self.bracket_token.surround(tokens, |tokens| {
                self.index.to_tokens(tokens);
            });
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for RangeLimits {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            match self {
                RangeLimits::HalfOpen(t) => t.to_tokens(tokens),
                RangeLimits::Closed(t) => t.to_tokens(tokens),
            }
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprRange {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.from.to_tokens(tokens);
            self.limits.to_tokens(tokens);
            self.to.to_tokens(tokens);
        }
    }

    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprPath {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            path::printing::print_path(tokens, &self.qself, &self.path);
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprReference {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.and_token.to_tokens(tokens);
            self.mutability.to_tokens(tokens);
            self.expr.to_tokens(tokens);
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprBreak {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.break_token.to_tokens(tokens);
            self.label.to_tokens(tokens);
            self.expr.to_tokens(tokens);
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprContinue {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.continue_token.to_tokens(tokens);
            self.label.to_tokens(tokens);
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprReturn {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.return_token.to_tokens(tokens);
            self.expr.to_tokens(tokens);
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprMacro {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.mac.to_tokens(tokens);
        }
    }

    #[cfg(feature = "full")]
    #[cfg_attr(doc_cfg, doc(cfg(feature = "printing")))]
    impl ToTokens for ExprStruct {
        fn to_tokens(&self, tokens: &mut TokenStream) {
            outer_attrs_to_tokens(&self.attrs, tokens);
            self.path.to_tokens(tokens);
            self.brace_token.surround(tokens, |tokens| {
                self.fields.to_tokens(tokens);
                if let Some(dot2_token) = &self.dot2_token {
                    dot2_token.to_tokens(tokens);
                } else if self.rest.is_some() {
                    Token![..](Span::call_site()).to_tokens(tokens);
                }
                self.rest.to_tokens(tokens);
            });
        }