Struct rustc_hir_pretty::State

pub struct State<'a> {
    pub s: Printer,
    pub(crate) comments: Option<Comments<'a>>,
    pub(crate) attrs: &'a dyn Fn(HirId) -> &'a [Attribute],
    pub(crate) ann: &'a (dyn PpAnn + 'a),
}

Fields

s: Printer

comments: Option<Comments<'a>>

attrs: &'a dyn Fn(HirId) -> &'a [Attribute]

ann: &'a (dyn PpAnn + 'a)

Implementations

impl<'a> State<'a>

pub(crate) fn attrs(&self, id: HirId) -> &'a [Attribute]

pub(crate) fn print_node(&mut self, node: Node<'_>)

impl<'a> State<'a>

pub(crate) fn bclose_maybe_open(&mut self, span: Span, close_box: bool)

pub(crate) fn bclose(&mut self, span: Span)

pub(crate) fn commasep_cmnt<T, F, G>( &mut self, b: Breaks, elts: &[T], op: F, get_span: G )where F: FnMut(&mut State<'_>, &T), G: FnMut(&T) -> Span,

pub(crate) fn commasep_exprs(&mut self, b: Breaks, exprs: &[Expr<'_>])

pub(crate) fn print_mod(&mut self, _mod: &Mod<'_>, attrs: &[Attribute])

pub(crate) fn print_opt_lifetime(&mut self, lifetime: &Lifetime)

pub(crate) fn print_type(&mut self, ty: &Ty<'_>)

pub(crate) fn print_foreign_item(&mut self, item: &ForeignItem<'_>)

pub(crate) fn print_associated_const( &mut self, ident: Ident, generics: &Generics<'_>, ty: &Ty<'_>, default: Option<BodyId> )

pub(crate) fn print_associated_type( &mut self, ident: Ident, generics: &Generics<'_>, bounds: Option<GenericBounds<'_>>, ty: Option<&Ty<'_>> )

pub(crate) fn print_item_type( &mut self, item: &Item<'_>, generics: &Generics<'_>, inner: impl Fn(&mut Self) )

pub(crate) fn print_item(&mut self, item: &Item<'_>)

pub(crate) fn print_trait_ref(&mut self, t: &TraitRef<'_>)

pub(crate) fn print_formal_generic_params( &mut self, generic_params: &[GenericParam<'_>] )

pub(crate) fn print_poly_trait_ref(&mut self, t: &PolyTraitRef<'_>)

pub(crate) fn print_enum_def( &mut self, enum_definition: &EnumDef<'_>, generics: &Generics<'_>, name: Symbol, span: Span )

pub(crate) fn print_variants(&mut self, variants: &[Variant<'_>], span: Span)

pub(crate) fn print_defaultness(&mut self, defaultness: Defaultness)

pub(crate) fn print_struct( &mut self, struct_def: &VariantData<'_>, generics: &Generics<'_>, name: Symbol, span: Span, print_finalizer: bool )

pub(crate) fn print_variant(&mut self, v: &Variant<'_>)

pub(crate) fn print_method_sig( &mut self, ident: Ident, m: &FnSig<'_>, generics: &Generics<'_>, arg_names: &[Ident], body_id: Option<BodyId> )

pub(crate) fn print_trait_item(&mut self, ti: &TraitItem<'_>)

pub(crate) fn print_impl_item(&mut self, ii: &ImplItem<'_>)

pub(crate) fn print_local( &mut self, init: Option<&Expr<'_>>, els: Option<&Block<'_>>, decl: impl Fn(&mut Self) )

pub(crate) fn print_stmt(&mut self, st: &Stmt<'_>)

pub(crate) fn print_block(&mut self, blk: &Block<'_>)

pub(crate) fn print_block_unclosed(&mut self, blk: &Block<'_>)

pub(crate) fn print_block_with_attrs( &mut self, blk: &Block<'_>, attrs: &[Attribute] )

pub(crate) fn print_block_maybe_unclosed( &mut self, blk: &Block<'_>, attrs: &[Attribute], close_box: bool )

pub(crate) fn print_else(&mut self, els: Option<&Expr<'_>>)

pub(crate) fn print_if( &mut self, test: &Expr<'_>, blk: &Expr<'_>, elseopt: Option<&Expr<'_>> )

pub(crate) fn print_array_length(&mut self, len: &ArrayLen)

pub(crate) fn print_anon_const(&mut self, constant: &AnonConst)

pub(crate) fn print_call_post(&mut self, args: &[Expr<'_>])

pub(crate) fn print_expr_maybe_paren(&mut self, expr: &Expr<'_>, prec: i8)

pub(crate) fn print_expr_as_cond(&mut self, expr: &Expr<'_>)

Prints an expr using syntax that’s acceptable in a condition position, such as the cond in if cond { ... }.

pub(crate) fn print_expr_cond_paren(&mut self, expr: &Expr<'_>, needs_par: bool)

Prints expr or (expr) when needs_par holds.

pub(crate) fn print_let( &mut self, pat: &Pat<'_>, ty: Option<&Ty<'_>>, init: &Expr<'_> )

Print a let pat = expr expression.

pub(crate) fn cond_needs_par(expr: &Expr<'_>) -> bool

pub(crate) fn print_expr_vec(&mut self, exprs: &[Expr<'_>])

pub(crate) fn print_inline_const(&mut self, constant: &ConstBlock)

pub(crate) fn print_expr_repeat(&mut self, element: &Expr<'_>, count: &ArrayLen)

pub(crate) fn print_expr_struct( &mut self, qpath: &QPath<'_>, fields: &[ExprField<'_>], wth: Option<&Expr<'_>> )

pub(crate) fn print_expr_field(&mut self, field: &ExprField<'_>)

pub(crate) fn print_expr_tup(&mut self, exprs: &[Expr<'_>])

pub(crate) fn print_expr_call(&mut self, func: &Expr<'_>, args: &[Expr<'_>])

pub(crate) fn print_expr_method_call( &mut self, segment: &PathSegment<'_>, receiver: &Expr<'_>, args: &[Expr<'_>] )

pub(crate) fn print_expr_binary( &mut self, op: BinOp, lhs: &Expr<'_>, rhs: &Expr<'_> )

pub(crate) fn print_expr_unary(&mut self, op: UnOp, expr: &Expr<'_>)

pub(crate) fn print_expr_addr_of( &mut self, kind: BorrowKind, mutability: Mutability, expr: &Expr<'_> )

pub(crate) fn print_literal(&mut self, lit: &Lit)

pub(crate) fn print_inline_asm(&mut self, asm: &InlineAsm<'_>)

pub(crate) fn print_expr(&mut self, expr: &Expr<'_>)

pub(crate) fn print_local_decl(&mut self, loc: &Local<'_>)

pub(crate) fn print_name(&mut self, name: Symbol)

pub(crate) fn print_path<R>( &mut self, path: &Path<'_, R>, colons_before_params: bool )

pub(crate) fn print_path_segment(&mut self, segment: &PathSegment<'_>)

pub(crate) fn print_qpath( &mut self, qpath: &QPath<'_>, colons_before_params: bool )

pub(crate) fn print_generic_args( &mut self, generic_args: &GenericArgs<'_>, colons_before_params: bool )

pub(crate) fn print_type_binding(&mut self, binding: &TypeBinding<'_>)

pub(crate) fn print_pat(&mut self, pat: &Pat<'_>)

pub(crate) fn print_patfield(&mut self, field: &PatField<'_>)

pub(crate) fn print_param(&mut self, arg: &Param<'_>)

pub(crate) fn print_arm(&mut self, arm: &Arm<'_>)

pub(crate) fn print_fn( &mut self, decl: &FnDecl<'_>, header: FnHeader, name: Option<Symbol>, generics: &Generics<'_>, arg_names: &[Ident], body_id: Option<BodyId> )

pub(crate) fn print_closure_params( &mut self, decl: &FnDecl<'_>, body_id: BodyId )

pub(crate) fn print_capture_clause(&mut self, capture_clause: CaptureBy)

pub(crate) fn print_closure_binder( &mut self, binder: ClosureBinder, generic_params: &[GenericParam<'_>] )

pub(crate) fn print_bounds<'b>( &mut self, prefix: &'static str, bounds: impl IntoIterator<Item = &'b GenericBound<'b>> )

pub(crate) fn print_generic_params( &mut self, generic_params: &[GenericParam<'_>] )

pub(crate) fn print_generic_param(&mut self, param: &GenericParam<'_>)

pub(crate) fn print_lifetime(&mut self, lifetime: &Lifetime)

pub(crate) fn print_where_clause(&mut self, generics: &Generics<'_>)

pub(crate) fn print_mutability(&mut self, mutbl: Mutability, print_const: bool)

pub(crate) fn print_mt(&mut self, mt: &MutTy<'_>, print_const: bool)

pub(crate) fn print_fn_output(&mut self, decl: &FnDecl<'_>)

pub(crate) fn print_ty_fn( &mut self, abi: Abi, unsafety: Unsafety, decl: &FnDecl<'_>, name: Option<Symbol>, generic_params: &[GenericParam<'_>], arg_names: &[Ident] )

pub(crate) fn print_fn_header_info(&mut self, header: FnHeader)

pub(crate) fn print_constness(&mut self, s: Constness)

pub(crate) fn print_unsafety(&mut self, s: Unsafety)

pub(crate) fn print_is_auto(&mut self, s: IsAuto)

Trait Implementations

impl Deref for State<'_>

type Target = Printer

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for State<'_>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<'a> PrintState<'a> for State<'a>

fn comments(&mut self) -> &mut Option<Comments<'a>>

fn print_ident(&mut self, ident: Ident)

fn print_generic_args(&mut self, _: &GenericArgs, _colons_before_params: bool)

fn strsep<T, F>( &mut self, sep: &'static str, space_before: bool, b: Breaks, elts: &[T], op: F )where F: FnMut(&mut Self, &T),

fn commasep<T, F>(&mut self, b: Breaks, elts: &[T], op: F)where F: FnMut(&mut Self, &T),

fn maybe_print_comment(&mut self, pos: BytePos) -> bool

fn print_comment(&mut self, cmnt: &Comment)

fn next_comment(&mut self) -> Option<Comment>

fn maybe_print_trailing_comment( &mut self, span: Span, next_pos: Option<BytePos> )

fn print_remaining_comments(&mut self)

fn print_meta_item_lit(&mut self, lit: &MetaItemLit)

fn print_token_literal(&mut self, token_lit: Lit, span: Span)

fn print_string(&mut self, st: &str, style: StrStyle)

fn print_symbol(&mut self, sym: Symbol, style: StrStyle)

fn print_inner_attributes(&mut self, attrs: &[Attribute]) -> bool

fn print_inner_attributes_no_trailing_hardbreak( &mut self, attrs: &[Attribute] ) -> bool

fn print_outer_attributes(&mut self, attrs: &[Attribute]) -> bool

fn print_inner_attributes_inline(&mut self, attrs: &[Attribute]) -> bool

fn print_outer_attributes_inline(&mut self, attrs: &[Attribute]) -> bool

fn print_either_attributes( &mut self, attrs: &[Attribute], kind: AttrStyle, is_inline: bool, trailing_hardbreak: bool ) -> bool

fn print_attribute(&mut self, attr: &Attribute)

fn print_attribute_inline(&mut self, attr: &Attribute, is_inline: bool)

fn print_attr_item(&mut self, item: &AttrItem, span: Span)

fn print_meta_list_item(&mut self, item: &NestedMetaItem)

fn print_meta_item(&mut self, item: &MetaItem)

fn print_tt(&mut self, tt: &TokenTree, convert_dollar_crate: bool)

This doesn’t deserve to be called “pretty” printing, but it should be meaning-preserving. A quick hack that might help would be to look at the spans embedded in the TTs to decide where to put spaces and newlines. But it’d be better to parse these according to the grammar of the appropriate macro, transcribe back into the grammar we just parsed from, and then pretty-print the resulting AST nodes (so, e.g., we print expression arguments as expressions). It can be done! I think.

fn print_tts(&mut self, tts: &TokenStream, convert_dollar_crate: bool)

fn print_mac_common( &mut self, header: Option<MacHeader<'_>>, has_bang: bool, ident: Option<Ident>, delim: Delimiter, tts: &TokenStream, convert_dollar_crate: bool, span: Span )

fn print_mac_def( &mut self, macro_def: &MacroDef, ident: &Ident, sp: Span, print_visibility: impl FnOnce(&mut Self) )

fn print_path(&mut self, path: &Path, colons_before_params: bool, depth: usize)

fn print_path_segment( &mut self, segment: &PathSegment, colons_before_params: bool )

fn head<S>(&mut self, w: S)where S: Into<Cow<'static, str>>,

fn bopen(&mut self)

fn bclose_maybe_open(&mut self, span: Span, empty: bool, close_box: bool)

fn bclose(&mut self, span: Span, empty: bool)

fn break_offset_if_not_bol(&mut self, n: usize, off: isize)

fn nonterminal_to_string(&self, nt: &Nonterminal) -> String

fn token_kind_to_string(&self, tok: &TokenKind) -> Cow<'static, str>

Print the token kind precisely, without converting $crate into its respective crate name.

fn token_kind_to_string_ext( &self, tok: &TokenKind, convert_dollar_crate: Option<Span> ) -> Cow<'static, str>

fn token_to_string(&self, token: &Token) -> Cow<'static, str>

Print the token precisely, without converting $crate into its respective crate name.

fn token_to_string_ext( &self, token: &Token, convert_dollar_crate: bool ) -> Cow<'static, str>

fn ty_to_string(&self, ty: &Ty) -> String

fn bounds_to_string(&self, bounds: &[GenericBound]) -> String

fn where_bound_predicate_to_string( &self, where_bound_predicate: &WhereBoundPredicate ) -> String

fn pat_to_string(&self, pat: &Pat) -> String

fn expr_to_string(&self, e: &Expr) -> String

fn meta_item_lit_to_string(&self, lit: &MetaItemLit) -> String

fn tt_to_string(&self, tt: &TokenTree) -> String

fn tts_to_string(&self, tokens: &TokenStream) -> String

fn stmt_to_string(&self, stmt: &Stmt) -> String

fn item_to_string(&self, i: &Item) -> String

fn assoc_item_to_string(&self, i: &Item<AssocItemKind>) -> String

fn foreign_item_to_string(&self, i: &Item<ForeignItemKind>) -> String

fn generic_params_to_string(&self, generic_params: &[GenericParam]) -> String

fn path_to_string(&self, p: &Path) -> String

fn path_segment_to_string(&self, p: &PathSegment) -> String

fn vis_to_string(&self, v: &Visibility) -> String

fn block_to_string(&self, blk: &Block) -> String

fn meta_list_item_to_string(&self, li: &NestedMetaItem) -> String

fn attr_item_to_string(&self, ai: &AttrItem) -> String

fn attribute_to_string(&self, attr: &Attribute) -> String

fn param_to_string(&self, arg: &Param) -> String

fn to_string(f: impl FnOnce(&mut State<'_>)) -> String

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 264 bytes