Struct rustc_hir_pretty::State

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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),
}

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§s: Printer§comments: Option<Comments<'a>>§attrs: &'a dyn Fn(HirId) -> &'a [Attribute]§ann: &'a (dyn PpAnn + 'a)

Implementations§

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impl<'a> State<'a>

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

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

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impl<'a> State<'a>

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

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

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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,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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pub(crate) fn print_variant_struct( &mut self, span: Span, fields: &[FieldDef<'_>], )

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

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

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

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

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

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

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

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

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

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

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

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

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pub(crate) fn print_array_length(&mut self, len: &ArrayLen<'_>)

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

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

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

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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 { ... }.

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

Prints expr or (expr) when needs_par holds.

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

Print a let pat = expr expression.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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pub(crate) fn print_assoc_item_constraint( &mut self, constraint: &AssocItemConstraint<'_>, )

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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pub(crate) fn print_safety(&mut self, s: Safety)

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

Methods from Deref<Target = Printer>§

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pub fn word_space<W>(&mut self, w: W)
where W: Into<Cow<'static, str>>,

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pub fn popen(&mut self)

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pub fn pclose(&mut self)

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pub fn hardbreak_if_not_bol(&mut self)

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pub fn space_if_not_bol(&mut self)

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pub fn nbsp(&mut self)

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

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pub fn synth_comment(&mut self, text: impl Into<Cow<'static, str>>)

Synthesizes a comment that was not textually present in the original source file.

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pub fn rbox(&mut self, indent: isize, breaks: Breaks)

“raw box”

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pub fn ibox(&mut self, indent: isize)

Inconsistent breaking box

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pub fn cbox(&mut self, indent: isize)

Consistent breaking box

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pub fn visual_align(&mut self)

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

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pub fn end(&mut self)

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pub fn word<S>(&mut self, wrd: S)
where S: Into<Cow<'static, str>>,

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pub fn zerobreak(&mut self)

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pub fn space(&mut self)

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pub fn hardbreak(&mut self)

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pub fn is_beginning_of_line(&self) -> bool

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pub fn trailing_comma(&mut self)

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pub fn trailing_comma_or_space(&mut self)

Trait Implementations§

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impl Deref for State<'_>

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type Target = Printer

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl DerefMut for State<'_>

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

Mutably dereferences the value.
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impl<'a> PrintState<'a> for State<'a>

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

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

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fn ann_post(&mut self, ident: Ident)

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

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fn print_ident(&mut self, ident: Ident)

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

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

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

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fn print_comment(&mut self, cmnt: Comment)

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fn peek_comment<'b>(&'b self) -> Option<&'b Comment>
where 'a: 'b,

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

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

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fn print_remaining_comments(&mut self)

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

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

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

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

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

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

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

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

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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, )

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

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

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

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

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fn bopen(&mut self)

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

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

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

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

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

Print the token kind precisely, without converting $crate into its respective crate name.
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fn token_kind_to_string_ext( &self, tok: &TokenKind, convert_dollar_crate: Option<Span>, ) -> Cow<'static, str>

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

Print the token precisely, without converting $crate into its respective crate name.
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fn token_to_string_ext( &self, token: &Token, convert_dollar_crate: bool, ) -> Cow<'static, str>

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

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

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

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

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

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

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

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

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

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

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

Auto Trait Implementations§

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impl<'a> Freeze for State<'a>

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impl<'a> !RefUnwindSafe for State<'a>

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impl<'a> !Send for State<'a>

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impl<'a> !Sync for State<'a>

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impl<'a> Unpin for State<'a>

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impl<'a> !UnwindSafe for State<'a>

Blanket Implementations§

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impl<T> Aligned for T

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const ALIGN: Alignment = _

Alignment of Self.
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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<'a, T> Captures<'a> for T
where T: ?Sized,

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: 256 bytes