Trait rustc_ap_rustc_ast_pretty::pprust::state::PrintState

pub trait PrintState<'a>: Deref<Target = Printer> + DerefMut {
    fn comments(&mut self) -> &mut Option<Comments<'a>>;
    fn print_ident(&mut self, ident: Ident);
    fn print_generic_args(
        &mut self, 
        args: &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) { ... }
    fn print_comment(&mut self, cmnt: &Comment) { ... }
    fn next_comment(&mut self) -> Option<Comment> { ... }
    fn print_literal(&mut self, lit: &Lit) { ... }
    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]) { ... }
    fn print_outer_attributes(&mut self, attrs: &[Attribute]) { ... }
    fn print_inner_attributes_inline(&mut self, attrs: &[Attribute]) { ... }
    fn print_outer_attributes_inline(&mut self, attrs: &[Attribute]) { ... }
    fn print_either_attributes(
        &mut self, 
        attrs: &[Attribute], 
        kind: AttrStyle, 
        is_inline: bool, 
        trailing_hardbreak: 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) { ... }
    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: DelimToken, 
        tts: &TokenStream, 
        convert_dollar_crate: bool, 
        span: Span
    ) { ... }
    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: Into<Cow<'static, str>>>(&mut self, w: S) { ... }
    fn bopen(&mut self) { ... }
    fn bclose_maybe_open(&mut self, span: Span, close_box: bool) { ... }
    fn bclose(&mut self, span: Span) { ... }
    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) -> String { ... }
    fn token_kind_to_string_ext(
        &self, 
        tok: &TokenKind, 
        convert_dollar_crate: Option<Span>
    ) -> String { ... }
    fn token_to_string(&self, token: &Token) -> String { ... }
    fn token_to_string_ext(
        &self, 
        token: &Token, 
        convert_dollar_crate: bool
    ) -> String { ... }
    fn ty_to_string(&self, ty: &Ty) -> String { ... }
    fn bounds_to_string(&self, bounds: &[GenericBound]) -> String { ... }
    fn pat_to_string(&self, pat: &Pat) -> String { ... }
    fn expr_to_string(&self, e: &Expr) -> 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 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(&self, f: impl FnOnce(&mut State<'_>)) -> String { ... }
}

Required methods

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

fn print_ident(&mut self, ident: Ident)

fn print_generic_args(&mut self, args: &GenericArgs, colons_before_params: bool)

Provided methods

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)

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

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

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

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])

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

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

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

fn print_either_attributes(
    &mut self,
    attrs: &[Attribute],
    kind: AttrStyle,
    is_inline: bool,
    trailing_hardbreak: 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: DelimToken,
    tts: &TokenStream,
    convert_dollar_crate: bool,
    span: Span
)

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

fn bopen(&mut self)

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

fn bclose(&mut self, span: Span)

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) -> String

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>
) -> String

fn token_to_string(&self, token: &Token) -> String

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

fn token_to_string_ext(
    &self,
    token: &Token,
    convert_dollar_crate: bool
) -> String

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

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

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

fn expr_to_string(&self, e: &Expr) -> 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 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(&self, f: impl FnOnce(&mut State<'_>)) -> String

Implementors

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, args: &GenericArgs, colons_before_params: bool)