Trait syntax::print::pprust::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_inner_attributes(&mut self, attrs: &[Attribute]) { ... }
    fn print_inner_attributes_no_trailing_hardbreak(
        &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_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) { ... }
}

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)

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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_inner_attributes(&mut self, attrs: &[Attribute])

fn print_inner_attributes_no_trailing_hardbreak(&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_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)

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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)

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