compiler/rustc_ast_pretty/src/helpers.rs

   1 use crate::pp::Printer;
   2 use std::borrow::Cow;
   3
   4 impl Printer {
   5     pub fn word_space<W: Into<Cow<'static, str>>>(&mut self, w: W) {
   6         self.word(w);
   7         self.space();
   8     }
   9
  10     pub fn popen(&mut self) {
  11         self.word("(");
  12     }
  13
  14     pub fn pclose(&mut self) {
  15         self.word(")");
  16     }
  17
  18     pub fn hardbreak_if_not_bol(&mut self) {
  19         if !self.is_beginning_of_line() {
  20             self.hardbreak()
  21         }
  22     }
  23
  24     pub fn space_if_not_bol(&mut self) {
  25         if !self.is_beginning_of_line() {
  26             self.space();
  27         }
  28     }
  29
  30     pub fn nbsp(&mut self) {
  31         self.word(" ")
  32     }
  33
  34     pub fn word_nbsp<S: Into<Cow<'static, str>>>(&mut self, w: S) {
  35         self.word(w);
  36         self.nbsp()
  37     }
  38
  39     /// Synthesizes a comment that was not textually present in the original
  40     /// source file.
  41     pub fn synth_comment(&mut self, text: impl Into<Cow<'static, str>>) {
  42         self.word("/*");
  43         self.space();
  44         self.word(text);
  45         self.space();
  46         self.word("*/")
  47     }
  48 }