minify-html-onepass 0.18.1

Even faster version of minify-html
Documentation 
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use crate::err::ProcessingResult;
use crate::proc::Processor;
use crate::ErrorType;

#[derive(Copy, Clone)]
pub struct ProcessorRange {
  pub(super) start: usize,
  pub(super) end: usize,
}

impl ProcessorRange {
  #[inline(always)]
  pub fn len(&self) -> usize {
    self.end - self.start
  }

  #[inline(always)]
  pub fn empty(&self) -> bool {
    self.start >= self.end
  }

  #[inline(always)]
  pub fn nonempty(&self) -> bool {
    !self.empty()
  }

  #[inline(always)]
  pub fn first(&self, proc: &Processor) -> Option<u8> {
    if self.empty() {
      None
    } else {
      Some(proc.code[self.start])
    }
  }

  #[inline(always)]
  pub fn require(&self, reason: &'static str) -> ProcessingResult<Self> {
    if self.empty() {
      Err(ErrorType::NotFound(reason))
    } else {
      Ok(*self)
    }
  }

  #[inline(always)]
  pub fn expect(&self) {
    debug_assert!(self.nonempty());
  }
}