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compound ops

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This commit is contained in:
Aleksey Kladov 2018-08-05 16:09:25 +03:00
parent 5691da4c84
commit 1e1e2e83c4
8 changed files with 171 additions and 16 deletions
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19
src/parser_impl/mod.rs
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@ -65,6 +65,11 @@ impl<'t> ParserImpl<'t> {
self.events
}
pub(super) fn at_compound2(&self, c1: SyntaxKind, c2: SyntaxKind) -> bool {
self.inp.kind(self.pos) == c1 && self.inp.kind(self.pos + 1) == c2
&& self.inp.start(self.pos + 1) == self.inp.start(self.pos) + self.inp.len(self.pos)
}
pub(super) fn nth(&self, n: u32) -> SyntaxKind {
self.inp.kind(self.pos + n)
}
@ -87,7 +92,7 @@ impl<'t> ParserImpl<'t> {
if kind == EOF {
return;
}
self.do_bump(kind);
self.do_bump(kind, 1);
}
pub(super) fn bump_remap(&mut self, kind: SyntaxKind) {
@ -95,14 +100,18 @@ impl<'t> ParserImpl<'t> {
// TODO: panic!?
return;
}
self.do_bump(kind);
self.do_bump(kind, 1);
}
fn do_bump(&mut self, kind: SyntaxKind) {
self.pos += 1;
pub(super) fn bump_compound(&mut self, kind: SyntaxKind, n: u8) {
self.do_bump(kind, n);
}
fn do_bump(&mut self, kind: SyntaxKind, n_raw_tokens: u8) {
self.pos += u32::from(n_raw_tokens);
self.event(Event::Token {
kind,
n_raw_tokens: 1,
n_raw_tokens,
});
}