oak_vampire/parser/
mod.rs1use crate::{kind::VampireSyntaxKind, language::VampireLanguage, lexer::VampireLexer};
2use oak_core::{
3 GreenNode, OakError,
4 parser::{ParseCache, ParseOutput, Parser, ParserState, parse_with_lexer},
5 source::{Source, TextEdit},
6};
7
8pub(crate) type State<'a, S> = ParserState<'a, VampireLanguage, S>;
9
10pub struct VampireParser<'config> {
11 pub(crate) config: &'config VampireLanguage,
12}
13
14impl<'config> VampireParser<'config> {
15 pub fn new(config: &'config VampireLanguage) -> Self {
16 Self { config }
17 }
18
19 pub(crate) fn parse_root_internal<'a, S: Source + ?Sized>(&self, state: &mut State<'a, S>) -> Result<&'a GreenNode<'a, VampireLanguage>, OakError> {
20 let checkpoint = state.checkpoint();
21
22 while state.not_at_end() {
23 state.bump();
24 }
25
26 let root = state.finish_at(checkpoint, VampireSyntaxKind::Root.into());
27 Ok(root)
28 }
29}
30
31impl<'config> Parser<VampireLanguage> for VampireParser<'config> {
32 fn parse<'a, S: Source + ?Sized>(&self, text: &'a S, edits: &[TextEdit], cache: &'a mut impl ParseCache<VampireLanguage>) -> ParseOutput<'a, VampireLanguage> {
33 let lexer = VampireLexer::new(self.config);
34 parse_with_lexer(&lexer, text, edits, cache, |state| self.parse_root_internal(state))
35 }
36}