incremental reparse

crates/libsyntax2/src/parser_impl/mod.rs

@@ -2,7 +2,6 @@ mod event;
 mod input;
 
 use {
-    grammar,
     lexer::Token,
     parser_api::Parser,
     parser_impl::{
@@ -27,12 +26,16 @@ pub(crate) trait Sink<'a> {
 }
 
 /// Parse a sequence of tokens into the representative node tree
-pub(crate) fn parse<'a, S: Sink<'a>>(text: &'a str, tokens: &[Token]) -> S::Tree {
+pub(crate) fn parse_with<'a, S: Sink<'a>>(
+    text: &'a str,
+    tokens: &[Token],
+    parser: fn(&mut Parser),
+) -> S::Tree {
     let events = {
         let input = input::ParserInput::new(text, tokens);
         let parser_impl = ParserImpl::new(&input);
         let mut parser_api = Parser(parser_impl);
-        grammar::file(&mut parser_api);
+        parser(&mut parser_api);
         parser_api.0.into_events()
     };
     let mut sink = S::new(text);