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docing parser methods

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csmoe 2018-12-31 20:53:43 +08:00
parent 582ea0a29a
commit ea7b569e1b
4 changed files with 23 additions and 12 deletions
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15
crates/ra_syntax/src/parser_impl.rs
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@ -22,10 +22,21 @@ use crate::SyntaxKind::{self, EOF, TOMBSTONE};
pub(crate) trait Sink {
type Tree;
/// Adds new leaf to the current branch.
fn leaf(&mut self, kind: SyntaxKind, text: SmolStr);
fn start_internal(&mut self, kind: SyntaxKind);
fn finish_internal(&mut self);
/// Start new branch and make it current.
fn start_branch(&mut self, kind: SyntaxKind);
/// Finish current branch and restore previous
/// branch as current.
fn finish_branch(&mut self);
fn error(&mut self, error: SyntaxError);
/// Complete tree building. Make sure that
/// `start_branch` and `finish_branch` calls
/// are paired!
fn finish(self) -> Self::Tree;
}