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use {File, SyntaxKind, Token};
use syntax_kinds::*;
#[macro_use]
mod parser;
mod input;
mod event;
mod grammar;
use self::event::Event;
/// Parse a sequence of tokens into the representative node tree
pub fn parse(text: String, tokens: &[Token]) -> File {
let events = {
let input = input::ParserInput::new(&text, tokens);
let mut parser = parser::Parser::new(&input);
grammar::file(&mut parser);
parser.into_events()
};
event::to_file(text, tokens, events)
}
fn is_insignificant(kind: SyntaxKind) -> bool {
match kind {
WHITESPACE | COMMENT => true,
_ => false,
}
}
impl<'p> parser::Parser<'p> {
fn at(&self, kind: SyntaxKind) -> bool {
self.current() == kind
}
fn err_and_bump(&mut self, message: &str) {
let err = self.start();
self.error(message);
self.bump();
err.complete(self, ERROR);
}
fn expect(&mut self, kind: SyntaxKind) -> bool {
if self.at(kind) {
self.bump();
true
} else {
self.error(format!("expected {:?}", kind));
false
}
}
fn eat(&mut self, kind: SyntaxKind) -> bool {
self.at(kind) && {
self.bump();
true
}
}
}
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