fluencelabs/lalrpop
1
0
Fork 0
mirror of https://github.com/fluencelabs/lalrpop synced 2025-03-16 17:00:53 +00:00
Code Issues Projects Releases Wiki Activity

distinguish lifetimes of the state table from the underlying grammar

Browse Source
This commit is contained in:
Niko Matsakis 2015-06-20 06:03:15 -04:00
parent a661d9ee94
commit 5c71e53c6b
1 changed files with 6 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/lr1/interpret.rs
View File

@ -11,22 +11,21 @@ pub enum ParseTree {
Terminal(TerminalString),
}
pub fn interpret<'g,TOKENS>(states: &'g [State<'g>], tokens: TOKENS)
-> Result<ParseTree, ()>
pub fn interpret<TOKENS>(states: &[State], tokens: TOKENS) -> Result<ParseTree, ()>
where TOKENS: Iterator<Item=TerminalString>
{
let mut m = Machine::new(states);
m.execute(tokens)
}
struct Machine<'grammar> {
states: &'grammar [State<'grammar>],
state_stack: Vec<&'grammar State<'grammar>>,
struct Machine<'states, 'grammar:'states> {
states: &'states [State<'grammar>],
state_stack: Vec<&'states State<'grammar>>,
data_stack: Vec<ParseTree>,
}
impl<'grammar> Machine<'grammar> {
fn new(states: &'grammar [State<'grammar>]) -> Machine<'grammar> {
impl<'states, 'grammar> Machine<'states, 'grammar> {
fn new(states: &'states [State<'grammar>]) -> Machine<'states,'grammar> {
Machine { states: states,
state_stack: vec![],
data_stack: vec![] }