nordic-dev.net/rust
nordic-dev.net/rust
2
0
Fork 0
mirror of https://github.com/rust-lang/rust.git synced 2024-12-04 20:54:13 +00:00
Code Issues Packages Projects Releases Wiki Activity

Simiplify

Browse Source
This commit is contained in:
Aleksey Kladov 2018-01-07 19:56:33 +03:00
parent f194750a2a
commit bbf7e9bbd2
1 changed files with 9 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
src/parser/event_parser/parser.rs
View File

@ -5,8 +5,7 @@ use syntax_kinds::{L_CURLY, R_CURLY, ERROR};
pub struct Parser<'t> {
text: &'t str,
raw_tokens: &'t [Token],
non_ws_tokens: Vec<(usize, TextUnit)>,
non_ws_tokens: Vec<(Token, TextUnit)>,
pos: usize,
events: Vec<Event>,
@ -19,16 +18,15 @@ impl<'t> Parser<'t> {
pub(crate) fn new(text: &'t str, raw_tokens: &'t [Token]) -> Parser<'t> {
let mut non_ws_tokens = Vec::new();
let mut len = TextUnit::new(0);
for (idx, &token) in raw_tokens.iter().enumerate() {
for &token in raw_tokens.iter() {
if !is_insignificant(token.kind) {
non_ws_tokens.push((idx, len))
non_ws_tokens.push((token, len))
}
len += token.len;
}
Parser {
text,
raw_tokens,
non_ws_tokens,
pos: 0,
@ -48,8 +46,8 @@ impl<'t> Parser<'t> {
return true
}
if let Some(limit) = self.curly_limit {
let idx = self.non_ws_tokens[self.pos].0;
return limit == self.curly_level && self.raw_tokens[idx].kind == R_CURLY;
let token = self.non_ws_tokens[self.pos].0;
return limit == self.curly_level && token.kind == R_CURLY;
}
false
}
@ -70,8 +68,8 @@ impl<'t> Parser<'t> {
if self.is_eof() {
return None;
}
let idx = self.non_ws_tokens[self.pos].0;
Some(self.raw_tokens[idx].kind)
let token = self.non_ws_tokens[self.pos].0;
Some(token.kind)
}
pub(crate) fn bump(&mut self) -> Option<SyntaxKind> {
@ -90,8 +88,8 @@ impl<'t> Parser<'t> {
if self.non_ws_tokens[self.pos..].len() < kinds.len() {
return false
}
kinds.iter().zip(self.non_ws_tokens[self.pos..].iter())
.all(|(&k1, &(idx, _))| k1 == self.raw_tokens[idx].kind)
kinds.iter().zip(self.non_ws_tokens[self.pos..].iter().map(|&(t, _)| t.kind))
.all(|(&k1, k2)| k1 == k2)
}
pub(crate) fn curly_block<F: FnOnce(&mut Parser)>(&mut self, f: F) -> bool {