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rustc: add new token-tree based quasiquoter.

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This commit is contained in:
Graydon Hoare 2012-11-08 17:00:55 -08:00
parent 12b212f38c
commit c6d0117bf6
5 changed files with 368 additions and 19 deletions
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5
src/libsyntax/parse/parser.rs
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@ -1084,7 +1084,7 @@ impl Parser {
self.bump();
let tts = match self.token {
token::LPAREN | token::LBRACE => {
let ket = token::flip_delimiter(self.token);
let ket = token::flip_delimiter(copy self.token);
self.parse_unspanned_seq(copy self.token, ket,
seq_sep_none(),
|p| p.parse_token_tree())
@ -1279,6 +1279,7 @@ impl Parser {
maybe_whole!(deref self, nt_tt);
fn parse_tt_tok(p: Parser, delim_ok: bool) -> token_tree {
maybe_whole!(deref p, nt_tt);
match p.token {
token::RPAREN | token::RBRACE | token::RBRACKET
if !delim_ok => {
@ -3419,7 +3420,7 @@ impl Parser {
let id = self.parse_ident();
let tts = match self.token {
token::LPAREN | token::LBRACE => {
let ket = token::flip_delimiter(self.token);
let ket = token::flip_delimiter(copy self.token);
self.parse_unspanned_seq(copy self.token, ket,
seq_sep_none(),
|p| p.parse_token_tree())