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Macro By Example transcription of token trees with interpolations and dotdotdots.

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This commit is contained in:
Paul Stansifer
2012-06-29 18:26:34 -07:00
parent f4fb975e4e
commit 0c6fe6470e
4 changed files with 141 additions and 32 deletions
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10
src/libsyntax/parse/parser.rs
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@@ -1070,9 +1070,10 @@ class parser {
fn parse_tt_flat(p: parser, delim_ok: bool) -> token_tree {
if p.eat_keyword("many") && p.quote_depth > 0u {
ret tt_dotdotdot(
p.parse_seq(token::LPAREN, token::RPAREN, seq_sep_none(),
|p| p.parse_token_tree()).node);
let seq = p.parse_seq(token::LPAREN, token::RPAREN,
seq_sep_none(),
|p| p.parse_token_tree());
ret tt_dotdotdot(seq.span, seq.node);
}
alt p.token {
token::RPAREN | token::RBRACE | token::RBRACKET
@@ -1086,7 +1087,8 @@ class parser {
/* we ought to allow different depths of unquotation */
token::DOLLAR if p.quote_depth > 0u {
p.bump();
ret tt_interpolate(p.parse_ident());
let sp = p.span;
ret tt_interpolate(sp, p.parse_ident());
}
_ { /* ok */ }
}