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Add operator 'copy', translates as fall-through.

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This commit is contained in:
Graydon Hoare 2011-08-15 15:35:40 -07:00
parent 9ca8df93b3
commit 814bf41d89
13 changed files with 51 additions and 9 deletions
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5
src/comp/syntax/parse/parser.rs
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@ -180,6 +180,7 @@ fn bad_expr_word_table() -> hashmap[str, ()] {
words.insert("log_err", ());
words.insert("tag", ());
words.insert("obj", ());
words.insert("copy", ());
ret words;
}
@ -999,6 +1000,10 @@ fn parse_bottom_expr(p: &parser) -> @ast::expr {
hi = e.span.hi;
expect(p, token::RPAREN);
ex = ast::expr_chan(e);
} else if (eat_word(p, "copy")) {
let e = parse_expr(p);
ex = ast::expr_copy(e);
hi = e.span.hi;
} else if (eat_word(p, "self")) {
log "parsing a self-call...";
expect(p, token::DOT);