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Implement an initial version of placement new.

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This commit is contained in:
Niko Matsakis
2012-03-14 15:16:46 -04:00
parent ba39e277e2
commit cfcbec3cc3
22 changed files with 266 additions and 87 deletions
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9
src/rustc/syntax/parse/parser.rs
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@@ -150,7 +150,7 @@ fn bad_expr_word_table() -> hashmap<str, ()> {
"enum", "export", "fail", "fn", "for", "if", "iface",
"impl", "import", "let", "log", "loop", "mod", "mut",
"mutable", "native", "pure", "resource", "ret", "trait",
"type", "unchecked", "unsafe", "while"] {
"type", "unchecked", "unsafe", "while", "new"] {
words.insert(word, ());
}
words
@@ -852,6 +852,13 @@ fn parse_bottom_expr(p: parser) -> pexpr {
let blk = parse_block_tail(p, lo, ast::default_blk);
ret mk_pexpr(p, blk.span.lo, blk.span.hi, ast::expr_block(blk));
}
} else if eat_word(p, "new") {
expect(p, token::LPAREN);
let r = parse_expr(p);
expect(p, token::RPAREN);
let v = parse_expr(p);
ret mk_pexpr(p, lo, p.span.hi,
ast::expr_new(r, p.get_id(), v));
} else if eat_word(p, "if") {
ret pexpr(parse_if_expr(p));
} else if eat_word(p, "for") {