Change #macro
to macro_rules!
in some cases.
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@ -60,11 +60,8 @@ fn from_value<A>(+val: A) -> future<A> {
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})
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}
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fn macros() {
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#macro[
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[#move[x],
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unsafe { let y <- *ptr::addr_of(x); y }]
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];
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macro_rules! move{
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{$x:expr} => { unsafe { let y <- *ptr::addr_of($x); y } }
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}
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fn from_port<A:send>(-port: future_pipe::client::waiting<A>) -> future<A> {
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@ -81,7 +78,7 @@ fn from_port<A:send>(-port: future_pipe::client::waiting<A>) -> future<A> {
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port_ <-> *port;
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let port = option::unwrap(port_);
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alt recv(port) {
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future_pipe::completed(data) { #move(data) }
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future_pipe::completed(data) { move!{data} }
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}
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}
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}
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@ -101,52 +101,43 @@ enum class_contents { ctor_decl(fn_decl, ~[attribute], blk, codemap::span),
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type arg_or_capture_item = either<arg, capture_item>;
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type item_info = (ident, item_, option<~[attribute]>);
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/* The expr situation is not as complex as I thought it would be.
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The important thing is to make sure that lookahead doesn't balk
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at ACTUALLY tokens */
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macro_rules! maybe_whole_expr{
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{$p:expr} => { alt copy $p.token {
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ACTUALLY(token::w_expr(e)) {
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$p.bump();
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ret pexpr(e);
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}
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ACTUALLY(token::w_path(pt)) {
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$p.bump();
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ret $p.mk_pexpr($p.span.lo, $p.span.lo,
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expr_path(pt));
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}
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_ {}
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}}
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}
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macro_rules! maybe_whole {
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{$p:expr, $constructor:path} => { alt copy $p.token {
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ACTUALLY($constructor(x)) { $p.bump(); ret x; }
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_ {}
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}}
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}
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/* ident is handled by common.rs */
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fn dummy() {
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#macro[[#maybe_whole_item[p],
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alt copy p.token {
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ACTUALLY(token::w_item(i)) { p.bump(); ret i; }
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_ {} }]];
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#macro[[#maybe_whole_block[p],
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alt copy p.token {
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ACTUALLY(token::w_block(b)) { p.bump(); ret b; }
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_ {} }]];
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#macro[[#maybe_whole_stmt[p],
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alt copy p.token {
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ACTUALLY(token::w_stmt(s)) { p.bump(); ret s; }
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_ {} }]];
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#macro[[#maybe_whole_pat[p],
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alt copy p.token {
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ACTUALLY(token::w_pat(pt)) { p.bump(); ret pt; }
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_ {} }]];
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/* The expr situation is not as complex as I thought it would be.
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The important thing is to make sure that lookahead doesn't balk
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at ACTUALLY tokens */
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#macro[[#maybe_whole_expr_pexpr[p], /* ack! */
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alt copy p.token {
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ACTUALLY(token::w_expr(e)) {
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p.bump();
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ret pexpr(e);
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}
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ACTUALLY(token::w_path(pt)) {
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p.bump();
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ret p.mk_pexpr(p.span.lo, p.span.lo,
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expr_path(pt));
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}
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_ {} }]];
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#macro[[#maybe_whole_ty[p],
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alt copy p.token {
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ACTUALLY(token::w_ty(t)) { p.bump(); ret t; }
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_ {} }]];
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/* ident is handled by common.rs */
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/* we will need this to bootstrap maybe_whole! */
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#macro[[#maybe_whole_path[p],
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alt p.token {
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ACTUALLY(token::w_path(pt)) { p.bump(); ret pt; }
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_ {} }]];
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}
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class parser {
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let sess: parse_sess;
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let cfg: crate_cfg;
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@ -734,7 +725,7 @@ class parser {
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}
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fn parse_bottom_expr() -> pexpr {
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#maybe_whole_expr_pexpr[self];
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maybe_whole_expr!{self};
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let lo = self.span.lo;
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let mut hi = self.span.hi;
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@ -9,6 +9,7 @@ fn main() {
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fn add(a: int, b: int) -> int { ret a + b; }
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assert (#apply[add, [1, 15]] == 16);
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assert(#apply[add, [1, 15]] == 16);
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assert(apply!{add, [1, 15]} == 16);
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assert(apply_tt!{add, (1, 15)} == 16);
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}
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