Remove parser support for recv as an initializer in preparation for changing the recv syntax.

Author: msullivan

src/comp/front/parser.rs

@@ -1442,11 +1442,13 @@ fn parse_initializer(&parser p) -> option::t[ast::initializer] {
             ret some(rec(op = ast::init_assign,
                          expr = parse_expr(p)));
         }
-        case (token::LARROW) {
-            p.bump();
-            ret some(rec(op = ast::init_recv,
-                         expr = parse_expr(p)));
-        }
+        // Now that the the channel is the first argument to receive,
+        // combining it with an initializer doesn't really make sense.
+        // case (token::RECV) {
+        //     p.bump();
+        //     ret some(rec(op = ast::init_recv,
+        //                  expr = parse_expr(p)));
+        // }
         case (_) {
             ret none[ast::initializer];
         }

src/test/run-fail/trivial-message2.rs

@@ -9,7 +9,7 @@ fn main() {
     let port[int] po = port();
     let chan[int] ch = chan(po);
 
-    auto r <- po;
+    auto r; r <- po;
 
     ch <| 42;
 

src/test/run-pass/decl-with-recv.rs

@@ -5,10 +5,10 @@ fn main() {
   let chan[int] ch = chan(po);
 
   ch <| 10;
-  let int i <- po;
+  let int i; i <- po;
   assert (i == 10);
 
   ch <| 11;
-  auto j <- po;
+  auto j; j <- po;
   assert (j == 11);
 }

src/test/run-pass/destructor-ordering.rs

@@ -24,7 +24,8 @@ type order_info = rec(int order, str msg);
 io fn check_order(port[order_info] expected_p) {
   chan(expected_p) <| rec(order=-1, msg="");
   let mutable int actual = 0;
-  auto expected <- expected_p;  // FIXME #121: Workaround for while(true) bug.
+  // FIXME #121: Workaround for while(true) bug.
+  auto expected; expected <- expected_p;
   auto done = -1;  // FIXME: Workaround for typechecking bug.
   while(expected.order != done) {
     if (expected.order != actual) {

src/test/run-pass/many.rs

@@ -9,7 +9,7 @@ fn sub(chan[int] parent, int id) {
   } else {
     let port[int] p = port();
     auto child = spawn sub(chan(p), id-1);
-    let int y <- p;
+    let int y; y <- p;
     parent <| y + 1;
   }
 }

src/test/run-pass/rt-circular-buffer.rs

@@ -44,7 +44,7 @@ fn test_shrink1() {
     auto mychan = chan(myport);
 
     mychan <| 0i8;
-    auto x <- myport;
+    auto x; x <- myport;
 }
 
 fn test_shrink2() {
@@ -58,7 +58,7 @@ fn test_shrink2() {
     }
 
     for each (uint i in uint::range(0u, 100u)) {
-        auto x <- myport;
+        auto x; x <- myport;
     }
 }
 
@@ -73,7 +73,7 @@ fn test_rotate() {
                        val3=i as u32);
         mychan <| val;
 
-        auto x <- myport;
+        auto x; x <- myport;
         assert (x.val1 == i as u32);
         assert (x.val2 == i as u32);
         assert (x.val3 == i as u32);
@@ -95,7 +95,7 @@ fn test_rotate_grow() {
         }
 
         for each (uint i in uint::range(0u, 10u)) {
-            auto x <- myport;
+            auto x; x <- myport;
             assert (x.val1 == i as u32);
             assert (x.val2 == i as u32);
             assert (x.val3 == i as u32);

src/test/run-pass/task-comm-0.rs

@@ -15,7 +15,7 @@ fn test05() {
     let port[int] po = port();
     let chan[int] ch = chan(po);
     spawn test05_start(chan(po));
-    let int value <- po;
+    let int value; value <- po;
     value <- po;
     value <- po;
     assert (value == 30);

src/test/run-pass/task-comm-10.rs

@@ -4,15 +4,15 @@
 fn start(chan[chan[str]] c) {
     let port[str] p = port();
     c <| chan(p);
-    auto a <- p;
-    // auto b <- p; // Never read the second string.
+    auto a; a <- p;
+    // auto b; b <- p; // Never read the second string.
 }
 
 fn main() {
     let port[chan[str]] p = port();
     auto child = spawn "start" start(chan(p));
-    auto c <- p;
+    auto c; c <- p;
     c <| "A";
     c <| "B";
     yield;
-}
+}

src/test/run-pass/task-comm-11.rs

@@ -9,5 +9,5 @@ fn start(chan[chan[str]] c) {
 fn main() {
     let port[chan[str]] p = port();
     auto child = spawn "child" start(chan(p));
-    auto c <- p;
-}
+    auto c; c <- p;
+}

src/test/run-pass/task-comm-15.rs

@@ -17,5 +17,5 @@ fn main() {
     // the child's point of view the receiver may die. We should
     // drop messages on the floor in this case, and not crash!
     auto child = spawn thread "child" start(chan(p), 10);
-    auto c <- p;
-}
+    auto c; c <- p;
+}

src/test/run-pass/task-comm-3.rs

@@ -47,7 +47,7 @@ fn test00(bool is_multithreaded) {
     for (task t in tasks) {
         i = 0;
         while (i < number_of_messages) {
-            let int value <- po;
+            let int value; value <- po;
             sum += value;
             i = i + 1;
         }

src/test/run-pass/task-comm.rs

@@ -48,7 +48,7 @@ fn test00(bool is_multithreaded) {
     for (task t in tasks) {
         i = 0;
         while (i < number_of_messages) {
-            let int value <- po;
+            let int value; value <- po;
             sum += value;
             i = i + 1;
         }
@@ -66,7 +66,7 @@ fn test00(bool is_multithreaded) {
 fn test01() {
     let port[int] p = port();
     log "Reading from a port that is never written to.";
-    let int value <- p;
+    let int value; value <- p;
     log value;
 }
 
@@ -76,7 +76,7 @@ fn test02() {
     log "Writing to a local task channel.";
     c <| 42;
     log "Reading from a local task port.";
-    let int value <- p;
+    let int value; value <- p;
     log value;
 }
 
@@ -126,7 +126,7 @@ fn test05() {
     let port[int] po = port();
     let chan[int] ch = chan(po);
     spawn thread test05_start(ch);
-    let int value <- po;
+    let int value; value <- po;
     value <- po;
     value <- po;
     log value;

src/test/run-pass/trivial-message.rs

@@ -9,7 +9,7 @@ fn main() {
 
     ch <| 42;
 
-    auto r <- po;
+    auto r; r <- po;
 
     log_err r;
 }