From: Rob Pike <r@golang.org>
Date: Wed, 16 Jul 2008 03:52:07 +0000 (-0700)
Subject: channel tests with new syntax
X-Git-Tag: weekly.2009-11-06~3484
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=33101926f9196bcf872ab5560543f30660d17e2d;p=gostls13.git

channel tests with new syntax

SVN=127436
---

diff --git a/test/chan/fifo.go b/test/chan/fifo.go
index 114e7d0876..6112b3cd6f 100644
--- a/test/chan/fifo.go
+++ b/test/chan/fifo.go
@@ -13,22 +13,22 @@ const N = 10
 func AsynchFifo() {
 	ch := new(chan int, N);
 	for i := 0; i < N; i++ {
-		>ch = i
+		ch -< i
 	}
 	for i := 0; i < N; i++ {
-		if <ch != i {
+		if <-ch != i {
 			print "bad receive\n";
 			sys.exit(1);
 		}
 	}
 }
 
-func Chain(ch *chan< int, val int, in *chan< int, out *chan> int) {
-	BUG := <in;
-	if <ch != val {
-		panic val;
+func Chain(ch *chan<- int, val int, in *chan<- int, out *chan-< int) {
+	<-in;
+	if <-ch != val {
+		panic val
 	}
-	>out = 1;
+	out -< 1
 }
 
 // thread together a daisy chain to read the elements in sequence
@@ -41,9 +41,9 @@ func SynchFifo() {
 		go Chain(ch, i, in, out);
 		in = out;
 	}
-	>start = 0;
+	start -< 0;
 	for i := 0; i < N; i++ {
-		>ch = i
+		ch -< i
 	}
 }
 
diff --git a/test/chan/sieve.go b/test/chan/sieve.go
index 8644247e76..c1cf690a26 100644
--- a/test/chan/sieve.go
+++ b/test/chan/sieve.go
@@ -10,30 +10,30 @@
 package main
 
 // Send the sequence 2, 3, 4, ... to channel 'ch'.
-func Generate(ch *chan> int) {
-	for i := 2; i<100; i++ {
-		>ch = i	// Send 'i' to channel 'ch'.
+func Generate(ch *chan-< int) {
+	for i := 2; ; i++ {
+		ch -< i  // Send 'i' to channel 'ch'.
 	}
 }
 
 // Copy the values from channel 'in' to channel 'out',
 // removing those divisible by 'prime'.
-func Filter(in *chan< int, out *chan> int, prime int) {
+func Filter(in *chan<- int, out *chan-< int, prime int) {
 	for {
-		i := <in	// Receive value of new variable 'i' from 'in'.
+		i := <-in  // Receive value of new variable 'i' from 'in'.
 		if i % prime != 0 {
-			>out = i	// Send 'i' to channel 'out'.
+			out -< i  // Send 'i' to channel 'out'.
 		}
 	}
 }
 
 // The prime sieve: Daisy-chain Filter processes together.
-func Sieve(primes *chan> int) {
-	ch := new(chan int);	// Create a new channel.
-	go Generate(ch);	// Start Generate() as a subprocess.
+func Sieve() {
+	ch := new(chan int);  // Create a new channel.
+	go Generate(ch);  // Start Generate() as a subprocess.
 	for {
-		prime := <ch;
-		>primes = prime;
+		prime := <-ch;
+		print prime, "\n";
 		ch1 := new(chan int);
 		go Filter(ch, ch1, prime);
 		ch = ch1
@@ -43,30 +43,30 @@ func Sieve(primes *chan> int) {
 func main() {
 	primes := new(chan int);
 	go Sieve(primes);
-	if <primes != 2 { panic 2 }
-	if <primes != 3 { panic 3 }
-	if <primes != 5 { panic 5 }
-	if <primes != 7 { panic 7 }
-	if <primes != 11 { panic 11 }
-	if <primes != 13 { panic 13 }
-	if <primes != 17 { panic 17 }
-	if <primes != 19 { panic 19 }
-	if <primes != 23 { panic 23 }
-	if <primes != 29 { panic 29 }
-	if <primes != 31 { panic 31 }
-	if <primes != 37 { panic 37 }
-	if <primes != 41 { panic 41 }
-	if <primes != 43 { panic 43 }
-	if <primes != 47 { panic 47 }
-	if <primes != 53 { panic 53 }
-	if <primes != 59 { panic 59 }
-	if <primes != 61 { panic 61 }
-	if <primes != 67 { panic 67 }
-	if <primes != 71 { panic 71 }
-	if <primes != 73 { panic 73 }
-	if <primes != 79 { panic 79 }
-	if <primes != 83 { panic 83 }
-	if <primes != 89 { panic 89 }
-	if <primes != 97 { panic 97 }
+	if <-primes != 2 { panic 2 }
+	if <-primes != 3 { panic 3 }
+	if <-primes != 5 { panic 5 }
+	if <-primes != 7 { panic 7 }
+	if <-primes != 11 { panic 11 }
+	if <-primes != 13 { panic 13 }
+	if <-primes != 17 { panic 17 }
+	if <-primes != 19 { panic 19 }
+	if <-primes != 23 { panic 23 }
+	if <-primes != 29 { panic 29 }
+	if <-primes != 31 { panic 31 }
+	if <-primes != 37 { panic 37 }
+	if <-primes != 41 { panic 41 }
+	if <-primes != 43 { panic 43 }
+	if <-primes != 47 { panic 47 }
+	if <-primes != 53 { panic 53 }
+	if <-primes != 59 { panic 59 }
+	if <-primes != 61 { panic 61 }
+	if <-primes != 67 { panic 67 }
+	if <-primes != 71 { panic 71 }
+	if <-primes != 73 { panic 73 }
+	if <-primes != 79 { panic 79 }
+	if <-primes != 83 { panic 83 }
+	if <-primes != 89 { panic 89 }
+	if <-primes != 97 { panic 97 }
 	sys.exit(0);
 }
diff --git a/test/sieve.go b/test/sieve.go
index 365252260c..c55477caf3 100644
--- a/test/sieve.go
+++ b/test/sieve.go
@@ -7,34 +7,34 @@
 package main
 
 // Send the sequence 2, 3, 4, ... to channel 'ch'.
-func Generate(ch *chan> int) {
-  for i := 2; ; i++ {
-    >ch = i  // Send 'i' to channel 'ch'.
-  }
+func Generate(ch *chan-< int) {
+	for i := 2; ; i++ {
+		ch -< i  // Send 'i' to channel 'ch'.
+	}
 }
 
 // Copy the values from channel 'in' to channel 'out',
 // removing those divisible by 'prime'.
-func Filter(in *chan< int, out *chan> int, prime int) {
-  for {
-    i := <in  // Receive value of new variable 'i' from 'in'.
-    if i % prime != 0 {
-      >out = i  // Send 'i' to channel 'out'.
-    }
-  }
+func Filter(in *chan<- int, out *chan-< int, prime int) {
+	for {
+		i := <-in  // Receive value of new variable 'i' from 'in'.
+		if i % prime != 0 {
+			out -< i  // Send 'i' to channel 'out'.
+		}
+	}
 }
 
 // The prime sieve: Daisy-chain Filter processes together.
 func Sieve() {
-  ch := new(chan int);  // Create a new channel.
-  go Generate(ch);  // Start Generate() as a subprocess.
-  for {
-    prime := <ch;
-    print prime, "\n";
-    ch1 := new(chan int);
-    go Filter(ch, ch1, prime);
-    ch = ch1
-  }
+	ch := new(chan int);  // Create a new channel.
+	go Generate(ch);  // Start Generate() as a subprocess.
+	for {
+		prime := <-ch;
+		print prime, "\n";
+		ch1 := new(chan int);
+		go Filter(ch, ch1, prime);
+		ch = ch1
+	}
 }
 
 func main() {