gc: ... T corner cases

more to come, but should suffice for Printf work.

R=ken2
CC=golang-dev
https://golang.org/cl/197044

1 files changed, 66 insertions, 0 deletions

diff --git a/test/ddd.go b/test/ddd.go
index 682f22ffe3..08c88f4ff2 100644
--- a/test/ddd.go
+++ b/test/ddd.go
@@ -14,6 +14,18 @@ func sum(args ...int) int {
 	return s
 }
 
+func sumC(args ...int) int {
+	return func() int { return sum(args) } ()
+}
+
+/* TODO(rsc)
+var sumD = func(args ...int) int { return sum(args) }
+
+var sumE = func() func(...int) int { return func(args ...int) int { return sum(args) } } ()
+
+var sumF = func(args ...int) func() int { return func() int { return sum(args) } }
+*/
+
 func sumA(args []int) int {
 	s := 0
 	for _, v := range args {
@@ -40,6 +52,14 @@ func ln(args ...T) int { return len(args) }
 
 func ln2(args ...T) int { return 2 * ln(args) }
 
+func (*T) Sum(args ...int) int {
+	return sum(args)
+}
+
+type U struct {
+	*T
+}
+
 func main() {
 	if x := sum(1, 2, 3); x != 6 {
 		panicln("sum 6", x)
@@ -53,6 +73,20 @@ func main() {
 	if x := sum(1, 8); x != 9 {
 		panicln("sum 9", x)
 	}
+	if x := sumC(4, 5, 6); x != 15 {
+		panicln("sumC 15", x)
+	}
+/* TODO(rsc)
+	if x := sumD(4, 5, 7); x != 16 {
+		panicln("sumD 16", x)
+	}
+	if x := sumE(4, 5, 8); x != 17 {
+		panicln("sumE 17", x)
+	}
+	if x := sumF(4, 5, 9)(); x != 18 {
+		panicln("sumF 18", x)
+	}
+*/
 	if x := sum2(1, 2, 3); x != 2*6 {
 		panicln("sum 6", x)
 	}
@@ -102,4 +136,36 @@ func main() {
 	if x := ln2([]T{}); x != 2*1 {
 		panicln("ln2 1", x)
 	}
+	if x := ((*T)(nil)).Sum(1,3,5,7); x != 16 {
+		panicln("(*T)(nil).Sum", x)
+	}
+	if x := (*T).Sum(nil, 1, 3, 5, 6); x != 15 {
+		panicln("(*T).Sum", x)
+	}
+	if x := (&U{}).Sum(1,3,5,5); x != 14 {
+		panicln("(&U{}).Sum", x)
+	}
+	var u U
+	if x := u.Sum(1,3,5,4); x != 13 {
+		panicln("u.Sum", x)
+	}
+	if x := (&u).Sum(1,3,5,3); x != 12 {
+		panicln("(&u).Sum", x)
+	}
+	var i interface { Sum(...int) int } = &u
+	if x := i.Sum(2,3,5,7); x != 17 {
+		panicln("i(=&u).Sum", x)
+	}
+	i = u
+	if x := i.Sum(2,3,5,6); x != 16 {
+		panicln("i(=u).Sum", x)
+	}
+/* TODO(rsc): Enable once nested method expressions work.
+	if x := (*U).Sum(&U{}, 1, 3, 5, 2); x != 11 {
+		panicln("(*U).Sum", x)
+	}
+	if x := U.Sum(U{}, 1, 3, 5, 1); x != 10 {
+		panicln("U.Sum", x)
+	}
+*/
 }