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-rw-r--r--test/fixedbugs/bug281.go55
1 files changed, 55 insertions, 0 deletions
diff --git a/test/fixedbugs/bug281.go b/test/fixedbugs/bug281.go
new file mode 100644
index 0000000..c65530f
--- /dev/null
+++ b/test/fixedbugs/bug281.go
@@ -0,0 +1,55 @@
+// run
+
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// https://golang.org/issue/807
+
+package main
+
+type Point struct {
+ X, Y int64
+}
+
+type Rect struct {
+ Min, Max Point
+}
+
+func (p Point) Sub(q Point) Point {
+ return Point{p.X-q.X, p.Y-q.Y}
+}
+
+type Obj struct {
+ bbox Rect
+}
+
+func (o *Obj) Bbox() Rect {
+ return o.bbox
+}
+
+func (o *Obj) Points() [2]Point{
+ return [2]Point{o.bbox.Min, o.bbox.Max}
+}
+
+var x = 0
+
+func main() {
+ o := &Obj{Rect{Point{800, 0}, Point{}}}
+ p := Point{800, 300}
+ q := p.Sub(o.Bbox().Min)
+ if q.X != 0 || q.Y != 300 {
+ println("BUG dot: ", q.X, q.Y)
+ return
+ }
+
+ q = p.Sub(o.Points()[0])
+ if q.X != 0 || q.Y != 300 {
+ println("BUG index const: ", q.X, q.Y)
+ }
+
+ q = p.Sub(o.Points()[x])
+ if q.X != 0 || q.Y != 300 {
+ println("BUG index var: ", q.X, q.Y)
+ }
+}