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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:16:40 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:16:40 +0000
commit47ab3d4a42e9ab51c465c4322d2ec233f6324e6b (patch)
treea61a0ffd83f4a3def4b36e5c8e99630c559aa723 /test/interface/bigdata.go
parentInitial commit. (diff)
downloadgolang-1.18-upstream.tar.xz
golang-1.18-upstream.zip
Adding upstream version 1.18.10.upstream/1.18.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--test/interface/bigdata.go74
1 files changed, 74 insertions, 0 deletions
diff --git a/test/interface/bigdata.go b/test/interface/bigdata.go
new file mode 100644
index 0000000..0f2e9a9
--- /dev/null
+++ b/test/interface/bigdata.go
@@ -0,0 +1,74 @@
+// run
+
+// Copyright 2009 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.
+
+// Test big vs. small, pointer vs. value interface methods.
+
+package main
+
+type I interface { M() int64 }
+
+type BigPtr struct { a, b, c, d int64 }
+func (z *BigPtr) M() int64 { return z.a+z.b+z.c+z.d }
+
+type SmallPtr struct { a int32 }
+func (z *SmallPtr) M() int64 { return int64(z.a) }
+
+type IntPtr int32
+func (z *IntPtr) M() int64 { return int64(*z) }
+
+var bad bool
+
+func test(name string, i I) {
+ m := i.M()
+ if m != 12345 {
+ println(name, m)
+ bad = true
+ }
+}
+
+func ptrs() {
+ var bigptr BigPtr = BigPtr{ 10000, 2000, 300, 45 }
+ var smallptr SmallPtr = SmallPtr{ 12345 }
+ var intptr IntPtr = 12345
+
+// test("bigptr", bigptr)
+ test("&bigptr", &bigptr)
+// test("smallptr", smallptr)
+ test("&smallptr", &smallptr)
+// test("intptr", intptr)
+ test("&intptr", &intptr)
+}
+
+type Big struct { a, b, c, d int64 }
+func (z Big) M() int64 { return z.a+z.b+z.c+z.d }
+
+type Small struct { a int32 }
+func (z Small) M() int64 { return int64(z.a) }
+
+type Int int32
+func (z Int) M() int64 { return int64(z) }
+
+func nonptrs() {
+ var big Big = Big{ 10000, 2000, 300, 45 }
+ var small Small = Small{ 12345 }
+ var int Int = 12345
+
+ test("big", big)
+ test("&big", &big)
+ test("small", small)
+ test("&small", &small)
+ test("int", int)
+ test("&int", &int)
+}
+
+func main() {
+ ptrs()
+ nonptrs()
+
+ if bad {
+ println("BUG: interface4")
+ }
+}