compiler: implement casting named structs and pointers to them

2 files changed, 20 insertions, 0 deletions

diff --git a/testdata/structexpand.go b/testdata/structs.go
index 77613b2aa..4ff5068d5 100644
--- a/testdata/structexpand.go
+++ b/testdata/structs.go
@@ -28,6 +28,14 @@ type s4 struct {
 	d byte
 }
 
+// same struct, different type
+type s4b struct {
+	a byte
+	b byte
+	c byte
+	d byte
+}
+
 type s5 struct {
 	a struct {
 		aa byte
@@ -70,6 +78,16 @@ func test3(s s3) {
 
 func test4(s s4) {
 	println("test4", s.a, s.b, s.c, s.d)
+	test4b(s4b(s))
+	test4bp((*s4b)(&s))
+}
+
+func test4b(s s4b) {
+	println("test4b", s.a, s.b, s.c, s.d)
+}
+
+func test4bp(s *s4b) {
+	println("test4bp", s.a, s.b, s.c, s.d)
 }
 
 func test5(s s5) {
diff --git a/testdata/structexpand.txt b/testdata/structs.txt
index 2cfc411a1..b94ce0344 100644
--- a/testdata/structexpand.txt
+++ b/testdata/structs.txt
@@ -3,6 +3,8 @@ test1 1
 test2 1 2
 test3 1 2 3
 test4 1 2 3 4
+test4b 1 2 3 4
+test4bp 1 2 3 4
 test5 1 2 3
 test6 foo 3 5
 test7 (0:nil) 8