1 files changed, 98 insertions, 0 deletions
diff --git a/test/spec/struct.wast b/test/spec/struct.wast
new file mode 100644
index 000000000..994b025d1
--- /dev/null
+++ b/test/spec/struct.wast
@@ -0,0 +1,98 @@
+;; Binding structure
+
+(module
+  (type $s0 (struct (field (ref 0) (ref 1) (ref $s0) (ref $s1))))
+  (type $s1 (struct (field (ref 0) (ref 1) (ref $s0) (ref $s1))))
+
+  (func (param (ref $forward)))
+
+  (type $forward (struct))
+)
+
+(assert_invalid
+  (module (type (struct (field (ref 1)))))
+  "unknown type"
+)
+(assert_invalid
+  (module (type (struct (field (mut (ref 1))))))
+  "unknown type"
+)
+
+
+;; Basic instructions
+
+(module
+  (type $vec (struct (field f32) (field $y (mut f32)) (field $z f32)))
+
+  (func $get_0 (param $v (ref $vec)) (result f32)
+    (struct.get $vec 0 (local.get $v))
+  )
+  (func (export "get_0") (result f32)
+    (call $get_0 (struct.new_default_with_rtt $vec (rtt.canon $vec)))
+  )
+
+  (func $set_get_y (param $v (ref $vec)) (param $y f32) (result f32)
+    (struct.set $vec $y (local.get $v) (local.get $y))
+    (struct.get $vec $y (local.get $v))
+  )
+  (func (export "set_get_y") (param $y f32) (result f32)
+    (call $set_get_y (struct.new_default_with_rtt $vec (rtt.canon $vec)) (local.get $y))
+  )
+
+  (func $set_get_1 (param $v (ref $vec)) (param $y f32) (result f32)
+    (struct.set $vec 1 (local.get $v) (local.get $y))
+    (struct.get $vec $y (local.get $v))
+  )
+  (func (export "set_get_1") (param $y f32) (result f32)
+    (call $set_get_1 (struct.new_default_with_rtt $vec (rtt.canon $vec)) (local.get $y))
+  )
+)
+
+(assert_return (invoke "get_0") (f32.const 0))
+(assert_return (invoke "set_get_y" (f32.const 7)) (f32.const 7))
+(assert_return (invoke "set_get_1" (f32.const 7)) (f32.const 7))
+
+(assert_invalid
+  (module
+    (type $s (struct (field i64)))
+    (func (export "struct.set-immutable") (param $s (ref $s))
+      (struct.set $s 0 (local.get $s) (i64.const 1))
+    )
+  )
+  "field is immutable"
+)
+
+
+;; Null dereference
+
+(module
+  (type $t (struct (field i32) (field (mut i32))))
+  (func (export "struct.get-null")
+    (local (ref null $t)) (drop (struct.get $t 1 (local.get 0)))
+  )
+  (func (export "struct.set-null")
+    (local (ref null $t)) (struct.set $t 1 (local.get 0) (i32.const 0))
+  )
+)
+
+(assert_trap (invoke "struct.get-null") "null structure")
+(assert_trap (invoke "struct.set-null") "null structure")
+
+(assert_invalid
+  (module
+    (type $t (struct (field i32) (field (mut i32))))
+    (func (export "struct.new-null")
+      (local (ref null (rtt $t))) (drop (struct.new $t (i32.const 1) (i32.const 2) (local.get 0)))
+    )
+  )
+  "type mismatch"
+)
+(assert_invalid
+  (module
+    (type $t (struct (field i32) (field (mut i32))))
+    (func (export "struct.new_default-null")
+      (local (ref null (rtt $t))) (drop (struct.new_default_with_rtt $t (local.get 0)))
+    )
+  )
+  "type mismatch"
+)