From 77cbe3b6ced0ca42cf3ec5c8ca0333d9418a0372 Mon Sep 17 00:00:00 2001
From: Hans Bolinder <hasse@erlang.org>
Date: Wed, 17 Apr 2019 13:20:56 +0200
Subject: dialyzer: Add test cases with indentation

A smallish selection of already existing tests, run with
the indentation option.
---
 .../test/indent_SUITE_data/src/simple/rec_api.erl  | 123 +++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 lib/dialyzer/test/indent_SUITE_data/src/simple/rec_api.erl

(limited to 'lib/dialyzer/test/indent_SUITE_data/src/simple/rec_api.erl')

diff --git a/lib/dialyzer/test/indent_SUITE_data/src/simple/rec_api.erl b/lib/dialyzer/test/indent_SUITE_data/src/simple/rec_api.erl
new file mode 100644
index 0000000000..59b9e0fec4
--- /dev/null
+++ b/lib/dialyzer/test/indent_SUITE_data/src/simple/rec_api.erl
@@ -0,0 +1,123 @@
+-module(rec_api).
+
+-export([t1/0, t2/0, t3/0, adt_t1/0, adt_t1/1, adt_r1/0,
+         t/1, t_adt/0, r/0, r_adt/0, u1/0, u2/0, u3/0, v1/0, v2/0, v3/0]).
+
+-export_type([{a,0},{r1,0}, r2/0, r3/0]).
+
+-export_type([f/0, op_t/0, r/0, tup/0]).
+
+-opaque a() :: a | b.
+
+-record(r1,
+        {f1 :: a()}).
+
+-opaque r1() :: #r1{}.
+
+t1() ->
+    A = #r1{f1 = a},
+    {r1, a} = A.
+
+t2() ->
+    A = {r1, 10},
+    {r1, 10} = A,
+    A = #r1{f1 = 10}, % violates the type of field f1
+    #r1{f1 = 10} = A.
+
+t3() ->
+    A = {r1, 10},
+    #r1{f1 = 10} = A. % violates the type of #r1{}
+
+adt_t1() ->
+    R = rec_adt:r1(),
+    {r1, a} = R. % breaks the opacity
+
+-spec adt_t1(rec_adt:r1()) -> rec_adt:r1(). % invalid type spec
+
+adt_t1(R) ->
+    {r1, a} = R.
+
+-spec adt_r1() -> rec_adt:r1(). % invalid type spec
+
+adt_r1() ->
+    #r1{f1 = a}.
+
+-opaque f() :: fun((_) -> _).
+
+-opaque op_t() :: integer().
+
+-spec t(f()) -> _.
+
+t(A) ->
+    T = term(),
+    %% 3(T), % cannot test this: dialyzer_dep deliberately crashes
+    A(T).
+
+-spec term() -> op_t().
+
+term() ->
+    3.
+
+t_adt() ->
+    A = rec_adt:f(),
+    T = term(),
+    A(T).
+
+-record(r, {f = fun(_) -> 3 end :: f(), o = 1 :: op_t()}).
+
+-opaque r() :: #r{}.
+
+-opaque tup() :: {'r', f(), op_t()}.
+
+-spec r() -> _.
+
+r() ->
+    {{r, f(), 2},
+     #r{f = f(), o = 2}}. % OK, f() is a local opaque type
+
+-spec f() -> f().
+
+f() ->
+    fun(_) -> 3 end.
+
+r_adt() ->
+    {{r, rec_adt:f(), 2},
+     #r{f = rec_adt:f(), o = 2}}. % breaks the opacity
+
+-record(r2, % like #r1{}, but with initial value
+        {f1 = a :: a()}).
+
+-opaque r2() :: #r2{}.
+
+u1() ->
+    A = #r2{f1 = a},
+    {r2, a} = A.
+
+u2() ->
+    A = {r2, 10},
+    {r2, 10} = A,
+    A = #r2{f1 = 10}, % violates the type of field f1
+    #r2{f1 = 10} = A.
+
+u3() ->
+    A = {r2, 10},
+    #r2{f1 = 10} = A. % violates the type of #r2{}
+
+-record(r3, % like #r1{}, but an opaque type
+        {f1 = queue:new():: queue:queue()}).
+
+-opaque r3() :: #r3{}.
+
+v1() ->
+    A = #r3{f1 = queue:new()},
+    {r3, a} = A. % breaks the opacity
+
+v2() ->
+    A = {r3, 10},
+    {r3, 10} = A,
+    A = #r3{f1 = 10}, % violates the type of field f1
+    #r3{f1 = 10} = A.
+
+v3() ->
+    A = {r3, 10},
+    #r3{f1 = 10} = A. % breaks the opacity
-- 
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