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-rw-r--r--lib/stdlib/test/erl_eval_SUITE.erl61
1 files changed, 56 insertions, 5 deletions
diff --git a/lib/stdlib/test/erl_eval_SUITE.erl b/lib/stdlib/test/erl_eval_SUITE.erl
index 18ec17a4bf..e6512b7d71 100644
--- a/lib/stdlib/test/erl_eval_SUITE.erl
+++ b/lib/stdlib/test/erl_eval_SUITE.erl
@@ -1,4 +1,3 @@
-%% -*- coding: utf-8 -*-
%%
%% %CopyrightBegin%
%%
@@ -26,7 +25,7 @@
match_bin/1,
string_plusplus/1,
pattern_expr/1,
- guard_3/1, guard_4/1,
+ guard_3/1, guard_4/1, guard_5/1,
lc/1,
simple_cases/1,
unary_plus/1,
@@ -42,7 +41,9 @@
funs/1,
try_catch/1,
eval_expr_5/1,
- zero_width/1]).
+ zero_width/1,
+ eep37/1,
+ eep43/1]).
%%
%% Define to run outside of test server
@@ -78,10 +79,11 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
[guard_1, guard_2, match_pattern, string_plusplus,
- pattern_expr, match_bin, guard_3, guard_4, lc,
+ pattern_expr, match_bin, guard_3, guard_4, guard_5, lc,
simple_cases, unary_plus, apply_atom, otp_5269,
otp_6539, otp_6543, otp_6787, otp_6977, otp_7550,
- otp_8133, otp_10622, funs, try_catch, eval_expr_5, zero_width].
+ otp_8133, otp_10622, funs, try_catch, eval_expr_5, zero_width,
+ eep37, eep43].
groups() ->
[].
@@ -246,6 +248,20 @@ guard_4(Config) when is_list(Config) ->
false),
ok.
+guard_5(doc) ->
+ ["Guards with erlang:'=='/2"];
+guard_5(suite) ->
+ [];
+guard_5(Config) when is_list(Config) ->
+ {ok,Tokens ,_} =
+ erl_scan:string("case 1 of A when erlang:'=='(A, 1) -> true end."),
+ {ok, [Expr]} = erl_parse:parse_exprs(Tokens),
+ true = guard_5_compiled(),
+ {value, true, [{'A',1}]} = erl_eval:expr(Expr, []),
+ ok.
+
+guard_5_compiled() ->
+ case 1 of A when erlang:'=='(A, 1) -> true end.
lc(doc) ->
["OTP-4518."];
@@ -1402,6 +1418,41 @@ zero_width(Config) when is_list(Config) ->
"ok end.", ok),
ok.
+eep37(Config) when is_list(Config) ->
+ check(fun () -> (fun _(X) -> X end)(42) end,
+ "(fun _(X) -> X end)(42).",
+ 42),
+ check(fun () -> (fun _Id(X) -> X end)(42) end,
+ "(fun _Id(X) -> X end)(42).", 42),
+ check(fun () -> is_function((fun Self() -> Self end)(), 0) end,
+ "is_function((fun Self() -> Self end)(), 0).",
+ true),
+ check(fun () ->
+ F = fun Fact(N) when N > 0 ->
+ N * Fact(N - 1);
+ Fact(0) ->
+ 1
+ end,
+ F(6)
+ end,
+ "(fun Fact(N) when N > 0 -> N * Fact(N - 1); Fact(0) -> 1 end)(6).",
+ 720),
+ ok.
+
+eep43(Config) when is_list(Config) ->
+ check(fun () -> #{} end, " #{}.", #{}),
+ check(fun () -> #{a => b} end, "#{a => b}.", #{a => b}),
+ check(fun () ->
+ Map = #{a => b},
+ {Map#{a := b},Map#{a => c},Map#{d => e}}
+ end,
+ "begin "
+ " Map = #{a => B=b}, "
+ " {Map#{a := B},Map#{a => c},Map#{d => e}} "
+ "end.",
+ {#{a => b},#{a => c},#{a => b,d => e}}),
+ ok.
+
%% Check the string in different contexts: as is; in fun; from compiled code.
check(F, String, Result) ->
check1(F, String, Result),