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-rw-r--r--erts/doc/src/erlang.xml13
-rw-r--r--lib/stdlib/doc/src/io.xml14
-rw-r--r--lib/stdlib/src/erl_eval.erl106
-rw-r--r--lib/stdlib/src/eval_bits.erl21
-rw-r--r--lib/stdlib/test/erl_eval_SUITE.erl194
-rw-r--r--system/doc/getting_started/seq_prog.xml13
6 files changed, 272 insertions, 89 deletions
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index d7404fa3ce..1b04690239 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -1444,11 +1444,14 @@ b</pre>
the process to terminate, it has no return value. Example:</p>
<pre>
> <input>catch error(foobar).</input>
-{'EXIT',{foobar,[{erl_eval,do_apply,5},
- {erl_eval,expr,5},
- {shell,exprs,6},
- {shell,eval_exprs,6},
- {shell,eval_loop,3}]}}</pre>
+{'EXIT',{foobar,[{shell,apply_fun,3,
+ [{file,"shell.erl"},{line,906}]},
+ {erl_eval,do_apply,6,[{file,"erl_eval.erl"},{line,677}]},
+ {erl_eval,expr,5,[{file,"erl_eval.erl"},{line,430}]},
+ {shell,exprs,7,[{file,"shell.erl"},{line,687}]},
+ {shell,eval_exprs,7,[{file,"shell.erl"},{line,642}]},
+ {shell,eval_loop,3,[{file,"shell.erl"},{line,627}]}]}}
+</pre>
</desc>
</func>
diff --git a/lib/stdlib/doc/src/io.xml b/lib/stdlib/doc/src/io.xml
index 64fcf4379f..72c774e6ef 100644
--- a/lib/stdlib/doc/src/io.xml
+++ b/lib/stdlib/doc/src/io.xml
@@ -257,8 +257,9 @@ ok</pre>
\x{400}
ok
5> <input>io:fwrite("~s~n",[[1024]]).</input>
-** exception exit: {badarg,[{io,format,[&lt;0.26.0&gt;,"~s~n",[[1024]]]},
- ...</pre>
+** exception error: bad argument
+ in function io:format/3
+ called as io:format(&lt;0.53.0>,"~s~n",[[1024]])</pre>
</item>
<tag><c>w</c></tag>
<item>
@@ -454,12 +455,9 @@ ok</pre>
abc def 'abc def' {foo,1} A
ok
2> <input>io:fwrite("~s", [65]).</input>
-** exception exit: {badarg,[{io,format,[&lt;0.22.0>,"~s","A"]},
- {erl_eval,do_apply,5},
- {shell,exprs,6},
- {shell,eval_exprs,6},
- {shell,eval_loop,3}]}
- in function io:o_request/2</pre>
+** exception error: bad argument
+ in function io:format/3
+ called as io:format(&lt;0.53.0>,"~s","A")</pre>
<p>In this example, an attempt was made to output the single
character 65 with the aid of the string formatting directive
<c>"~s"</c>.</p>
diff --git a/lib/stdlib/src/erl_eval.erl b/lib/stdlib/src/erl_eval.erl
index eafee346eb..489f65290a 100644
--- a/lib/stdlib/src/erl_eval.erl
+++ b/lib/stdlib/src/erl_eval.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2018. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -69,6 +69,9 @@
-type(non_local_function_handler() :: {value, nlfun_handler()}
| none).
+-define(STACKTRACE,
+ element(2, erlang:process_info(self(), current_stacktrace))).
+
%% exprs(ExpressionSeq, Bindings)
%% exprs(ExpressionSeq, Bindings, LocalFuncHandler)
%% exprs(ExpressionSeq, Bindings, LocalFuncHandler, ExternalFuncHandler)
@@ -90,7 +93,7 @@ exprs(Exprs, Bs) ->
ok ->
exprs(Exprs, Bs, none, none, none);
{error,{_Line,_Mod,Error}} ->
- erlang:raise(error, Error, [{?MODULE,exprs,2}])
+ erlang:raise(error, Error, ?STACKTRACE)
end.
-spec(exprs(Expressions, Bindings, LocalFunctionHandler) ->
@@ -141,7 +144,7 @@ expr(E, Bs) ->
ok ->
expr(E, Bs, none, none, none);
{error,{_Line,_Mod,Error}} ->
- erlang:raise(error, Error, [{?MODULE,expr,2}])
+ erlang:raise(error, Error, ?STACKTRACE)
end.
-spec(expr(Expression, Bindings, LocalFunctionHandler) ->
@@ -182,7 +185,7 @@ check_command(Es, Bs) ->
fun_data(F) when is_function(F) ->
case erlang:fun_info(F, module) of
- {module,erl_eval} ->
+ {module,?MODULE} ->
case erlang:fun_info(F, env) of
{env,[{FBs,_FLf,_FEf,FCs}]} ->
{fun_data,FBs,FCs};
@@ -209,8 +212,8 @@ expr({var,_,V}, Bs, _Lf, _Ef, RBs) ->
case binding(V, Bs) of
{value,Val} ->
ret_expr(Val, Bs, RBs);
- unbound -> % Should not happen.
- erlang:raise(error, {unbound,V}, stacktrace())
+ unbound -> % Cannot not happen if checked by erl_lint
+ erlang:raise(error, {unbound,V}, ?STACKTRACE)
end;
expr({char,_,C}, Bs, _Lf, _Ef, RBs) ->
ret_expr(C, Bs, RBs);
@@ -236,13 +239,13 @@ expr({tuple,_,Es}, Bs0, Lf, Ef, RBs) ->
{Vs,Bs} = expr_list(Es, Bs0, Lf, Ef),
ret_expr(list_to_tuple(Vs), Bs, RBs);
expr({record_field,_,_,Name,_}, _Bs, _Lf, _Ef, _RBs) ->
- erlang:raise(error, {undef_record,Name}, stacktrace());
+ erlang:raise(error, {undef_record,Name}, ?STACKTRACE);
expr({record_index,_,Name,_}, _Bs, _Lf, _Ef, _RBs) ->
- erlang:raise(error, {undef_record,Name}, stacktrace());
+ erlang:raise(error, {undef_record,Name}, ?STACKTRACE);
expr({record,_,Name,_}, _Bs, _Lf, _Ef, _RBs) ->
- erlang:raise(error, {undef_record,Name}, stacktrace());
+ erlang:raise(error, {undef_record,Name}, ?STACKTRACE);
expr({record,_,_,Name,_}, _Bs, _Lf, _Ef, _RBs) ->
- erlang:raise(error, {undef_record,Name}, stacktrace());
+ erlang:raise(error, {undef_record,Name}, ?STACKTRACE);
%% map
expr({map,_,Binding,Es}, Bs0, Lf, Ef, RBs) ->
@@ -281,7 +284,7 @@ expr({'fun',_Line,{function,Mod0,Name0,Arity0}}, Bs0, Lf, Ef, RBs) ->
ret_expr(F, Bs, RBs);
expr({'fun',_Line,{function,Name,Arity}}, _Bs0, _Lf, _Ef, _RBs) -> % R8
%% Don't know what to do...
- erlang:raise(error, undef, [{erl_eval,Name,Arity}|stacktrace()]);
+ erlang:raise(error, undef, [{?MODULE,Name,Arity}|?STACKTRACE]);
expr({'fun',Line,{clauses,Cs}} = Ex, Bs, Lf, Ef, RBs) ->
%% Save only used variables in the function environment.
%% {value,L,V} are hidden while lint finds used variables.
@@ -326,7 +329,7 @@ expr({'fun',Line,{clauses,Cs}} = Ex, Bs, Lf, Ef, RBs) ->
eval_fun([A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T], Info) end;
_Other ->
erlang:raise(error, {'argument_limit',{'fun',Line,Cs}},
- stacktrace())
+ ?STACKTRACE)
end,
ret_expr(F, Bs, RBs);
expr({named_fun,Line,Name,Cs} = Ex, Bs, Lf, Ef, RBs) ->
@@ -378,7 +381,7 @@ expr({named_fun,Line,Name,Cs} = Ex, Bs, Lf, Ef, RBs) ->
RF, Info) end;
_Other ->
erlang:raise(error, {'argument_limit',{named_fun,Line,Name,Cs}},
- stacktrace())
+ ?STACKTRACE)
end,
ret_expr(F, Bs, RBs);
expr({call,_,{remote,_,{atom,_,qlc},{atom,_,q}},[{lc,_,_E,_Qs}=LC | As0]},
@@ -422,25 +425,28 @@ expr({call,_,Func0,As0}, Bs0, Lf, Ef, RBs) -> % function or {Mod,Fun}
{As,Bs2} = expr_list(As0, Bs1, Lf, Ef),
case Func of
{M,F} when is_atom(M), is_atom(F) ->
- erlang:raise(error, {badfun,Func}, stacktrace());
+ erlang:raise(error, {badfun,Func}, ?STACKTRACE);
_ ->
do_apply(Func, As, Bs2, Ef, RBs)
end;
expr({'catch',_,Expr}, Bs0, Lf, Ef, RBs) ->
- Ref = make_ref(),
- case catch {Ref,expr(Expr, Bs0, Lf, Ef, none)} of
- {Ref,{value,V,Bs}} -> % Nothing was thrown (guaranteed).
- ret_expr(V, Bs, RBs);
- Other ->
- ret_expr(Other, Bs0, RBs)
+ try expr(Expr, Bs0, Lf, Ef, none) of
+ {value,V,Bs} ->
+ ret_expr(V, Bs, RBs)
+ catch
+ throw:Term ->
+ ret_expr(Term, Bs0, RBs);
+ exit:Reason ->
+ ret_expr({'EXIT',Reason}, Bs0, RBs);
+ error:Reason:Stacktrace ->
+ ret_expr({'EXIT',{Reason,Stacktrace}}, Bs0, RBs)
end;
expr({match,_,Lhs,Rhs0}, Bs0, Lf, Ef, RBs) ->
{value,Rhs,Bs1} = expr(Rhs0, Bs0, Lf, Ef, none),
case match(Lhs, Rhs, Bs1) of
{match,Bs} ->
ret_expr(Rhs, Bs, RBs);
- nomatch ->
- erlang:raise(error, {badmatch,Rhs}, stacktrace())
+ nomatch -> erlang:raise(error, {badmatch,Rhs}, ?STACKTRACE)
end;
expr({op,_,Op,A0}, Bs0, Lf, Ef, RBs) ->
{value,A,Bs} = expr(A0, Bs0, Lf, Ef, none),
@@ -452,7 +458,7 @@ expr({op,_,'andalso',L0,R0}, Bs0, Lf, Ef, RBs) ->
{value,R,_} = expr(R0, Bs1, Lf, Ef, none),
R;
false -> false;
- _ -> erlang:raise(error, {badarg,L}, stacktrace())
+ _ -> erlang:raise(error, {badarg,L}, ?STACKTRACE)
end,
ret_expr(V, Bs1, RBs);
expr({op,_,'orelse',L0,R0}, Bs0, Lf, Ef, RBs) ->
@@ -462,7 +468,7 @@ expr({op,_,'orelse',L0,R0}, Bs0, Lf, Ef, RBs) ->
false ->
{value,R,_} = expr(R0, Bs1, Lf, Ef, none),
R;
- _ -> erlang:raise(error, {badarg,L}, stacktrace())
+ _ -> erlang:raise(error, {badarg,L}, ?STACKTRACE)
end,
ret_expr(V, Bs1, RBs);
expr({op,_,Op,L0,R0}, Bs0, Lf, Ef, RBs) ->
@@ -474,7 +480,7 @@ expr({bin,_,Fs}, Bs0, Lf, Ef, RBs) ->
{value,V,Bs} = eval_bits:expr_grp(Fs, Bs0, EvalFun),
ret_expr(V, Bs, RBs);
expr({remote,_,_,_}, _Bs, _Lf, _Ef, _RBs) ->
- erlang:raise(error, {badexpr,':'}, stacktrace());
+ erlang:raise(error, {badexpr,':'}, ?STACKTRACE);
expr({value,_,Val}, Bs, _Lf, _Ef, RBs) -> % Special case straight values.
ret_expr(Val, Bs, RBs).
@@ -570,7 +576,7 @@ local_func(Func, As, _Bs, {M,F,Eas}, _Ef, RBs) ->
local_func2(apply(M, F, [Func,As|Eas]), RBs);
%% Default unknown function handler to undefined function.
local_func(Func, As0, _Bs0, none, _Ef, _RBs) ->
- erlang:raise(error, undef, [{erl_eval,Func,length(As0)}|stacktrace()]).
+ erlang:raise(error, undef, [{?MODULE,Func,length(As0)}|?STACKTRACE]).
local_func2({value,V,Bs}, RBs) ->
ret_expr(V, Bs, RBs);
@@ -637,7 +643,7 @@ do_apply(Func, As, Bs0, Ef, RBs) ->
{{arity, Arity}, Arity} ->
eval_fun(FCs, As, FBs, FLf, FEf, NRBs);
_ ->
- erlang:raise(error, {badarity,{Func,As}},stacktrace())
+ erlang:raise(error, {badarity,{Func,As}},?STACKTRACE)
end;
{{env,[{FBs,FLf,FEf,FCs,FName}]},_} ->
NRBs = if
@@ -648,7 +654,7 @@ do_apply(Func, As, Bs0, Ef, RBs) ->
{{arity, Arity}, Arity} ->
eval_named_fun(FCs, As, FBs, FLf, FEf, FName, Func, NRBs);
_ ->
- erlang:raise(error, {badarity,{Func,As}},stacktrace())
+ erlang:raise(error, {badarity,{Func,As}},?STACKTRACE)
end;
{no_env,none} when RBs =:= value ->
%% Make tail recursive calls when possible.
@@ -730,7 +736,7 @@ eval_generate([V|Rest], P, Bs0, Lf, Ef, CompFun, Acc) ->
eval_generate([], _P, _Bs0, _Lf, _Ef, _CompFun, Acc) ->
Acc;
eval_generate(Term, _P, _Bs0, _Lf, _Ef, _CompFun, _Acc) ->
- erlang:raise(error, {bad_generator,Term}, stacktrace()).
+ erlang:raise(error, {bad_generator,Term}, ?STACKTRACE).
eval_b_generate(<<_/bitstring>>=Bin, P, Bs0, Lf, Ef, CompFun, Acc) ->
Mfun = match_fun(Bs0),
@@ -746,7 +752,7 @@ eval_b_generate(<<_/bitstring>>=Bin, P, Bs0, Lf, Ef, CompFun, Acc) ->
Acc
end;
eval_b_generate(Term, _P, _Bs0, _Lf, _Ef, _CompFun, _Acc) ->
- erlang:raise(error, {bad_generator,Term}, stacktrace()).
+ erlang:raise(error, {bad_generator,Term}, ?STACKTRACE).
eval_filter(F, Bs0, Lf, Ef, CompFun, Acc) ->
case erl_lint:is_guard_test(F) of
@@ -760,7 +766,7 @@ eval_filter(F, Bs0, Lf, Ef, CompFun, Acc) ->
{value,true,Bs1} -> CompFun(Bs1);
{value,false,_} -> Acc;
{value,V,_} ->
- erlang:raise(error, {bad_filter,V}, stacktrace())
+ erlang:raise(error, {bad_filter,V}, ?STACKTRACE)
end
end.
@@ -816,7 +822,7 @@ eval_fun([{clause,_,H,G,B}|Cs], As, Bs0, Lf, Ef, RBs) ->
end;
eval_fun([], As, _Bs, _Lf, _Ef, _RBs) ->
erlang:raise(error, function_clause,
- [{?MODULE,'-inside-an-interpreted-fun-',As}|stacktrace()]).
+ [{?MODULE,'-inside-an-interpreted-fun-',As}|?STACKTRACE]).
eval_named_fun(As, Fun, {Bs0,Lf,Ef,Cs,Name}) ->
@@ -836,7 +842,7 @@ eval_named_fun([{clause,_,H,G,B}|Cs], As, Bs0, Lf, Ef, Name, Fun, RBs) ->
end;
eval_named_fun([], As, _Bs, _Lf, _Ef, _Name, _Fun, _RBs) ->
erlang:raise(error, function_clause,
- [{?MODULE,'-inside-an-interpreted-fun-',As}|stacktrace()]).
+ [{?MODULE,'-inside-an-interpreted-fun-',As}|?STACKTRACE]).
%% expr_list(ExpressionList, Bindings)
@@ -894,7 +900,7 @@ if_clauses([{clause,_,[],G,B}|Cs], Bs, Lf, Ef, RBs) ->
false -> if_clauses(Cs, Bs, Lf, Ef, RBs)
end;
if_clauses([], _Bs, _Lf, _Ef, _RBs) ->
- erlang:raise(error, if_clause, stacktrace()).
+ erlang:raise(error, if_clause, ?STACKTRACE).
%% try_clauses(Body, CaseClauses, CatchClauses, AfterBody, Bindings,
%% LocalFuncHandler, ExtFuncHandler, RBs)
@@ -909,23 +915,19 @@ try_clauses(B, Cases, Catches, AB, Bs, Lf, Ef, RBs) ->
{B2,Bs2} ->
exprs(B2, Bs2, Lf, Ef, RBs);
nomatch ->
- erlang:raise(error, {try_clause,V}, stacktrace())
+ erlang:raise(error, {try_clause,V}, ?STACKTRACE)
end
catch
- Class:Reason when Catches =:= [] ->
+ Class:Reason:Stacktrace when Catches =:= [] ->
%% Rethrow
- erlang:raise(Class, Reason, stacktrace());
- Class:Reason ->
-%%% %% Set stacktrace
-%%% try erlang:raise(Class, Reason, stacktrace())
-%%% catch _:_ -> ok
-%%% end,
- V = {Class,Reason,erlang:get_stacktrace()},
- case match_clause(Catches, [V],Bs, Lf, Ef) of
+ erlang:raise(Class, Reason, Stacktrace);
+ Class:Reason:Stacktrace ->
+ V = {Class,Reason,Stacktrace},
+ case match_clause(Catches, [V], Bs, Lf, Ef) of
{B2,Bs2} ->
exprs(B2, Bs2, Lf, Ef, RBs);
nomatch ->
- erlang:raise(Class, Reason, stacktrace())
+ erlang:raise(Class, Reason, Stacktrace)
end
after
if AB =:= [] ->
@@ -943,7 +945,7 @@ case_clauses(Val, Cs, Bs, Lf, Ef, RBs) ->
{B, Bs1} ->
exprs(B, Bs1, Lf, Ef, RBs);
nomatch ->
- erlang:raise(error, {case_clause,Val}, stacktrace())
+ erlang:raise(error, {case_clause,Val}, ?STACKTRACE)
end.
%%
@@ -1018,7 +1020,7 @@ guard0([G|Gs], Bs0, Lf, Ef) ->
{value,false,_} -> false
end;
false ->
- erlang:raise(error, guard_expr, stacktrace())
+ erlang:raise(error, guard_expr, ?STACKTRACE)
end;
guard0([], _Bs, _Lf, _Ef) -> true.
@@ -1073,7 +1075,7 @@ match(Pat, Term, Bs) ->
match(Pat, Term, Bs, BBs) ->
case catch match1(Pat, Term, Bs, BBs) of
invalid ->
- erlang:raise(error, {illegal_pattern,Pat}, stacktrace());
+ erlang:raise(error, {illegal_pattern,Pat}, ?STACKTRACE);
Other ->
Other
end.
@@ -1254,7 +1256,7 @@ merge_bindings(Bs1, Bs2) ->
case orddict:find(Name, Bs) of
{ok,Val} -> Bs; %Already with SAME value
{ok,V1} ->
- erlang:raise(error, {badmatch,V1}, stacktrace());
+ erlang:raise(error, {badmatch,V1}, ?STACKTRACE);
error -> orddict:store(Name, Val, Bs)
end end,
Bs2, orddict:to_list(Bs1)).
@@ -1264,7 +1266,7 @@ merge_bindings(Bs1, Bs2) ->
%% fun (Name, Val, Bs) ->
%% case orddict:find(Name, Bs) of
%% {ok,Val} -> orddict:erase(Name, Bs);
-%% {ok,V1} -> erlang:raise(error,{badmatch,V1},stacktrace());
+%% {ok,V1} -> erlang:raise(error,{badmatch,V1},?STACKTRACE);
%% error -> Bs
%% end
%% end, Bs2, Bs1).
@@ -1326,7 +1328,3 @@ ret_expr(_Old, New) ->
New.
line(Expr) -> element(2, Expr).
-
-%% {?MODULE,expr,3} is still the stacktrace, despite the
-%% fact that expr() now takes two, three or four arguments...
-stacktrace() -> [{?MODULE,expr,3}].
diff --git a/lib/stdlib/src/eval_bits.erl b/lib/stdlib/src/eval_bits.erl
index 631faa3be5..bb86a65c72 100644
--- a/lib/stdlib/src/eval_bits.erl
+++ b/lib/stdlib/src/eval_bits.erl
@@ -2,7 +2,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2018. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -25,6 +25,9 @@
-export([expr_grp/3,expr_grp/5,match_bits/6,
match_bits/7,bin_gen/6]).
+-define(STACKTRACE,
+ element(2, erlang:process_info(self(), current_stacktrace))).
+
%% Types used in this module:
%% @type bindings(). An abstract structure for bindings between
%% variables and values (the environment)
@@ -93,9 +96,9 @@ eval_exp_field1(V, Size, Unit, Type, Endian, Sign) ->
eval_exp_field(V, Size, Unit, Type, Endian, Sign)
catch
error:system_limit ->
- error(system_limit);
+ erlang:raise(error, system_limit, ?STACKTRACE);
error:_ ->
- error(badarg)
+ erlang:raise(error, badarg, ?STACKTRACE)
end.
eval_exp_field(Val, Size, Unit, integer, little, signed) ->
@@ -131,7 +134,7 @@ eval_exp_field(Val, all, Unit, binary, _, _) ->
Size when Size rem Unit =:= 0 ->
<<Val:Size/binary-unit:1>>;
_ ->
- error(badarg)
+ erlang:raise(error, badarg, ?STACKTRACE)
end;
eval_exp_field(Val, Size, Unit, binary, _, _) ->
<<Val:(Size*Unit)/binary-unit:1>>.
@@ -377,12 +380,12 @@ make_bit_type(Line, default, Type0) ->
{ok,all,Bt} -> {{atom,Line,all},erl_bits:as_list(Bt)};
{ok,undefined,Bt} -> {{atom,Line,undefined},erl_bits:as_list(Bt)};
{ok,Size,Bt} -> {{integer,Line,Size},erl_bits:as_list(Bt)};
- {error,Reason} -> error(Reason)
+ {error,Reason} -> erlang:raise(error, Reason, ?STACKTRACE)
end;
make_bit_type(_Line, Size, Type0) -> %Size evaluates to an integer or 'all'
case erl_bits:set_bit_type(Size, Type0) of
{ok,Size,Bt} -> {Size,erl_bits:as_list(Bt)};
- {error,Reason} -> error(Reason)
+ {error,Reason} -> erlang:raise(error, Reason, ?STACKTRACE)
end.
match_check_size(Mfun, Size, Bs) ->
@@ -405,9 +408,3 @@ match_check_size(_, {value,_,_}, _Bs, _AllowAll) ->
ok; %From the debugger.
match_check_size(_, _, _Bs, _AllowAll) ->
throw(invalid).
-
-%% error(Reason) -> exception thrown
-%% Throw a nice-looking exception, similar to exceptions from erl_eval.
-error(Reason) ->
- erlang:raise(error, Reason, [{erl_eval,expr,3}]).
-
diff --git a/lib/stdlib/test/erl_eval_SUITE.erl b/lib/stdlib/test/erl_eval_SUITE.erl
index c3ef4eb051..3c95b5781e 100644
--- a/lib/stdlib/test/erl_eval_SUITE.erl
+++ b/lib/stdlib/test/erl_eval_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1998-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2017. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -41,6 +41,7 @@
otp_8133/1,
otp_10622/1,
otp_13228/1,
+ otp_14826/1,
funs/1,
try_catch/1,
eval_expr_5/1,
@@ -57,6 +58,7 @@
-export([count_down/2, count_down_fun/0, do_apply/2,
local_func/3, local_func_value/2]).
+-export([simple/0]).
-ifdef(STANDALONE).
-define(config(A,B),config(A,B)).
@@ -83,7 +85,7 @@ all() ->
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, otp_13228,
+ otp_8133, otp_10622, otp_13228, otp_14826,
funs, try_catch, eval_expr_5, zero_width,
eep37, eep43].
@@ -988,6 +990,153 @@ otp_13228(_Config) ->
EFH = {value, fun({io, fwrite}, [atom]) -> io_fwrite end},
{value, worked, []} = parse_and_run("foo(io:fwrite(atom)).", LFH, EFH).
+%% OTP-14826: more accurate stacktrace.
+otp_14826(_Config) ->
+ backtrace_check("fun(P) when is_pid(P) -> true end(a).",
+ function_clause,
+ [{erl_eval,'-inside-an-interpreted-fun-',[a],[]},
+ {erl_eval,eval_fun,6},
+ ?MODULE]),
+ backtrace_check("B.",
+ {unbound_var, 'B'},
+ [{erl_eval,expr,2}, ?MODULE]),
+ backtrace_check("B.",
+ {unbound, 'B'},
+ [{erl_eval,expr,5}, ?MODULE],
+ none, none),
+ backtrace_check("1/0.",
+ badarith,
+ [{erlang,'/',[1,0],[]},
+ {erl_eval,do_apply,6}]),
+ backtrace_catch("catch 1/0.",
+ badarith,
+ [{erlang,'/',[1,0],[]},
+ {erl_eval,do_apply,6}]),
+ check(fun() -> catch exit(foo) end,
+ "catch exit(foo).",
+ {'EXIT', foo}),
+ check(fun() -> catch throw(foo) end,
+ "catch throw(foo).",
+ foo),
+ backtrace_check("try 1/0 after foo end.",
+ badarith,
+ [{erlang,'/',[1,0],[]},
+ {erl_eval,do_apply,6}]),
+ backtrace_catch("catch (try 1/0 after foo end).",
+ badarith,
+ [{erlang,'/',[1,0],[]},
+ {erl_eval,do_apply,6}]),
+ backtrace_catch("try catch 1/0 after foo end.",
+ badarith,
+ [{erlang,'/',[1,0],[]},
+ {erl_eval,do_apply,6}]),
+ backtrace_check("try a of b -> bar after foo end.",
+ {try_clause,a},
+ [{erl_eval,try_clauses,8}]),
+ backtrace_catch("catch (try a of b -> bar after foo end).",
+ {try_clause,a},
+ [{erl_eval,try_clauses,8}]),
+ backtrace_check("try 1/0 catch exit:a -> foo end.",
+ badarith,
+ [{erlang,'/',[1,0],[]},
+ {erl_eval,do_apply,6}]),
+ backtrace_check("{1,1} = {A = 1, A = 2}.",
+ {badmatch, 1},
+ [erl_eval, {lists,foldl,3}]),
+ backtrace_check("case a of a when foo:bar() -> x end.",
+ guard_expr,
+ [{erl_eval,guard0,4}], none, none),
+ backtrace_check("case a of foo() -> ok end.",
+ {illegal_pattern,{call,1,{atom,1,foo},[]}},
+ [{erl_eval,match,4}], none, none),
+ backtrace_check("case a of b -> ok end.",
+ {case_clause,a},
+ [{erl_eval,case_clauses,6}, ?MODULE]),
+ backtrace_check("if a =:= b -> ok end.",
+ if_clause,
+ [{erl_eval,if_clauses,5}, ?MODULE]),
+ backtrace_check("fun A(b) -> ok end(a).",
+ function_clause,
+ [{erl_eval,'-inside-an-interpreted-fun-',[a],[]},
+ {erl_eval,eval_named_fun,8},
+ ?MODULE]),
+ backtrace_check("[A || A <- a].",
+ {bad_generator, a},
+ [{erl_eval,eval_generate,7}, {erl_eval, eval_lc, 6}]),
+ backtrace_check("<< <<A>> || <<A>> <= a>>.",
+ {bad_generator, a},
+ [{erl_eval,eval_b_generate,7}, {erl_eval, eval_bc, 6}]),
+ backtrace_check("[A || A <- [1], begin a end].",
+ {bad_filter, a},
+ [{erl_eval,eval_filter,6}, {erl_eval, eval_generate, 7}]),
+ fun() ->
+ {'EXIT', {{badarity, {_Fun, []}}, BT}} =
+ (catch parse_and_run("fun(A) -> A end().")),
+ check_backtrace([{erl_eval,do_apply,5}, ?MODULE], BT)
+ end(),
+ fun() ->
+ {'EXIT', {{badarity, {_Fun, []}}, BT}} =
+ (catch parse_and_run("fun F(A) -> A end().")),
+ check_backtrace([{erl_eval,do_apply,5}, ?MODULE], BT)
+ end(),
+ backtrace_check("foo().",
+ undef,
+ [{erl_eval,foo,0},{erl_eval,local_func,6}],
+ none, none),
+ backtrace_check("a orelse false.",
+ {badarg, a},
+ [{erl_eval,expr,5}, ?MODULE]),
+ backtrace_check("a andalso false.",
+ {badarg, a},
+ [{erl_eval,expr,5}, ?MODULE]),
+ backtrace_check("t = u.",
+ {badmatch, u},
+ [{erl_eval,expr,5}, ?MODULE]),
+ backtrace_check("{math,sqrt}(2).",
+ {badfun, {math,sqrt}},
+ [{erl_eval,expr,5}, ?MODULE]),
+ backtrace_check("erl_eval_SUITE:simple().",
+ simple,
+ [{?MODULE,simple1,0},{?MODULE,simple,0},erl_eval]),
+ Args = [{integer,1,I} || I <- lists:seq(1, 30)],
+ backtrace_check("fun(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,"
+ "19,20,21,22,23,24,25,26,27,28,29,30) -> a end.",
+ {argument_limit,
+ {'fun',1,[{clause,1,Args,[],[{atom,1,a}]}]}},
+ [{erl_eval,expr,5}, ?MODULE]),
+ backtrace_check("fun F(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,"
+ "19,20,21,22,23,24,25,26,27,28,29,30) -> a end.",
+ {argument_limit,
+ {named_fun,1,'F',[{clause,1,Args,[],[{atom,1,a}]}]}},
+ [{erl_eval,expr,5}, ?MODULE]),
+ backtrace_check("#r{}.",
+ {undef_record,r},
+ [{erl_eval,expr,5}, ?MODULE],
+ none, none),
+ %% eval_bits
+ backtrace_check("<<100:8/bitstring>>.",
+ badarg,
+ [{eval_bits,eval_exp_field1,6},
+ eval_bits,eval_bits,erl_eval]),
+ backtrace_check("<<100:8/foo>>.",
+ {undefined_bittype,foo},
+ [{eval_bits,make_bit_type,3},eval_bits,
+ eval_bits,erl_eval],
+ none, none),
+ backtrace_check("B = <<\"foo\">>, <<B/binary-unit:7>>.",
+ badarg,
+ [{eval_bits,eval_exp_field1,6},
+ eval_bits,eval_bits,erl_eval],
+ none, none),
+ ok.
+
+simple() ->
+ A = simple1(),
+ {A}.
+
+simple1() ->
+ erlang:error(simple).
+
%% Simple cases, just to cover some code.
funs(Config) when is_list(Config) ->
do_funs(none, none),
@@ -1488,6 +1637,43 @@ error_check(String, Result, LFH, EFH) ->
ct:fail({eval, Other, Result})
end.
+backtrace_check(String, Result, Backtrace) ->
+ case catch parse_and_run(String) of
+ {'EXIT', {Result, BT}} ->
+ check_backtrace(Backtrace, BT);
+ Other ->
+ ct:fail({eval, Other, Result})
+ end.
+
+backtrace_check(String, Result, Backtrace, LFH, EFH) ->
+ case catch parse_and_run(String, LFH, EFH) of
+ {'EXIT', {Result, BT}} ->
+ check_backtrace(Backtrace, BT);
+ Other ->
+ ct:fail({eval, Other, Result})
+ end.
+
+backtrace_catch(String, Result, Backtrace) ->
+ case parse_and_run(String) of
+ {value, {'EXIT', {Result, BT}}, _Bindings} ->
+ check_backtrace(Backtrace, BT);
+ Other ->
+ ct:fail({eval, Other, Result})
+ end.
+
+check_backtrace([B1|Backtrace], [B2|BT]) ->
+ case {B1, B2} of
+ {M, {M,_,_,_}} ->
+ ok;
+ {{M,F,A}, {M,F,A,_}} ->
+ ok;
+ {B, B} ->
+ ok
+ end,
+ check_backtrace(Backtrace, BT);
+check_backtrace([], _) ->
+ ok.
+
eval_string(String) ->
{value, Result, _} = parse_and_run(String),
Result.
@@ -1499,8 +1685,8 @@ parse_and_run(String) ->
parse_and_run(String, LFH, EFH) ->
{ok,Tokens,_} = erl_scan:string(String),
- {ok, [Expr]} = erl_parse:parse_exprs(Tokens),
- erl_eval:expr(Expr, [], LFH, EFH).
+ {ok, Exprs} = erl_parse:parse_exprs(Tokens),
+ erl_eval:exprs(Exprs, [], LFH, EFH).
no_final_dot(S) ->
case lists:reverse(S) of
diff --git a/system/doc/getting_started/seq_prog.xml b/system/doc/getting_started/seq_prog.xml
index 6b7e1cd24f..2b0750ff80 100644
--- a/system/doc/getting_started/seq_prog.xml
+++ b/system/doc/getting_started/seq_prog.xml
@@ -4,7 +4,7 @@
<chapter>
<header>
<copyright>
- <year>2003</year><year>2016</year>
+ <year>2003</year><year>2017</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
@@ -271,11 +271,12 @@ convert(N, centimeter) ->
{'EXIT',{function_clause,[{tut2,convert,
[3,miles],
[{file,"tut2.erl"},{line,4}]},
- {erl_eval,do_apply,5,[{file,"erl_eval.erl"},{line,482}]},
- {shell,exprs,7,[{file,"shell.erl"},{line,666}]},
- {shell,eval_exprs,7,[{file,"shell.erl"},{line,621}]},
- {shell,eval_loop,3,[{file,"shell.erl"},{line,606}]}]}}</pre>
-
+ {erl_eval,do_apply,6,
+ [{file,"erl_eval.erl"},{line,677}]},
+ {shell,exprs,7,[{file,"shell.erl"},{line,687}]},
+ {shell,eval_exprs,7,[{file,"shell.erl"},{line,642}]},
+ {shell,eval_loop,3,
+ [{file,"shell.erl"},{line,627}]}]}}</pre>
</section>
<section>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 21:38:13 +0000