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authorBjörn Gustavsson <[email protected]>2015-01-30 12:39:43 +0100
committerBjörn Gustavsson <[email protected]>2015-02-12 13:14:37 +0100
commite1a1d0aa88a195f3730ff0a7f6ff18d1ee927790 (patch)
tree8344e631071514421f54e45af13562ba8eda3b27
parent6f47e34e239f8920802bb969c338fe0584c80eff (diff)
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Eliminate use of core_lib:literal_value/1
Essentially, core_lib:literal_value/1 became useless when literals were introduced in R12. Since we always create #c_literal{} records whenever possible, literal_value/1 would *only* succeed when it was passed a #c_literal{} argument.
-rw-r--r--lib/compiler/src/sys_core_fold.erl48
-rw-r--r--lib/compiler/src/v3_kernel.erl16
2 files changed, 34 insertions, 30 deletions
diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl
index 2b918f243a..9c9b8031fe 100644
--- a/lib/compiler/src/sys_core_fold.erl
+++ b/lib/compiler/src/sys_core_fold.erl
@@ -1117,29 +1117,33 @@ fold_call_1(Call, Mod, Name, Args, Sub) ->
true -> fold_call_2(Call, Mod, Name, Args, Sub)
end.
-fold_call_2(Call, Module, Name, Args0, Sub) ->
- try
- Args = [core_lib:literal_value(A) || A <- Args0],
- try apply(Module, Name, Args) of
- Val ->
- case cerl:is_literal_term(Val) of
- true ->
- #c_literal{val=Val};
- false ->
- %% Successful evaluation, but it was not
- %% possible to express the computed value as a literal.
- Call
- end
- catch
- error:Reason ->
- %% Evaluation of the function failed. Warn and replace
- %% the call with a call to erlang:error/1.
- eval_failure(Call, Reason)
- end
+fold_call_2(Call, Module, Name, Args, Sub) ->
+ case all(fun cerl:is_literal/1, Args) of
+ true ->
+ %% All arguments are literals.
+ fold_lit_args(Call, Module, Name, Args);
+ false ->
+ %% At least one non-literal argument.
+ fold_non_lit_args(Call, Module, Name, Args, Sub)
+ end.
+
+fold_lit_args(Call, Module, Name, Args0) ->
+ Args = [cerl:concrete(A) || A <- Args0],
+ try apply(Module, Name, Args) of
+ Val ->
+ case cerl:is_literal_term(Val) of
+ true ->
+ cerl:abstract(Val);
+ false ->
+ %% Successful evaluation, but it was not possible
+ %% to express the computed value as a literal.
+ Call
+ end
catch
- error:_ ->
- %% There was at least one non-literal argument.
- fold_non_lit_args(Call, Module, Name, Args0, Sub)
+ error:Reason ->
+ %% Evaluation of the function failed. Warn and replace
+ %% the call with a call to erlang:error/1.
+ eval_failure(Call, Reason)
end.
%% fold_non_lit_args(Call, Module, Name, Args, Sub) -> Expr.
diff --git a/lib/compiler/src/v3_kernel.erl b/lib/compiler/src/v3_kernel.erl
index 72e7a39333..08e84efc1b 100644
--- a/lib/compiler/src/v3_kernel.erl
+++ b/lib/compiler/src/v3_kernel.erl
@@ -131,12 +131,12 @@ module(#c_module{anno=A,name=M,exports=Es,attrs=As,defs=Fs}, _Options) ->
{ok,#k_mdef{anno=A,name=M#c_literal.val,exports=Kes,attributes=Kas,
body=Kfs ++ St#kern.funs},lists:sort(St#kern.ws)}.
-attributes([{#c_literal{val=Name},Val}|As]) ->
+attributes([{#c_literal{val=Name},#c_literal{val=Val}}|As]) ->
case include_attribute(Name) of
false ->
attributes(As);
true ->
- [{Name,core_lib:literal_value(Val)}|attributes(As)]
+ [{Name,Val}|attributes(As)]
end;
attributes([]) -> [].
@@ -675,12 +675,12 @@ atomic_bin([#c_bitstr{anno=A,val=E0,size=S0,unit=U0,type=T,flags=Fs0}|Es0],
{E,Ap1,St1} = atomic(E0, Sub, St0),
{S1,Ap2,St2} = atomic(S0, Sub, St1),
validate_bin_element_size(S1),
- U1 = core_lib:literal_value(U0),
- Fs1 = core_lib:literal_value(Fs0),
+ U1 = cerl:concrete(U0),
+ Fs1 = cerl:concrete(Fs0),
{Es,Ap3,St3} = atomic_bin(Es0, Sub, St2),
{#k_bin_seg{anno=A,size=S1,
unit=U1,
- type=core_lib:literal_value(T),
+ type=cerl:concrete(T),
flags=Fs1,
seg=E,next=Es},
Ap1++Ap2++Ap3,St3};
@@ -807,8 +807,8 @@ pattern_bin_1([#c_bitstr{anno=A,val=E0,size=S0,unit=U,type=T,flags=Fs}|Es0],
%% problems.
#k_atom{val=bad_size}
end,
- U0 = core_lib:literal_value(U),
- Fs0 = core_lib:literal_value(Fs),
+ U0 = cerl:concrete(U),
+ Fs0 = cerl:concrete(Fs),
%%ok= io:fwrite("~w: ~p~n", [?LINE,{B0,S,U0,Fs0}]),
{E,Osub1,St2} = pattern(E0, Isub0, Osub0, St1),
Isub1 = case E0 of
@@ -819,7 +819,7 @@ pattern_bin_1([#c_bitstr{anno=A,val=E0,size=S0,unit=U,type=T,flags=Fs}|Es0],
{Es,{Isub,Osub},St3} = pattern_bin_1(Es0, Isub1, Osub1, St2),
{#k_bin_seg{anno=A,size=S,
unit=U0,
- type=core_lib:literal_value(T),
+ type=cerl:concrete(T),
flags=Fs0,
seg=E,next=Es},
{Isub,Osub},St3};