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authorBjörn Gustavsson <[email protected]>2011-12-30 16:54:37 +0100
committerBjörn Gustavsson <[email protected]>2012-01-11 08:39:57 +0100
commitaaa6dd328d6062064295664392e751a6a51ce93e (patch)
tree08a5358f071b6084e3eb9c528a042527167c42cd /lib
parent70630b0d1e8216bb0d59ae3c66b99ae5df7367b5 (diff)
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v3_kernel: Introduce is_in_guard/1
Diffstat (limited to 'lib')
-rw-r--r--lib/compiler/src/v3_kernel.erl15
1 files changed, 11 insertions, 4 deletions
diff --git a/lib/compiler/src/v3_kernel.erl b/lib/compiler/src/v3_kernel.erl
index de568eef25..f6f84c38dc 100644
--- a/lib/compiler/src/v3_kernel.erl
+++ b/lib/compiler/src/v3_kernel.erl
@@ -1412,9 +1412,10 @@ ubody(#ivalues{anno=A,args=As}, return, St) ->
{#k_return{anno=#k{us=Au,ns=[],a=A},args=As},Au,St};
ubody(#ivalues{anno=A,args=As}, {break,_Vbs}, St) ->
Au = lit_list_vars(As),
- if St#kern.guard_refc > 0 ->
+ case is_in_guard(St) of
+ true ->
{#k_guard_break{anno=#k{us=Au,ns=[],a=A},args=As},Au,St};
- true ->
+ false ->
{#k_break{anno=#k{us=Au,ns=[],a=A},args=As},Au,St}
end;
ubody(#ivalues{anno=A,args=As}, {guard_break,_Vbs}, St) ->
@@ -1584,10 +1585,11 @@ uexpr(#k_match{anno=A,vars=Vs0,body=B0}, Br, St0) ->
Vs = handle_reuse_annos(Vs0, St0),
Rs = break_rets(Br),
{B1,Bu,St1} = umatch(B0, Br, St0),
- if St0#kern.guard_refc > 0 ->
+ case is_in_guard(St1) of
+ true ->
{#k_guard_match{anno=#k{us=Bu,ns=lit_list_vars(Rs),a=A},
vars=Vs,body=B1,ret=Rs},Bu,St1};
- true ->
+ false ->
{#k_match{anno=#k{us=Bu,ns=lit_list_vars(Rs),a=A},
vars=Vs,body=B1,ret=Rs},Bu,St1}
end;
@@ -1852,6 +1854,11 @@ integers(N, M) when N =< M ->
[N|integers(N + 1, M)];
integers(_, _) -> [].
+%% is_in_guard(State) -> true|false.
+
+is_in_guard(#kern{guard_refc=Refc}) ->
+ Refc > 0.
+
%%%
%%% Handling of errors and warnings.
%%%