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authorBjörn-Egil Dahlberg <[email protected]>2014-03-18 12:20:19 +0100
committerBjörn-Egil Dahlberg <[email protected]>2014-03-18 12:20:19 +0100
commita4d314a5298d9725fdd1874763e43b33a39252a0 (patch)
tree3beaa441407a6ec335e7bae501443e67a1c9e24e /lib/compiler/src/cerl_clauses.erl
parent8d66a2823c29cbe44cf80e4de0c58f2ed5c29bd4 (diff)
parent5638ca15d05e9b05d64ade0e03492c13d020439b (diff)
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Merge branch 'egil/maps-literals'
* egil/maps-literals: compiler: Transform M#{} to is_map(M) dialyzer: Do not native compile modules with Maps code hipe: Properly identify map() type form terms stdlib: Test Map key linting stdlib: Accept records as Map keys stdlib: Accept Maps as Map keys stdlib: Move map type to proper definition stdlib: Properly lint map key expressions compiler: Change #c_map{var} to #c_map{arg} compiler: Constant fold Maps that are safe compiler: Validate Map src compiler: Support literal maps in cerl_clauses:match/2 compiler: Guard BIF is_map/1 is pure erts: Handle literals in is_map/1 compiler: Change Maps Core Format compiler: Create literal Maps in creation if possible
Diffstat (limited to 'lib/compiler/src/cerl_clauses.erl')
-rw-r--r--lib/compiler/src/cerl_clauses.erl11
1 files changed, 8 insertions, 3 deletions
diff --git a/lib/compiler/src/cerl_clauses.erl b/lib/compiler/src/cerl_clauses.erl
index 76d70dcabf..87bd47c08b 100644
--- a/lib/compiler/src/cerl_clauses.erl
+++ b/lib/compiler/src/cerl_clauses.erl
@@ -356,14 +356,19 @@ match(P, E, Bs) ->
end;
map ->
%% The most we can do is to say "definitely no match" if a
- %% binary pattern is matched against non-binary data.
+ %% map pattern is matched against non-map data.
case E of
any ->
{false, Bs};
_ ->
case type(E) of
- literal ->
- none;
+ literal ->
+ case is_map(concrete(E)) of
+ false ->
+ none;
+ true ->
+ {false, Bs}
+ end;
cons ->
none;
tuple ->