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authorBjörn-Egil Dahlberg <[email protected]>2013-05-21 18:11:39 +0200
committerBjörn-Egil Dahlberg <[email protected]>2014-01-28 15:56:26 +0100
commit43ed0cc716039c3b2f65a5395f00424169639309 (patch)
tree92d131478d0acb1fd55d48db9327b5a8c46e86d5 /lib/compiler
parent63ef0bbfdfb70673fe7f3ce2fc6fa4f0f801747d (diff)
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erts: Add the type-testing guard BIF is_map/1
To add a type-testing guard BIF, the following steps are needed: * The BIF itself is added to bif.tab (note that it should be declared using "ubif", not "bif"), and its implementation to erl_bif_op.c. * erl_internal must be modified in 3 places: The type test must be recognized as guard BIF, as a type test, and it must be auto-imported. * There must be an instruction that implements the same type test as the BIF (it will be used in guards). beam_utils:bif_to_test/3 must be updated to recognize the new guard BIF.
Diffstat (limited to 'lib/compiler')
-rw-r--r--lib/compiler/src/beam_utils.erl1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/compiler/src/beam_utils.erl b/lib/compiler/src/beam_utils.erl
index 36f3200d11..a3f16cfa8f 100644
--- a/lib/compiler/src/beam_utils.erl
+++ b/lib/compiler/src/beam_utils.erl
@@ -152,6 +152,7 @@ bif_to_test(is_function, [_]=Ops, Fail) -> {test,is_function,Fail,Ops};
bif_to_test(is_function, [_,_]=Ops, Fail) -> {test,is_function2,Fail,Ops};
bif_to_test(is_integer, [_]=Ops, Fail) -> {test,is_integer,Fail,Ops};
bif_to_test(is_list, [_]=Ops, Fail) -> {test,is_list,Fail,Ops};
+bif_to_test(is_map, [_]=Ops, Fail) -> {test,is_map,Fail,Ops};
bif_to_test(is_number, [_]=Ops, Fail) -> {test,is_number,Fail,Ops};
bif_to_test(is_pid, [_]=Ops, Fail) -> {test,is_pid,Fail,Ops};
bif_to_test(is_port, [_]=Ops, Fail) -> {test,is_port,Fail,Ops};