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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/stdlib
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/stdlib')
-rw-r--r--lib/stdlib/src/erl_internal.erl3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/stdlib/src/erl_internal.erl b/lib/stdlib/src/erl_internal.erl
index 480675554a..edfb097de0 100644
--- a/lib/stdlib/src/erl_internal.erl
+++ b/lib/stdlib/src/erl_internal.erl
@@ -83,6 +83,7 @@ guard_bif(is_function, 1) -> true;
guard_bif(is_function, 2) -> true;
guard_bif(is_integer, 1) -> true;
guard_bif(is_list, 1) -> true;
+guard_bif(is_map, 1) -> true;
guard_bif(is_number, 1) -> true;
guard_bif(is_pid, 1) -> true;
guard_bif(is_port, 1) -> true;
@@ -114,6 +115,7 @@ new_type_test(is_function, 1) -> true;
new_type_test(is_function, 2) -> true;
new_type_test(is_integer, 1) -> true;
new_type_test(is_list, 1) -> true;
+new_type_test(is_map, 1) -> true;
new_type_test(is_number, 1) -> true;
new_type_test(is_pid, 1) -> true;
new_type_test(is_port, 1) -> true;
@@ -316,6 +318,7 @@ bif(is_function, 1) -> true;
bif(is_function, 2) -> true;
bif(is_integer, 1) -> true;
bif(is_list, 1) -> true;
+bif(is_map, 1) -> true;
bif(is_number, 1) -> true;
bif(is_pid, 1) -> true;
bif(is_port, 1) -> true;