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author | Paul "LeoNerd" Evans <leonerd@leonerd.org.uk> | 2019-10-23 19:00:38 +0100 |
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committer | Paul "LeoNerd" Evans <leonerd@leonerd.org.uk> | 2019-12-09 23:19:05 +0000 |
commit | 813e85a03dc214f719dc8248bda36156897b0757 (patch) | |
tree | 9e3c12a41469a967477219e0d0a670ab593618d2 /embed.fnc | |
parent | e139e9c0aa8151ab29e98bb9f3216ee7a14abe4d (diff) | |
download | perl-813e85a03dc214f719dc8248bda36156897b0757.tar.gz |
Add the `isa` operator
Adds a new infix operator named `isa`, with the semantics that
$x isa SomeClass
is true if and only if `$x` is a blessed object reference that is either
`SomeClass` directly, or includes the class somewhere in its @ISA
hierarchy. It is false without warning or error for non-references or
non-blessed references.
This operator respects `->isa` method overloading, and is intended to
replace boilerplate code such as
use Scalar::Util 'blessed';
blessed($x) and $x->isa("SomeClass")
Diffstat (limited to 'embed.fnc')
-rw-r--r-- | embed.fnc | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -1777,6 +1777,7 @@ ApdR |bool |sv_derived_from_sv|NN SV* sv|NN SV *namesv|U32 flags ApdR |bool |sv_derived_from_pv|NN SV* sv|NN const char *const name|U32 flags ApdR |bool |sv_derived_from_pvn|NN SV* sv|NN const char *const name \ |const STRLEN len|U32 flags +ApdRx |bool |sv_isa_sv |NN SV* sv|NN SV* namesv ApdR |bool |sv_does |NN SV* sv|NN const char *const name ApdR |bool |sv_does_sv |NN SV* sv|NN SV* namesv|U32 flags ApdR |bool |sv_does_pv |NN SV* sv|NN const char *const name|U32 flags |