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| author | Paul "LeoNerd" Evans <leonerd@leonerd.org.uk> | 2019-10-23 19:00:38 +0100 |
|---|---|---|
| committer | Paul "LeoNerd" Evans <leonerd@leonerd.org.uk> | 2019-12-09 23:19:05 +0000 |
| commit | 813e85a03dc214f719dc8248bda36156897b0757 (patch) | |
| tree | 9e3c12a41469a967477219e0d0a670ab593618d2 /embed.h | |
| 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.h')
| -rw-r--r-- | embed.h | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -600,6 +600,7 @@ #define sv_inc_nomg(a) Perl_sv_inc_nomg(aTHX_ a) #define sv_insert_flags(a,b,c,d,e,f) Perl_sv_insert_flags(aTHX_ a,b,c,d,e,f) #define sv_isa(a,b) Perl_sv_isa(aTHX_ a,b) +#define sv_isa_sv(a,b) Perl_sv_isa_sv(aTHX_ a,b) #define sv_isobject(a) Perl_sv_isobject(aTHX_ a) #ifndef NO_MATHOMS #define sv_iv(a) Perl_sv_iv(aTHX_ a) @@ -1204,6 +1205,7 @@ #define ck_glob(a) Perl_ck_glob(aTHX_ a) #define ck_grep(a) Perl_ck_grep(aTHX_ a) #define ck_index(a) Perl_ck_index(aTHX_ a) +#define ck_isa(a) Perl_ck_isa(aTHX_ a) #define ck_join(a) Perl_ck_join(aTHX_ a) #define ck_length(a) Perl_ck_length(aTHX_ a) #define ck_lfun(a) Perl_ck_lfun(aTHX_ a) |