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Diffstat (limited to 'doc/self.n')
| -rw-r--r-- | doc/self.n | 33 |
1 files changed, 33 insertions, 0 deletions
@@ -25,6 +25,17 @@ takes an argument, \fIsubcommand\fR, that tells it what sort of information is actually desired; if omitted the result will be the same as if \fBself object\fR was invoked. The supported subcommands are: .TP +\fBself call\fR +. +This returns a two-element list describing the method implementations used to +implement the current call chain. The first element is the same as would be +reported by \fBinfo object call\fR for the current method (except that this +also reports useful values from within constructors and destructors, whose +names are reported as \fB<constructor>\fR and \fB<destructor>\fR +respectively), and the second element is an index into the first element's +list that indicates which actual implementation is currently executing (the +first implementation to execute is always at index 0). +.TP \fBself caller\fR . When the method was invoked from inside another object method, this subcommand @@ -109,6 +120,28 @@ c create b a foo \fI\(-> prints "this is the ::a object"\fR b foo \fI\(-> prints "this is the ::b object"\fR .CE +.PP +This demonstrates what a method call chain looks like, and how traversing +along it changes the index into it: +.PP +.CS +oo::class create c { + method x {} { + puts "Cls: [\fBself call\fR]" + } +} +c create a +oo::objdefine a { + method x {} { + puts "Obj: [\fBself call\fR]" + next + puts "Obj: [\fBself call\fR]" + } +} +a x \fI\(-> Obj: {{method x object method} {method x ::c method}} 0\fR + \fI\(-> Cls: {{method x object method} {method x ::c method}} 1\fR + \fI\(-> Obj: {{method x object method} {method x ::c method}} 0\fR +.CE .SH "SEE ALSO" info(n), next(n) .SH KEYWORDS |