Rdoc detection of aliases
The online doc appears to be making bad detection of aliases.
For example, Array#map and Array#collect are not marked as aliases (on either ruby-doc.org or docs.ruby-lang.org)
On the other hand, when aliases are detected, the generated method interface and the name of the method it is aliases to are always the same for both methods.
For example, the doc for Array#find_index says it is an alias to find_index and has interface showing index (again on both sites), e.g. http://docs.ruby-lang.org/en/2.0.0/Array.html#method-i-find_index
It might also be a good idea to always have doc examples using both forms in case of aliases.
#2 [ruby-core:59064] Updated by Zachary Scott about 2 years ago
- Status changed from Open to Assigned
- Assignee changed from Eric Hodel to Zachary Scott
Alias detection was updated in the pre-release of RDoc 4.1.0, can you try to test it?
If it's these methods are using the same method, we can easily fix this by adding another signature to the call-seq example. What do you think?
#3 [ruby-core:59065] Updated by Eric Hodel about 2 years ago
- Assignee changed from Zachary Scott to Eric Hodel
- Target version set to next minor
As Hanmac noted, they aren't real aliases:
$ grep rb_ary_collect array.c
rb_define_method(rb_cArray, "collect", rb_ary_collect, 0);
rb_define_method(rb_cArray, "collect!", rb_ary_collect_bang, 0);
rb_define_method(rb_cArray, "map", rb_ary_collect, 0);
rb_define_method(rb_cArray, "map!", rb_ary_collect_bang, 0);
But I guess this is for performance reasons (can someone confirm?). I suppose RDoc should treat these as aliases.
#4 [ruby-core:59066] Updated by Marc-Andre Lafortune about 2 years ago
There really shouldn't be a difference between using
rb_define_alias and using the same
Array.instance_method(:map) == Array.instance_method(:collect) returns true (even when not defined using rb_define_alias), and they should be treated as aliases.
Moreover, the problem isn't there, since Array#find_index and index are not defined using rb_define_alias either but the generated doc sees them as aliases.