Re: #1131: Kill ##sys#alias-global-hook with fire

[Chicken Trac]

#1131: Kill ##sys#alias-global-hook with fire
--------------------------------+--------------------
            Reporter:  sjamaan  |      Owner:  (none)
                Type:  defect   |     Status:  new
            Priority:  major    |  Milestone:  5.3
           Component:  unknown  |    Version:  4.9.x
          Resolution:           |   Keywords:
Estimated difficulty:  insane   |
--------------------------------+--------------------

Comment (by sjamaan):

 Note to self: It looks like there is some inconsistency between `set!`
 which doesn't resolve variables using `lookup` and variable dereference
 which does.

 Also, the interpreter seems to have a problem regarding duplicate lookup
 in `##sys#current-environment`.

 Once these are fixed, we can drop the `(assq sym (##sys#current-
 environment))` from `##sys#alias-global-hook`.

 In other words, there is an inconsistent number of times in which
 variables are looked up in `##sys#current-environment` which means
 sometimes it will resolve a certain variable **too often**, resulting in
 mismatches. One reason is that `se` in the compiler generally already
 refers to `##sys#current-environment`, and in the interpreter the current
 environment is also resolved.

-- 
Ticket URL: <https://bugs.call-cc.org/ticket/1131#comment:11>
CHICKEN Scheme <https://www.call-cc.org/>
CHICKEN Scheme is a compiler for the Scheme programming language.