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scoping of as introduced aliases #3709

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vicuna opened this issue Jul 3, 2005 · 2 comments
Closed

scoping of as introduced aliases #3709

vicuna opened this issue Jul 3, 2005 · 2 comments
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@vicuna
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vicuna commented Jul 3, 2005

Original bug ID: 3709
Reporter: administrator
Status: closed
Resolution: fixed
Priority: normal
Severity: minor
Category: ~DO NOT USE (was: OCaml general)

Bug description

Full_Name: Ethan Aubin
Version: 3.07+2
OS: Solaris
Submission from: c-24-60-21-144.hsd1.ma.comcast.net (24.60.21.144)

Hi, Could the manual could be more explicit about what constites "the remaining
part of the type" in the Aliased and recursive types section of chapter 6.4. I
was surprised by the following behavior:

class foo =
object
val x: ([X] as 'a) = X
val y: ([Y] as 'a) = Y
end

which fails indicating that the scope of 'a is the whole class and not the field
spec as I had originally guess. Cheers -- ethan.aubin@pobox.com
@vicuna
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vicuna commented Jul 12, 2005

Comment author: administrator

I've added a comment stating that aliases have generally the same scope as named
type variables. Note however that there are exceptions to this rule; the whole
definition should be rethought, rather than explaining in detail the current
unsatisfactory situation...

Jacques

@vicuna
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vicuna commented Jul 12, 2005

Comment author: administrator

Really should do something about the scope of named type variables... JG

@vicuna vicuna closed this as completed Jul 12, 2005
@vicuna vicuna added the bug label Mar 19, 2019
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@vicuna