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More for bug 1592 #8062

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vicuna opened this issue Mar 14, 2003 · 1 comment
Closed

More for bug 1592 #8062

vicuna opened this issue Mar 14, 2003 · 1 comment
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@vicuna
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vicuna commented Mar 14, 2003

Original bug ID: 1593
Reporter: administrator
Status: closed
Resolution: not a bug
Priority: normal
Severity: minor
Category: ~DO NOT USE (was: OCaml general)

Bug description

The subject line I gave for the bug is misleading, since the following
code gets essentially the same error and has no typedef and no type
"any":

module type Unintern_strategy = sig
val unintern_eventdesc: ([>`ANY] as 'a) -> 'a list
end

module Intern_strategy_tweaked : Unintern_strategy =
struct
let unintern_eventdesc : ([>`ANY] as 'a) -> 'a list = failwith "ouch"
end

--
Tim Freeman tim@fungible.com
Which is worse: ignorance or apathy? Who knows? Who cares?
GPG public key fingerprint ECDF 46F8 3B80 BB9E 575D 7180 76DF FE00 34B1 5C78
@vicuna vicuna closed this as completed Mar 15, 2003
@vicuna
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vicuna commented Mar 15, 2003

Comment author: administrator

From: tim@fungible.com

The subject line I gave for the bug is misleading, since the following
code gets essentially the same error and has no typedef and no type
"any":

module type Unintern_strategy = sig
val unintern_eventdesc: ([>`ANY] as 'a) -> 'a list
end

module Intern_strategy_tweaked : Unintern_strategy =
struct
let unintern_eventdesc : ([>`ANY] as 'a) -> 'a list = failwith "ouch"
end

Indeed, this is just another example of misgivings with the value
restriction: failwith "ouch" is a function application, so
unintern_eventdesc cannot be given a polymorphic type.
I suppose you wanted to write:
let unintern_eventdesc : ([>`ANY] as 'a) -> 'a list =
fun _ -> failwith "ouch"
That one should type properly.

 Jacques

@vicuna vicuna added the bug label Mar 19, 2019
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@vicuna