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Exhaustiveness check wrong for class constructor arguments #6862

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vicuna opened this issue May 9, 2015 · 1 comment
Closed

Exhaustiveness check wrong for class constructor arguments #6862

vicuna opened this issue May 9, 2015 · 1 comment
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@garrigue
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bug typing
Milestone
4.02.2

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@vicuna
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vicuna commented May 9, 2015

Original bug ID: 6862
Reporter: @garrigue
Assigned to: @garrigue
Status: closed (set by @xavierleroy on 2016-12-07T10:49:18Z)
Resolution: fixed
Priority: normal
Severity: minor
Version: 4.02.1
Target version: 4.02.2+dev / +rc1
Fixed in version: 4.02.2+dev / +rc1
Category: typing

Bug description

The following code causes no warning:

type _ opt = Just : 'a -> 'a opt | Nothing : 'a opt
class d (Just x) = object method x : int = x end;;

This is bad, because actually the next expression causes a segmentation fault...

new d Nothing;;
@vicuna
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vicuna commented May 9, 2015

Comment author: @garrigue

Fixed in 4.02 and trunk at revisions 16101 and 16102.

@vicuna vicuna closed this as completed Dec 7, 2016
@vicuna vicuna added the typing label Mar 14, 2019
@vicuna vicuna added this to the 4.02.2 milestone Mar 14, 2019
@vicuna vicuna added the bug label Mar 20, 2019
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@garrigue @vicuna