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Segfault in object system #4560

vicuna opened this Issue Jun 4, 2008 · 1 comment


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vicuna commented Jun 4, 2008

Original bug ID: 4560
Reporter: palomer
Status: closed (set by @garrigue on 2008-06-04T07:32:46Z)
Resolution: fixed
Priority: normal
Severity: crash
Version: 3.09.1
Fixed in version: 3.10.3+dev
Category: -for Caml light use
Has duplicate: #4561
Related to: #3576

Bug description

The following program segfaults in ocamlc.opt version 3.09. It has been verified by others

class c1 =
object (self)
method b =
method c =
method d = self # b

class c2 =
inherit c1
method a = ()

let _ = new c2 # b
let _ = new c1 # b # c # d


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vicuna commented Jun 4, 2008

Comment author: @garrigue

#3576 was not completely solved. Namely, method ids were correctly handled
only when they were coming from the immediately enclosing class, without
extra nesting.
The problem here is that, since method ids do not appear in the typing
environment, there is no clean way to check for which ones are bound.
The solution aopted here is to use a reference, adding method ids when
private method calls are done, and removing them when a class defines them.

@vicuna vicuna closed this Jun 4, 2008

@vicuna vicuna added the caml-light label Mar 14, 2019

@vicuna vicuna added the bug label Mar 19, 2019

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