'this.constructor()' may induce => compiler runtime error

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#601 'this.constructor()' may induce => compiler runtime error

Status: closed

Owner: dkl

Labels: compiler (247)

Component:

Updated: 2012-10-10

Created: 2012-05-07

Private: No

If no any constructor exists (explicitly or implicitly), the instruction 'this.constructor()' in member procedure induces an "Aborting due to runtime error 12 ("segmentation violation" signal)" from the compiler output:

type vars
a as integer ' = 7
declare sub clear()
end type

sub vars.clear()
this.constructor()
end sub

If a constructor exists, either implicitly due for example to a member field initializer ('a as integer = 7' put in the above example) or due to member string existence, or explicitly, then no more compiler runtime error.
At the contrary and outside member procedure, the instruction 'instance-name.constructor()' never induces compiler runtime error (even if no any constructor exists).

For more information, see FreeBASIC forum at post http://www.freebasic.net/forum/viewtopic.php?p=173900#p173900 and followings.