951 – Missing line number: no constructor provided for a class derived from a class with no default constructor

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Issue 951 - Missing line number: no constructor provided for a class derived from a class with no default constructor

Summary: Missing line number: no constructor provided for a class derived from a class...

Status:	RESOLVED FIXED
Alias:	None
Product:	D
Classification:	Unclassified
Component:	dmd (show other issues)
Version:	D1 (retired)
Hardware:	x86 All
Importance :	P2 normal
Assignee:	Walter Bright
URL:
Keywords:	diagnostic
Depends on:
Blocks:

See Also:
Reported:	2007年02月11日 20:13 UTC by Stewart Gordon
Modified:	2014年02月16日 15:25 UTC (History)
CC List:	0 users

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Description Stewart Gordon 2007年02月11日 20:13:06 UTC

----------
class Base {
 this(int x) {}
}
class Derived : Base {}
----------
mln_no_def_this.d: constructor mln_no_def_this.Derived.this no match for implicit super() call in constructor
----------
Presumably, DMD tries to find a line number for the implicit default constructor in Derived, but can't find one and so doesn't give one. If a constructor without a super call is supplied, then the same error occurs but with a line number.
When no constructor has been defined, it should give an appropriate line number, such as the line on which the class definition begins. And perhaps a slightly different error message
mln_no_def_this.d(5): class mln_no_def_this.Derived no match for implicit super() call in implicit default constructor

Comment 1 Thomas Kühne 2007年03月29日 14:30:23 UTC

Added to DStress as
http://dstress.kuehne.cn/nocompile/t/this_15_A.d

Comment 2 Don 2008年07月09日 07:11:42 UTC

Fixed DMD1.032

Comment 3 Walter Bright 2008年07月09日 22:37:31 UTC

Fixed dmd 1.032 and 2.016