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digitalmars.D - Behaviour of alias this changed

reply "H. S. Teoh" <hsteoh quickfur.ath.cx> writes:
I have some code along these lines:

	struct S {
		short[4] data;
		alias this data;

		string toString() { ... }
	}
	...
	S s;
	writeln(to!string(s));

In dmd 2.059 (I believe) and earlier, this calls S.toString(). However,
in git dmd, this calls data.toString() instead.

I'm just curious about the rationale for this change, and whether
there's a way to override the toString() call so that it always calls
S.toString()?


T

-- 
To err is human; to forgive is not our policy. -- Samuel Adler
May 08 2012
parent =?UTF-8?B?QWxpIMOHZWhyZWxp?= <acehreli yahoo.com> writes:
On 05/08/2012 10:11 AM, H. S. Teoh wrote:
 I have some code along these lines:

 	struct S {
 		short[4] data;
 		alias this data;

 		string toString() { ... }
 	}
 	...
 	S s;
 	writeln(to!string(s));

 In dmd 2.059 (I believe) and earlier, this calls S.toString(). However,
 in git dmd, this calls data.toString() instead.

 I'm just curious about the rationale for this change, and whether
 there's a way to override the toString() call so that it always calls
 S.toString()?


 T

Just a guess: It could be related to const-correctness improvements. Try defining S.toString() as const. Ali -- D Programming Language Tutorial: http://ddili.org/ders/d.en/index.html
May 08 2012