• Bruno Medeiros (18/18) Oct 24 2005 Is entity (aka symbol?) name shadowing valid or not in D?
• Stewart Gordon (12/31) Oct 26 2005 Yes, if mixins are an exception to this rule, then it should be document...
• Bruno Medeiros (7/38) Oct 29 2005 Well, but is it a rule or is it not? I'd still like to hear from Walter

Bruno Medeiros <daiphoenixNO SPAMlycos.com> writes:

Is entity (aka symbol?) name shadowing valid or not in D?
In statement.html the spec says:
"A block statement introduces a new scope for local symbols. A local 
symbol's name, however, must be unique within the function.

...

   void func2(){

     int x;
     {
       int x;	// illegal, x is multiply defined in function scope
     }
   }
"

However that same code segment compiles quite ok. Also, in mixin.html, 
the first example uses name shadowing to illustrate the use of mixins.


-- 
Bruno Medeiros - CS/E student
"Certain aspects of D are a pathway to many abilities some consider to 
be... unnatural."

Stewart Gordon <smjg_1998 yahoo.com> writes:

Bruno Medeiros wrote:
 Is entity (aka symbol?) name shadowing valid or not in D?
 In statement.html the spec says:
 "A block statement introduces a new scope for local symbols. A local 
 symbol's name, however, must be unique within the function.
 
 ...
 
   void func2(){
 
     int x;
     {
       int x;    // illegal, x is multiply defined in function scope
     }
   }
 "
 
 However that same code segment compiles quite ok.

-> digitalmars.D.bugs

 Also, in mixin.html, 
 the first example uses name shadowing to illustrate the use of mixins.

Yes, if mixins are an exception to this rule, then it should be documented.

Stewart.

-- 
-----BEGIN GEEK CODE BLOCK-----
Version: 3.1
GCS/M d- s:- C++  a->--- UB  P+ L E  W++  N+++ o K-  w++  O? M V? PS- 
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My e-mail is valid but not my primary mailbox.  Please keep replies on 
the 'group where everyone may benefit.

Bruno Medeiros <daiphoenixNO SPAMlycos.com> writes:

Stewart Gordon wrote:
 Bruno Medeiros wrote:
 
 Is entity (aka symbol?) name shadowing valid or not in D?
 In statement.html the spec says:
 "A block statement introduces a new scope for local symbols. A local 
 symbol's name, however, must be unique within the function.

 ...

   void func2(){

     int x;
     {
       int x;    // illegal, x is multiply defined in function scope
     }
   }
 "

 However that same code segment compiles quite ok.

 
 
 -> digitalmars.D.bugs
 
 Also, in mixin.html, the first example uses name shadowing to 
 illustrate the use of mixins.

 
 
 Yes, if mixins are an exception to this rule, then it should be documented.
 
 Stewart.
 

Well, but is it a rule or is it not? I'd still like to hear from Walter 
about it.

-- 
Bruno Medeiros - CS/E student
"Certain aspects of D are a pathway to many abilities some consider to 
be... unnatural."