LCS2016_086 < P1076

P1076 Web>VHDL2017>LCS2016_086 (2017-07-22, JimLewis) (raw view)EditAttach
---+ Language Change Specification for All Interface Lists Can Be Ordered Proposal
---++ 

| <sticky><b>LCS Number:</b></sticky> | LCS-2016-086 |
| <sticky><b>Version:</b>   </sticky> | 3 |
| <sticky><b>Date:</b>      </sticky> | 16-Feb-2017  |
| <sticky><b>Status:</b>    </sticky> | Voting |
| <sticky><b>Author:</b>    </sticky> | Kevin Jennings |
| <sticky><b>Email:</b>     </sticky> | [[Main.KevinJennings]] examples: [[Main.JimLewis]] |
| <sticky><b>Source Doc:</b></sticky> | [[OrderingAllInterfaceLists]] |
| <sticky><b>HistoryDoc:</b></sticky> | [[LCS2016_086_History][History]] |
| <sticky><b>Summary:</b>   </sticky> | Allow an interface object to be used in the same interface where it is defined |

<sticky>
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---++ Style Notes
Changes are shown in %RED%red font%ENDCOLOR%.  
Deletions are %RED%<del>crossed out</del>%ENDCOLOR%. 
Editing notes in %GREEN%green font%ENDCOLOR%. 

   
---+++  Details of Language Change 
---++++  LRM 6.5.6.1 Interface Lists 
---+++++ Edit 086.1 Page 78 near middle Delete
<font color="red"><strike>
A name that denotes an interface object declared in a port 
interface list or a parameter interface list shall not
appear in any interface declaration within the interface 
list containing the denoted interface object except to
declare this object.</strike></font>
 
---+++++ Edit 086.2 Page 78 next paragraph
A name that denotes an interface declaration in %RED%<del>a generic</del>%ENDCOLOR% an interface list may appear in %RED%<del>an </del>%ENDCOLOR% a subsequent interface declaration within the %RED%same%ENDCOLOR% interface list. %RED%<del>containing the denoted interface declaration.</del>%ENDCOLOR%
 

---+++++ Edit 086.3 Page 78 next paragraph
NOTE-The %RED%<del>restriction</del> rule%ENDCOLOR% 
mentioned in the previous paragraph makes the following 
%RED%<del>two</del>%ENDCOLOR% interface lists 
%RED%legal<del> illegal</del>%ENDCOLOR%:

---+++++ Edit 086.4 Add
<pre>
<font color="red">
entity E is
    generic (G1: INTEGER; G2: INTEGER := G1; G3, G4, G5, G6: INTEGER);
    port (P1: STRING(G3 to G4); P2: STRING(P1'RANGE); P3: P1'SUBTYPE);
    procedure X (Y1, Y2: INTEGER; Y3: INTEGER range Y1 to Y2; Y4: Y1'SUBTYPE); 
end E;

---+++++ Edit 086.5 Delete
<strike>
entity E is
    port (P1: STRING; P2: STRING(P1'RANGE)); -- Illegal
    procedure X (Y1, Y2: INTEGER; Y3: INTEGER range Y1 to Y2); -- Illegal
end E;

However, the following interface lists are legal:
entity E is
    generic (G1: INTEGER; G2: INTEGER := G1; G3, G4, G5, G6: INTEGER);
    port (P1, P2: STRING (G3 to G4));
    procedure X (Y3: INTEGER range G5 to G6);
end E;
</strike></font>
</pre>
<br>

---++ Comments
%COMMENT%

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Topic revision: r24 - 2017-07-22 - 18:13:48 - JimLewis
P1076