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Adding pragma and pragmaoption in C++ code generation [message #1863500]

Tue, 06 February 2024 10:42

Eclipse User

I try to create C++ code from the UML diagram.

For DataType, I want to add a pragma before and after the declaration.

In DataType stereotypes I added PragmaOption and Pragma.

For Pragma Option I set preDecl and postDecl to some pragmas that I want to use, however generated code uses preDecl value for postDecl.

Example:
preDecl = #pragma pack(push,1)
postDecl = #pragma pack(pop, 1)

Generated code uses #pragma pack(push,1) for postDecl.

#pragma pack(push,1)
struct DataPacketTypeDef {
     int a;
     char *b;	
};
#pragma pack(push,1)

Attachment: pragmaoption.JPG
(Size: 32.18KB, Downloaded 240 times)

Re: Adding pragma and pragmaoption in C++ code generation [message #1863513 is a reply to message #1863500]

Wed, 07 February 2024 05:12

Eclipse User

Hi,

this is a bug, unnoticed since some time, as we don ´t use the pragma feature internally. I've created issue https://gitlab.eclipse.org/eclipse/papyrus/org.eclipse.papyrus-designer/-/issues/4
(as SW designer moved to gitlab, this is now a gitlab issue and no longer done via bugzilla)

Re: Adding pragma and pragmaoption in C++ code generation [message #1863623 is a reply to message #1863513]

Fri, 16 February 2024 12:23

Eclipse User

I've created issue https://gitlab.eclipse.org/eclipse/papyrus/org.eclipse.papyrus-designer/-/issues/4
It is hopefully fixed (in nighly build tomorrow)

Re: Adding pragma and pragmaoption in C++ code generation [message #1864598 is a reply to message #1863623]

Wed, 27 March 2024 12:57

Eclipse User

Thanks for the fix for C++.

I checked for C code generation, too. However pragmas are not generated, before and after struct definitions no pragma is added. Is it possible to fix it for C?

Re: Adding pragma and pragmaoption in C++ code generation [message #1864713 is a reply to message #1864598]

Thu, 04 April 2024 08:01

Eclipse User

Pragmas are currently not supported for C, but it might be relatively easy to add it by sharing more code between the C++ and C generator. Please create an issue (with a low priority), but I'm not sure if/when I have the time to work on it.

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