Difference between revisions of "DIP45"
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* If a module contains a single symbol annotated with the 'export' attribute all compiler internal symbols of this module should recieve the 'export' attribute too (e.g. module info). | * If a module contains a single symbol annotated with the 'export' attribute all compiler internal symbols of this module should recieve the 'export' attribute too (e.g. module info). | ||
* If a class is annotated with the 'export' attribute, all of its public and protected functions and members will automatically recieve the 'export' attribute. Also all its hidden compiler specific symbols will recieve the 'export' attribute. | * If a class is annotated with the 'export' attribute, all of its public and protected functions and members will automatically recieve the 'export' attribute. Also all its hidden compiler specific symbols will recieve the 'export' attribute. | ||
| − | * It should be possible to access TLS variables | + | * It should be possible to access TLS variables across DLL / shared library boundaries. |
| + | * On *nix systems default symbol visibility is changed to hidden, and only with export marked symbols are visible. | ||
==Rationale== | ==Rationale== | ||
Revision as of 08:59, 1 September 2013
| Title: | making export an attribute |
|---|---|
| DIP: | 45 |
| Version: | 1 |
| Status: | Draft |
| Created: | 2013-08-27 |
| Last Modified: | 2013-08-30 |
| Author: | Benjamin Thaut |
| Links: | http://forum.dlang.org/post/5112D61B.5010905@digitalmars.com
http://forum.dlang.org/post/kvhu2c$2ikq$1@digitalmars.com http://d.puremagic.com/issues/show_bug.cgi?id=9816 |
Abstract
Export and its behavior needs to be changed in serveral ways to make it work on Windows and allow better code generation for other plattforms. The Rationale section explains the problem and shows how this DIP solves it.
Description
- The 'export' protection level should be turned into a 'export' attribute.
- If a module contains a single symbol annotated with the 'export' attribute all compiler internal symbols of this module should recieve the 'export' attribute too (e.g. module info).
- If a class is annotated with the 'export' attribute, all of its public and protected functions and members will automatically recieve the 'export' attribute. Also all its hidden compiler specific symbols will recieve the 'export' attribute.
- It should be possible to access TLS variables across DLL / shared library boundaries.
- On *nix systems default symbol visibility is changed to hidden, and only with export marked symbols are visible.
Rationale
Work in progress
Implementation Details
Work in progress
Copyright
This document has been placed in the Public Domain.
