KeywordScope < P1076/Ballots

P1076/Ballots Web>Vhdl2019CollectedRequirements>KeywordScope (2020-02-17, JimLewis) (raw view)EditAttach

---+ Scope of Keywords

%TOC%

---++ Proposal Details
   * Who Updates: Main.JimLewis
   * Date Proposed:30 Mar 2014
   * Date Last Updated: 30 Mar 2014
   * Priority: Low
   * Complexity: High
   * Focus: Language

---++ Current Situation

Currently keywords are in a separate name space from identifiers.

---++ Proposal

Allow identifiers to overload keywords.

   * As we add language keywords to the language it becomes likely that we will collide with a name already used in a design.
   * For example, the natural keyword to use for record IO mode declarations is "mode"
   * Should we consider giving all names including keywords scope and include keywords in the outer most region such that if someone uses a new keyword as a name in their design, the local definition of the name has scope over the keyword.
---++ Use Cases

---++ Arguments Against

Will increase compiler complexity significantly - may be a bad idea

---++ General Comments

---++ Supporters

_Add your signature here to indicate your support for the proposal_

Topic revision: r2 - 2020-02-17 - 15:34:56 - JimLewis

P1076/Ballots