Migratjng Overture to a difgerent IDE Peter W. V. Tran-Jrgensen, - PowerPoint PPT Presentation

Migratjng Overture to a difgerent IDE Peter W. V. Tran-Jørgensen, Tomas Kulik

Contributjon • VDM-Mode for Emacs − Syntax highlightjng − Syntax validatjon − REPL − VDM Templates − Pretuy printjng − Packages accepted into MELPA Peter W. V. Tran-Jørgensen, Tomas Kulik 2

The need  Eclipse usage is falling  Pointed at 16 th Overture workshop  Emacs package as a case study Peter W. V. Tran-Jørgensen, Tomas Kulik 3

Why Emacs? • Popular text editor • Ofuen used as IDE • Massively extensible • Use of third party packages • Less than 400 LoC Peter W. V. Tran-Jørgensen, Tomas Kulik 4

Enabling Emacs packages  prog-mode − Syntax highlightjng and indentatjon rules  comint-mode − REPL (interactjve shell)  fmycheck − Syntax checking framework  yasnippet − Template expansion system  prettjfy-symbols-mode − Replacement of ASCII characters with Unicode Peter W. V. Tran-Jørgensen, Tomas Kulik 5

Syntax highlightjng Peter W. V. Tran-Jørgensen, Tomas Kulik 6

Syntax highlighting  vdm-mode derived from prog-mode − Keyword, type, value highlighting − Pretty printing of characters − Characters saved as ASCII representation − Detection of VDM dialect  Comparable to Overture Peter W. V. Tran-Jørgensen, Tomas Kulik 7

Syntax validatjon Peter W. V. Tran-Jørgensen, Tomas Kulik 8

Syntax validation  Based on flycheck − Errors − Warnings − In margin and echo area − Interactive list of errors − Errors as pop ups Peter W. V. Tran-Jørgensen, Tomas Kulik 9

The REPL Peter W. V. Tran-Jørgensen, Tomas Kulik 10

The REPL  vdm-comint based on comint − Run VDM in REPL-like fashion − Send parts of the model directly to the REPL − Load files associated with current VDM project Peter W. V. Tran-Jørgensen, Tomas Kulik 11

VDM templates Peter W. V. Tran-Jørgensen, Tomas Kulik 12

VDM templates  vdm-snippets based on yasnippet − Generation of skeleton of VDM syntax − Function template expansion − Operation template expansion − Module template expansion − Class template expansion  Generate and fill in placeholders Peter W. V. Tran-Jørgensen, Tomas Kulik 13

What did it take?  Surprisingly little: Peter W. V. Tran-Jørgensen, Tomas Kulik 14

How does it compare? Peter W. V. Tran-Jørgensen, Tomas Kulik 15

Conclusion and future plans  Basic VDM features in few LoC − Syntax highlighting (145) − Syntax validation (32) − REPL (102) − Template expansion (13)  Much more work required to reach full IDE  Language Server Protocol (LSP) − Increase uptake of Overture Peter W. V. Tran-Jørgensen, Tomas Kulik 16

Where to find?  Github:  https://github.com/peterwvj/vdm-mode Peter W. V. Tran-Jørgensen, Tomas Kulik 17