eiffel-idea

IntelliJ IDEA plugin for Eiffel language support

Still under somewhat-active development (see last commit to see if it's still maintaned)

Download latest plugin release from releases page
Download Eiffel GOBO (we currently support only this one)
- (Windows) Download Microsoft Visual Studio C++
- (*nix) Download any C compiler that you like (chances are, you need to write apt install g++ or brew install g++ if you don't know what that means)
Build GOBO using your C compiler (refer to GOBO website for further instructions)
Install plugin using IDEA standard menu (IDEA -> Preferences -> Plugins -> Install from disk -> Select zip file)
Create new Eiffel project in IDEA (you won't miss its menu option)
Press Plus (Add new SDK) and select Eiffel GOBO SDK
- (Windows) Customize the full path to Microsoft VS home
When creating procedure is done, go Run -> Edit configurations... and add Eiffel GOBO configuration using plus button
Enjoy! (Windows building may still be sometimes incorrect as a result of lack of Windows testers)

Kinda-full EBNF syntax (as of 2006 ECMA-367 with some additions) with parser by Grammar-Kit
Lexer for keywords and symbols
Syntax highlighting for keywords, literals, builtin types
Building support through GEC
Feature name completion with client visibility support (still under testing, but seems to work fine)
Project-wide and library-wide class name completion

Both of the above can be shown on this example

...
ensure
    across 
        1 |..| n
    as
        it
    all
        it.item <= n
    end
end

Example:

local
    a: ARRAY [INTEGER]
do
    a := << 1, 2, 3, 4, 5 >>
end

ionagamed/eiffel-idea