Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
devfest
Search
Anna Bulenkova
October 19, 2013
1
320
devfest
Anna Bulenkova
October 19, 2013
Tweet
Share
More Decks by Anna Bulenkova
See All by Anna Bulenkova
Performance question: functional vs imperative in Ruby @muc_rubyshift
boogiecat
1
260
How to look like a model? MongoDB for Rails apps
boogiecat
0
71
ULCAMP. RubyMine promo. Hade made, grandma recipe.
boogiecat
0
71
Featured
See All Featured
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
46
7.7k
Documentation Writing (for coders)
carmenintech
75
5k
Building an army of robots
kneath
306
46k
Art, The Web, and Tiny UX
lynnandtonic
303
21k
ReactJS: Keep Simple. Everything can be a component!
pedronauck
667
120k
How GitHub (no longer) Works
holman
315
140k
The Language of Interfaces
destraynor
162
25k
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
49
3.1k
[RailsConf 2023] Rails as a piece of cake
palkan
57
5.9k
Making Projects Easy
brettharned
119
6.4k
Optimizing for Happiness
mojombo
379
70k
The Art of Programming - Codeland 2020
erikaheidi
56
14k
Transcript
Hi
Anna Bulenkova Software Developer JetBrains @povergo
RubyMine project
Surviving Environment Disasters Or how we’re suffering making Ruby support
Ruby & Java
IntelliJ platform
Ruby 1995 vs RubyMine 2009
How to make an IDE?
In fact, forget the editor... •Debugging •VCS •Visualisation •SDK &
Libraries management •Frameworks •Something cute and sweet
We still need an editor •Find errors •Autocompletion •Resolve •Find
usages •Rename
Good editor
Roots of evil?
Open Source
Dynamic typing
Errors •Syntax •Everything else
Errors •Syntax - lexer & parser •Lexer - JFlex •Parser
- yourself or GrammarKit •Everything else - need to know what it is
Syntax tree AST + PSI
Syntax tree
Errors •Syntax - lexer & parser •Everything else - need
to know what it is
42
42
Indexing: file- & stub- based •External libraries •Internal content
References •Regular •Multi-resolve
It’s easy. Sometimes
Where to go?
FQN? Haven’t heard of it.
It’s more or less fine if we know the class
Even this is ok
Reassignments
Join types
class_eval
Class eval
Class eval
Class eval
instance_eval
Instance eval
Instance eval
Instance eval: go to declaration
method_missing and friends
Not even an option
Have we met before?
But how?
undef_method and friends
DSLs They are full of evil
DSLs They are full of eval
DSLs They are full of evil
We hardcode
With our own DSL
Hiding-places •Docs •Annotations •Naming conventions •Runtime
Runtime
SLOW
Choose the lesser of two evals
Choose the lesser of two evils
With or without IDE?
@povergo
[email protected]
speakerdeck.com/boogiecat/devfest