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
290
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
250
How to look like a model? MongoDB for Rails apps
boogiecat
0
55
ULCAMP. RubyMine promo. Hade made, grandma recipe.
boogiecat
0
61
Featured
See All Featured
Raft: Consensus for Rubyists
vanstee
132
6.3k
jQuery: Nuts, Bolts and Bling
dougneiner
59
7.1k
Large-scale JavaScript Application Architecture
addyosmani
504
110k
Practical Orchestrator
shlominoach
182
9.7k
Embracing the Ebb and Flow
colly
80
4.1k
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
187
16k
Thoughts on Productivity
jonyablonski
58
3.8k
5 minutes of I Can Smell Your CMS
philhawksworth
199
19k
Code Reviewing Like a Champion
maltzj
514
39k
What the flash - Photography Introduction
edds
64
11k
A Tale of Four Properties
chriscoyier
151
22k
Infographics Made Easy
chrislema
238
18k
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