priorities guidelines
-   documentation > community > applications > features
-   mobile > desktop


------------------------------------------------------------------- weeks Jan 4, Jan 11

0.3  goal: start of more public development
done:
- use travis ci
- timeout for tests
- docker image: lambdacube3d/lambdacube3d
- quake map viewer application works for a sufficiently small map  +Csaba
- update online editor to use the new compiler
- tooltip testing
- compiler: ranges in error messages +Andor
- subexpression type tooltips in the editor
- pretty print Exp's defined in CoreToIR.hs
- refactored Builtins.lc
- homepage review (what is lambacube, etc.)
- documentation: overview
- API documentation started
- Hello World example on Haskell
- show pipeline in editor
next:
- document Hello World example on Haskell
- blog about release:
  - few sentences about the past events
  - meeting in december with every team member?
  - new members? Andor, he added support for travisCI and docker
  - we have a roadmap for the next 6 months?
  - links for the documentation
  - few words what to expect
    - new release in every 2-3 weeks
    - stable compiler with type class and frequency support (see TODO)
    - higher level abstractions in the graphics API
    - small game in app-store

------------------------------------------------------------------- weeks Jan 18, Jan 25

0.4  goal: usable compiler
done:
- compiler: fix looping (primes, recursivetexture01)
- refactor test system
- support simple import lists (hiding + explicit)
- support type synonyms
next:
- ambiguity check (compiler): really check type annotations
- ambiguity check (compiler): prohibit constraints like    a ~ List a,  a ~ a -> a, etc.
- compiler: linear time interpretation (type erasure, de bruijn index compatification)
    -   separate types and values (vs. church style lambda)
        -   erease lam var type
        -   separate use of neutral terms
        -   erease univ. pol. arguments of constructors
    -   irrelevance + erasure
    -   cache max. de bruin indices
- compiler: bugfixes as needed
- compiler: (~) :: forall a b . a -> b -> Type

- language feature tests
- automated test env. for backends
- 100% test coverage

- better API documentation
- documentation: getting started: hello world on various platforms  +Csaba

extra:
- ambiguity check (compiler): suppress univ. polymorphic ambiguity
- compiler: record field name handling
- review ShadowMapping.lc test case
- better persentation of types in editor tooltips
- application type tooltips
- pattern variable type tooltips
- compiler: refactor pretty printing
- compiler: bug: head <-> tail  switch: recheck fails (too late)
- compiler: review coe usage (missing?)
- review DemoUtils.lc test case
- minimal quake videos

------------------------------------------------------------------- week Feb 1

refactoring, cleanup, contact with people, etc.

- blog: fast reducer?


------------------------------------------------------------------- weeks Feb 8, Feb 15

0.5  goal: improvement
- docs: feature teaser, 2 min paper videos
- testenv: performance benchmarks
- compiler:  dependent prelude should work again
- compiler:  recheck should not fail - coe missing?
- compiler:  (a ~ b) + (a ~ c)   --->   b ~ c        (fragment06tailrecursion)
- compiler:  review type annotation in where blocks
- compiler: add more structure to witnesses?
- backend:   GLSL codegen doesn't support Vector and tuple patterns (not compiler frontend related):
          fragment02tuple
          fragment02vectorpattern
          fragment05uniform
- backend: basic pipeline optimization (let-floating)
- backend: array support

- floating compiler misc:
    @ patterns
    guards
    guards + where
    pattern guard
    evalXXX not wired in compiler
    view patterns
    pattern synonyms
    constructor operator fixities (also in patterns)
    local pattern matching functions
    dep. pattern matching

------------------------------------------------------------------- weeks Feb 22, Feb 29

0.6  goal: type classes
- docs: feature teaser, 2 min paper videos
- compiler: type classes
        - mutual recursion (inference & reduction)
        - injectivity inference
        - open functions
        - Constraint type: uniqueness of witnesses for types with at most one elements
- compiler:  open type families
- community: blog about compiler internals
- backend: generated backends
- user supplied cpu values like color values and rendering context

------------------------------------------------------------------- week Mar 7

refactoring, cleanup, contact with people, etc.
- blog: c++ backend for opengl es 2.0 / generated backends
- blog: improved quake renderer, slowly turns into haskell quake engine
- blog: dependent type inference
- blog: type classes support

------------------------------------------------------------------- weeks Mar 14, Mar 21

0.7  goal: high-level API

- libs: high level API (lambdacube library) (application driven)
- apps: various prototype experiments (e.g. visual effects, high-level API, FRP)
- compiler: better error messages
    -   don't overnormalize (String => [Char])
    -   ...
- compiler (floating): review parser de-brunin index handling
- compiler (floating) optimization: better De Bruijn indices handling (compactified)
- compiler (floating) optimization: interpreted De Bruijn
- docs: feature teaser, 2 min paper video

------------------------------------------------------------------- weeks Mar 28, Apr 4

0.8  goal: frequencies

- apps: various prototype experiments (e.g. visual effects, high-level API, FRP)
- compiler: frequencies
- libs: fequencies in high level API
- docs: tutorial (like salesforce)
- docs: API documentation

------------------------------------------------------------------- weeks Apr 11, Apr 18

0.9  goal: experiment with FRP

- libs: begin experiments with FRP
- docs: tutorial (like salesforce)
- compiler:  better app typing
- backend: basic GPGPU support
- basic 3d graphics introduction with LambdaCube 3D, something like this: http://petercollingridge.appspot.com/3D-tutorial/generating-objects

------------------------------------------------------------------- week Apr 25

refactoring, cleanup, contact with people, etc.

- blog: pattern match compiler
- blog: frequency support
- blog: higher level abstractions in the graphics API

------------------------------------------------------------------- weeks May 2, May 9

1.0  goal: debug support

- editor improvments
- backend: basic debug support
- testenv: systematic micro tests (with quickcheck?)
- community: gamejam
- docs: feature teaser, 2 min paper video

------------------------------------------------------------------- weeks May 16, May 23

- backend: Unity plugin
- compiler optimization: coe / type class irrelevance switch
- docs: feature teaser, 2 min paper video

------------------------------------------------------------------- week May 30

refactoring, cleanup, contact with people, etc.

------------------------------------------------------------------- weeks Jun 6, Jun 13

- apps: demo for a demoscene party
- backend: profile-based optimization with machine learning
extra:
- write docs for the data definition language and also release the lib

------------------------------------------------------------------- weeks Jun 20, Jun 27

- apps: small game to App Store or Google Play
- docs: document/teach programming skills with dependent types
- community: contact people in industry

------------------------------------------------------------------- end of semester

refactoring, cleanup, contact with people, etc.
reviews, blogs

- plan the route
- blog: data definition language with support: Haskell, PureScript, C++


------------------------------------------------------------------- end of route

2.0
- involving more people
- backend: dynamic pipelines
- backend: dynamic input grouping/restructure for better performance
- Vulkan backend
- compiler: reflection (template Haskell)
- support nested data parallelism
- compiler: self-compilation
- domain-free compiler (move all lambacube specific parts into libraries & backend)
- compiler: Agda modelling

--------------------------------------------------------------------

insert somewhere:

- variable name normalization in the generated pipeline so that the same structures have to be equal
- tail recursion -> GPU
- generate let in shaders
- completion in editor
- editor socket reconnection
- highlight errors in editor
- support injective type families
- setup texture sampler configuration
- setup viewport for render target size (purescript)
- generate warning messages for possible typos in names
- update lambdacube(engine) page on haskell wiki
- warning on missing patterns