lambdacube-compiler

LambdaCube 3D is a DSL to program GPUs

BSD-3-Clause licensed by Csaba Hruska, Péter Diviánszky, Dániel Pék, Andor Pénzes

Maintained by csaba.hruska@gmail.com

This version can be pinned in stack with:lambdacube-compiler-0.5.0.1@sha256:a0f4ccb937c33c6a08f01dde87983a7f7aa8acd00acfcdcfb36a16807278261d,6498

Depends on 29 packages(full list with versions):

Used by 1 package in nightly-2016-03-04(full list with versions):

LambdaCube 3D is a domain specific language and library that makes it possible to program GPUs in a purely functional style.

Changes

compiler
- support local pattern matching functions
- support recursive local definitions
- more polymorph type for equality constraints (~) :: forall a . a -> a -> Type
- tuples are representated as heterogeneous lists
- support one-element tuple syntax: (( element ))
- reduction: don’t overnormalize (String -/-> [Char])
- compiler optimization: names have Int identifiers
libraries/OpenGL API
- use the advantage of heterogeneous lists (simplified and more complete type family instances)
- needed to explicitly denote one-element attribute tuples
- set programmable point size with ProgramPointSize
- use lists instead of streams
- rename
  - fetch_ –> fetch; fetchArrays_ –> fetchArrays
  - zeroComp –> zero; oneComp –> one
codegen
- generate functions in shaders (previously functions were inlined)
- normalized variable names in the generated pipeline
- optimization: remove duplicate shader programs
- pretty printed shader programs
- include compiler version in the generated pipeline as a string info field
testenv
- performance benchmarks (time and memory consumption)
other
- parsec dependency changed to megaparsec
- registered on stackage too (next to HackageDB)

compiler
- support type synonyms
- support simple import lists (hiding + explicit)
- support multiple guards
- handle constructor operator fixities, also in patterns
- definitions are allowed in any order (not just bottom-up)
- desugar node definitions (more robust, previously node definition handling was ad-hoc)
- support qualified module imports
- better tooltip ranges & types
- bugfix: fix looping in type checking of recursive definitions
compiler optimization
- separate types and values (vs. church style lambda)
- separate use of neutral terms
- erease lambda variable type
- erease univ. pol. arguments of constructors
- erease univ. pol. arguments of case functions
- speed up ‘eval’ function
- tried to speedup with cache max. de bruin indices
- use less ‘try’ in parser
libraries
- always put base library modules to include path
- OpenGL API: simplify CullMode: remove FrontFace it is always ccw
- OpenGL API: simplify Depth images handling
testenv
- language feature tests framework
other
- released on HackageDB

compiler
- complete rewrite from scratch
- use De Bruijn indices instead of String names
- pattern match compilation
- compositional type inference is replaced by a zipper-based approach which plays better together with dependent types
libraries/OpenGL API
- interpolation handling is decoupled from vertex shader descriptions
- introduce Stream data type; use just two types of streams instead of 4
testenv
- use Travis CI (continuous integration) with a docker image
- timeout for tests