polymorph.maths
ctype
| polymorph.maths | ctype | |
|---|---|---|
| 2 | 2 | |
| 3 | 25 | |
| - | - | |
| 3.8 | 6.2 | |
| about 1 year ago | 28 days ago | |
| Common Lisp | Common Lisp | |
| - | BSD 2-clause "Simplified" License |
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polymorph.maths
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Adding new types and operators to Lisp
If performance is a concern, then you would want to stick to CLHS provided simple-array and create appropriate types using deftype, and then dispatch on the types either by yourself, or by using something like polymorphic-functions and polymorph.maths.
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Common Lisp polymorphic stories.
Example: your equality polymorph here https://github.com/lisp-polymorph/polymorph.maths/blob/master/src/polymorph.maths.lisp
ctype
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Re-targeting (Lisp) compilers
There is significant overlap with SICL and its associated pieces which supply many of the other parts needed to make a Common Lisp. Some of these are Cluster which provides a portable and extensible assembler, Eclector which supplies a portable and extensible reader, Concrete-Syntax-Tree that supports source code tracking during compilation, ctype that implements the Common Lisp type system, and Clostrum that provides first-class environments for e.g. run-time, evaluation, and compilation. The SICL project has as one of its goals the creation of portable infrastructure for implementing Common Lisp, and these pieces are novel building blocks that were created as part of the project.
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Common Lisp polymorphic stories.
Other times, the support is limited by the implementations supported by ctype and cl-form-types (and cl-environments). Although, if there is any good request, I could work on making a dynamic-only ANSI-CL compliant sub-system of PF.
What are some alternatives?
lisp-interface-library - LIL: abstract interfaces and supporting concrete data-structures in Common Lisp
fast-generic-functions - Seal your generic functions for an extra boost in performance.
generic-cl - Generic function interface to standard Common Lisp functions
sealable-metaobjects - A CLOSsy way to trade genericity for performance.
polymorphic-functions - A function type to dispatch on types instead of classes with partial support for dispatching on optional and keyword argument types.
Concrete-Syntax-Tree - Concrete Syntax Trees represent s-expressions with source information
Clostrum - First Class Global Environments
ccl - Clozure Common Lisp
Eclector - A portable Common Lisp reader that is highly customizable, can recover from errors and can return concrete syntax trees
coalton - Coalton is an efficient, statically typed functional programming language that supercharges Common Lisp.