[isabelle-dev] NEWS: Computations

Florian Haftmann florian.haftmann at informatik.tu-muenchen.de
Wed Feb 22 20:48:43 CET 2017


Computations generated by the code generator can be embedded
directly into ML, alongside with @{code} antiquotations, using
the following antiquotations:

  @{computation … terms: … datatypes: …} :
    ((term -> term) -> 'ml option -> 'a) -> Proof.context -> term -> 'a
  @{computation_conv … terms: … datatypes: …} :
    (Proof.context -> 'ml -> conv) -> Proof.context -> conv
  @{computation_check terms: … datatypes: …} :
    Proof.context -> conv

See src/HOL/ex/Computations.thy,
src/HOL/Decision_Procs/Commutative_Ring.thy and
src/HOL/Decision_Procs/Reflective_Field.thy for examples and the
tutorial on code generation.

========================================================================

This refers to fd753468786f and is IMHO a remarkable mile stone in the
overall code generation / reflection / proof procedure business after
more than 10 years of previous unsatisfactory attempts in that area.

The details are explained in a dedicated chapter §6 of the tutorial on
code generation.

Cheers,
	Florian

-- 

PGP available:
http://isabelle.in.tum.de/~haftmann/pgp/florian_haftmann_at_informatik_tu_muenchen_de

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